# US 5,707,140 A · Structure of lamp shade for halogen lamps

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- Number: US 5,707,140 A
- Document ID: US5707140A
- Status: Granted
- Kind: A
- Application number: 08/412,004
- Filed: 1995-03-28
- Granted: 1998-01-13
- Earliest claimed: 1995-03-28
- Inventors: Wen-Tsung Chen
- Web page: https://patentgrep.com/patent/US5707140A

## CPC

- F21V 19/006: {of point-like light sources, e.g. incandescent or halogen lamps, with screw-threaded or bayonet base (of sources having contact pins, wires or blades F21V19/0005; of LEDs or sources mounted on printed-circuit board F21V19/001)}
- F21V 17/06: the fastening being onto or by the lampholder
- F21V 29/15: Thermal insulation
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR

## Abstract

A lamp shade includes a shade body having a circular mounting hole, a mounting socket fastened to the circular mounting hole by a lock ring to hold a halogen lamp, and a heat insulation shield fastened to the mounting socket and covered around the halogen lamp, wherein: the mounting socket comprises an annular head stopped outside the shade body, a socket body longitudinally extended from the annular head and inserted into the circular mounting hole, two symmetrical mounting notches on the annular head for mounting the halogen lamp, an outer thread around the socket body, a first screw hole on the annular head into which a tightening up screw is threaded to hold down the halogen lamp, and a second screw hole on the socket body into which a tie screw is threaded to hold the heat insulation shield in place; the lock ring has an inner thread threaded onto the outer thread on the socket body of the mounting socket; the heat insulation shield is sleeved onto the socket body of the mounting socket, having a screw hole fastened to the second screw hole by the tie screw.

## Claims

### Claim 1

A halogen lamp shade comprising
a shade body defining a circular mounting hole on its surface,
a mounting socket mounted on said shade, said socket comprising an annular head and a hollow socket body extending from said annular head into said circular mounting hole, said annular head disposed on the outer surface of said shade body,
said socket body having a threaded portion,
said annular head having a first screw opening therein,
said hollow socket body having a second screw opening therein,
a locking ring threadingly engaging said socket body to hold said mounting socket onto said lamp shade,
a halogen lamp holder disposed within said socket body and said annular head, said lamp holder having an annular groove on that portion of its surface extending into said annular head,
a screw passing through said first screw opening in said annular head and into said annular groove to fasten said lamp holder to said mounting socket,
a hollow heat insulation shield in contact with one end of said socket body, said heat insulation shield having a screw opening therein aligned with said second screw opening on said socket body, and a screw extending through said aligned openings to fasten said heat insulation shield to said socket body.