US3761649A - Multiturn rotary switch - Google Patents
Multiturn rotary switch Download PDFInfo
- Publication number
- US3761649A US3761649A US00273826A US3761649DA US3761649A US 3761649 A US3761649 A US 3761649A US 00273826 A US00273826 A US 00273826A US 3761649D A US3761649D A US 3761649DA US 3761649 A US3761649 A US 3761649A
- Authority
- US
- United States
- Prior art keywords
- shaft
- shaft means
- rotatable
- frame
- rotatable elements
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H25/00—Switches with compound movement of handle or other operating part
- H01H25/06—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H25/00—Switches with compound movement of handle or other operating part
- H01H25/06—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement
- H01H25/065—Operating part movable both angularly and rectilinearly, the rectilinear movement being along the axis of angular movement using separate operating parts, e.g. a push button surrounded by a rotating knob
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
Definitions
- ABSTRACT A switch in which rotational movement of the switch Cl ZOO/l7 Z shaft is effective to move a selected switch rotor rela- 1 HOlh tive to its corresponding stator with axial motion of the Field Of Search ZOO/6 l l l 1 shaft or a portion thereof being used for selection of a ZOO/14, 18, 153 LA, 156, 166 SD, 168 S, 17 particular switch rotor.
- Axial movement of the shaft -5 may be manual, by the operator of the switch, or it may be automatic when the switch has reached a predeter
- References Cited mined angular position may be manual, by the operator of the switch, or it may be automatic when the switch has reached a predeter
- the present invention relates to a rotary switch in which rotation of the switch shaft operates a selected section of the switch with axial movement of the switch shaft being used for selection of a particular switch sectron.
- Another purpose of the invention is a rotary switch of the type described in which manual axial movement of the shaft or a portion thereof is effective to select one or more switch sections.
- Another purpose is a rotary switch of the type described in which automatic axial movement of the shaft or a portion therof is effective to select one or more switch sections.
- Another purpose is a rotary switch in which the shaft or a portion thereof can be moved axially at a given angular position of the shaft to couple the shaft to different switch sections.
- a rotary switch of the type described having a pair of switch sections and a shaft which is axially movable to couple the shaft to either one of the switch sections.
- Another purpose is a rotary switch of the type described having a plurality of switch sections and coupling means arranged to connect any one or more of said switch sections to the shaft for movement thereof.
- Another purpose is a rotary switch of the type described including index means effective to control the position of all of the individual switch sections.
- FIG. 1 is an axial section through a switch of the type described
- FIG. 2 is a partial detail view of the shaft structure of FIG. 1;
- FIG. 3 is an axial section, similar to FIG. 1, of a modifled form of switch, but on a reduced scale;
- FIG. 4 is a section along plane 44 of FIG. 3;
- FIG. 5 is an axial section, similar to FIG. 3, showing a modified form of the invention
- FIG. 6 is a detail of the structure shown in FIG. 5;
- FIG. 7 is an axial section, similar to FIGS. 3 and 5, showing a modified form of the invention.
- FIG. 8 is an axial section, similar to FIG. 7, a modified form of the invention.
- FIG. 9 is an axial section of a further modified form of the invention.
- FIG. 10 is an axial section showing a modified form of the invention.
- FIG. II is a detail of the structure shown in FIG. 10;
- FIG. 12 is an axial section, similar to FIG. 10, showing a modified form of the invention.
- FIG. I3 is a detail of the structure shown in FIG. I2;
- FIG. 14 is a partial axial section illustrating an index mechanism for use with the switch structure disclosed.
- FIG. 15 is a section along plane I5l5 of FIG. 14.
- a shaft 10 is mounted within a frame consisting of an insulating bearing plate 12 and a housing member 14, with the bearing plate and housing member being fastened together by studs or the like 16.
- a plurality of insulating spacers 18 are effective to position switch sections 20 and 22 within the frame.
- a knob 26 fastened to the outer end of the shaft 10 adjacent a panel 23 is effective for rotating and axially moving the shaft as described hereinafter.
- a shaft return spring 26 is positioned about a reduced portion of the shaft 28 at its inner end, with the reduced portion extending through an opening 30 in the bearing plate 12. The spring 26 will normally maintain the shaft in the position shown in FIG. l.
