LARRY A PARKER, JR
Electrician at Karen Dr, Fort Worth, TX
License number
Texas 30073
Expiration Date
Feb 19, 2018
Category
Journeyman Electrician
Address
Address
5125 Karen Dr, Fort Worth, TX 76180
Phone
(817) 781-0205
Organization information
See more information about LARRY A PARKER at bizstanding.comLarry Parker
512 Main St, Ft Worth, TX 76102
Industry:
Management Consulting Services
Doing business as:
Lpl Financial
Professional information
Compressible Pressure Compensator Within Closed Lubricant Volume Of An Earth Boring Apparatus
US Patent:
4509607, Apr 9, 1985
Filed:
Aug 26, 1983
Appl. No.:
6/527704
Inventors:
William C. Saxman - Irving TX
Larry J. Parker - Fort Worth TX
Larry J. Parker - Fort Worth TX
Assignee:
Dresser Industries, Inc. - Dallas TX
International Classification:
E21B 1024
US Classification:
175227
Abstract:
A compressible pressure compensating member is disposed within a sealed lubricant volume enclosing a bearing and seal system of an earth boring apparatus. Lubricant is maintained within the volume by metal face seals so that both the bearing and the seal structure are lubricated thereby. As the lubricant expands, due to thermal expansion under use, the increased pressure is accommodated by compression of the compressible member so that no lubricant is expelled through the seals. When the lubricant cools and contracts, the compensator expands to maintain the lubricant volume at the initially filled level.