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GB2288085A - Safety lampholder for a bayonet bulb - Google Patents

Safety lampholder for a bayonet bulb

Info

Publication number
GB2288085A
GB2288085A GB9509498A GB9509498A GB2288085A GB 2288085 A GB2288085 A GB 2288085A GB 9509498 A GB9509498 A GB 9509498A GB 9509498 A GB9509498 A GB 9509498A GB 2288085 A GB2288085 A GB 2288085A
Authority
GB
United Kingdom
Prior art keywords
contacts
bulb
shutter means
housing
apertures
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
GB9509498A
Other versions
GB2288085B (en
GB9509498D0 (en
Inventor
Terence Hartley
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
Priority claimed from GB929224727A external-priority patent/GB9224727D0/en
Priority claimed from GB929226023A external-priority patent/GB9226023D0/en
Priority claimed from GB939300918A external-priority patent/GB9300918D0/en
Priority claimed from GB939311763A external-priority patent/GB9311763D0/en
Priority to GB9509498A priority Critical patent/GB2288085B/en
Application filed by Individual filed Critical Individual
Priority claimed from PCT/GB1993/002426 external-priority patent/WO1994013041A1/en
Publication of GB9509498D0 publication Critical patent/GB9509498D0/en
Publication of GB2288085A publication Critical patent/GB2288085A/en
Publication of GB2288085B publication Critical patent/GB2288085B/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/965—Dustproof, splashproof, drip-proof, waterproof, or flameproof holders
    • H01R33/9655—Dustproof, splashproof, drip-proof, waterproof, or flameproof holders for bayonet type coupling devices
    • H01R33/9656—Dustproof, splashproof, drip-proof, waterproof, or flameproof holders for bayonet type coupling devices neither pole becoming electrically connected until the coupling parts are substantially engaged
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/44—Means for preventing access to live contacts
    • H01R13/447—Shutter or cover plate
    • H01R13/453—Shutter or cover plate opened by engagement of counterpart
    • H01R13/4532—Rotating shutter

Landscapes

  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

A safety lampholder for a bayonet bulb comprises a hollow housing defining slots at one end thereof to receive bayonet pins of an inserted bulb. Bulb engaging contacts are located within the housing for electrical connection to a power source to supply electricity to an inserted bulb. Apertured shutter means are also located within the housing for selectively obstructing access to the contacts and arranged such that insertion of a bulb actuates relative movement of the contacts and shutter means between a first inoperative position in which the contacts are obstructed by the shutter means and a second operative position in which the contacts extend through the apertures in the shutter means to bear against an inserted bulb. This may be effected by driving rotation of the contacts or the shutter means. Interengageable surface formations are provided within the housing for actuating displacement of the contacts and arranged such that, upon rotation of an inserted bulb, the contacts are displaced inwardly of the housing and raised from their first position and lowered through apertures in the shutter means into their second position, and upon removal of a bulb the contacts are raised back through the apertures in the shutter means and lowered into their first position. <IMAGE>
GB9509498A 1992-11-25 1993-11-25 Safety lampholder for a bayonet bulb Expired - Lifetime GB2288085B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9509498A GB2288085B (en) 1992-11-25 1993-11-25 Safety lampholder for a bayonet bulb

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB929224727A GB9224727D0 (en) 1992-11-25 1992-11-25 Lampholder
GB929226023A GB9226023D0 (en) 1992-12-14 1992-12-14 Lampholder
GB939300918A GB9300918D0 (en) 1993-01-19 1993-01-19 Lamp holder
GB939311763A GB9311763D0 (en) 1993-06-08 1993-06-08 Lampholder
PCT/GB1993/002426 WO1994013041A1 (en) 1992-11-25 1993-11-25 Safety lampholder for a bayonet bulb
GB9509498A GB2288085B (en) 1992-11-25 1993-11-25 Safety lampholder for a bayonet bulb

Publications (3)

Publication Number Publication Date
GB9509498D0 GB9509498D0 (en) 1995-07-12
GB2288085A true GB2288085A (en) 1995-10-04
GB2288085B GB2288085B (en) 1996-07-03

Family

ID=27517160

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9509498A Expired - Lifetime GB2288085B (en) 1992-11-25 1993-11-25 Safety lampholder for a bayonet bulb

Country Status (1)

Country Link
GB (1) GB2288085B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2646749B1 (en) * 2010-12-03 2019-02-27 Ideal Industries Inc. Device for holding a source of light

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2651334A1 (en) * 1976-07-15 1978-01-19 Carlo Lucini Lamp holder with insulating bottom - has holes for contacts and cup rotatable between OFF and ON positions acting as switch
US4461523A (en) * 1981-12-01 1984-07-24 North American Philips Corporation Protective lampholder for bayonet base lamp
GB2253298A (en) * 1991-02-28 1992-09-02 Takamisawa Cybernetics Coin discrimination apparatus
GB2267607A (en) * 1992-05-01 1993-12-08 Doherty Patrick J Shuttered lampholder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2651334A1 (en) * 1976-07-15 1978-01-19 Carlo Lucini Lamp holder with insulating bottom - has holes for contacts and cup rotatable between OFF and ON positions acting as switch
US4461523A (en) * 1981-12-01 1984-07-24 North American Philips Corporation Protective lampholder for bayonet base lamp
GB2253298A (en) * 1991-02-28 1992-09-02 Takamisawa Cybernetics Coin discrimination apparatus
GB2267607A (en) * 1992-05-01 1993-12-08 Doherty Patrick J Shuttered lampholder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2646749B1 (en) * 2010-12-03 2019-02-27 Ideal Industries Inc. Device for holding a source of light

Also Published As

Publication number Publication date
GB2288085B (en) 1996-07-03
GB9509498D0 (en) 1995-07-12

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Legal Events

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

Expiry date: 20131124