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:
Oct. 27, 1992
Filed:
Oct. 02, 1991
Kais Younan, Troy, MI (US);
United Solar Systems Corporation, Troy, MI (US);
Abstract
A pinching gate valve for isolating the inside of a vacuum chamber equipped with a slot for passageway of a continuous substrate web therethrough. The pinching gate valve contains three components: a base plate having two inclined first sealing surfaces surrounding a substrate slot; a pair of mating jaws mounted for reciprocal movement toward and away from each other, each of said jaws including an inclined, second sealing surface for mating engagement with one of the first sealing surfaces, and a flat clamping surface for engagement with a surface of the substrate web; and means for reciprocating the jaws from a first, open position, to a second, clamping position.