1
Fletcher W Chapin, David W Dranchak, David E Engle, Richard R Hall, Thomas G Macek: High density connector. International Business Machines Corporation, Lawrence R Fraley, October 29, 1991: US05061192 (142 worldwide citation)

An electrical connector for interconnecting a pair of circuit members (e.g., circuit module and printed circuit board) which assures highly reliable yet separable connections for these members. The connector includes an electrically insulative (e.g., plastic) frame which defines an internal opening ...


2
James R Bentlage, David E Engle, Geoffrey R Mariner, John J Squires, John H Williams: Electronic package for high density applications. International Business Machines Corporation, Lawrence R Fraley, March 24, 1992: US05099393 (127 worldwide citation)

An electronic package including a first circuitized substrate (e.g., printed circuit board) and a flexible circuitized substrate wherein the flexible substrate is precisely aligned in removable manner relative to the first substrate. This is accomplished utilizing a retention member and associated f ...


3
Fletcher W Chapin, David W Dranchak, David E Engle, Richard R Hall, Thomas G Macek: High density connector. International Business Machines Corporation, Lawrence R Fraley, November 17, 1992: US05163834 (59 worldwide citation)

An electrical connector for interconnecting a pair of circuit members (e.g., circuit module and printed circuit board) which assures highly reliable yet separable connections for these members. The connector includes an electrically insulative (e.g., plastic) frame which defines an internal opening ...


4
David W Dranchak, David E Engle, David E Hessian, Alan D Knight, Wai M Ma, Thomas G Macek, John J Squires: Electrical connector utilizing flexible electrical circuitry. International Business Machine Corporation, March 13, 1990: US04907975 (25 worldwide citation)

An assembly for interconnecting two relatively rigid circuit cards using a flexible circuit for forming this connection is provided. The assembly includes a housing which has a first pressure exerting member which has the flexible circuit reeved therearound. Second and third pressure exerting member ...


5
David W Dranchak, David E Engle, Alan D Knight: Connector assembly with movable carriage. IBM Corporation, Lawrence R Fraley, January 9, 1990: US04892487 (25 worldwide citation)

An electrical connector assembly including a housing, a flexible circuit located within the housing and including first and second terminals thereon, a carriage movably positioned within the housing and designed for having a circuit board inserted therein, actuation means connected to the carriage t ...


6
William S Ebert, David E Engle, Kishor V Desai, Thomas G Macek: Test apparatus for circuitized substrate. International Business Machines Corporation, Lawrence R Fraley, March 5, 1996: US05497103 (7 worldwide citation)

A test apparatus and method for testing circuitized substrates such as printed circuit boards or ceramic substrates having one or more chips thereon. The apparatus includes one substrate (e.g., printed circuit board) located on a base and adapted for having another circuitized substrate (e.g., flexi ...


7
Robert E Darrow, David E Engle: Temperature compensating strain relief connection for flexible electrical circuits. International Business Machines Corporation, Calfee Halter & Griswold, April 27, 1993: US05205750 (5 worldwide citation)

A structure and method for mounting a flexible electrical circuit to rigid substrate to effect electrical connection between contacts on one side of the flexible electrical circuit with electrical pads on one side of the substrate is provided. The connection allows for strain relief due to mechanica ...