US3311935A - Bed vibrating device - Google Patents
Bed vibrating device Download PDFInfo
- Publication number
- US3311935A US3311935A US473280A US47328065A US3311935A US 3311935 A US3311935 A US 3311935A US 473280 A US473280 A US 473280A US 47328065 A US47328065 A US 47328065A US 3311935 A US3311935 A US 3311935A
- Authority
- US
- United States
- Prior art keywords
- disc
- motor
- springs
- base plate
- grid
- 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
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D9/00—Cradles ; Bassinets
- A47D9/02—Cradles ; Bassinets with rocking mechanisms
- A47D9/04—Cradles ; Bassinets with rocking mechanisms with disconnectable rockers
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D9/00—Cradles ; Bassinets
- A47D9/02—Cradles ; Bassinets with rocking mechanisms
- A47D9/057—Cradles ; Bassinets with rocking mechanisms driven by electric motors
Definitions
- the vibrating device of the invention has,
Description
April 4, 1967 R. H. PETTY BED VIBRATING DEVICE 2 Sheets-Sheet 1 Filed July 20, 1965 INVENTOR.
Robert H. Petty ATTORNEY April 4, 1967 R. H. PETTY 3,311,935
BED VIBRATING DEVICE Filed July 20, 1965 2 Sheets-Sheet 2 l N VEN TOR. Robert H. Petty ATTORNEY United States Patent 3,311,935 BED VIBRATING DEVICE Robert H. Petty, P.0. Box 2314, Sanford, N.C. 27332 Filed July 20, 1965, Ser. No. 473,280 1 Claim. (Cl. -109) This invention relates to a bed vibrator and, more specifically, to an apparatus adapted to be releasably attached to the grid springs of a baby bed in a manner to impart a general reciprocating motion to the springs and, thus, to the mattress carried thereby.
Numerous devices have been designed to induce vibrations in a baby crib for the purpose of inducing sleep. The majority of these devices have been complicated in construction and have necessitated a change in structural arrangement of the crib. Also, these devices were generally connected to the frame of the crib which caused the same to rattle and make uncommon noises as well as induce vibrations therein.
Therefore, an object of this invention is to provide a unitary structure which is joined only to the bed springs for inducing a vertical and reciprocatory motion therein.
Another object of this invention is to provide a baby bed vibrator which is adapted to vary the amplitude of the reciprocatory motion produced thereby.
A further object of this invention is to provide mounting means for a crib vibrator that may easily be secured to or removed from the grid springs of a baby crib without the use of special equipment or tools.
A still further object of this invention is to provide a baby crib vibrator with a pivotally mounted motor which is adapted to apply a constant driving force to an unbalanced but concentrically mounted disc.
Further objects and advantages of the invention will be apparent from the following description taken in conjunction with the accompanying drawings, wherein:
FlGUREl is a sectional, pictorial view of a crib showing the apparatus attached to the grid springs which are received by the crib structure;
FIGURE 2 is an elevational view of the right side of the apparatus showing the drive shaft in communication with the weighted, circular disc;
FIGURE 3 is a left hand, elevational view ofthe apparatus showing the motor in a tilted position;
FIGURE 4 is a partial section and side view of the apparatus taken along lines 4-4 of FIGURE 1 showing the special arrangement of the casing and elements therein.
A preferred embodiment of this invention includes in combination with a baby crib having horizontally aligned, mattress-supporting grid springs, an apparatus comprising a base plate which is mounted on the bottom of the springs by means of rods that extend from the base plate over a section of the grid springs and back to the base plate. A mounting plate is rigidly and centrally mounted on the base plate and extends downwardly. The mounting plate has a cavity located therein. A motor which receives a power supply from a suitable source is partially mounted in the cavity and is pivotally attached to the mounting plate thereby adapting the motor to swing through a small arc. The motor also includes a drive shaft which extends laterally therefrom and which has a friction surface. A substantially circular disc is concentrically and rotatably mounted on a post which is attached to the mounting plate. The disc has its peripheral surface frictionally engaging and supporting the drive shaft of the motor and against which the disc is forced. The motor weight creates a moment about the pivot point of the motor thereby constantly keeping the friction surface of the drive shaft against the outer periphery of the circular disc. The disc is provided with location.
3,311,335 Patented Apr. 4, 1967 ice an elongated and radially extending slot which partially and slidably receives a weight of a desired magnitude. By securing the weight at a predetermined position along the length of the slot, the amplitude of the vertical reciprocation may be selected. Various speed motors may be employed however with a disc of approximately five and one-half inches; 2. disc speed of 350 rpm. has given satisfactory results. If a long, slow amplitude is desired, the weight is moved toward the extremity of the disc and is securely positioned at that location; if a short, fast amplitude is desired, the weight is moved inwardly toward the axis of the disc and fixed at that To complete the structure an outer housing covers the motor and disc apparatus.
Referring to the detailed description, crib 10 is comprised of supporting sides 11 and 12 and end 13. The lower portions of sides 11 and 12 are adapted to receive channels 14 and 15, respectively, which run approximately the length of supporting sides 11 and 12. A mattress-supporting grid spring broadly designated as 16 is comprised of individual lengths 17, spring means 18 and frame 19 with spring means 18 connecting individual lengths 17 to frame 19. Grid spring 16 coincides with and is adapted to be received by channels 14 and 15 and thereby provide a resilient support for mattress 20.
The apparatus is firmly secured to the grid springs 16 by means of a base plate 25 and rods 26 and 27. Rods 26 and 27 have a length sufiicient to span a plurality of lengths 17 thereby adapting the same to rest on the upper surface of grid spring 16. Rods 26 and 27 have curved end portions which extend downwardly through the plane in which grid springs 16 reside and have threaded end portions which extend through base plate 25 and which are adapted to receive nuts 28 which, when tightened, firmly secure base plate 25 to grid spring 16. It can easily be seen that rods 26 and 27 and base plate 25 combine to form a fastening means which may easily be dismounted thereby adapting the apparatus to be positioned at most any location beneath the grid springs 16.
A mounting plate 30 is rigidly and centrally secured to base plate 25 by screws (not shown), adhesive or any equivalent means and extends vertically and downwardly from the plane thereof. Plate 30 is provided with a cavity 31 which is adapted to partially receive the structure of an electric motor 32. Motor 32 is pivotally mounted on plate 30 by nut and bolt arrangement 33. The length of the arc through which motor 32 may pivot is defined by slot 34 that houses a travel bolt-nut combination 35 which in turn is secured to motor 32. Travel 35 also horizontally stabilizes the upper portions of motor 32. The bolt portion of travel 35 has a diameter which is substantially smaller than the width of slot 34 so as not to interfere with the swing of travel 35 through its arc. Motor 32 receives a power supply by means of cord 36. A drive shaft 37 which is an integral part of motor 32 extends outwardly therefrom and is provided with a friction sleeve surface 38 which may be rubber sleeve or the like.
To insulate this device and to reduce the level of =3 noise produced thereby, a housing 50 is provided to contourly enclose motor 32, mounting plate 30 and disc 41 and is adapted to be secured to base plate 25 by means of rods 26 and 27 and threaded nuts 28.
In operation, base plate 25 is secured to grid springs 16 by means of rods 26 and 27. Weight 45 is adjustably positioned in elongated slot 43 to give the desired am plitude of reciprocation of the device upon the rotation of disc 41. The friction sleeve 38 of drive shaft 37 is positioned against periphery 42 of disc 41 by pivoting motor 32 about shaft 33. Upon the energization of motor 32, drive shaft 37 is rotated thereby rotating disc 41 in a geared down relationship which results in a vertical reciprocation of springs 16 and mattress 20. While not shown an electric timer may be employed or conventional switch means for cutting the power on and off,
In summary, the vibrating device of the invention has,
the advantage that it can be quickly installed and removed. It also has the advantage of being adapted to vibrate the mattress supporting spring directly which eliminates both noise and lost motion encountered when the ends or sides of the baby bed are rocked. By having the device of the invention suspended below the springs, the mattress can reside in its normal fashion and except for the presence of the necessary power cord is otherwise hidden from view. The device according to the invention has the further advantage of being simple to adjust in order to increase or decrease the amplitude of vibration. As previously noted, all that is necessary is to loosen the outer housing clamp nuts which frees the housing and makes the disc weight available for adjustment. Since children of different weight and age seem to respond to different amounts of rocking such ease of adjustment is of considerable practical importance to the parents.
This invention is of course not to be limited to the specific embodiment and features shown and described herein but is to be given the scope of the following claim.
What is claimed is:
In combination with a baby crib having horizontally aligned, spaced mattress-supporting grid springs, an apparatus comprising:
(a) a plurality of U-shaped rods each having spaced parallel leg portions terminating in threaded ends and a straight portion connecting said spaced leg portions, said straight portions residing on and above said springs and said spaced leg portions extending downwardly through selected spaces between said springs;
(b) a base plate located adjacent and immediately beneath said springs and slidably mounted on said leg portions of said U-shaped rods;
(c) a mounting plate secured to and extending downwardly from said base plate and having a cavity located therein;
(d) an electric motor residing in said cavity and adjustably secured to said mounting plate, said motor including a drive shaft extending outwardly therefrom and driven thereby;
(e) a vibration inducing means including a post extending outwardly from said mounting plate and parallel to said shaft, a circular disc concentrically and rotatably mounted on said post and weight means mounted on said disc, said disc having its peripheral surface frictionally engaging a portion of said shaft and partially supporting said electric motor by means of said shaft whereby upon the energization of said motor, said disc is rotated to induce vertical oscillations in said apparatus;
(f) a housing being effective to enclose said mounting plate, said motor and said vibration inducing means, said housing engaging said base plate and being slidably mounted on said leg portions of said U-shaped rods; and
(g) clamp means threadably mounted on said ends effective to securely clamp said housing against said base plate and thereby clamp said base plate against said springs.
References Cited by the Examiner UNITED STATES PATENTS 957,277 5/1910 Underwood 248-16 X 2,939,627 6/1960 Greiner 248-16 X 2,951,479 9/1960 Sellner 128-33 3,027,892 4/1962 Searl 128-33 3,035,572 5/1962 Houghthaling 128-33 3,194,522 7/1965 Azneer 5-109 X 3,279,461 10/1966 Oliver 128-33 CASMIR A. NUNBERG, Primary Examiner.
R. D. KRAUS, Assistant Examiner.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US473280A US3311935A (en) | 1965-07-20 | 1965-07-20 | Bed vibrating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US473280A US3311935A (en) | 1965-07-20 | 1965-07-20 | Bed vibrating device |
Publications (1)
Publication Number | Publication Date |
---|---|
US3311935A true US3311935A (en) | 1967-04-04 |
Family
ID=23878902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US473280A Expired - Lifetime US3311935A (en) | 1965-07-20 | 1965-07-20 | Bed vibrating device |
Country Status (1)
Country | Link |
---|---|
US (1) | US3311935A (en) |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3529311A (en) * | 1968-07-01 | 1970-09-22 | N B Crawford | Crib bouncer for tranquilizing infants |
US3797273A (en) * | 1972-06-01 | 1974-03-19 | Interroyal Corp | Adjustable bed motor mount |
US3878570A (en) * | 1971-10-07 | 1975-04-22 | Charles J Donnelly | Environmental control attachment and crib |
US4328598A (en) * | 1980-05-27 | 1982-05-11 | Northwest Bedding Co. | Mattress foundation with vibrator |
EP0054423A1 (en) * | 1980-12-12 | 1982-06-23 | McGrillen, Arthur Robert | Device for use with a perambulator |
