US3808385A - Moisture responsive switch actuator - Google Patents

Moisture responsive switch actuator Download PDF

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Publication number
US3808385A
US3808385A US00279948A US27994872A US3808385A US 3808385 A US3808385 A US 3808385A US 00279948 A US00279948 A US 00279948A US 27994872 A US27994872 A US 27994872A US 3808385 A US3808385 A US 3808385A
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United States
Prior art keywords
switch
absorptive
moisture
members
predetermined amount
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Expired - Lifetime
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US00279948A
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G Klinefelter
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GLEN HILTON PRODUCTS
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G Klinefelter
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Publication of US3808385A publication Critical patent/US3808385A/en
Assigned to GLEN HILTON PRODUCTS reassignment GLEN HILTON PRODUCTS ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KLINEFELTER, MARIE F., AS EXECUTRIX OF THE ESTATE OF GLENN B. KLINEFELTER
Publication of US3808385B1 publication Critical patent/US3808385B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/42—Switches operated by change of humidity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/1842—Ambient condition change responsive
    • Y10T137/1866—For controlling soil irrigation
    • Y10T137/189—Soil moisture sensing

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  • Drying Of Gases (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

A moisture responsive actuator is employed for controlling the operation of a fluid operated sprinkling or irrigating system or the like. The moisture responsive actuator is provided with hygroscopic material which expands in response to contact with rain water to depress a switch to deactivate the sprinkling system, the hygroscopic material contracting upon a drying thereof to release said switch whereupon the sprinkling system is activated.

Claims (11)

1. A moisture responsive actuator which comprises: a housing, a switch located within the housing, means for electrically connecting said switch into a fluid sprinkling system, and moisture absorptive means cooperatively associated with said switch, said moisture absorptive means including at least one absorptive member capable of expanding in response to a predetermined amount of moisture in contact therewith to activate said switch so as to deenergize said sprinkling system, said absorptive member being further capable of retracting upon a drying thereof to deactivate said switch so as to energize said sprinkling system.
2. A moisture responsive actuator, according to claim 1, wherein said moisture absorptive means includes a plurality of absorptive members in stacked relationship with said switch.
3. A moisture responsive actuator, according to claim 2, which further includes: adjustable means for providing a predetermined amount of force on said absorptive members in contact with said switch so as to permit said switch to operate in response to a predetermined amount of moisture in contact with said absorptive members.
4. A moisture responsive actuator, according to claim 3, wherein the absorptive members are comprised of hygroscopic material and are fungus resistant.
5. A moisture responsive actuator, which comprises: a housing, a switch located within said housing, means for electrically connecting said switch into a fluid sprinkling system. moisture absorptive means cooperatively associated with said switch, said moisture absorptive means being of hygroscopic material and fungus resistant and including a plurality of absorptive members in stacked relationship with the switch, said absorptive means capable of Expanding in response to a predetermined amount of moisture in contact therewith to activate said switch so as to deenergize the sprinkling system, said absorptive means being further capable of retracting upon a drying thereof to deactivate the switch so as to energize said sprinkling system, adjustable means for providing a predetermined amount of force on said absorptive means in contact with the switch so as to permit said switch to operate in response to said predetermined amount of moisture in contact with said absorptive means, and said housing including an outer cup-shaped member having a plurality of circumferentially spaced openings in the sleeve thereof, an inner cup-shaped member located within said outer cup-shaped member and having a plurality of circumferentially spaced openings therein, and means for providing relative rotary movement between said housings for positioning said openings with respect to each other for adjustably controlling air currents passing to said absorptive members.
