Joseph J Trytek

US Patent:

42181852, Aug 19, 1980

Filed:

Apr 3, 1978

Appl. No.:

5/892964

Inventors:

Joseph J. Trytek - Chicago IL

International Classification:

B63H 118

US Classification:

416 20R

Abstract:

This disclosure is directed to a flexible fluid conduit means for directing fluid from a pressure source to a propeller of a ship for minimizing cavitation. The conduit is formed of split annular rings adapted to be mounted over a propeller shaft, the rings being interconnected to form passages for directing air pressure from the A-bracket through relative rotating seal members and into the body of the propeller. The disclosed interconnection of the annular rings permits substantial axial and bending movement of the propeller shaft without loss of air. Being submersed, the conduit is hydraulically balanced such that the force of water pressure tending to open the seal members is always less than the force tending to close the seal members.

US Patent:

44075120, Oct 4, 1983

Filed:

Apr 25, 1977

Appl. No.:

5/790328

Inventors:

Joseph J. Trytek - Chicago IL

Assignee:

John Crane-Houdaille, Inc. - Chicago IL

International Classification:

F16J 1516
F16J 1540

US Classification:

277 961

Abstract:

A seal for high pressure, large diameter applications wherein three factors, each individually known in the prior art, are combined to provide a seal which is capable of operating in such applications. These factors are (1) a ratio of face width to the inner radius of the face in the range of 0. 085 to 0. 30; (2) hydrodynamic lift-off pads; and (3) controlled negative rotation of the sealing rings.