GB8510615D0 - Pressure sensitive electrical device - Google Patents

Pressure sensitive electrical device

Info

Publication number
GB8510615D0
GB8510615D0 GB858510615A GB8510615A GB8510615D0 GB 8510615 D0 GB8510615 D0 GB 8510615D0 GB 858510615 A GB858510615 A GB 858510615A GB 8510615 A GB8510615 A GB 8510615A GB 8510615 D0 GB8510615 D0 GB 8510615D0
Authority
GB
United Kingdom
Prior art keywords
pressure sensitive
electrical device
sensitive electrical
pressure
sensitive
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.)
Withdrawn
Application number
GB858510615A
Other versions
GB2158291A (en
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.)
Nottingham County Council
Original Assignee
Nottingham County Council
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 GB848411280A external-priority patent/GB8411280D0/en
Application filed by Nottingham County Council filed Critical Nottingham County Council
Priority to GB08510615A priority Critical patent/GB2158291A/en
Publication of GB8510615D0 publication Critical patent/GB8510615D0/en
Publication of GB2158291A publication Critical patent/GB2158291A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/78—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites
    • H01H13/785—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by the contacts or the contact sites characterised by the material of the contacts, e.g. conductive polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/9618—Touch switches using a plurality of detectors, e.g. keyboard
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/22—Static coding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/03—Composite
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/032—Conductive polymer; Rubber
    • H01H2201/036—Variable resistance
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/02—Interspersed fingers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/022—Helical networks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/036—Form of contacts to solve particular problems
    • H01H2203/054—Form of contacts to solve particular problems for redundancy, e.g. several contact pairs in parallel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2209/00—Layers
    • H01H2209/068—Properties of the membrane
    • H01H2209/078—Conductive rubber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/004—Larger or different actuating area
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/014—Facilitation of operation; Human engineering handicapped
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/002—Legends replaceable; adaptable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/002—Casings sealed
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/002—Layer thickness
    • H01H2227/004—Membrane

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Push-Button Switches (AREA)
GB08510615A 1984-05-02 1985-04-26 Pressure sensitive electrical switch device Withdrawn GB2158291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08510615A GB2158291A (en) 1984-05-02 1985-04-26 Pressure sensitive electrical switch device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB848411280A GB8411280D0 (en) 1984-05-02 1984-05-02 Pressure sensitive electrical device
GB08510615A GB2158291A (en) 1984-05-02 1985-04-26 Pressure sensitive electrical switch device

Publications (2)

Publication Number Publication Date
GB8510615D0 true GB8510615D0 (en) 1985-06-05
GB2158291A GB2158291A (en) 1985-11-06

Family

ID=26287686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08510615A Withdrawn GB2158291A (en) 1984-05-02 1985-04-26 Pressure sensitive electrical switch device

Country Status (1)

Country Link
GB (1) GB2158291A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI82332C (en) * 1986-02-06 1991-02-11 Kone Oy Micromechanical call push button station
IL101959A0 (en) * 1991-06-03 1992-12-30 Menashe Yehezkel Electric control signal-generating assembly
DE4427537A1 (en) * 1994-08-04 1996-02-29 Saar Gummiwerk Gmbh Flexible hollow chamber profile as an accommodation, protection and actuation profile for force sensing restistors · T ·· M ·

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1521474A (en) * 1975-10-31 1978-08-16 Parmeko Ltd Pressure operable electrical switches
US4074642A (en) * 1976-07-27 1978-02-21 The Singer Company Sewing machine with programmable memory
US4297907A (en) * 1979-06-01 1981-11-03 Kaman Aerospace Corporation Torque splitting gear drive
DE2949335A1 (en) * 1979-12-07 1981-06-11 Bucher-Guyer AG Maschinenfabrik, Niederweningen, Zürich AUTHENTIC LIFTING DEVICE FOR AN AGRICULTURAL DEVICE, IN PARTICULAR A MACHINE
GB2077508A (en) * 1980-05-09 1981-12-16 Weatherley Richard Variable resistance pressure- sensitive laminate

Also Published As

Publication number Publication date
GB2158291A (en) 1985-11-06

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)