6. A moisture responsive actuator, according to claim 5, wherein each cup-shaped member is provided with at least one opening therein for permitting moisture to freely pass therethrough.
7. A moisture responsive actuator, according to claim 3, wherein the adjustable means includes: a shank for receiving said absorptive members, means for supporting said shank in a fixed relationship with said actuator, and resilient control means cooperatively associated with said shank for imparting a desired force upon said absorptive members and switch.
8. A moisture responsive actuator which comprises: a housing, a switch located within said housing, means for electrically connecting said switch into a fluid sprinkling system, moisture absorptive means cooperatively associated with said switch, said moisture absorptive means including a plurality of absorptive members in stacked relationship with said switch, said absorptive means capable of expanding in response to a predetermined amount of moisture in contact therewith to activate said switch so as to deenergize said sprinkling system, said absorptive means being further capable of retracting upon a drying thereof to deactivate said switch so as to energize said sprinkling system, and adjustable means for providing a predetermined amount of force on said absorptive means in contact with said switch so as to permit said switch to operate in response to said predetermined amount of moisture in contact with said absorptive means, said adjustable means including a shank for receiving said absorptive members, means for supporting said shank in a fixed relationship with said switch, and resilient control means cooperatively associated with said shank for imparting a desired force upon said absorptive members and switch.
9. A moisture responsive actuator, according to claim 8, wherein said switch includes a resilient member, and the lowermost absorptive member is in intimate contact with said resilient control means.
10. A moisture responsive actuator, according to claim 9, which further includes: connecting means extending from said housing for connecting said switch to a location above the ground.
11. A moisture responsive actuator which comprises: an outer cup-shaped housing, an inner cup-shaped housing, each of said housings being provided with a plurality of circumferentially spaced openings, means for providing relative rotary movement between said housings, a switch located within said inner housings, means for electrically connecting said switch into a fluid sprinkling system for maintaining said system normally operative, moisture absorptive means cooperatively associated with said switch, said absorptive means being comprised of a plurality of hygroscopic, disc-shaped, fungus resistant members in stacked relationship and capable of expanding in response to a predetermined amount of rainfall in contact therewith to activate the switch so as to closE said sprinkling system, said absorptive members contracting upon a drying thereof to deactivate the switch and thereby cause said sprinkling system to reopen, and adjustable means for providing a predetermined amount of force on said absorptive members so as to permit said switch to operate in response to said predetermined amount of rainfall in contact with said absorptive members.
US00279948A 1972-08-11 1972-08-11 Moisture responsive switch actuator Expired - Lifetime US3808385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US00279948A US3808385A (en) 1972-08-11 1972-08-11 Moisture responsive switch actuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00279948A US3808385A (en) 1972-08-11 1972-08-11 Moisture responsive switch actuator

