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GB2201063B - Telephone apparatus - Google Patents

Telephone apparatus

Info

Publication number
GB2201063B
GB2201063B GB8801308A GB8801308A GB2201063B GB 2201063 B GB2201063 B GB 2201063B GB 8801308 A GB8801308 A GB 8801308A GB 8801308 A GB8801308 A GB 8801308A GB 2201063 B GB2201063 B GB 2201063B
Authority
GB
United Kingdom
Prior art keywords
telephone apparatus
telephone
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.)
Expired - Lifetime
Application number
GB8801308A
Other versions
GB2201063A (en
GB8801308D0 (en
Inventor
Robert Andrew Bissell
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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
Application filed by British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of GB8801308D0 publication Critical patent/GB8801308D0/en
Publication of GB2201063A publication Critical patent/GB2201063A/en
Application granted granted Critical
Publication of GB2201063B publication Critical patent/GB2201063B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/04—Supports for telephone transmitters or receivers
    • H04M1/06—Hooks; Cradles
    • H04M1/08—Hooks; Cradles associated with switches operated by the weight of the receiver or hand-set
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2201/00—Contacts
    • H01H2201/022—Material
    • H01H2201/032—Conductive polymer; Rubber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/022—Telephone handset

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Push-Button Switches (AREA)
GB8801308A 1987-01-29 1988-01-21 Telephone apparatus Expired - Lifetime GB2201063B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878701995A GB8701995D0 (en) 1987-01-29 1987-01-29 Telephone apparatus

Publications (3)

Publication Number Publication Date
GB8801308D0 GB8801308D0 (en) 1988-02-17
GB2201063A GB2201063A (en) 1988-08-17
GB2201063B true GB2201063B (en) 1990-02-28

Family

ID=10611414

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878701995A Pending GB8701995D0 (en) 1987-01-29 1987-01-29 Telephone apparatus
GB8801308A Expired - Lifetime GB2201063B (en) 1987-01-29 1988-01-21 Telephone apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878701995A Pending GB8701995D0 (en) 1987-01-29 1987-01-29 Telephone apparatus

Country Status (1)

Country Link
GB (2) GB8701995D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2650432A1 (en) * 1989-07-27 1991-02-01 Eaton Controls Sa Flexible electrical contact element and application of this flexible element
FR2654276A1 (en) * 1989-11-03 1991-05-10 Sextant Avionique DEVICE FOR DETECTING THE LOCKING OF A TELEPHONE HANDSET.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2071914A (en) * 1980-02-01 1981-09-23 Kromschroeder Ag G An elastic compressible electric contact material and a contact utilising such material
GB2092382A (en) * 1981-01-29 1982-08-11 Standard Telephones Cables Ltd Contact dimple pad

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2071914A (en) * 1980-02-01 1981-09-23 Kromschroeder Ag G An elastic compressible electric contact material and a contact utilising such material
GB2092382A (en) * 1981-01-29 1982-08-11 Standard Telephones Cables Ltd Contact dimple pad

Also Published As

Publication number Publication date
GB8701995D0 (en) 1987-03-04
GB2201063A (en) 1988-08-17
GB8801308D0 (en) 1988-02-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee