Timothy J Mcgill

US Patent:

20080054780, Mar 6, 2008

Filed:

Aug 31, 2006

Appl. No.:

11/515455

Inventors:

Jeffrey L. Middleton - Dover PA, US
Jay Yeaple - York PA, US
Neil Bupp - Manchester PA, US
Donald Burger - York PA, US
Tad Smith - Manchester PA, US
Timothy McGill - Dover PA, US

International Classification:

H01J 5/48
H01J 5/50

US Classification:

31331801, 31331807, 31331809

Abstract:

A lamp base (), for example, for a tungsten-halogen lamp, comprises three electrically conductive parts or elements and a glass insulator. Specifically, the lamp base () comprises a first metallic outer part (), a glass inner part (), an electrically conducting eyelet (), and an upper electrically conductive part (), all symmetrically arrayed about a longitudinal axis (). The glass insulator () bonds all of the electrically conductive parts, () and (). The metallic outer part () is preferably threaded for insertion into a socket and has a major, internal diameter D1. The glass inner part () has a primary, external diameter that is equal to the major internal diameter D1; i.e., the external diameter of the glass inner part () is contiguous with the internal diameter of the metallic outer part (). Further, the internal glass part () has an opening () therein and the opening () has a secondary diameter D In an aspect of the invention, D/D is greater than 0.5 and less than 0.6 and, in the preferred embodiment of the invention, the ratio D/D is 0.58.

Address:

8212 S Washtenaw Ave, Chicago, IL 60652

VIN:

1GNFC13C67J395584

Make:

CHEVROLET

Model:

TAHOE

Year:

2007