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Publication numberUS3533095 A
Publication typeGrant
Publication dateOct 6, 1970
Filing dateJan 2, 1969
Priority dateJan 2, 1969
Publication numberUS 3533095 A, US 3533095A, US-A-3533095, US3533095 A, US3533095A
InventorsJames Collins
Original AssigneeJames Collins, Carl Boyer
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Inflatable pad with alarm
US 3533095 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Oct. 6, 1970 COLLINS I "3,533,095

Q INFLATABLE PAD WITH ALARM Filed Jan. 2,1969

BATTERY CHARGER BATTERY BUZZER fATTORNEY United States Patent 3,533,095 INFLATABLE PAD WITH ALARM James Collins, Florence, Ky., assignor of one-half to Carl Boyer, Hamersville, Ohio Filed Jan. 2, 1969, Ser. No. 788,576 Int. Cl. A01k 45/00; G08b 13/10; G08r 21/00 US. Cl. 340-272 a 3 Claims ABSTRACT OF THE DISCLOSURE An inflatable pad which is designed to assist the owner of a mare, who is about to deliver a foal, by warning, audibly and visually, the owner of the displacement of the weight of the mare upon the inflatable pad at delivery time, so that said mare may be assisted in the delivery.

My invention relates to alarm mechanisms and more particularly to a mattress alarm for use in a stall maintained on a horse farm.

My invention also relates to an alarm mechanism which may be used in rest homes or hospitals, Where patients or occupants may indicate, by change in position, the need for attention.

The principal object of my invention is to provide an alarm system where reactive forces on a pad or mattress cause an alarm to be sounded when an animal such as a mare lies down on this mattress.

Another object of my invention is to provide an inflatable pad or mattress, having a valve connection so calibrated that the displacement of the weight of a standing mare will cause an activation of an alarm system connected within the system.

Another object of my invention is to provide an inflatable pad, placing it in a stall so that when a mare, who is about to foal, lies down a buzzer system will be activated so that she may be assisted.

Another object of my invention is to provide an alarm system which is adapted to detect reactive forces upon a mattress.

Still another object of my invention is to provide an alarm system which will be operable for an extended period of time even though a power failure occurs.

In general, my invention consists of an inflatable pad to which is secured a pressure switch maintained in a line connected to a source of power such as a battery a battery charger unit connected to said battery and an indicator light and buzzer system connected in the circuit, which buzzer and indicator light are activated upon the closing of the circuit when the pressure switch plunger is advanced.

Specifically, a mare who is standing upon the mattress displaces the weight when she lies down, thus causing the air within the mattress to force the piston in the pressure switch to move to close the circuit.

Other objects, in details of construction, will become apparent in the description and the accompanying drawing, wherein I show, in:

FIG. 1 is a view of the mattress with the pressure switch and circuitry controlling the alarm mechanisms.

Referring now to the numbered parts of the drawing, I show a mattress or paid 10 having means such as 11 for securing it to the floor of a building or stall.

A check valve is indicated at 12 and is secured to the inflatable portion of the mattress 10. This valve 12 is bled when a particular animal or object is upon the mattress in a predetermined position. In the case of a mare, this would be in a standing position.

3,533,095 Patented Oct. 6, 1970 Subsequently, when the mare lies down the displacement of her weight will cause air from the mattress to expand into connection 13 into the pressure switch mechanism 14, to cause a piston 15 to move to a position, intermediate terminals 16 and 17, to close a circuit to a buzzer or other alarm device indicated at 18, through leads 19 and 20. Leads '19 and 20 are connected to a battery 21. Similarly, the closing of the circuit between terminals 16 and 17 by positioning of piston 15, activates a light or other warning device 22, by closing of a circuit through leads 23 and 24, connected to terminals 25 and 26 of the battery, which terminals also connect leads 27 and 20.

I provide a manual switch 28, which is connected between terminal 17 and battery connection 25, which acts as a manual control device. A source of power enters through terminal 29 and may be such as is ordinarily supplied to a structure by a commercial utility, and is carried through lead 30 to a battery charger unit 31, which is connected by terminals 32 and 33 to a battery, preferably 12 volt, with connections 25 and 26.

In operation, changes in position of an animal upon the mattress causes a change in the pressure exerted upon the air, which change in the position of the animal, or other object, upon the mattress forces the air outwardly to activate the pressure switch to set forth an alarm system which I have constructed as a dual system, comprising both an auditory and a visual warning system, to advise the mare owner of the change in position of the mare so that she may be assisted.

My experience, particularly in the field of race horses, is that about six out of 40 foals are lost because there is no one to assist the mare at the time of delivery.

Having thus described In invention, what I claim is new and useful and desire to secure by United States Letters Patent is:

1. Au alarm system for use in the delivery of foals from a mare comprising an inflatable pad, a check valve connected to said inflatable pad, a diaphragm type pressure switch connected to said inflatable pad, means for moving said diaphragm type pressure switch by displacement of the weight of the mare upon said inflatable pad, a circuit, said circuit connected to a power source, an audio signal means connected within said circuit, a visual signal means connected within said circuit, whereby said circuit is closed when the air is displaced in said pad and said audio and visual signal means are activated.