EP0092784A2 (en) * | 1982-04-26 | 1983-11-02 | Pauline V. Shakas | Infant transitional sensory system |
US4448410A (en) * | 1981-08-10 | 1984-05-15 | Harold Kosoff | Electrically-powered baby swing |
WO1986003388A1 (en) * | 1984-12-10 | 1986-06-19 | Rosen Karl Gustaf | Method and device for reducing the risk of disturbing noise from small children |
US4681096A (en) * | 1983-11-18 | 1987-07-21 | Cuervo Armando A | Method and apparatus for therapeutic motion and sound treatment of infants |
WO1989000412A1 (en) * | 1987-07-14 | 1989-01-26 | Sweet Dreems, Inc. | Method and apparatus for therapeutic motion and sound treatment of infants |
US4947832A (en) * | 1986-11-26 | 1990-08-14 | Blitzer Avrum H | Apparatus and method for treating or relieving colicky infants |
US4951331A (en) * | 1990-01-12 | 1990-08-28 | Pereira Fred A | Crib mattress patting device |
US4958627A (en) * | 1988-06-30 | 1990-09-25 | Park Ki D | Therapeutic bed |
US5660597A (en) * | 1992-09-29 | 1997-08-26 | Fox; Lawrence A. | Vibratory child pacifying device |
US5713832A (en) * | 1996-04-23 | 1998-02-03 | Product Development Consulting Inc. | Massaging furniture with electric vibration device and eccentric rotor |
WO1998017155A1 (en) * | 1996-10-21 | 1998-04-30 | Locus Technology Limited | Variable speed rotary vibrator |
US6363559B1 (en) | 1999-08-18 | 2002-04-02 | Warmkraft, Inc. | Massage motor mounting assembly |
US6434767B1 (en) | 2001-01-18 | 2002-08-20 | Kolcraft Enterprises, Inc. | Floor support for bassinet mounted in a play yard |
US6505361B1 (en) * | 1999-04-27 | 2003-01-14 | Ken Hayashibara | Vibration generator |
US20030236476A1 (en) * | 2002-05-15 | 2003-12-25 | Non-Invasive Monitoring Systems, Inc. | Reciprocating movement platform for the external addition of pulses of the fluid channels of a subject |
US6785922B2 (en) | 2001-12-27 | 2004-09-07 | Kolcraft Enterprises, Inc. | Mattress with internal vibrator |
US20060084514A1 (en) * | 2004-10-20 | 2006-04-20 | Speedie Michael A | Systems and methods for moving a baby container |
US20060116748A1 (en) * | 2003-04-14 | 2006-06-01 | Aaron Kaplan | Stepped balloon catheter for treating vascular bifurcations |
US20060207022A1 (en) * | 2005-03-15 | 2006-09-21 | Levaughn Jenkins | Baby crib with oscillating mechanism |
US20060282025A1 (en) * | 2003-09-12 | 2006-12-14 | Mcdonald Gerald A | Portable vibration device |
US7174582B1 (en) | 2005-08-17 | 2007-02-13 | Kevin J Leary | Crib mattress bouncer |
US20070159016A1 (en) * | 2004-02-04 | 2007-07-12 | Louis Olivier | Vibration generator and assemblies embodying same |
US20090131185A1 (en) * | 2004-10-20 | 2009-05-21 | Michael Alan Speedie | Systems and methods for moving a baby container |
WO2013134835A1 (en) * | 2012-03-13 | 2013-09-19 | Alves Muniz Reinaldo | Super-vibrating bed with joint strengthening apparatus |
US8784227B2 (en) | 2004-10-20 | 2014-07-22 | Michael Alan Speedie | Systems and methods for moving a container containing a human, plant, animal, or non-living object |
US20160022525A1 (en) * | 2014-07-22 | 2016-01-28 | Sharon Galitzer | Sensorimotor Discs for Infants and Babies |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US957277A (en) * | 1906-06-22 | 1910-05-10 | Gen Electric | Motor-driving mechanism. |
US2939627A (en) * | 1958-09-29 | 1960-06-07 | Lennox Ind Inc | Blower mounting construction |
US2951479A (en) * | 1958-06-05 | 1960-09-06 | John W Sellner | Exercise and massage device |
US3027892A (en) * | 1960-05-18 | 1962-04-03 | Stacy F Searl | Bed vibrator |