- the switch sections 20 and 22 may be conventional and they may include stators 32 and 34 made of insulating material, each of which mount a plurality of circumferentially positioned clips 36. Each of the switch sections include rotors 38 and 40, made of insulating material, which are in alignment with their corresponding stators, with each of the rotors mounting blades 42, as is conventional. Contact terminals 44 may be positioned at the outside of the stators 20 and 22 for connection into electrical circuits.
- the rotors and stators shown are conventional and have not been described in detail.
- Each of the rotors 38 and 40 have collars 46 and 48 which are concentric with the shaft 10 and spaced slightly outwardly therefrom.
- the collars may be integral with their respective rotors.
- Mounted on the shaft 10 and fixed for rotation and axial movement therewith is a coupling 50 formed of insulating material.
- Each of the rotors 46 and 48 may have notches 52 and 54 which face toward the coupling 50. There may be two or more such notches on each of the rotor collars.
- the coupling 50 may have a pair of oppositely directed projections 56 and 58 which extend toward the notches 52 and 54 in the rotors. Thus, the coupling 50 may connect the shaft to either one of the rotors.
- a radially extending pin 60 may be fixed to the shaft for movement therewith.
- a pin stop 62 in the form of a plate, is positioned within the frame and has an opening 64 for passage of the shaft and a pin opening 66. At a particular angular position of the shaft the pin 60 will be in alignment with the pin opening 66 to thus permit the shaft to axially move from the position of FIG. 1, toward a position in which the shaft 50 is coupled to rotor 38. At this position, the pin 60 will be on the opposite side of the central web 68 forming a part of the pin stop 62.
- rotation of the knob 24 is effective, as in a conventional switch, to move the rotor 40 relative to its stator 22 through a full 360 and thus form various electrical circuit connections between the clips and the blades on the rotor and the stator.
- pin 60 will be in alignment with opening 66 and the shaft may be manually moved axially, such that the coupling 50 will move from the position in which it is coupled with the rotor 40 to a position in which it is coupled, through the projection 56 and notches 52 to rotor 38. Pin 60 will have moved to the opposite side of web 68.
- the switch may be rotated through 360 to the various detented switch positions for a particular switch section. After rotation through 360, the switch may be moved axially so that the first rotor is uncoupled and the second rotor is coupled to the shaft. The'switch may then again be rotated through 360 for operation of the second switch section.
- axial motion of the shaft is used for rotor selection and rotational motion of the shaft-is used for operation of a selected rotary section. Axial movement of the shaft is only permitted at a particular angular location.
- a shaft 70 is arranged to operate one of two rotors, indicated at 72 and 74.
- a spool 76 rotates with shaft 70, but may move axially relative thereto.
- the exterior of a portion of the spool 76 may be threaded, as at 78, and is in threaded engagement with a stationary nut 80 fixed to the frame.
- the opposite ends of the spool, indicated at 82 and 84, may have a square cross section, shown in FIG. 4.
- the openings 86 and 88 in the rotors 72 and 74 will have the same cross section such that the spool ends may be positioned within the rotors and rotation of the spool will be effective to turn the rotors.
- the spool 76 In operation, as the shaft 70 and spool 76 are rotated, the spool 76 will be moved axially because of the threaded mountdescribed above. The spool will move axially from the position shown in FIG. 3 in which rotor 72 is coupled to a position in which rotor 74 will be coupled. The transition from one rotor to another will take place at a predetermined angular area of the shaft.
- the shaft 70 may have two essentially complete circular rotations, with each rotation controlling one of the two rotors.
- a shaft 90 is positioned to operate either rotor 92 or rotor 94.
- a spool 96 axially movable on shaft 90, has an outwardly extending flange 98 positioned adjacent rotor 92.
- a detent arrangement comprising a ball 100 which fits within a pocket 102 in the flange 98 and a mating pocket 104 in the rotor 92 is effective to couple rotor 92 to the shaft 90.
- a stop is indicated at 106, and may take a variety of forms, for example a projection on rotor 92 overlying a portion of the stator 108 and arranged for contact with a portion of the stator.
- the stop 106 will prevent further rotation of rotor 92.
- the shaft 90 will move the spool 96 away from rotor 92 as there will no longer be a pocket to receive the ball 100.
- the spool will be moved out of the coupled arrangement with rotor 92.
- a coil spring 110 positioned about the shaft normally maintains spool 96 in the position shown in which it is coupled to rotor 92.
- a projection 112 on the opposite end of spool 96 will be received within an opening 114 on rotor 94 so that the spool can then be coupled to that rotor.
- rotation of shaft 90 is effective to move rotor 92 through the coupling arrangement made up of the ball 100 and the mating pockets 102 and 104.
