John O Mcgarvey

US Patent:

6750628, Jun 15, 2004

Filed:

Dec 3, 2001

Appl. No.:

10/006946

Inventors:

Alberto Franco - Hazlet NJ
John McGarvey - Laurence Harbor NJ
Daniel Kane - Edison NJ
Michael Salata - Fords NJ

Assignee:

Electric Boat Corporation - Groton CT

International Classification:

H02P 736

US Classification:

318727

Abstract:

In the embodiments described in the specification, a permanent magnet machine includes a stator having windings which intercept flux received from peripheral pole pieces in a rotor generated by permanent magnets disposed between the pole pieces. In order to control the flux passing through the stator windings, flux shunts are provided between the pole pieces and a winding on the core of each flux shunt generates flux in the shunt in proportion to current supplied to the winding so as to decrease the flux from the magnets which can be diverted from the pole pieces through the shunt. Current is supplied to the flux shunt windings in accordance with the instantaneous difference between the wave shape of the output from the machine and a desired wave shape stored in a control unit. An encoder supplies a signal to the control unit indicating the instantaneous position of the rotor with respect to the stator.

US Patent:

D2655586, Jul 27, 1982

Filed:

Dec 22, 1980

Appl. No.:

6/219353

Inventors:

George R. Fox - Holmdel NJ
Herbert C. Illium - Asbury Park NJ
Kenneth L. Korby - Red Bank NJ
John N. McGarvey - Drexel Hill PA

Assignee:

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

International Classification:

D1403

US Classification:

D14 55

US Patent:

D2482347, Jun 20, 1978

Filed:

Feb 28, 1977

Appl. No.:

5/772992

Inventors:

Donald Michael Genaro - Haworth NJ
John Niel McGarvey - Drexel Hill PA

Assignee:

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

International Classification:

D1403

US Classification:

D14 53

US Patent:

D2739097, May 22, 1984

Filed:

Jan 5, 1983

Appl. No.:

6/455912

Inventors:

Donald M. Genaro - Haworth NJ
John N. McGarvey - Drexel Hill PA
Alvin R. Tilley - Red Bank NJ

Assignee:

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

US Classification:

D14 60

US Patent:

D3271390, Jun 16, 1992

Filed:

Feb 5, 1990

Appl. No.:

7/475242

Inventors:

Alvin R. Tilley - Red Bank NJ
John N. McGarvey - Drexel Hill PA

Assignee:

American Safety Razor Company - Verona VA

US Classification:

D28 48

US Patent:

D2520877, Jun 12, 1979

Filed:

Nov 23, 1977

Appl. No.:

5/854470

Inventors:

Donald M. Genaro - Haworth NJ
John N. McGarvey - Drexel Hill PA
Gordon E. Sylvester - Jamaica NY

Assignee:

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

International Classification:

D1403

US Classification:

D14 60

US Patent:

D2805057, Sep 10, 1985

Filed:

Feb 23, 1983

Appl. No.:

6/468945

Inventors:

Donald M. Genaro - Haworth NJ
John N. McGarvey - Drexel Hill PA

Assignee:

AT&T Bell Laboratories - Murray Hill NJ

US Classification:

D14 60

US Patent:

D2750058, Aug 7, 1984

Filed:

Jan 5, 1983

Appl. No.:

6/455914

Inventors:

Donald M. Genaro - Haworth NJ
John N. McGarvey - Drexel Hill PA
Alvin R. Tilley - Red Bank NJ

Assignee:

AT&T Bell Laboratories - Murray Hill NJ

US Classification:

D14 63