Steve R Matson

US Patent:

54958997, Mar 5, 1996

Filed:

Apr 28, 1995

Appl. No.:

8/431269

Inventors:

Paul E. Pastusek - Salt Lake City UT
Steve R. Matson - West Valley City UT

Assignee:

Baker Hughes Incorporated - Houston TX

International Classification:

E21B 1026
E21B 1046
E21C 2510

US Classification:

175 57

Abstract:

A multi-bladed reaming apparatus for enlarging a subterranean borehole, the apparatus having a tubular body with a plurality of longitudinally-extending, circumferentially-spaced, generally radially-extending blades carrying cutting elements, the blades being unequally spaced about the body. The cutting depth of the cutting elements on at least one of the blades is adjusted to modify the distribution of the depth of cut (DOC) among the cutting elements to substantially equalize the volume of formation material removed by the blades. Wear is reduced and the potential for premature failure of cutting elements on any single blade is alleviated.

US Patent:

20160018132, Jan 21, 2016

Filed:

Jul 15, 2014

Appl. No.:

14/331578

Inventors:

- Elkhart IN, US
- North Ridgeville OH, US
Steve R. Matson - West Jordan UT, US
Richard Maricic - Parma OH, US

International Classification:

F24H 3/08
F28D 1/047

Abstract:

A compact heat exchanger suitable for use in a forced air furnace for a recreational vehicle includes a multi-turn coil having linear segments interposed between bends. The coil is formed from a monolithic tube with portion of the tube being expanded to vary the diameter.