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:
Jul. 04, 2000
Filed:
Sep. 19, 1996
Applicant:
Inventors:
James A Harvey, Corvallis, OR (US);
John H Dion, Corvallis, OR (US);
Thomas J Purwins, Vancouver, WA (US);
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
347 33 ;
Abstract
An ink jet print head wiping apparatus having a wiper blade comprising a flexible elastomeric matrix containing particles of a harder material than the matrix, such that the particles resist wear to prolong the useful life of the wiper, the particle material may be a non abrasive but hard polymer such as polyethylene, which may be bonded to the matrix with a coupling agent such as silane.