- Spool 96 will move away from rotor 92 and will move into a coupling arrangement with rotor 94.
- the shaft may rotate through generally a full turn when coupled to each rotor. Rotation in the opposite direction will reverse the sequence of operation.
- a shaft 116 has a cam 118 keyed thereto for simultaneous rotational movement.
- the cam 118 may move axially relative to the shaft.
- Rotors 120 and 122 may each have collars and notches similar to the construction of FIG. 1.
- the opposite ends of cam 118 may have projections which are the same or similar to the projections on the coupling 50 in FIG. 1.
- a cam track indicated at 124 is formed about the periphery of the cam 118.
- a cam follower 132 is positioned in a fixed relationship on the frame.
- FIG. 8 The construction of FIG. 8 is substantially the same as that for FIG. 7, except that instead of only having a pair of rotors, four rotors may be driven by a single shaft.
- a shaft 134 mounts an axially movable key 136 having a plurality of projections 138, 140, 142 and 144.
- the key 136 is movable in a keyway 146 and will move axially with a cam as described hereinafter.
- Rotors 148, 150, 152 and 154 are positioned within the frame and are concentric with the shaft.
- a cam 156 having a plurality of cam tracks, one for each rotor, and a plurality of gates, is positioned adjacent a cam follower 158 which is attached to the frame. Cam 156 rotates with shaft 134, but may move axially relative-thereto.
- a shaft 160 mounts a cam 162.
- the cam 162 is similar to that shown in FIG. 8, except thatall of the tracks, with the exception of the gates 164, have been removed from the cam.
- the cam follower 166 will only be in engagement with the cam when one of the gates is positioned at the cam follower.
- There are four rotors and four projections on the key 168 which is axially movable in a keyway 170 formed in the shaft 160. Again the key is attached to the cam to move axially therewith.
- a detent spring 172 is fixed to the shaft 160 and has an end 174 formed to seat in one of a series of recesses 176 in the surface of the key 168.
- cam 162 will rotate with it.
- the cam and the key 168 will be axially shifted to uncouple one rotor and couple the next rotor.
- the detent spring 172 will have its end 174 moved from one recess to the next.
- the purpose of the detent spring 172 is to insure that there will be no axial movement of the key except at that time as the cam follower 166 is positioned in a gate 164.
- Axial stability in the construction of FIG. 8 is provided by the tracks of the cam, whereas in FIG. 9 axial latching or locking is effected by the spring 172. Otherwise the operation of the structure of FIG. 9 is substantially the same as that in FIG. 8.
- a shaft 180 has an interior chamber mounting a movable pin 182 and a spring 184. There is anopening 186 in the periphery of the shaft and a portion 188 of the pin extends outwardly therefrom.
- Rotors 190 and 192 each have coupling members 194 and 196 which extend toward the projection 188 on the pin. Each of the coupling members 194 and 196 may have pockets or the like 198 to receive the rounded projection 188 of the pin.
- pin 182 and its projection 188, through the force of spring 184 are coupled to rotor 190.
- rotation of the shaft is effective to move rotor 190.
- stop 200 which prevents further movement of rotor 190 relative to its stator after the shaft is turned through a given angle. Further movement of the shaft is effective to move the projection 188 out of the pocket 198 on coupling member 194, such an axial movement moving the projection 188 into a seating arrangement with the mating pocket on coupling member 196. Further rotation of the shaft will move rotor 192 to which it is now coupled.
- axial movement of the shaft to uncouple one rotor and couple another rotor is accomplished at a predetermined angular position of the shaft and is performed automatically. There may be generally full rotation of the shaft to control each rotor. Rotation of the shaft in one direction is effective to move the shaft to uncouple one rotor and couple a second, with rotation of the shaft in the opposite direction reversing the coupling sequence.
- a shaft 202 has an interior chamber 204. Positioned within the chamber 204 is a plunger 206 having a threaded portion 208, a double conical portion 210 and a head 212. A back plate 214 is attached to the plunger. The interior of chamber 204 adjacent the plunger 206 is threaded to mate with the threads on the plunger. A spring 216 having an enlarged center area 218 has opposite ends 220 which couple with projections 222 on rotor 224 and projections 226 on rotor 228. In the position of FIG. 12 the shaft and the plunger are coupled to rotor 224.
- the uncoupling and coupling of the rotors is automatic and takes place at a given angular position of the shaft and generally after a full turn of the shaft for use in controlling each rotor.
