The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 1992
Filed:
Oct. 18, 1991
Jeffrey W Benck, Delray Beach, FL (US);
Mohanlal S Mansuria, Coral Springs, FL (US);
Robert D Wysong, Boca Raton, FL (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
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.