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:
Mar. 16, 1982
Filed:
Jun. 23, 1980
Applicant:
Inventor:
John W Ulseth, Roseville, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
271 22 ; 271118 ; 271119 ; 271162 ;
Abstract
A sheet feeder for feeding a single sheet from a stack of sheets by using a rotating cylindrical feed roller having a truncatel portion spaced away from the stack and a full diameter portion able to contact the stack whenever it is lifted by a lifting arm, which is pivoting in a timed relationship to the feed roller. This device simplifies sheet timing and eliminates the need for a constant biasing of the stack against a feeding member.