- FIGS. 14 and 15 illustrate the application of an index mechanism to a switch construction having a plurality of individual rotors which may be coupled and uncoupled to the switch shaft.
- index mechanism Of importance in such an index mechanism is to insure that the mechanism is applicable and usable at all axial positions of the switch shaft.
- a switch shaft is indicated at 240 and a housing is indicated at 242.
- the housing member 242 may have a threaded bushing section 244 which may be used in mounting the switch mechanism to an instrument panel.
- a star wheel 246 is staked in a conventional manner to the shaft 244 for rotation therewith.
- the star wheel 246 may have a plurality of notches 248 uniformly spaced about its periphery to define a plurality of angular shaft positions which are coincident with the relationship between the various rotors and their associated stators. As is common, there will be a given number of index positions for use by the rotor and stator.
- the front of the housing 242 may have an outwardly extending projection 250 which will be used to properly radially position the switch mechanism with the instruction panel and with a knob or the like which will be used on the front of the panel to operate the switch.
- the housing 242 defines a chamber 252, with the bottom of the chamber being closed by a stop plate 254.
- the housing 242 has peripherally extending openings 256 on opposite sides thereof. Adjacent the openings 256 housing portions 258, as shown in FIG. 14, have the appearance of inwardly extending arms which are effective to contain the opposite end of springs 260 to position the springs 260 within the openings 2'56.
- Rollers 262 are held by the springs 260 against the star wheel 246 with the rollers functioning as detent members.
- the star wheel can be held at any angular position by the rollers 262 which are biased in an inward direction by the springs 260.
- the rollers 262 are held by the housing in an axial direction, but are permitted to move radially outwardly relative to the star wheel by the springs 260.
- the length of the rollers 262 is of a sufficient extent to effectively provide an indexing function at all axial positions of the shaft 240.
- the indexing mechanism shown can function with any one of the switch constructions disclosed in FIGS. l-l3 with the axial length of the rollers 262 depending upon the degree of axial movement of the shaft 240, to move from one switch section to another.
- a rotary switch including a frame, shaft means mounted for rotation in said frame, a plurality of insulative planar switch sections mounted to said frame and concentric with said shaft means, each switch section including a rotatable switching element, cooperating means on each rotatable element and said shaft means for coupling each of said rotatable elements to said shaft means at only one predetermined angular position of said shaft means, axial movement of at least a portion of said shaft means relative to said rotatable elements coupling and uncoupling said rotatable elements to said shaft means at said predetermined position.
- the structure of claim 1 further characterized by and including detent means carried by the shaft means and positioned to cooperate with means on the frame for positioning the shaft at any one of a predetermined number of angular locations.
- the means on the frame cooperating with the detent means on the shaft includes a plurality of rollers positioned to be in contact with said detent means, and spring means biasing said rollers toward said shaft means.
- a rotary switch including a frame, shaft means mounted for rotation in said frame, a plurality of insulative planar switch sections mounted to said frame, each switch section including a rotatable switching element, cooperating means on each rotatable element and said shaft means for coupling each of said rotatable elements to said shaft means for rotation therewith, axial movement of at least a portion of said shaft means relative to said rotatable elements coupling and uncoupling said rotatable elements to said shaft means, and spring means normally biasing said shaft means toward a position in which one of said rotatable elements is coupled to the shaft means.
- said latch includes a pin extending outwardly from said shaft means and a plate attached to the frame, a slot in said plate, said pin being of the size and shape to pass through said slot, positioning of said pin on one side of said plate positions the shaft means for coupling with one of said rotatable elements, positioning of the pin on the opposite side of the plate positions the shaft means for coupling with another of said rotatable elements.
- a rotary switch including a frame, shaft means mounted for rotation in said frame, a plurality of insulative planar switch sections mounted to said frame and concentric with said shaft means, each switch section including a rotatable switching element, cooperating means on each rotatable element and said shaft means for coupling each of said rotatable elements to said shaft means for rotation therewith, including a collar on said shaft means positioned between a pair of rotatable elements, said collar and rotatable-elements having mating clutch surfaces, axial movement of at least a portion of said shaft means relative to said rotatable elements coupling and uncoupling said rotatable elements to said shaft means.
- the structure of claim 13 further characterized in that there are two switch sections, said collar being positioned between said switch sections and arranged to be coupled to either one of said rotatable elements.