US3035572A (en) * | 1960-06-20 | 1962-05-22 | Magic Fingers Inc | Vibrator |
US3194522A (en) * | 1963-06-11 | 1965-07-13 | Azneer Leonard | Device for mounting a vibrator on bedsprings |
US3279461A (en) * | 1964-02-10 | 1966-10-18 | American Massage Sales & Mfg C | Vibratory unit for box springs |
-
1965
- 1965-07-20 US US473280A patent/US3311935A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US957277A (en) * | 1906-06-22 | 1910-05-10 | Gen Electric | Motor-driving mechanism. |
US2951479A (en) * | 1958-06-05 | 1960-09-06 | John W Sellner | Exercise and massage device |
US2939627A (en) * | 1958-09-29 | 1960-06-07 | Lennox Ind Inc | Blower mounting construction |
US3027892A (en) * | 1960-05-18 | 1962-04-03 | Stacy F Searl | Bed vibrator |
US3035572A (en) * | 1960-06-20 | 1962-05-22 | Magic Fingers Inc | Vibrator |
US3194522A (en) * | 1963-06-11 | 1965-07-13 | Azneer Leonard | Device for mounting a vibrator on bedsprings |
US3279461A (en) * | 1964-02-10 | 1966-10-18 | American Massage Sales & Mfg C | Vibratory unit for box springs |
Cited By (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3529311A (en) * | 1968-07-01 | 1970-09-22 | N B Crawford | Crib bouncer for tranquilizing infants |
US3878570A (en) * | 1971-10-07 | 1975-04-22 | Charles J Donnelly | Environmental control attachment and crib |
US3797273A (en) * | 1972-06-01 | 1974-03-19 | Interroyal Corp | Adjustable bed motor mount |
US4328598A (en) * | 1980-05-27 | 1982-05-11 | Northwest Bedding Co. | Mattress foundation with vibrator |
EP0054423A1 (en) * | 1980-12-12 | 1982-06-23 | McGrillen, Arthur Robert | Device for use with a perambulator |
US4448410A (en) * | 1981-08-10 | 1984-05-15 | Harold Kosoff | Electrically-powered baby swing |
EP0092784A2 (en) * | 1982-04-26 | 1983-11-02 | Pauline V. Shakas | Infant transitional sensory system |
EP0092784A3 (en) * | 1982-04-26 | 1984-10-17 | Pauline V. Shakas | Infant transitional sensory system |
US4681096A (en) * | 1983-11-18 | 1987-07-21 | Cuervo Armando A | Method and apparatus for therapeutic motion and sound treatment of infants |
WO1986003388A1 (en) * | 1984-12-10 | 1986-06-19 | Rosen Karl Gustaf | Method and device for reducing the risk of disturbing noise from small children |
US5003651A (en) * | 1984-12-10 | 1991-04-02 | Rosen Karl G | Crib with vibration attenuating means |
US4947832A (en) * | 1986-11-26 | 1990-08-14 | Blitzer Avrum H | Apparatus and method for treating or relieving colicky infants |
WO1989000412A1 (en) * | 1987-07-14 | 1989-01-26 | Sweet Dreems, Inc. | Method and apparatus for therapeutic motion and sound treatment of infants |
US4958627A (en) * | 1988-06-30 | 1990-09-25 | Park Ki D | Therapeutic bed |
US4951331A (en) * | 1990-01-12 | 1990-08-28 | Pereira Fred A | Crib mattress patting device |
US5660597A (en) * | 1992-09-29 | 1997-08-26 | Fox; Lawrence A. | Vibratory child pacifying device |
US5713832A (en) * | 1996-04-23 | 1998-02-03 | Product Development Consulting Inc. | Massaging furniture with electric vibration device and eccentric rotor |
WO1998017155A1 (en) * | 1996-10-21 | 1998-04-30 | Locus Technology Limited | Variable speed rotary vibrator |
US6505361B1 (en) * | 1999-04-27 | 2003-01-14 | Ken Hayashibara | Vibration generator |
US6363559B1 (en) | 1999-08-18 | 2002-04-02 | Warmkraft, Inc. | Massage motor mounting assembly |
US6434767B1 (en) | 2001-01-18 | 2002-08-20 | Kolcraft Enterprises, Inc. | Floor support for bassinet mounted in a play yard |
