Joseph H Byrne

US Patent:

43320627, Jun 1, 1982

Filed:

Feb 19, 1980

Appl. No.:

6/122420

Inventors:

Joseph H. Byrne - Houston TX

Assignee:

Bowen Tools, Inc. - Houston TX

International Classification:

F16I 700

US Classification:

24263DA

Abstract:

A well bowl has an opening extending through the bowl, at least a portion of which is formed in the shape of a pyramidal frustum. A plurality of slips are movable along the pyramidal surfaces and together define an inner opening, the slip surfaces which define the inner opening being adapted to engage and hold the outer surface of a length of drill pipe when the slips are moved toward the smaller end of the bowl opening. The slips are disengaged from the drill pipe when they are moved away from the smaller end of the bowl opening and have outer surfaces shaped to engage at least a portion of the surfaces which define the bowl opening when the slips move between their engaging and disengaging positions. The slips are guided along the surfaces which define the bowl for maintaining the slip surfaces which engage the pipe oriented in their pipe engaging positions when they move along the bowl surfaces.

US Patent:

42022088, May 13, 1980

Filed:

Oct 23, 1978

Appl. No.:

5/953736

Inventors:

Joseph H. Byrne - Houston TX

Assignee:

Joy Manufacturing Company - Pittsburgh PA

International Classification:

B25B 2314

US Classification:

73139

Abstract:

A hydraulic torque indicator incorporating a gage readable in foot-pounds, which is adjustable for any length torque arm by the use of a link arm and an adjustable hydraulic cylinder connected in a trigonometric configuration which increases the pressure output to the torque gage as the torque arm to which the indicator is connected increases in length, thereby enabling the indicator to give an accurate indication of torque for any length torque arm.

US Patent:

44080050, Oct 4, 1983

Filed:

Mar 22, 1982

Appl. No.:

6/360712

Inventors:

Joseph B. Byrne - Antioch CA

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

C08K 330

US Classification:

524421

Abstract:

Flame retardant polycarbonate compositions are prepared from dihydric aromatic compounds and alkali metal hydrogen sulfite. These compositions are more effective than similar compositions containing alkali metal sulfites.

US Patent:

41349369, Jan 16, 1979

Filed:

Dec 27, 1976

Appl. No.:

5/754399

Inventors:

Joseph B. Byrne - Antioch CA
Christian A. Weber - Sanford MI

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

C08L 6900

US Classification:

260860

Abstract:

Novel copolycarbonates exhibiting generally improved impact resistance, clarity and flame resistance are prepared by blending a polycarbonate of a trityldiol such as phenolphthalein and a polycarbonate of another diol such as bisphenol-A under conditions of temperature and/or shear sufficient to cause reaction of the polycarbonates.

US Patent:

47105488, Dec 1, 1987

Filed:

May 19, 1986

Appl. No.:

6/866991

Inventors:

Joseph B. Byrne - Antioch CA

Assignee:

The Dow Chemical Company - Midland MI

International Classification:

C08L 6700
C08L 6900
C08L 6702

US Classification:

525439

Abstract:

Blends of aromatic polyestercarbonate copolymers with aromatic polycarbonate resins provide improved low temperature toughness while maintaining tensile strength essentially equivalent to the polycarbonate component. Particularly preferred components are polycarbonates of bisphenol A and a polyestercarbonate derived from bisphenol A, phosgene and terephthaloyl and isophthaloyl chlorides.