Portable computer with display unit connected to system unit thr

Details Portable computer with display unit connected to system unit thr Portable computer with display unit connected to system unit thr

1992-05-11

1993-08-17

Picard, Leo P.

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electronic systems and devices

361681, 439 31, 16223, 16386, H05K 116, H01R 3912, E05D 1100, G06F 716

Patent

active

052374882

ABSTRACT:
An electrically conductive hinge provides for the transmission of electrical power and signals between a pivotally connected display unit and system unit of a portable computer and eliminates cable connections between the display unit and the system unit. Either the system unit, the display unit, or both units have a set of wipers which contact the conductive lines in the electrical track. The conductive lines are long enough to allow the display unit to be pivoted to and from its open and shut positions while the wipers remain in contact therewith. In one arrangement, the electrical track is manufactured on the hinge pin. In another arrangement, the electrical track is manufactured on a disk positioned at or near one end of the hinge pin.

REFERENCES:
patent: 3199059 (1965-08-01), Masse et al.
patent: 3355695 (1967-11-01), Overesch
patent: 3860312 (1975-01-01), Gordon, Jr.
patent: 4437716 (1984-03-01), Cooper
patent: 4643508 (1987-02-01), Schaller
patent: 4673228 (1987-06-01), Ditzig
patent: 4870311 (1989-09-01), Chase et al.
patent: 4904189 (1990-02-01), Hallings
patent: 5001659 (1991-03-01), Watabe
IBM Technical Disclosure Bulletin, vol. 12, No. 3, Aug., 1969, "Electrically Conductive Hinge", p. 446, J. L. Steenburgh.
IBM Technical Disclosure Bulletin, vol. 34, No. 9, Feb., 1992, pp. 29-32.

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