1
Dennis R Mitchell, James R Molenda, Karl S Nakamura: Portable computer with removable and replaceable add-on modules. Tandy Corporation, Donald C Feix, January 16, 1990: US04894792 (131 worldwide citation)

A portable computer is constructed to utilize bottom add-on expansion modules, battery tray compartment plug-in modules and mass storage plug-in drawer modules. The modules permit the operating capabilities of the portable computer to be readily altered as desired or as needed at a given location or ...


2
Dennis R Mitchell, Steve D Friend: Disk drive ejector mechanism with latch and ejector and standby switch. GRiD Systems Corporation, Townsend & Townsend, April 19, 1994: US05305180 (78 worldwide citation)

A portable computer having a standby power mode of operation has a bay for receiving a portable removable disk drive. The drive has a pair of slots engageable with parallel guide rails in the receiver, and a notch engageable with a retractable latch normally biased in the direction of the notch. A s ...


3
Richard H Carns, Gerald Armstrong, Robert H Rast, Dennis R Mitchell: Rocket motor exhaust scrubber. The United States of America represented by the Secretary of the Navy, Fredric Zimmerman, November 15, 2005: US06964699 (18 worldwide citation)

A wet scrubber having a series of chambers for capturing and cooling exhaust gases generated during static test firing of rocket motors. Exhaust gas enters an inlet to a first chamber and is cooled and slowed by a spray solution. HCL gas is condensed and absorbed by the spray solution and precipitat ...


4
Graham P Lloyd, Dennis R Mitchell: Pen cord tensioning device. Grid Systems, Townsend & Townsend, September 25, 1990: US04959511 (4 worldwide citation)

This invention relates to an expansion device to permit the conductor to be extended beyond its normal operational length without breaking the electrical connection between the objects. In the preferred embodiment of the invention, a spring maintains the conductor at a predetermined length. The spri ...


5
David C Paulsen, William L Calvert, Dennis R Mitchell, Larry D Gravelle: Rotatable connector mechanism. Grid Systems Corporation, Donald C Feix, May 6, 1986: US04586763 (1 worldwide citation)

A connector component for computer units and peripheral units is secured to the back of each unit and enables the units to be stacked together in direct electrical connection, without the need for cables between them. Each connector component includes a pair of swivel mounts which rotate through 90 ...



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