US 5,707,140 AGranted

Structure of lamp shade for halogen lamps

OwnerWen-Tsung Cheninventor

Life of this patent

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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.

Claims1

Dependent claims

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.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/412,004Filed 28 Mar 1995
Granted: 13 Jan 1998
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

F21V 19/006
Fastening of light sources or lamp holders: of point-like light sources, e.g. incandescent or halogen lamps, with screw-threaded or bayonet base
F21V 17/06
Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages: the…
F21V 29/15
Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems: thermal insulation
F21V
Functional features or details of lighting devices or systems thereof

Family

No related US applications are recorded in the indexed filing history.

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