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:
Dec. 22, 1992
Filed:
Aug. 28, 1991
Applicant:
Inventors:
Kurt Stoll, Esslingen, DE;
Manfred Rudle, Esslingen, DE;
Assignee:
Festo KG, Esslingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ; F16J / ;
U.S. Cl.
CPC ...
13762566 ; 13762568 ; 13762569 ; 251900 ; 277165 ;
Abstract
An annular seal arrangement for use between part placed one inside the other and able to be moved in relation to each other. The seal arrangement is constituted by a sealing ring, which has a seal housing having a substantially U-like cross section and in the form of a ring. The inner ring is elastically resilient while the outer ring functions a sealing element. The invention furthermore provides a valve fitted with such a seal arrangement, a hollow piston able to be used with it and a method for the production thereof.