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:
Jan. 20, 2004
Filed:
Oct. 03, 2002
Applicant:
Inventor:
Victor Bruhn, Vancouver, WA (US);
Assignee:
Hewlett-Packard Development Company, LP., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/01 ;
U.S. Cl.
CPC ...
B41J 2/01 ;
Abstract
A vacuum holddown for a hard copy device comprises a platen having plural vacuum zones arranged in a side-by-side array across the platen. Each vacuum zone has a closed end and an open end and is coupled to a vacuum source. Each vacuum zone defines a recess in the upper surface of the platen that is fluidly coupled to the vacuum source through a port. The back walls and side walls of each vacuum zone are coplanar with the upper surface of the platen. A step may be positioned in the vacuum zones to define an open vacuum zone having multiple depths.