Publications (2)

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US3808385A true US3808385A (en) 1974-04-30
US3808385B1 US3808385B1 (en) 1989-01-03

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Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982004232A1 (en) * 1981-05-27 1982-12-09 Steven A Becnel Liquid-sensitive actuator for displacement-responsive devices
US4582494A (en) * 1981-05-27 1986-04-15 Becnel Steven A Protected liquid-sensitive actuator for displacement responsive devices
US4970356A (en) * 1990-06-18 1990-11-13 Amos Gary T Rainfall responsive switch construction
US5060859A (en) * 1990-01-11 1991-10-29 The Toro Company Irrigation control apparatus responsive to soil moisture
US5101083A (en) * 1990-08-17 1992-03-31 The Toro Company Rain switch
WO1993006709A1 (en) * 1991-10-04 1993-04-15 Verncon Pty. Limited Pump control system
US5836339A (en) * 1996-12-31 1998-11-17 Klever; David L. Raindrop counter and control system for irrigation systems
US5848494A (en) * 1996-01-31 1998-12-15 Spelt; Jacob Self-watering apparatus for plant
US6452499B1 (en) 1998-10-07 2002-09-17 Thomas Henry Runge Wireless environmental sensor system
US6570109B2 (en) 2001-10-26 2003-05-27 Hunter Industries, Inc. Quick shut-off extended range hygroscopic rain sensor for irrigation systems
US20050161243A1 (en) * 2004-01-23 2005-07-28 Ingersoll-Rand Company Titanium based containment structures for handheld impact tools
US6977351B1 (en) 2004-10-29 2005-12-20 Hunter Industries, Inc. Moisture absorptive rain sensor with sealed position sensing element for irrigation watering program interrupt
US20060030971A1 (en) * 2004-08-06 2006-02-09 Arnold Nelson Modular irrigation controller
US7010394B1 (en) 2002-10-24 2006-03-07 The Toro Company Intelligent environmental sensor for irrigation systems
US20070193342A1 (en) * 2006-02-17 2007-08-23 Bailey Douglas S Sensor for detecting hydrocarbons
US20080027586A1 (en) * 2006-06-20 2008-01-31 Rain Bird Corporation Sensor Device For Interrupting Irrigation
US20080034859A1 (en) * 2006-08-08 2008-02-14 The Toro Company Raindrop Sensor For An Irrigation System
US20110054794A1 (en) * 2009-08-28 2011-03-03 Teder Rein S Optical moisture sensor
CN103337408A (en) * 2013-06-20 2013-10-02 宁波圣莱达电器股份有限公司 Power switch capable of powering off quickly when meeting water
US8744773B2 (en) 2010-05-19 2014-06-03 Hunter Industries, Inc. Rain sensor with variable shut off
US8981946B2 (en) 2011-10-24 2015-03-17 The Toro Company Soil moisture sensor
US9007050B2 (en) 2010-09-17 2015-04-14 The Toro Company Soil moisture sensor with improved enclosure
US9144204B2 (en) 2006-06-20 2015-09-29 Rain Bird Corporation User interface for a sensor-based interface device for interrupting an irrigation controller
CN105191755A (en) * 2015-11-02 2015-12-30 上海工程技术大学 Irrigation system for vegetation
US9538713B2 (en) 2012-07-13 2017-01-10 The Toro Company Modular irrigation controller
US9655311B1 (en) 2013-12-10 2017-05-23 Hunter Industries, Inc. Absorbent rain sensor with retention basin
US10206341B2 (en) 2014-07-21 2019-02-19 Rain Bird Corporation Rainfall prediction and compensation in irrigation control
CN110043835A (en) * 2019-05-05 2019-07-23 王云 Projection LOGO lamp based on LED light source
US10444769B2 (en) 2017-04-24 2019-10-15 Rain Bird Corporation Sensor-based interruption of an irrigation controller
CN111096179A (en) * 2020-01-15 2020-05-05 东莞明信电子有限公司 Water sprinkling system controller and control method
US10757873B2 (en) 2017-04-24 2020-09-01 Rain Bird Corporation Sensor-based interruption of an irrigation controller
US11009142B2 (en) * 2015-11-13 2021-05-18 Rain Bird Corporation Moisture sensing valves and devices
US11006589B2 (en) 2017-12-29 2021-05-18 Rain Bird Corporation Weather override irrigation control systems and methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2369215A (en) * 1943-05-27 1945-02-13 Crise Electric Mfg Company Humidity-responsive switch
GB853285A (en) * 1957-04-18 1960-11-02 Ronald Charles Frampton Improvements in horticultural and agricultural irrigating or watering systems for plants and seeds
US3210492A (en) * 1962-05-09 1965-10-05 Penn Controls Precipitation detector
US3562731A (en) * 1968-04-01 1971-02-09 Charles Jui Cheng Hsu Surface water detector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2369215A (en) * 1943-05-27 1945-02-13 Crise Electric Mfg Company Humidity-responsive switch
GB853285A (en) * 1957-04-18 1960-11-02 Ronald Charles Frampton Improvements in horticultural and agricultural irrigating or watering systems for plants and seeds
US3210492A (en) * 1962-05-09 1965-10-05 Penn Controls Precipitation detector
US3562731A (en) * 1968-04-01 1971-02-09 Charles Jui Cheng Hsu Surface water detector

