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:
Jan. 08, 1980
Filed:
May. 23, 1978
Applicant:
Inventor:
Thomas W Bunyan, London, GB;
Assignee:
Pilgrim Engineering Developments Limited, London, GB;
Primary Examiner:
Int. Cl.
CPC ...
F16J / ; F16J / ;
U.S. Cl.
CPC ...
277 65 ; 277-2 ; 277 42 ; 277 59 ; 277 88 ;
Abstract
A sealing arrangement between rotary shafts and structure which surrounds them particularly propeller tailshafts and the stern boss of ships. The sealing arrangement comprises two rubbing seals mounted in series along the shaft between the shaft and structure which surrounds the shaft, with a void space between the seals. A drain conduit extends from the seals and a tun dish is located in the drain conduit to indicate the ingress of fluid into the void. The rubbing seals are formed by the opposite radial faces of an annular flange extending radially out from the shaft and by wear rings biased axially against the opposite sides of the flange.