Electrical adapter

Claim 2

An adapter for electrically connecting an electric light socket having an internal threaded electrically conductive portion to a light bulb having an electrically conductive external sleeve provided with external threads, the adapter comprising: a tubular member having a threaded first end section adapted to mate with the threaded electrically conductive portion of the socket and a second end section having an internal threaded wall forming a cavity for accommodating the threaded sleeve of the light bulb, first electrical conductor means extended between the first end section and engageable with a portion of the socket and the second end sections and the socket and sleeve of the bulb, said first section having an externally open groove, said second section having an internally open groove, said first electrical conductor means comprising an elongated electrically conductive member located in said first and second grooves, and second electrically conductive means insulatively mounted on the tubular member adapted to contact the center of the base of the bulb and the center of the socket, and means for locking adapter in a socket, said means for locking the adapter in the socket comprising a band spring located within the tubular member, and locking finger means cooperating with the spring whereby the spring biases the finger locking means to a locking position, said first end section of the tubular member having a hole for accommodating said locking finger means.

Claim 3

The adapter of claim 1 wherein: the first end section has right hand threads and the internal threaded wall has left hand threads.

Claim 4

The adapter of claim 1 wherein: the elongated electrically conductive member has a reverse turned end located in a pocket in the tubular member.

Claim 5

The adapter of claim 1 wherein: the elongated member has means extended through a hole in the tubular member to hold the elongated member in the grooves.

Claim 6

The adapter of claim 1 wherein: the spring has an inwardly projected portion adapted to be engaged by releasing tool means operable to move the spring and retract the locking finger means to a non-locking position.

Claim 7

An adapter for electrically connecting an electric light socket having an internal threaded electrically conductive portion to a light bulb having an electrically conductive external sleeve provided with external threads, the adapter comprising: an electrically insulative tubular member having a threaded first end section adapted to mate with a threaded electrically conductive portion of a socket and a second end section having an internal threaded wall forming a cavity for accommodating the threaded sleeve of a light bulb, the end sections disposed about a common central axis, an elongated electrically conductive member extended between the first end section and the second end sections and engageable with the threaded sleeve and the threaded portion of the socket, electrically conductive means insulatively mounted on the tubular member adapted to contact the center of the base of the bulb and the center of the socket, the socket and first end section when threadably engaged, engaging one end portion of the electrically conductive member to bias an opposing end portion of said member toward contact with the threaded sleeve when said sleeve is threadably engaged with the second end section, and means for locking the adapter in a socket separated from the electrically conductive member and conductive means, said means for locking the adapter in a socket comprising a band spring located within the tubular member, and locking means cooperating with the spring whereby the spring biases the locking means to a locking position, said first end section of the tubular member having a hole for accommodating said locking means.

Claim 8

An adapter for electrically connecting an electric light socket having an internal threaded electrically conductive portion to a light bulb having an electrically conductive external sleeve provided with external threads, the adapter comprising: an electrically insulative tubular member having a threaded first end section adapted to mate with a threaded electrically conductive portion of a socket and a second end section having an internal threaded wall forming a cavity for accommodating the threaded sleeve of a light bulb, the end sections disposed about a common central axis, an elongated electrically conductive member extended between the first end section and the second end sections and engageable with the threaded sleeve and the threaded portion of the socket, electrically conductive means insulatively mounted on the tubular member adapted to contact the center of the base of the bulb and the center of the socket, the socket and first end section when threadably engaged, engaging one end portion of the electrically conductive member to bias an opposing end portion of said member toward contact with the threaded sleeve when said sleeve is threadably engaged with the second end section, and means for locking the adapter in a socket separated from the electrically conductive member and conductive means, said means for locking the adapter in a socket comprising a band spring located within the tubular member, and locking means cooperating with the spring whereby the spring biases the locking means to a locking position, said first end section of the tubular member having a hole for accommodating said locking means.

Claim 9

The adapter of claim 6 including: an externally open groove in the first end section and an internally open groove in the second end section, with said elongated electrically conductive member located in the first and second grooves.

Claim 10

The adapter of claim 7 wherein: the grooves are parallel to the central axis and substantially linearly aligned.

Claim 11

The adapter of claim 6 wherein: the tubular member is unitary and electrically insulative.

Claim 12

The adapter of claim 6 wherein: the first end section has right hand threads and the internal threaded wall has left hand threads.

Claim 13

The adapter of claim 6 wherein: the electrically conductive member is a resilient metal strip.