GB2217933B - Time lag switching device - Google Patents

Time lag switching device

Info

Publication number
GB2217933B
GB2217933B GB8908797A GB8908797A GB2217933B GB 2217933 B GB2217933 B GB 2217933B GB 8908797 A GB8908797 A GB 8908797A GB 8908797 A GB8908797 A GB 8908797A GB 2217933 B GB2217933 B GB 2217933B
Authority
GB
United Kingdom
Prior art keywords
switching device
time lag
lag switching
time
switching
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
GB8908797A
Other versions
GB2217933A (en
GB8908797D0 (en
Inventor
Harry Mans
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB8908797D0 publication Critical patent/GB8908797D0/en
Publication of GB2217933A publication Critical patent/GB2217933A/en
Application granted granted Critical
Publication of GB2217933B publication Critical patent/GB2217933B/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
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/18—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for introducing delay in the operation of the relay
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28—Modifications for introducing a time delay before switching
GB8908797A 1988-04-20 1989-04-19 Time lag switching device Expired - Lifetime GB2217933B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888809288A GB8809288D0 (en) 1988-04-20 1988-04-20 Time lag switching device

Publications (3)

Publication Number Publication Date
GB8908797D0 GB8908797D0 (en) 1989-06-07
GB2217933A GB2217933A (en) 1989-11-01
GB2217933B true GB2217933B (en) 1992-07-01

Family

ID=10635491

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888809288A Pending GB8809288D0 (en) 1988-04-20 1988-04-20 Time lag switching device
GB8908797A Expired - Lifetime GB2217933B (en) 1988-04-20 1989-04-19 Time lag switching device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888809288A Pending GB8809288D0 (en) 1988-04-20 1988-04-20 Time lag switching device

Country Status (1)

Country Link
GB (2) GB8809288D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE61980B1 (en) * 1989-01-31 1994-12-14 Tech Developments Limited A timer unit
GB2396065B (en) * 2002-11-01 2005-12-28 Stephen John Foxwell Lighting control

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB989016A (en) * 1961-04-04 1965-04-14 G V Controls Inc Improvements in or relating to electrical control systems
GB1101891A (en) * 1964-03-17 1968-01-31 Mang Ets Gerard Improvements in or relating to automatic electronic time-switches
US3582715A (en) * 1969-01-21 1971-06-01 Plessey Airborne Corp Multiple-mode solid-state time delay apparatus including charge-monitoring timing circuits
US3582716A (en) * 1968-08-08 1971-06-01 Plessey Airborne Corp Apparatus for providing time delay upon total deenergization
EP0002648A1 (en) * 1977-12-16 1979-06-27 LGZ LANDIS & GYR ZUG AG Stairway light time switch
EP0101147A2 (en) * 1982-08-11 1984-02-22 Tai-Her Yang Improvements in and relating to lighting apparatus
EP0285427A2 (en) * 1987-04-02 1988-10-05 Anderson Research And Development Limited Switching apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB989016A (en) * 1961-04-04 1965-04-14 G V Controls Inc Improvements in or relating to electrical control systems
GB1101891A (en) * 1964-03-17 1968-01-31 Mang Ets Gerard Improvements in or relating to automatic electronic time-switches
US3582716A (en) * 1968-08-08 1971-06-01 Plessey Airborne Corp Apparatus for providing time delay upon total deenergization
US3582715A (en) * 1969-01-21 1971-06-01 Plessey Airborne Corp Multiple-mode solid-state time delay apparatus including charge-monitoring timing circuits
EP0002648A1 (en) * 1977-12-16 1979-06-27 LGZ LANDIS & GYR ZUG AG Stairway light time switch
EP0101147A2 (en) * 1982-08-11 1984-02-22 Tai-Her Yang Improvements in and relating to lighting apparatus
EP0285427A2 (en) * 1987-04-02 1988-10-05 Anderson Research And Development Limited Switching apparatus

Also Published As

Publication number Publication date
GB8809288D0 (en) 1988-05-25
GB2217933A (en) 1989-11-01
GB8908797D0 (en) 1989-06-07

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20090418