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. 18, 1998
Filed:
Mar. 06, 1995
Gary M Nobel, San Diego, CA (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
In a printer/plotter having a carriage for removably mounting one or more printhead cartridges, multiple pairs of aligned electrical interconnect pads provide signal transmission between printhead circuits and corresponding circuits on the carriage. A compliant foam material is positioned on the carriage to provide increased pressure for assuring conductivity across each interconnect pad junction. In a preferred embodiment, a thick block of compliant foam material having a flat upper surface is installed on the carriage for each printhead cartridge, and is positioned in an elongated rigid cavity of the carriage to push against the peripheral base portions of more than fifty dome-shaped copper interconnect pads which are densely packed on the flexible circuit.