International Business Machines Corporation

Shakespeare Marine Electronics, Inc.

Robert D Wysong

Daniel F Ansell

Jeffrey W Benck

Michael Sven Miller

Steven E Howell

James C Harris

Richard F Sapper

Jay H Neer

Pedro M Alfonso

Brian Alan Trumbo

Hunter T Foy

Myron F Davis

John R Dewitt

Kevin K Cooke

Mohanlal Savji Mansuria

Mark Evan Cohen

Willis Y Jordan, Iii

Thomas A Anzelone

James W Deiso

Jose E Richards

Eddie M Reid

Thomas A Bocchino

Mark L Shipley

Samuel T Cheung

Thomas Albert Bocchino

Jeffrey William Benck

Daniel Frederick Ansell

James William Deiso

Mark Lynn Shipley

Jose Edmundo Richards

This invention relates to enclosures for microcomputers, and more particularly to such an enclosure which facilitates access to and shielding of the operative components of a personal computer. The enclosure includes a chassis, a cover for cooperating with the chassis for enclosing a volume to contain operating components of the microcomputer, and interrupted wedge members for coupling the chassis and cover upon relative movement therebetween in a predetermined direction. The interrupted wedge members include a plurality of hooks on one of the chassis and cover and a plurality of pockets on the other, with the hooks and pockets being disposed along two sides of the chassis and cover for entry of hooks into cooperating pockets on movement of the cover into position for cooperation with the chassis in enclosing a volume.

Microcomputer enclosure with interrupted wedge locking arrangement and

This invention relates to personal computers, and more particularly to the provision of a shielding structure for attenuating the possible effects of electromagnetic interference on input/output circuits of the computer while structurally reinforcing a side edge portion of a multilayer planar board. The shielding structure has two cooperating constituent parts, one being particularly formed ground plane areas in exterior layers of the planar board and the other being a particularly formed thin sheet metal member which extends about and substantially encloses connectors by which input/output signals are passed to circuits within the planar board.

Personal computer with shielding of input/output signals

Pen-based computer

A personal computer system unit has a planar card upon which is mounted a processor card. The processor has mounted thereon those components, except for system memory, which are most likely to be replaced for a system upgrade. The processor card has a printed circuit board with printed circuits thereon that terminate along one edge at contacts. Two aligned edge connectors are mounted on the planar board. One connector has a key which engages a slot on the edge of the processor card to align the many contacts with contact arms. Two levers are mounted on the card and cooperate with frame elements to insert, extract and latch the processor card. Each element also has a guide to align the processor card for insertion into the edge connectors.

Personal computer processor card interconnect system

A digitizer tablet has a base integrated with a heat sink. The base includes a flat portion which surrounds the heat sink. The sink is recessed relative to the flat portion and includes a flat upper surface on which a thermal pad is mounted. A planar member overlies the base and has a plurality of heat generating modules mounted on the underside thereof, the modules being pressed into the thermal pad to establish a thermal conduction whereby heat flows from the modules through the thermal pad and into the heat sink. The underside of the heat sink is recessed and has a plurality of cooling pins which provide a relatively large area. The pins are cooled by natural air convection and radiation, and lie within the recess to prevent body contact with portions other than the tips thereof. Bosses mount the planar member on the base and coact with fasteners to press the modules against the thermal pad.

Digitizer tablet having cooling apparatus with base and integrated heat

In a low profile microcomputer, adapter cards are mounted horizontally in order to be able to use adapter cards designed for earlier, higher, machines. The cards are coupled to the microcomputer planar board by an extender card which extends vertically from the planar and has sockets extending horizontally when the card is in position. The adapter cards have edge connections which couple to these sockets. A removable bridge device is coupled between the top of the extender card and a vertical wall of the microcomputer to minimize horizontal movement of the extender card. For adapter cards which do not extend fully between the front and rear walls of the microcomputer, a channelled support arm, which fits over an end of a card, and is removably mounted on a vertical wall of the computer for slidable engagement with the card.

Adapter card mounting in a low profile microcomputer

Program cartridge for a personal computer

A device for biasing at least one thermal printhead into uniform, tangential contact with the printing media includes a shaft supported by a housing, an assembly rotatable about the shaft for supporting at least one thermal printhead, and at least one biasing spring for establishing and maintaining adequate torsion on the supporting assembly so as to substantially minimize or eliminate positional instability of the printhead. In the event a plurality of thermal printheads are utilized, the biasing spring also simultaneously compresses each of the supporting assemblies so as to substantially minimize the gap between each of the printheads while maintaining the gap dimensions substantially constant.

Thermal printhead biasing arrangement

Growing community of inventors

Boca Raton, FL, United States of America

Robert D Wysong