MICHAEL THEODORE GRESH
Pilots at Wheatridge Dr, Jeannette, PA
License number
Pennsylvania A2918529
Issued Date
Nov 2015
Expiration Date
Nov 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
364 Wheatridge Dr, Jeannette, PA 15644
Professional information
Seal Assembly Including A Sealing Ring Having Internal Lubricant Passageways
US Patent:
4749199, Jun 7, 1988
Filed:
Dec 22, 1983
Appl. No.:
6/564254
Inventors:
Michael T. Gresh - Jeannette PA
Assignee:
Elliott Turbomachinery Co., Inc. - Jeannette PA
International Classification:
F16J 1534, F16J 1540
US Classification:
277 83
Abstract:
A shaft seal assembly having an annular member affixed to the shaft for rotation therewith, a sleeve encompassing the shaft and being biased axially towards the annular member and a free floating sealing ring interposed between the annular member and the sleeve to prevent pressurized working substance form leaking about the shaft is disclosed. The sealing ring includes internal flow passageways which act to reduce the pressure of lubricant flowing therethrough to both effectively cool the free floating ring and to reduce the pressure of the lubricant obviating the necessity of a separate breakdown bushing.