Signal activating device for a nurse call system

• US 5,075,523 A
• Filed: 09/04/1990
• Issued: 12/24/1991
• Est. Priority Date: 09/04/1990
• Status: Expired due to Fees

• Current Assignee: Ralph W. Ford
• Original Assignee: Ralph W. Ford
• Inventors: Ford, Ralph W.
• Primary Examiner(s): CUSICK, ERNEST
• Application Number:
  US07/577,327
• Time in Patent Office: 476 Days
• Field of Search: 200/330, 200/331, 200/333, 200/338, 200/341, 200/DIG. 6, 200/DIG. 35, 200/518, 200/17, 200/294, 200/296, 200/310, 200/317, 200/85 R, 200/DIG. 2
• US Class Current: 200/330
• CPC Class Codes: A61G 12/00 Accommodation for nursing, e.g. in hospitals, not covered by groups A61G1/00 - A61G11/00, e.g. trolleys for transport of medicaments or food service or tea-tables, trolleys or wagons A47B31/00; Prescription lists
• CPC Class Codes: A61G 2203/70 with special adaptations, e.g. for safety or comfort
• CPC Class Codes: E05Y 2600/40 Mounting location; Visibility of the elements
• CPC Class Codes: H01H 3/142 of the elongated strip type
• CPC Class Codes: Y10S 200/02 Body attached switches
• CPC Class Codes: Y10S 200/35 Weight operated tread/treadless switch

Abstract

A signal activating device for activating a nurse call system as commonly used in hospitals and nursing homes to summon the attending personnel for assistance, wherein an elongate bar having circuitry electrically interconnected to the call system is supported on the railing structure of a bed or chair so as to extend transversely thereacross in a readily accessible location over a midportion of the body of a person in the bed or chair. A hollow tube is fitted over the bar in engaging, supported relation on a number of electric switches mounted at spaced intervals along the bar'"'"'s length such that pressure applied by the person to any location along the upper portion of the tube serves to operate at least one electric switch on the bar, thereby activating the nurse call system.

Claims

1. For use in activating a nurse call system as commonly found in hospitals and nursing homes, a signal activating device comprising:

an elongate bar having a generally U-shaped configuration including a base portion and a pair of oppositely disposed downwardly extending sides, said base portion including a top surface and an underside surface extending between two opposite ends thereof,

securing means attached to said opposite ends for securing said bar to two spaced apart supporting surfaces so as to extend transversely therebetween,

switch means mounted on said bar, said switch means being operable between a normally open circuit position and a closed circuit position,

a lead conductor cable electrically interconnected to said switch means and extending from said bar,

switch operating means including a hollow tube fitted about an exterior of said bar extending substantially along a length thereof, and including an inner surface disposed in contact with said switch means, said hollow tube being structured and disposed to facilitate operation of said switch means between said open circuit position and said closed circuit position upon applying pressure thereto, and

whereby said closed circuit condition causes a current flow to be directed to the nurse call system for activation thereof.

2. The device as in claim 1 wherein said switch means includes a plurality of electric switches mounted in spaced relation along a length of said base portion of said bar.

3. The device as in claim 2 wherein said plurality of electric switches each include a depressible button adapted to be operated by depressing between a raised position defining said open circuit position and a depressed position defining said closed circuit position.

4. The device as in claim 3 wherein each of said plurality of electric switches further include a switch housing mounted to said underside surface of said bar with said depressible button extending therefrom and through said base portion so as to extend upwardly from said top surface of said bar.

5. The device as in claim 4 wherein each of said plurality of electric switches are electrically connected in parallel to a pair of conductors extending from said lead conductor cable so that operation of one or more of said electric switches by depressing to said closed circuit position serves to direct said current flow to the nurse call system for activation thereof.

6. The device as in claim 5 wherein said switch operating means comprises an elongate hollow tube fitted about an exterior of said bar substantially along the length thereof, with said depressible button of each of said plurality of electric switches supportably engaging an inner surface of said hollow tube such that pressure applied to an outer exterior surface of said tube causes said depressible button of at least one of said electric switches to be depressed to said closed circuit position thereby activating the nurse call system.

7. The device as in claim 6 wherein a jack is attached to a free distal end of said lead conductor cable to facilitate electrical interconnection with an electrical outlet of the nurse call system.

8. The device as in claim 7 wherein said securing means comprises a pair of substantially hook shaped brackets including a first hook bracket and a second hook bracket each one being attached to one of said opposite ends of said bar and being structured and configured for supporting engagement with a railing structure of a bed so as to support said bar transversely across the bed in a readily accessible position and orientation.

9. The device as in claim 8 further comprising light indicating means mounted to said bar to indicate activation of the nurse call system.

10. The device as in claim 9 wherein said light indicating means includes a light source mounted on said bar.

11. The device as in claim 10 wherein at least one of said electric switches is electrically interconnected to said light source so that movement of the depressible button of said electric switch to a depressed position causes the flow of current to be directed to said light source for illumination thereof.

12. For use in activating a nurse call system as commonly found in hospitals and nursing homes, a signal activating device comprising:

an elongate bar having a top surface and an underside surface extending between two opposite sides,

securing means attached to said opposite ends for securing said bar to two spaced apart supporting surfaces so as to extend transversely therebetween,

a plurality of switches mounted in spaced relation along a length of said bar, each of said plurality of switches being electrically interconnected with a pair of conductors and being operable between a normally open circuit position and a closed circuit position wherein operation of at least one of said switches serves to complete an electric circuit between the pair of conductors,

a jack attached to free distal ends of said pair of conductors,

a hollow tube fitted about an exterior of said bar extending substantially along the length thereof and including an inner surface disposed in contact with said plurality of switches, said hollow tube being structured and disposed to facilitate operation of at least one of said switches between said open circuit position and said closed circuit position upon applying pressure thereto, and

whereby operation of at least one of said switches to said closed circuit position serves to activate the nurse call system.