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US 4,227,760 AGranted
Lamp socket structure
AssigneeInternational Telephone and Telegraph Corporation
InventorRoman J. Witek, Jr.
Life of this patent
Estimating the term…
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AssigneeInternational Telephone and Telegraph Corporation
InventorRoman J. Witek, Jr.
Estimating the term…
A lamp socket adapted to receive a bayonet base lamp bulb for illumination uses on an automotive vehicle. The socket is essentially cup-shaped and of one-piece plastic construction. The bulb contacting terminal members and grounding ring are all adapted to be inserted from the bulb end of the socket. The terminal members snap into designated slots in the bulb receiving wall of the socket. The grounding ring is a unitary, formed member with terminals at both opposed ends. The grounding ring forms the wall into which the bulb base is inserted. With the terminal members and grounding ring in place, terminals are provided for the engagement with conductors of a printed circuit board. The terminals have spring contactors spaced in an annulus insulated and spaced from the bulb. The bulb imposes a locking pressure on the bulb terminals by pushing the terminals further into the assembly.
A lamp socket comprising a cup-shaped socket open at one end thereof, a tubular wall extending from said one end to form a cavity in said socket for receiving a bayonet-type bulb, an annular platform extending outwardly from said wall, said platform terminating in an upturned rim flange, a conductive ring within said cavity adjacent the wall thereof for conductive grounding contact with a bulb ferrule, said ring including spaced terminal portions arrayed in said annular platform, spaced openings in said tubular wall in communication with said platform for receiving respective bulb contacting members, each said last-mentioned member including an inwardly directed portion for compressively engaging a lamp contact, an intermediate contact member portion extending through the wall opening to a terminal portion in said platform, said terminal portions being spaced midway between the terminal portions of said ring, each said terminal portion including a spring contact or lanced therefrom angled above the rim flange equally spaced about said platform.
A lamp socket adapted to receive a bayonet base bulb for use in an automotive vehicle, said socket comprising a lamp cavity defined by a tubular wall, a grounding ring mounted within said wall, said ring including a conductive tubular body for receiving a bulb, opposed channels extending in an axial direction along the tubular body for receiving bayonet prongs of a bulb, a locking slot in communication with one of said channels for locking the bulb therein with the body of the ring in conductive engagement with the bayonet prong of the bulb, said ring including terminal members directed radially from said grounding ring at diametrically opposed side positions of the ring body externally of said socket wall, said terminal members extending in a common plane and including lanced contactors stressed angularly from the terminal plane for completing grounding connections on both side positions of the socket.
Dependencies are inferred from the claim text.