US6785922B2 (en) | 2001-12-27 | 2004-09-07 | Kolcraft Enterprises, Inc. | Mattress with internal vibrator |
US7228576B2 (en) | 2002-05-15 | 2007-06-12 | Non-Invasive Monitoring Systems, Inc. | Reciprocating movement platform for the external addition of pulses to the fluid channels of a subject |
US20030236476A1 (en) * | 2002-05-15 | 2003-12-25 | Non-Invasive Monitoring Systems, Inc. | Reciprocating movement platform for the external addition of pulses of the fluid channels of a subject |
WO2003096953A3 (en) * | 2002-05-15 | 2004-02-26 | Non Invasive Monitoring Syst | Reciprocating movement platform for the external addition of pulses to the fluid channels of a subject |
US7111346B2 (en) | 2002-05-15 | 2006-09-26 | Non-Invasive Monitoring Systems, Inc. | Reciprocating movement platform for the external addition of pulses of the fluid channels of a subject |
US20060116748A1 (en) * | 2003-04-14 | 2006-06-01 | Aaron Kaplan | Stepped balloon catheter for treating vascular bifurcations |
US20060282025A1 (en) * | 2003-09-12 | 2006-12-14 | Mcdonald Gerald A | Portable vibration device |
US20070159016A1 (en) * | 2004-02-04 | 2007-07-12 | Louis Olivier | Vibration generator and assemblies embodying same |
US20060084514A1 (en) * | 2004-10-20 | 2006-04-20 | Speedie Michael A | Systems and methods for moving a baby container |
US20090131185A1 (en) * | 2004-10-20 | 2009-05-21 | Michael Alan Speedie | Systems and methods for moving a baby container |
US8083601B2 (en) | 2004-10-20 | 2011-12-27 | Michael Alan Speedie | Systems and methods for moving a baby container |
US8784227B2 (en) | 2004-10-20 | 2014-07-22 | Michael Alan Speedie | Systems and methods for moving a container containing a human, plant, animal, or non-living object |
US20060207022A1 (en) * | 2005-03-15 | 2006-09-21 | Levaughn Jenkins | Baby crib with oscillating mechanism |
US7174582B1 (en) | 2005-08-17 | 2007-02-13 | Kevin J Leary | Crib mattress bouncer |
WO2013134835A1 (en) * | 2012-03-13 | 2013-09-19 | Alves Muniz Reinaldo | Super-vibrating bed with joint strengthening apparatus |
US20160022525A1 (en) * | 2014-07-22 | 2016-01-28 | Sharon Galitzer | Sensorimotor Discs for Infants and Babies |
US10045903B2 (en) * | 2014-07-22 | 2018-08-14 | Sharon Galitzer | Sensorimotor discs for infants and babies |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3311935A (en) | Bed vibrating device | |
US6431646B1 (en) | Vibrator/bouncer attachment for infant seats | |
US4570616A (en) | Vibrator massager using beat frequency | |
US5713832A (en) | Massaging furniture with electric vibration device and eccentric rotor | |
US3653080A (en) | Rocking infant seat | |
US4150668A (en) | Massage device | |
US5660597A (en) | Vibratory child pacifying device | |
US4620334A (en) | Infant rocker | |
US4911429A (en) | Motorized swing | |
EP0250263B1 (en) | Device for rocking baby carriage | |
US3813816A (en) | Polishing apparatus | |
US4546764A (en) | Postural drainage bed | |
JP2011101801A (en) | Child motion device | |
WO1985003473A1 (en) | Cast cutter apparatus | |
US3225365A (en) | Crib rocking device | |
US3031687A (en) | Oscillating bed | |
US3762402A (en) | Foot massaging machine | |
US5188095A (en) | Portable vibrating platform | |
US3820614A (en) | Baby carriage reciprocator | |
US3139630A (en) | Rhythm rocker | |
US3727607A (en) | Vibratory massaging device | |
US4951331A (en) | Crib mattress patting device | |
US2668302A (en) | Vibrating bed | |
US2522906A (en) | Christmas tree vibrator | |
US2694394A (en) | Mechanical vibrator for therapeutic use |