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:
Nov. 20, 2007
Filed:
Jan. 19, 2004
Applicants:
John J. Kondratuk, Kennan, WI (US);
Carl R. Marschke, Phillips, WI (US);
Inventors:
John J. Kondratuk, Kennan, WI (US);
Carl R. Marschke, Phillips, WI (US);
Assignee:
Marquip, LLC, Phillips, WI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65H 29/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A self-valving vacuum distribution system for a belt-driven sheet conveyor utilizes the sheets to automatically open vacuum control valves sequentially in a downstream direction as the sheet is carried on the belts. The system also automatically adjusts for varying sheet widths to automatically apply vacuum holding force only to the belt conveyor area covered by the sheet.