04571456 is referenced by 129 patents and cites 5 patents.

A portable computer is contained within an outer metal case which physically encapsulates and protects the working components of the computer in the closed, portable configuration. The metal case includes a base which serves as a heat sink for transferring waste heat from heat producing electrical components to the surroundings in the open, operating configuration of the computer. The heat producing components are mounted and located in the base to maximize the transfer of heat to the base. A display housing is pivotally mounted on the base by hinge assemblies for swinging movement between a closed and latched position on the base and an upward and rearwardly inclined angle for viewing by an operator positioned in front of the computer. Stop pins coact with the hinge assemblies for holding the display housing at the desired angle of view, and torsion springs are associated with the hinge assemblies for preventing inadvertent slamming of the display housing against the base during closing. Electrical cables are guided from the base through the hinge assemblies and to the display by cable guides which protect the cables against snagging and unnecessary flexure. A single connector connects an audio circuit on a modem to use either a standard hand set for voice communications or a passive speaker and microphone as an acoustic coupler for data communications.

Title
Portable computer
Application Number
6/435126
Publication Number
4571456
Application Date
October 18, 1982
Publication Date
February 18, 1986
Inventor
William G Moggridge
Palo Alto
CA, US
Stephen R Hobson
Palo Alto
CA, US
David M Gallatin
San Jose
CA, US
Karl S Nakamura
Santa Clara
CA, US
Glenn T Edens
Menlo Park
CA, US
David C Paulsen
Santa Clara
CA, US
Agent
Donald C Feix
Assignee
Grid Systems Corporation
CA, US
IPC
G09G 1/00
A47B 88/00
H04M 11/00
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