Richard C Krutenat

US Patent:

57336113, Mar 31, 1998

Filed:

Mar 29, 1995

Appl. No.:

8/413065

Inventors:

Garrett S. Thurston - Lowell MA
Raymond J. Suplinskas - Haverhill MA
Thomas J. Carroll - Salem NH
Donald F. Connors - Tewksbury MA
David T. Scaringella - Franklin MA
Richard C. Krutenat - Belmont MA

Assignee:

Textron Systems Corporation - Wilmington MA

International Classification:

H05B 602

US Classification:

427591

Abstract:

A porous preform is densified by heating while emersed in a precursor liquid. Heating is achieved by passing a current through the preform or by an induction coil immersed in the liquid. Ways to control the densification process are also described.

US Patent:

52001458, Apr 6, 1993

Filed:

Jul 12, 1991

Appl. No.:

7/729246

Inventors:

Richard C. Krutenat - Belmont MA
Robert S. Barnard - Highland Heights OH
John P. Dismukes - Annandale NJ
Bernard H. Kear - White House Station NJ
Horst Witzke - Flemington NJ

Assignee:

Exxon Research and Engineering Co. - Florham Park NJ

International Classification:

C22C 3300

US Classification:

420129

Abstract:

The present invention relates to a novel process for producing silicon and/or aluminum containing iron alloy product as well as the material produced from same in either sheet or bulk structure form for electromagnetic circuit application. The process entails modifying an iron feedstock containing less than about 2. 5 wt % silicon, aluminum or a combination thereof. The process further consists of diffusion of silicon or silicon and aluminum or aluminum into an iron feedstock by a pack diffusion or a chemical vapor deposition method in which the iron feedstock is heated to a temperature at which diffusion occurs in the presence of a pack containing silicon and/or aluminum sources, a reducing agent, a catalyst, and a filler, or in the presence of a flowing gas stream containing a volatile silicon compound. The resulting iron alloy product, which has a silicon content in the range of 0. 25%--7% silicon, and an aluminum content in the range of about 0%--4% aluminum, has favorable properties for motor and transformer applications.

US Patent:

53891520, Feb 14, 1995

Filed:

Oct 9, 1992

Appl. No.:

7/959299

Inventors:

Garrett S. Thurston - Lowell MA
Raymond J. Suplinskas - Haverhill MA
Thomas J. Carroll - Salem NH
Donald F. Connors - Tewksburg MA
David T. Scaringella - Franklin MA
Richard C. Krutenat - Belmont MA

Assignee:

Avco Corporation - Providence RI

International Classification:

B05D 314

US Classification:

118429

Abstract:

A porous preform is densified by heating while emersed in a precursor liquid. Heating is achieved by passing a current through the preform or by an induction coil immersed in the liquid. Ways to control the densification process are also described.

US Patent:

54421608, Aug 15, 1995

Filed:

Jan 22, 1992

Appl. No.:

7/824254

Inventors:

Harold D. Kimrey - Knoxville TN
William B. Snyder - Knoxville TN
Richard C. Krutenat - Belmont MA

Assignee:

Avco Corporation - Providence RI

International Classification:

H05B 670

US Classification:

219690

Abstract:

Apparatus for heating a fiber using microwave energy. The apparatus has a source of microwave energy feeding and applicator. The applicator is configured to concentrate the microwave energy on a chamber holding a fiber. Fibers made or coated using chemical vapor deposition in the apparatus are also disclosed.

US Patent:

55436056, Aug 6, 1996

Filed:

Apr 13, 1995

Appl. No.:

8/390836

Inventors:

Harold D. Kimrey - Knoxville TN
William B. Snyder - Knoxville TN
Richard C. Krutenat - Belmont MA

Assignee:

Avco Corporation - Providence RI

International Classification:

H05B 670

US Classification:

219690

Abstract:

Apparatus for heating a fiber using microwave energy. The apparatus has a source of microwave energy feeding and applicator. The applicator is configured to concentrate the microwave energy on a chamber holding a fiber. Fibers made or coated using chemical vapor deposition in the apparatus are also disclosed.