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:
Apr. 16, 2002
Filed:
Nov. 22, 1999
Applicant:
Inventor:
Marc Vernackt, Overmere, BE;
Assignee:
Mania Barco N.V., Zwijnaarde, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A45D 4/214 ; B65H 5/02 ;
U.S. Cl.
CPC ...
A45D 4/214 ; B65H 5/02 ;
Abstract
This invention relates to a vacuum holder for securing workpieces, such as flexible media or printed circuit boards, through a suction force. Pressure responsive, one way flow valves are incorporated between chambers under suction openings to control the application of suction. This results in a restraining force that is uniform in time and space, resulting in a vacuum holder that has reduced pumping requirements.