Fred K. Fox
Engineering in Austin, TX

License number
Louisiana PE.0008807
Issued Date
Nov 6, 1962
Expiration Date
Mar 31, 2003
Category
Civil Engineer
Address
Address
Mr Fred K Fox, Austin, TX 78701

Professional information

Fred Fox Photo 1

Well Drilling Tool

US Patent:
4260032, Apr 7, 1981
Filed:
Nov 26, 1979
Appl. No.:
6/097133
Inventors:
Fred K. Fox - Austin TX
Assignee:
Engineering Enterprises, Inc. - Houston TX
International Classification:
E21B 402
US Classification:
175107
Abstract:
There is disclosed a turbodrill having an axial thrust bearing section which is contained within a lubricant chamber arranged within an annular space between the case and shaft of the turbodrill above the turbine section, and which is defined between means sealing between the shaft and the case which, in use of the turbodrill, are above the drilling fluid circulating therethrough.


Fred Fox Photo 2

Well Drilling Tool

US Patent:
4308927, Jan 5, 1982
Filed:
Apr 1, 1980
Appl. No.:
6/136358
Inventors:
Fred K. Fox - Austin TX
Assignee:
Engineering Enterprises, Inc. - Houston TX
International Classification:
E21B 402
US Classification:
175107
Abstract:
There is disclosed a turbodrill having thrust bearings received within an annular space between its shaft and case to support the shaft for rotation within the case, and a face seal closing off the lower end of the space beneath seal rings forming a lubricant chamber in which the bearings are contained. One seal ring of the face seal is carried by the case for rotation therewith, and the other seal ring thereof is carried by a sleeve for rotation therewith. The sleeve extends from within the space to a level beneath the case, and is connected to the shaft for rotation therewith. Means are provided for moving the sleeve longitudinally with respect to the shaft in order to adjust the preload applied by springs to the other seal ring of the face seal.