Cited By (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982004232A1 (en) * 1981-05-27 1982-12-09 Steven A Becnel Liquid-sensitive actuator for displacement-responsive devices
US4582494A (en) * 1981-05-27 1986-04-15 Becnel Steven A Protected liquid-sensitive actuator for displacement responsive devices
US5060859A (en) * 1990-01-11 1991-10-29 The Toro Company Irrigation control apparatus responsive to soil moisture
US4970356A (en) * 1990-06-18 1990-11-13 Amos Gary T Rainfall responsive switch construction
US5101083A (en) * 1990-08-17 1992-03-31 The Toro Company Rain switch
WO1993006709A1 (en) * 1991-10-04 1993-04-15 Verncon Pty. Limited Pump control system
US5848494A (en) * 1996-01-31 1998-12-15 Spelt; Jacob Self-watering apparatus for plant
US6161329A (en) * 1996-01-31 2000-12-19 Spelt; Jacob Automatic watering device for potted plants
US5836339A (en) * 1996-12-31 1998-11-17 Klever; David L. Raindrop counter and control system for irrigation systems
US6452499B1 (en) 1998-10-07 2002-09-17 Thomas Henry Runge Wireless environmental sensor system
US6570109B2 (en) 2001-10-26 2003-05-27 Hunter Industries, Inc. Quick shut-off extended range hygroscopic rain sensor for irrigation systems
US7010394B1 (en) 2002-10-24 2006-03-07 The Toro Company Intelligent environmental sensor for irrigation systems
US8862275B2 (en) 2002-10-24 2014-10-14 The Toro Company Intelligent environmental sensor for irrigation systems
US7912588B2 (en) 2002-10-24 2011-03-22 The Toro Company Intelligent enviromental sensor for irrigation systems
US7962245B2 (en) 2002-10-24 2011-06-14 The Toro Company Intelligent environmental sensor for irrigation systems
US20060100747A1 (en) * 2002-10-24 2006-05-11 Runge Thomas H Intelligent environmental sensor for irrigation systems
US20110238230A1 (en) * 2002-10-24 2011-09-29 Runge Thomas H Intelligent Environmental Sensor For Irrigation Systems
US10123493B2 (en) 2002-10-24 2018-11-13 The Toro Company Intelligent environmental sensor for irrigation systems
US7363113B2 (en) 2002-10-24 2008-04-22 The Toro Company Intelligent environmental sensor for irrigation systems
US20080249664A1 (en) * 2002-10-24 2008-10-09 Runge Thomas H Intelligent Enviromental Sensor For Irrigation Systems
US20050161243A1 (en) * 2004-01-23 2005-07-28 Ingersoll-Rand Company Titanium based containment structures for handheld impact tools
US20100036536A1 (en) * 2004-08-06 2010-02-11 Arnold Nelson Modular Irrigation Controller
US7613546B2 (en) 2004-08-06 2009-11-03 The Toro Company Modular irrigation controller
US20060030971A1 (en) * 2004-08-06 2006-02-09 Arnold Nelson Modular irrigation controller
US7916458B2 (en) 2004-08-06 2011-03-29 The Toro Company Modular irrigation controller
US6977351B1 (en) 2004-10-29 2005-12-20 Hunter Industries, Inc. Moisture absorptive rain sensor with sealed position sensing element for irrigation watering program interrupt
US7525444B2 (en) 2006-02-17 2009-04-28 Perma-Pipe, Inc. Sensor for detecting hydrocarbons
US20110041588A1 (en) * 2006-02-17 2011-02-24 Perma-Pipe, Inc. Sensor for detecting hydrocarbons
US8049638B2 (en) 2006-02-17 2011-11-01 Perma-Pipe, Inc. Sensor for detecting hydrocarbons
US20070193342A1 (en) * 2006-02-17 2007-08-23 Bailey Douglas S Sensor for detecting hydrocarbons
US20080027586A1 (en) * 2006-06-20 2008-01-31 Rain Bird Corporation Sensor Device For Interrupting Irrigation
US10345487B2 (en) 2006-06-20 2019-07-09 Rain Bird Corporation Sensor device for use in controlling irrigation
US20110224836A1 (en) * 2006-06-20 2011-09-15 Rain Bird Corporation Sensor device for interrupting irrigation
US20110238227A1 (en) * 2006-06-20 2011-09-29 Rain Bird Corporation Sensor device for interrupting irrigation
US11297786B2 (en) 2006-06-20 2022-04-12 Rain Bird Corporation User interface for a sensor-based interface device for interrupting an irrigation controller
US11346981B2 (en) 2006-06-20 2022-05-31 Rain Bird Corporation Sensor device for use in controlling irrigation
US11822048B2 (en) 2006-06-20 2023-11-21 Rain Bird Corporation Sensor device for use in controlling irrigation
US11957083B2 (en) 2006-06-20 2024-04-16 Rain Bird Corporation User interface for a sensor-based interface device for interrupting an irrigation controller
