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:
Jun. 27, 1978
Filed:
Mar. 08, 1976
Applicant:
Inventor:
Manfred Heinen, Oberhausen, DT;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277 962 ;
Abstract
A shaft seal construction, comprises a shaft housing, with a shaft rotatably supported in the housing and having a shaft ring extending around the shaft which defines a ring seal face made of berryllium copper. A packing ring of aluminum has an annular packing ring face of an oxide of the aluminum which is engaged with the ring seal face. The packing ring is supported by a flexible closure member carried by the housing and engages with the packing and provides a gas seal with the packing ring around the shaft. The spring urges the packing ring into engagement with the shaft ring.