Frederick W Stone

US Patent:

45891877, May 20, 1986

Filed:

Jan 23, 1984

Appl. No.:

6/572801

Inventors:

Frederick A. Stone - Durham CT
Robert J. Maron - Cromwell CT

Assignee:

Teleco Oilfield Services Inc. - Meriden CT

International Classification:

B23P 2500

US Classification:

29458

Abstract:

An insulating coupling for drill collars and a method of manufacture thereof are presented wherein the coupling consists of an electrically insulating ceramic coating applied in thickness from 0. 002 to 0. 006 inch to the threads of the coupling by a detonation gun process and sealed with an epoxy sealer to reduce porosity.

US Patent:

42653053, May 5, 1981

Filed:

Aug 27, 1979

Appl. No.:

6/070154

Inventors:

Frederick A. Stone - Durham CT
Normand P. Holcomb - Warehouse Point CT

Assignee:

Teleco Oilfield Services Inc. - Middletown CT

International Classification:

E21B 4712
F16F 712
G01D 1110
G01L 1914

US Classification:

166113

Abstract:

A mounting assembly and shock absorber are presented for mounting and shock absorption for the transmitter and sensor elements of a mud pulse telemetry system. The shock absorbing apparatus for the mud pulse transmitter is entirely located at one end of the assembly above the transmitter, and the shock absorber apparatus for the sensor package is located at the other end of the assembly below the sensor package, whereby all of the elements can be incorporated in a one piece drill collar.

US Patent:

42561400, Mar 17, 1981

Filed:

Dec 6, 1979

Appl. No.:

6/100804

Inventors:

Nareshwar Swaroop - Mt. Vernon OH
Frederick L. Stone - Woodbury CT

Assignee:

The Continental Group, Inc. - New York NY

International Classification:

B29F 304

US Classification:

137561A

Abstract:

This relates to a hot runner manifold for distributing thermoplastic melts from a plasticizer to plural cavities of a mold. The manifold is formed in two parts which include a plate and a ring which are joined along a central parting line in a manner wherein all of the sprue and runner portions may be readily and accurately machined. The ring is shrunk in place on the plate and has an interference fit which is sufficient to prevent separation of the ring from the plate during normal operating conditions without the use of any fasteners.

US Patent:

43192408, Mar 9, 1982

Filed:

Aug 30, 1979

Appl. No.:

6/071746

Inventors:

Frederick A. Stone - Durham CT
Charles W. Helm - Rocky Hill CT
Ralph F. Spinnler - Glastonbury CT

Assignee:

Teleco Oilfield Services Inc. - Middletown CT

International Classification:

G01V 140

US Classification:

340856

Abstract:

A flexible electrical connector for borehole telemetry apparatus is presented wherein the electrical connector includes an elongated metal tube having an intermediate section coiled around the exhaust shroud of a mud turbine. Electrical conductors are housed within the metal tube, and the tube is internally pressurized with oil, the pressure of the oil being maintained equal to the drilling mud pressure by a bellows exposed to the drilling mud.

US Patent:

46747737, Jun 23, 1987

Filed:

Nov 19, 1985

Appl. No.:

6/799623

Inventors:

Frederick A. Stone - Durham CT
Robert J. Maron - Cromwell CT

Assignee:

Teleco Oilfield Services Inc. - Meriden CT

International Classification:

F16L 1112

US Classification:

285 48

Abstract:

An insulating coupling for drill collars and a method of manufacture thereof are presented wherein the coupling consists of an electrically insulating ceramic coating applied in thickness from 0. 002 to 0. 006 inch to the threads of the coupling by a detonation gun process and sealed with an epoxy sealer to reduce porosity.

US Patent:

52726800, Dec 21, 1993

Filed:

May 17, 1991

Appl. No.:

7/703480

Inventors:

Frederick A. Stone - Durham CT
Donald Grosso - West Hartford CT
Stephen Wallace - Old Meldrum, GB6

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

G01V 140

US Classification:

367 85

Abstract:

A method is presented for obtaining borehole measurements using measurement-while-drilling apparatus wherein mud pulse telemetry signals are decoded from the annulus pressure signals (as opposed to the standpipe pressure signals). The data bearing signals are enhanced by combining the annulus pressure signals and standpipe pressure signals using addition, multiplication or correlation techniques.

US Patent:

47618892, Aug 9, 1988

Filed:

Sep 10, 1986

Appl. No.:

6/905979

Inventors:

Martin E. Cobern - Cheshire CT
Frederick A. Stone - Durham CT
Edmund M. Hamlin - East Hampton CT

Assignee:

Teleco Oilfield Services Inc. - Meriden CT

International Classification:

E21B 47022

US Classification:

33302

Abstract:

A method is presented, for use in borehole drilling, for correcting errors in azimuth determination resulting from variations in the earth's magnetic field to which a measuring instrument is exposed. The method distinguishes between variations in the earth's magnetic field caused by the drillstring and variation caused by external sources, and the method corrects only for errors caused by the drillstring. If the error is caused by the drillstring, an azimuth correction is made based on dip angle data, thereby reducing errors caused by scale factor variations since dip angle is a ratio quantity of magnetic field components.

US Patent:

42666066, May 12, 1981

Filed:

Aug 27, 1979

Appl. No.:

6/070092

Inventors:

Frederick A. Stone - Durham CT

Assignee:

Teleco Oilfield Services Inc. - Middletown CT

International Classification:

E21B 4700

US Classification:

166113

Abstract:

A hydraulic circuit for borehole telemetry apparatus is presented wherein a mud pulse valve is operated by hydraulic pressure applied to differential areas of an actuating piston. The system includes a hydraulic pump, a filter in the line between the pump and the piston to be actuated, an accumulator upstream of the filter, a regulating and relief valve downstream of the filter, and solenoid actuated valves to control delivery of hydraulic fluid to the piston. The system also includes a pressure compensating bellows to compensate for changes in pressure in the drilling mud.