John J Mcdevitt

US Patent:

49292544, May 29, 1990

Filed:

Jul 13, 1989

Appl. No.:

7/379590

Inventors:

Cornelis A. Kooiman - Rhoon, NL
John J. McDevitt - Bow NH

Assignee:

SET Technology B.V. - Goes

International Classification:

C10J 326
C10J 342

US Classification:

48 76

Abstract:

A gasifier system for obtaining relatively clean combustible gaseous products from solid fuel materials, such as processed sewage sludge, comprises a gasifier reactor which communicates a raw, combustible gas to a cyclone separator, a gas scrubbing device and a gas cooling and drying device. Gas which exits the system is relatively clean and may be used in a prime mover for the production of energy. The gasifier reactor of the present invention is a down-draft fixed bed gasifier. The gasifier is constructed of several interconnected modular units. Moreover, the gasifier is constructed so as to efficiently gasify fuel materials while maintaining excellent horizontal temperature control.

US Patent:

51998890, Apr 6, 1993

Filed:

Nov 12, 1991

Appl. No.:

7/790464

Inventors:

John E. McDevitt - Cumberland RI

Assignee:

Jem Tech - Cumberland RI

International Classification:

H01R 2372

US Classification:

439 66

Abstract:

An interconnection system for connecting leadless grid arrays of integrated circuits with leadless grid arrays of printed circuit boards. The system includes an insulative socket, flexible conductive elements and a compression lid. The insulative socket is temporarily affixed to the printed circuit board as the conductive elements, retained on a flexible carrier, are inserted into cavities of the socket. The cavities of the socket have inside dimensions greater than the outside dimensions of the conductive elements. After the conductive elements have been affixed to the printed circuit board, the flexible carrier is taken off of the elements and the insulative socket may be removed for visual inspection of the connection between the contact pads of the circuit board and the conductive elements. The integrated circuit is placed on top of the conductive elements such that contact pads of the circuit are properly aligned with appropriate contact pads of the printed circuit board. The compression lid is placed over the integrated circuit and affixed to the printed circuit board so as to secure the contact pads of the integrated circuit to the conductive elements.

US Patent:

50282417, Jul 2, 1991

Filed:

May 11, 1990

Appl. No.:

7/522539

Inventors:

Cornelis A. Kooiman - Rhoon, NL
John J. McDevitt - Bow NH

Assignee:

SET Technology B.V. - Goes

International Classification:

C10J 384

US Classification:

48 87

Abstract:

A gasifier system for obtaining relatively clean combustible gaseous products from solid fuel materials, such as processed sewage sludge, comprises a gasifier reactor which communicates a raw, combustible gas to a cyclone separator, a gas scrubbing device and a gas cooling and drying device. Gas which exits the system is relatively clean and may be used in a prime mover for the production of energy. The gasifier reactor of the present invention is a down-draft fixed bed gasifier. The gasifier is constructed of several interconnected modular units. Moreover, the gasifier is constructed so as to efficiently gasify fuel materials while maintaining excellent horizontal temperature control.

US Patent:

45832870, Apr 22, 1986

Filed:

Jul 12, 1985

Appl. No.:

6/754530

Inventors:

John E. McDevitt - Cumberland RI
Ronald E. Senor - North Attleboro MA

Assignee:

Augat Inc. - Mansfield MA

International Classification:

H05K 1304

US Classification:

29741

Abstract:

A dual function tool for inserting and extracting integrated circuits and other circuits and composites of dual-in-line or quad configurations respectively into and from circuit boards is disclosed. It possesses vertically adjustable opposing side plates having spaced inwardly-pointing tines at their lower ends for grasping an integrated circuit, and also possesses a mechanism for raising and lowering these plates, and a push block and associated mechanism for simultaneously releasing an integrated circuit and forcing it into a circuit board socket by uniform application of pressure. As the integrated circuit is removed from or inserted into a circuit board by a uniform application of force with no bending or twisting, the chance of bending or breaking integrated circuit leads or pins or breaking the often fragile body is minimized.