William E Sharp

US Patent:

51095947, May 5, 1992

Filed:

Mar 18, 1991

Appl. No.:

7/671160

Inventors:

William F. Sharp - Louisville CO
Prem R. Hingorany - Broomfield CO
Howard W. Mansell - Englewood CO

Assignee:

Explosive Fabricators, Inc. - Louisville CO

International Classification:

H01P 1100

US Classification:

29600

Abstract:

In accordance with this invention, hermetically sealed transition joint for use with a microwave package which has a receptacle including a side wall made of a first weldable material with a feed-through opening therein. The transition joint includes a first layer of a first material sized to extend across the feed-through opening and weldable to the side wall to form a hermetic seal. A second layer of a second material is explosively bonded to the first layer and sized to match and be received within the feed-through opening. A connector opening extends through the first and second layers. A pin connector unit made of the second material and having electrical pins extending therethrough is sized to fit within the connector opening and is welded to the second layer to form a hermetic seal. The first layer may be aluminum or aluminum alloy and the second layer can be any one of Kovar, cold rolled steel, stainless steel or iron-nickel alloy. Conveniently, the welding is done by laser welding.

US Patent:

50410199, Aug 20, 1991

Filed:

Nov 1, 1990

Appl. No.:

7/607563

Inventors:

William F. Sharp - Louisville CO
Prem R. Hingorany - Broomfield CO
Howard W. Mansell - Englewood CO

Assignee:

Explosive Fabricators, Inc. - Louisville CO

International Classification:

H01B 1726

US Classification:

439559

Abstract:

In accordance with this invention, a hermetically sealed transition joint for use with a microwave package which has a receptacle including a side wall made of a first weldable material with a feed-through opening therein. The transition joint includes a first layer of a first material sized to extend across the feed-through opening and weldable to the side wall to form a hermetic seal. A second layer of a second material is explosively bonded to the first layer and sized to match and be received within the feed-through opening. A connector opening extends through the first and second layers. A pin connector unit made of the second material and having electrical pins extending therethrough is sized to fit within the connector opening and is welded to the second layer to form a hermetic seal. The first layer may be aluminum or aluminum alloy and the second layer can be any one of Kovar, cold rolled steel, stainless steel or iron-nickel alloy. Conveniently, the welding is done by laser welding.

US Patent:

46003320, Jul 15, 1986

Filed:

Jan 11, 1985

Appl. No.:

6/690605

Inventors:

William F. Sharp - Louisville CO
John G. Banker - Boulder CO
Roy Hardwick - Louisville CO

Assignee:

Explosive Fabricators, Inc. - Louisville CO

International Classification:

F16B 3500

US Classification:

403179

Abstract:

A strong transition joint between an aluminum plate and a steel object includes an aluminum sleeve adapted to be fusion-welded to the aluminum plate and a titanium core explosion-welded to the aluminum sleeve in the center thereof with the titanium core having an internally threaded hole adapted to receive a steel bolt so that the occurance and economic consequences of corrosion are minimized.