# US 5,707,138 A · Light bulb holder having draining passageways

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- Number: US 5,707,138 A
- Document ID: US5707138A
- Status: Granted
- Kind: A
- Application number: 08/773,531
- Filed: 1996-12-23
- Granted: 1998-01-13
- Earliest claimed: 1996-12-23
- Inventors: Wun Fang Pan
- Web page: https://patentgrep.com/patent/US5707138A

## CPC

- H01R 33/09: for baseless lamp bulb
- F21S 4/10: with light sources attached to loose electric cables, e.g. Christmas tree lights
- F21V 19/0005: {of sources having contact pins, wires or blades, e.g. pinch sealed lamp (F21V19/001 takes precedence)}
- Y10S 362/806: Ornamental or decorative
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A light bulb holder having draining passageways includes a base connecting with a cap having engaged with a light bulb wherein two channels are formed on the sides of the cap and two grooves are provided in related inner sides of the base. After a connection between the cap and the base, two channels and two grooves become two draining passageways through the light bulb holder that provides infiltrating water pass by very soon and prevent from an electrical short circuit or eroding.

## Claims

### Claim 1

A light bulb holder having draining passageways including a light bulb having its one end inserting into a cap and the cap as well as the light bulb being put into an inner space of a base; characterized in that two draining channels are formed on two sides of the cap and a slot is formed on an bottom of the cap; two draining grooves are provided in related inner sides of the base and a plate is provided in the base, and when the cap with the bulb is connected to the base, the two draining channels and the two draining grooves are aligned to become two passageways through the light bulb holder for draining infiltrating water quickly and an end of the plate is engaged within the slot that divides the inner space of the base into two separated parts for avoiding infiltrating water contacting different electrical poles on conductors and conducting wires at the same time and prevent an electrical leakage or short circuit.