- a rotary switch including a frame, shaft means mounted for rotation in said frame, a plurality ofinsulative planar switch sections mounted to said frame, each switch section including a rotatable switching element, cooperating means on each rotatable element and said shaft means.
- said shaft means including a threaded collar, threaded means on said frame in engagement with said threaded collar, rotation of said shaft means causing the threaded means on the frame and said threaded collar to shift said shaft means axially relative to said rotatable elements to couple and uncouple said rotatable elements to said shaft means.
- a rotary switch including a frame, shaft means mounted for rotation in said frame, a plurality of insulative planar switch sections mounted to said frame, each switch section including a rotatable switching element, said shaft means including an axially movable collar, spring means biasing said collar in one direction, detent means effective between said collar and one of said rotatable elements, said spring means biasing said collar and detent means into a position such that rotation of said shaft means moves said one rotatable element, and second detent means positioned to engage said collar with another of said rotatable elements, axial movement of at least a portion of said shaft means relative to said rotatable elements coupling and uncoupling said rotatable elements to said shaft means.
- a rotary switch including a frame, shaft means mounted for rotation in said frame, a plurality of insulative planar switch sections mounted to said frame, each switch section including a rotatable switching element, cooperating means on each rotatable element and said shaft means for coupling each of said rotatable elements to said shaft means for rotation therewith, said shaft means including an axially slidable cam shaft, a cam follower positioned on said frame, rotation of said cam being effective to shift a portion. of said shaft means to couple and uncouple said rotatable elements.
- a rotary switch including a frame, shaft means mounted for rotation in said frame, a plurality of insulative planar switch sections mounted to said frame and concentric with said shaft means, each switch section including a rotatable switching element, cooperating means on each rotatable element and said shaft means for coupling each of said rotatable elements to said shaft means for rotation therewith, including a springbiased pin positioned within said shaft means, axial movement of at least a portion of said shaft means relative to said rotatable elements coupling and uncoupling said rotatable elements to said shaft means.
- a rotary switch including a frame, shaft means mounted for rotation in said frame, a plurality of insulative planar switch sections mounted to said frame, each switch section including a rotatable switching element, cooperating means on each rotatable element and said shaft means for coupling each of said rotatable elements and said shaft means for rotation therewith, said shaft means including a shaft and a movable cam on said shaft, a cam follower attached to said frame and positioned for movement in said cam, rotation of said shaft axially shifting a portion of said shaft means to couple and uncouple said rotatable elements to said shaft means.
- the structure of claim 23 further characterized by andincluding a keyway in said shaft and a movalbe key positioned in said keyway, with portions of said key being positioned for engagement with said rotatable elements.
- a rotary switch including a frame, shaft means mounted for rotation in said frame, a plurality of insulative planar switch sections mounted to said frame, each switch section including a rotatable switching element, cooperating means on each rotatable element and said shaft means for coupling each of said rotatable elements to said shaft means for rotation therewith including a plunger movable within said shaft means, a spring positioned by said plunger and arranged to cooperate with said rotatable elements, axial movement of at least a portion of said shaft means relative to said rotatable elements coupling and uncoupling said rotatable elements to said shaft means.
Abstract
Description
Claims (27)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27382672A | 1972-07-21 | 1972-07-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3761649A true US3761649A (en) | 1973-09-25 |
Family
ID=23045556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00273826A Expired - Lifetime US3761649A (en) | 1972-07-21 | 1972-07-21 | Multiturn rotary switch |
Country Status (1)
Country | Link |
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US (1) | US3761649A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3857059A (en) * | 1971-03-19 | 1974-12-24 | Tektronix Inc | Oscilloscope sweep system with two sweep generators having speed rate switches and sweep mode switches operated by a control knob |
