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:
Feb. 13, 1990
Filed:
Oct. 03, 1988
Applicant:
Inventor:
John F Derrick, Williamson, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355309 ; 355 24 ; 271118 ;
Abstract
A sheet feeder for feeding sheets from a support platform comprising a sheet support platform, a rotatable sheet feed roll reciprocally movable between a sheet feeding position wherein it is in feeding engagement with the top sheet when at least one sheet is on said support platform and a retracted standby position wherein it is retracted from feeding engagement with said the top sheet and a movable sheet restrictor member positioned by gravity to maintain the top sheet spaced from the rotatable feed roll when the feed roll is in the retracted standby position. In a preferred embodiment the sheet feeder prints for a second pass through a printing machine.