James F Benjamin

US Patent:

52269817, Jul 13, 1993

Filed:

Jan 28, 1992

Appl. No.:

7/826876

Inventors:

Steven E. Meredith - Kennewick WA
James F. Benjamin - Kennewick WA

Assignee:

Sandvik Special Metals, Corp. - Kennewick WA

International Classification:

C22C 1400

US Classification:

148520

Abstract:

A method of manufacturing corrosion resistant tubing from seam welded stock of a titanium or titanium alloy metallic material having a hexagonal close-packed crystal structure. The method includes cold pilgering a seam welded tube hollow having a weld area along the seam in a single pass to a final sized tube. The cold pilgering effects a reduction in cross sectional area of the tube hollow of at least 50% and a reduction of wall thickness of at least 50% thereby orienting the crystals in a radial direction. The method also includes annealing the final sized tubing at a temperature and for a time sufficient to effect complete recrystallization and reform grains in the weld area into smaller, homogeneous radially oriented grains. After the recrystallization annealing step, the tubing exhibits enhanced corrosion resistance which is similar to seamless tubing.

US Patent:

50187350, May 28, 1991

Filed:

Nov 9, 1989

Appl. No.:

7/433855

Inventors:

Steven E. Meredith - Kennewick WA
James F. Benjamin - Kennewick WA

Assignee:

Sandvik Special Metals Corporation - Kennewick WA

International Classification:

A63B 5312

US Classification:

273 80B

Abstract:

A wood golf club shaft adapted to receive a wood club head is about 44 to 45 in. total length from a butt end to a tip end thereof. The shaft comprises a butt section, a tip section, and a tapered section interconnecting the butt and tip sections. The tapered section tapers down toward the tip section at a rate of 0. 021 in. /in. The tapered section has a length shorter than a length of the butt section, longer than a length of the tip section, and no longer than about 13 in. The shaft has a low kick point disposed at a distance of at least about 29 inches from the butt end.

US Patent:

53324544, Jul 26, 1994

Filed:

Mar 9, 1993

Appl. No.:

8/028153

Inventors:

Steven E. Meredith - Kennewick WA
James F. Benjamin - Kennewick WA

Assignee:

Sandvik Special Metals Corporation - Kennewick WA

International Classification:

C22C 1400

US Classification:

148421

Abstract:

A method of manufacturing corrosion resistant tubing from seam welded stock of a titanium or titanium alloy metallic material having a hexagonal close-packed crystal structure. The method includes cold pilgering a seam welded tube hollow having a weld area along the seam in a single pass to a final sized tube. The cold pilgering effects a reduction in cross sectional area of the tube hollow of at least 50% and a reduction of wall thickness of at least 50% thereby orienting the crystals in a radial direction. The method also includes annealing the final sized tubing at a temperature and for a time sufficient to effect complete recrystallization and reform grains in the weld area into smaller, homogeneous radially oriented grains. After the recrystallization annealing step, the tubing exhibits enhanced corrosion resistance which is similar to seamless tubing.