US8733165B2 (en) 2006-06-20 2014-05-27 Rain Bird Corporation Sensor device for use in controlling irrigation
US7949433B2 (en) 2006-06-20 2011-05-24 Rain Bird Corporation Sensor device for interrupting irrigation
US10206342B2 (en) 2006-06-20 2019-02-19 Rain Bird Corporation User interface for a sensor-based interface device for interrupting an irrigation controller
US10849287B2 (en) 2006-06-20 2020-12-01 Rain Bird Corporation User interface for a sensor-based interface device for interrupting an irrigation controller
US9500770B2 (en) 2006-06-20 2016-11-22 Rain Bird Corporation Sensor device for use in controlling irrigation
US9144204B2 (en) 2006-06-20 2015-09-29 Rain Bird Corporation User interface for a sensor-based interface device for interrupting an irrigation controller
US20080034859A1 (en) * 2006-08-08 2008-02-14 The Toro Company Raindrop Sensor For An Irrigation System
US7552632B2 (en) 2006-08-08 2009-06-30 The Toro Company Raindrop sensor for an irrigation system
US8271198B2 (en) 2009-08-28 2012-09-18 Hydreon Corporation Optical moisture sensor
US20110054794A1 (en) * 2009-08-28 2011-03-03 Teder Rein S Optical moisture sensor
WO2011031296A1 (en) 2009-08-28 2011-03-17 Pilkington Group Limited Optical moisture sensor
US8744773B2 (en) 2010-05-19 2014-06-03 Hunter Industries, Inc. Rain sensor with variable shut off
US9007050B2 (en) 2010-09-17 2015-04-14 The Toro Company Soil moisture sensor with improved enclosure
US9326462B2 (en) 2011-10-24 2016-05-03 The Toro Company Soil moisture sensor
US8981946B2 (en) 2011-10-24 2015-03-17 The Toro Company Soil moisture sensor
US9538713B2 (en) 2012-07-13 2017-01-10 The Toro Company Modular irrigation controller
US10542684B2 (en) 2012-07-13 2020-01-28 The Toro Company Modular irrigation controller
CN103337408A (en) * 2013-06-20 2013-10-02 宁波圣莱达电器股份有限公司 Power switch capable of powering off quickly when meeting water
US9655311B1 (en) 2013-12-10 2017-05-23 Hunter Industries, Inc. Absorbent rain sensor with retention basin
US10206341B2 (en) 2014-07-21 2019-02-19 Rain Bird Corporation Rainfall prediction and compensation in irrigation control
CN105191755A (en) * 2015-11-02 2015-12-30 上海工程技术大学 Irrigation system for vegetation
US11009142B2 (en) * 2015-11-13 2021-05-18 Rain Bird Corporation Moisture sensing valves and devices
US11803198B2 (en) 2017-04-24 2023-10-31 Rain Bird Corporation Sensor-based interruption of an irrigation controller
US10757873B2 (en) 2017-04-24 2020-09-01 Rain Bird Corporation Sensor-based interruption of an irrigation controller
US11119513B2 (en) 2017-04-24 2021-09-14 Rain Bird Corporation Sensor-based interruption of an irrigation controller
US10444769B2 (en) 2017-04-24 2019-10-15 Rain Bird Corporation Sensor-based interruption of an irrigation controller
US11957084B2 (en) 2017-10-23 2024-04-16 Rain Bird Corporation Sensor-based interruption of an irrigation controller
US11357182B2 (en) 2017-10-23 2022-06-14 Rain Bird Corporation Sensor-based interruption of an irrigation controller
US11006589B2 (en) 2017-12-29 2021-05-18 Rain Bird Corporation Weather override irrigation control systems and methods
CN110043835A (en) * 2019-05-05 2019-07-23 王云 Projection LOGO lamp based on LED light source
CN110043835B (en) * 2019-05-05 2021-01-05 广州耀有光照明科技有限公司 Projection LOGO lamp based on LED light source
CN111096179B (en) * 2020-01-15 2023-11-28 东莞明信电子有限公司 Water sprinkling system controller and control method
CN111096179A (en) * 2020-01-15 2020-05-05 东莞明信电子有限公司 Water sprinkling system controller and control method

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Publication number Publication date
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STCF Information on status: patent grant

Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES)

RR Request for reexamination filed

Effective date: 19880407

AS Assignment

Owner name: GLEN HILTON PRODUCTS, 7606 COMPTON ROAD, RICHMOND,

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Effective date: 19880921

Owner name: GLEN HILTON PRODUCTS, VIRGINIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KLINEFELTER, MARIE F., AS EXECUTRIX OF THE ESTATE OF GLENN B. KLINEFELTER;REEL/FRAME:004998/0847

Effective date: 19880921

B1 Reexamination certificate first reexamination