2. The device in claim 1 wherein the power source is a 12 volt battery.

3. The device of claim 2 wherein the battery is electrically connected to a battery charger unit so that a failure of power will not disable the audio and visual signal systems.

References Cited UNITED STATES PATENTS 2,644,332 7/1953 Ulrich 200- X 2,998,817 9/1961 Armstrong 128-376 X 3,325,799 6/1967 Farris 340-272 X 3,439,358 4/1969 Salmons 11-1965 DONALD I YUSKO, Primary Examiner S. F. PARTRIDGE, Assistant Examiner US. Cl. X.R.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2644332 *Feb 24, 1951Jul 7, 1953Robinson Furniture CompanyWeight distribution testing apparatus
US2998817 *Aug 7, 1959Sep 5, 1961Gary Armstrong StebbinsInflatable massaging and cooling mattress
US3325799 *Jul 13, 1964Jun 13, 1967Edwia Greines CohenMattress alarm
US3439358 *Nov 30, 1965Apr 15, 1969George Washington LtdActivity detectors
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3727606 *Jun 12, 1970Apr 17, 1973Airco IncApnea detection device
US3751233 *Dec 2, 1970Aug 7, 1973Ecodyne CorpSalt indicator in a water conditioning device
US3777175 *Apr 11, 1972Dec 4, 1973Lucas Industries LtdSafety arrangements for road vehicles
US3791375 *Sep 29, 1971Feb 12, 1974E PfeifferDevice for sensing and warning of excessive ambulation force
US3853118 *Aug 29, 1973Dec 10, 1974Measurand SystSwelling detector
US4020482 *Apr 19, 1976Apr 26, 1977Feldl Erich JPatient monitor
US4055839 *Jun 23, 1976Oct 25, 1977Locust Farms, Inc.Foaling alarm
US4175263 *Apr 25, 1977Nov 20, 1979Triad & Associates, Inc.Technique for monitoring whether an individual is moving from a particular area
US4242672 *Nov 9, 1977Dec 30, 1980Gault Robert LPatient monitoring system and switch
US4381788 *Feb 27, 1981May 3, 1983Douglas David WMethod and apparatus for detecting apnea
US4534077 *Oct 3, 1983Aug 13, 1985Simmons Universal CorporationHospital bed having safety mechanism
US4635587 *Jun 6, 1985Jan 13, 1987Cowtronics, Inc.Method and apparatus for detecting standing heat in cattle
US4651677 *Jun 17, 1985Mar 24, 1987Wit Paulus A J DeApparatus for preventing shoats from being crushed to death in hog breeding operations and the use thereof as a device for indicating the start of the dam's birthing procedure
US4833457 *Nov 23, 1987May 23, 1989Graebe Jr William FImmersion control device and associated alarm system
US5140309 *Mar 12, 1991Aug 18, 1992Gaymar Industries, Inc.Bed signalling apparatus
US5184112 *Sep 11, 1991Feb 2, 1993Gaymar Industries, Inc.Bed patient position monitor
US5473313 *Nov 17, 1993Dec 5, 1995Graebe, Jr.; William F.Wheelchair seat cushion
US5592152 *Sep 25, 1995Jan 7, 1997Huang; Chien-TehIntruder detecting device to be installed in an integrated raised flooring system
US5598593 *Feb 10, 1995Feb 4, 1997Aqua-Leisure Industries, Inc.Inflatable air bed
US6067019 *Feb 27, 1998May 23, 2000Hill-Rom, Inc.Bed exit detection apparatus
US6133837 *Mar 5, 1999Oct 17, 2000Hill-Rom, Inc.Patient position system and method for a support surface
US6152077 *Apr 22, 1997Nov 28, 2000Bristow; Alan EBedding for livestock
US6165142 *Sep 21, 1998Dec 26, 2000Roho, Inc.Biomedical apparatus
US6532901Jun 6, 2001Mar 18, 2003Henry A. IsleyAnimal monitoring system
US6611783Jan 5, 2001Aug 26, 2003Nocwatch, Inc.Attitude indicator and activity monitoring device
US6935273Oct 9, 2003Aug 30, 2005Advance Comfort Technology LlcBedding for livestock
US7253366Dec 10, 2004Aug 7, 2007Hill-Rom Services, Inc.Exit alarm for a hospital bed triggered by individual load cell weight readings exceeding a predetermined threshold
US7437787Aug 3, 2007Oct 21, 2008Hill-Rom Services, Inc.Load-cell based hospital bed control
US7583199Feb 8, 2008Sep 1, 2009Graebe Jr William FAir cushion control system
US8042206 *Sep 11, 2009Oct 25, 2011Anodyne Medical Device, Inc.Bed exit alarm
US8598893May 17, 2010Dec 3, 2013Hill-Rom Industries SaPressure sensor comprising a capacitive cell and support device comprising said sensor
US8717181Jan 31, 2011May 6, 2014Hill-Rom Services, Inc.Bed exit alert silence with automatic re-enable
Classifications
U.S. Classification340/573.3, 5/707, 119/526, 119/518, 5/940, 5/904, 200/85.00R, 600/534, 5/905, 340/666, 600/588, 119/28.5
International ClassificationA61G7/043, A61D17/00
Cooperative ClassificationY10S5/904, Y10S5/905, Y10S5/94, A61D17/008
European ClassificationA61D17/00V