US3862383A (en) * | 1972-10-02 | 1975-01-21 | Kielak Tadeusz | Multiposition rotary switch assembly with coupling sleeve for segmented rotor |
US3912896A (en) * | 1972-09-20 | 1975-10-14 | Clarion Co Ltd | Switch and toner with universal shaft joint |
US4146758A (en) * | 1976-02-14 | 1979-03-27 | Alps Electric Co., Ltd. | Rotary switch assembly |
US4166200A (en) * | 1975-08-11 | 1979-08-28 | Tektronix, Inc. | Compact rotary switch construction |
DE3008784A1 (en) * | 1980-03-07 | 1981-10-01 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Rotary switch with two contact sets - has spindle moved inwards or outwards axially for selective engagement of either set |
US4352096A (en) * | 1978-10-02 | 1982-09-28 | Nixdorf Computer Ag | Device for providing a modulo-n check character |
US5438172A (en) * | 1993-08-16 | 1995-08-01 | Ford Motor Company | Zero backlash position encoder |
US6005299A (en) * | 1996-09-24 | 1999-12-21 | Vdo Control Systems, Inc. | Electronic apparatus provided with a bidirectional rotary switch |
US6404420B1 (en) | 1998-05-29 | 2002-06-11 | Mannesmann Vdo Ag | Electronic device having a rotary switch and a display screen |
US6558261B1 (en) | 2000-11-15 | 2003-05-06 | Honeywell International Inc. | Actuator drive and display mechanism |
US20160209045A1 (en) * | 2015-01-20 | 2016-07-21 | Robertshaw Controls Company | Electro-mechanical energy regulator providing enhanced simmer performance |
US11810741B2 (en) | 2020-11-09 | 2023-11-07 | Robertshaw Controls Company | Increased push travel alternative for energy regulator |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2811594A (en) * | 1954-09-20 | 1957-10-29 | Rca Corp | Switch |
US2927168A (en) * | 1957-02-19 | 1960-03-01 | Franklin M Brown | Multiple rotary switch control |
US3254165A (en) * | 1963-11-19 | 1966-05-31 | Globe Union Inc | Rotary switch actuator for actuating multiple rotor sections and including secondary elongated rod actuator |
US3403580A (en) * | 1966-12-29 | 1968-10-01 | Jack A. English | Indexing mechanism and method of making the same |
-
1972
- 1972-07-21 US US00273826A patent/US3761649A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2811594A (en) * | 1954-09-20 | 1957-10-29 | Rca Corp | Switch |
US2927168A (en) * | 1957-02-19 | 1960-03-01 | Franklin M Brown | Multiple rotary switch control |
US3254165A (en) * | 1963-11-19 | 1966-05-31 | Globe Union Inc | Rotary switch actuator for actuating multiple rotor sections and including secondary elongated rod actuator |
US3403580A (en) * | 1966-12-29 | 1968-10-01 | Jack A. English | Indexing mechanism and method of making the same |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3857059A (en) * | 1971-03-19 | 1974-12-24 | Tektronix Inc | Oscilloscope sweep system with two sweep generators having speed rate switches and sweep mode switches operated by a control knob |
US3912896A (en) * | 1972-09-20 | 1975-10-14 | Clarion Co Ltd | Switch and toner with universal shaft joint |
US3862383A (en) * | 1972-10-02 | 1975-01-21 | Kielak Tadeusz | Multiposition rotary switch assembly with coupling sleeve for segmented rotor |
US4166200A (en) * | 1975-08-11 | 1979-08-28 | Tektronix, Inc. | Compact rotary switch construction |
US4146758A (en) * | 1976-02-14 | 1979-03-27 | Alps Electric Co., Ltd. | Rotary switch assembly |
US4352096A (en) * | 1978-10-02 | 1982-09-28 | Nixdorf Computer Ag | Device for providing a modulo-n check character |
DE3008784A1 (en) * | 1980-03-07 | 1981-10-01 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Rotary switch with two contact sets - has spindle moved inwards or outwards axially for selective engagement of either set |
US5438172A (en) * | 1993-08-16 | 1995-08-01 | Ford Motor Company | Zero backlash position encoder |
US6005299A (en) * | 1996-09-24 | 1999-12-21 | Vdo Control Systems, Inc. | Electronic apparatus provided with a bidirectional rotary switch |
US6404420B1 (en) | 1998-05-29 | 2002-06-11 | Mannesmann Vdo Ag | Electronic device having a rotary switch and a display screen |
US6558261B1 (en) | 2000-11-15 | 2003-05-06 | Honeywell International Inc. | Actuator drive and display mechanism |
US6578686B2 (en) | 2000-11-15 | 2003-06-17 | Honeywell International Inc. | Actuator drive and display mechanism |
US20160209045A1 (en) * | 2015-01-20 | 2016-07-21 | Robertshaw Controls Company | Electro-mechanical energy regulator providing enhanced simmer performance |
US11566793B2 (en) * | 2015-01-20 | 2023-01-31 | Robertshaw Controls Company | Electro-mechanical energy regulator providing enhanced simmer performance |
US11810741B2 (en) | 2020-11-09 | 2023-11-07 | Robertshaw Controls Company | Increased push travel alternative for energy regulator |
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