CA2194699A1 - Pressure sensitive switch - Google Patents

Pressure sensitive switch

Info

Publication number
CA2194699A1
CA2194699A1 CA002194699A CA2194699A CA2194699A1 CA 2194699 A1 CA2194699 A1 CA 2194699A1 CA 002194699 A CA002194699 A CA 002194699A CA 2194699 A CA2194699 A CA 2194699A CA 2194699 A1 CA2194699 A1 CA 2194699A1
Authority
CA
Canada
Prior art keywords
bands
cavity
conductive bands
members
traverses
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.)
Granted
Application number
CA002194699A
Other languages
French (fr)
Other versions
CA2194699C (en
Inventor
Paul F. Newham
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bed Check Corp
Original Assignee
Paul F. Newham
Bed-Check Corporation
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US08/281,431 external-priority patent/US5554835A/en
Priority claimed from US08/297,402 external-priority patent/US5600108A/en
Priority claimed from US08/311,418 external-priority patent/US5654694A/en
Priority claimed from US08/311,588 external-priority patent/US5633627A/en
Priority claimed from US08/321,244 external-priority patent/US5640145A/en
Application filed by Paul F. Newham, Bed-Check Corporation filed Critical Paul F. Newham
Publication of CA2194699A1 publication Critical patent/CA2194699A1/en
Application granted granted Critical
Publication of CA2194699C publication Critical patent/CA2194699C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/22—Status alarms responsive to presence or absence of persons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
    • H01H3/141—Cushion or mat switches

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Push-Button Switches (AREA)
  • Alarm Systems (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

A pressure sensitive switch has upper, middle and lower laminar elongated members, the middle member having an opening therethrough defining a cavity between the upper and lower members. A first array of substantially parallel, spaced-apart electrically conductive bands is fixed to a lower surface of the upper member and traverses the cavity. A second away of substantially parallel, spaced-apart electrically conductive bands is fixed to an upper surface of tire lower member and traverses the cavity. Selected lower member bands are discretely connected to an electrical input lead and other lower member bands are discretely connected to an electrical output lead.
An array of substantially parallel, spaced-apart dielectric bands narrower than the conductive bands is fixed to one of the lower and upper members and traverses the cavity between the arrays of conductive bands at alternate overlapping points thereof and partially separates the arrays of conductive bands from electrical contact therebetween at said alternate overlapping points. The upper and lower members are resiliently flexible to permit the overlapping points of the arrays of conductive bands to close into and open out of electrical contact therebetween upon exertion and removal, respectively, of a threshold external compressive force to the cavity.
CA002194699A 1994-07-27 1995-07-25 Pressure sensitive switch Expired - Fee Related CA2194699C (en)

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
US08/281,431 1994-07-27
US08/281,431 US5554835A (en) 1994-07-27 1994-07-27 Traversing conductor pressure sensitive switch
US08/297,402 US5600108A (en) 1994-08-29 1994-08-29 Docking module enclosure including connectors and power switching
US08/297,402 1994-08-29
US08/311,588 1994-09-23
US08/311,418 1994-09-23
US08/311,418 US5654694A (en) 1994-09-23 1994-09-23 Mobile battery powered patient bed and chair occupancy monitoring system
US08/311,588 US5633627A (en) 1994-09-23 1994-09-23 Hard-wired monitoring system for hospital bed or short term care patients
US08/321,244 US5640145A (en) 1994-10-11 1994-10-11 Remote controlled system for monitoring the occupancy of an infant bearing device
US08/321,244 1994-10-11
PCT/US1995/009367 WO1996003726A1 (en) 1994-07-27 1995-07-25 Pressure sensitive switch

Publications (2)

Publication Number Publication Date
CA2194699A1 true CA2194699A1 (en) 1996-02-08
CA2194699C CA2194699C (en) 2004-10-12

Family

ID=27540658

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002194699A Expired - Fee Related CA2194699C (en) 1994-07-27 1995-07-25 Pressure sensitive switch
CA002194698A Expired - Lifetime CA2194698C (en) 1994-07-27 1995-07-25 Monitor for load bearing device

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002194698A Expired - Lifetime CA2194698C (en) 1994-07-27 1995-07-25 Monitor for load bearing device

Country Status (4)

Country Link
AU (2) AU3145395A (en)
CA (2) CA2194699C (en)
GB (2) GB2305761B (en)
WO (2) WO1996003726A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0860803A3 (en) * 1997-02-25 2000-01-12 Lunan Products Limited Carer's monitoring system
GB2322464B (en) * 1997-02-25 2001-06-20 Lunan Products Ltd Carer's Monitoring System
US6784797B2 (en) 1998-02-26 2004-08-31 Bed-Check Corporation Microprocessor based bed patient monitor
US6111509A (en) 1998-02-26 2000-08-29 Bed-Check Corporation Microprocessor based bed patient monitor
JP7052813B2 (en) * 2020-02-21 2022-04-12 トヨタ自動車株式会社 Sleeping equipment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633237A (en) * 1984-07-11 1986-12-30 Kenneth A. Tucknott Patient bed alarm system
US4907845A (en) * 1988-09-16 1990-03-13 Salomon Sa Bed patient monitoring system
SE465695B (en) * 1989-02-22 1991-10-14 Arcus Vita Ab SINGLE ALARM, SPECIFICALLY PROVIDED TO BE USED FOR PATIENTS IN HOSPITALS AND LIKE, BEFORE MONITORING TO A PATIENT LEAVING HIS BED
EP0529926A1 (en) * 1991-08-27 1993-03-03 Ian E. Kibblewhite Remote sensor for monitoring departure from bed
US5276432A (en) * 1992-01-15 1994-01-04 Stryker Corporation Patient exit detection mechanism for hospital bed

Also Published As

Publication number Publication date
GB9701402D0 (en) 1997-03-12
WO1996003727A1 (en) 1996-02-08
AU3145395A (en) 1996-02-22
GB2305297A (en) 1997-04-02
GB2305297B (en) 1998-10-07
CA2194698A1 (en) 1996-02-08
WO1996003726A1 (en) 1996-02-08
GB2305761A (en) 1997-04-16
CA2194698C (en) 2005-05-24
GB9701632D0 (en) 1997-03-19
CA2194699C (en) 2004-10-12
AU3271395A (en) 1996-02-22
GB2305761B (en) 1998-07-08

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed