WILLIAM ROLFF
Electrical Contractor in Westwood, NJ
License number
New Jersey 34EI01232600
Issued Date
Jul 7, 1993
Expiration Date
Mar 31, 2009
Category
Electrical Contractors
Type
Electrical Contractor
Address
Address
Westwood, NJ
Personal information
See more information about WILLIAM ROLFF at radaris.comName
Address
Phone
Park Ridge, NJ
70 Wyandemere Dr, Woodcliff Lake, NJ 07677
21 Spray Way, Lavallette, NJ 08735
21 Surf Way, Lavallette, NJ 08735
23 Spray Way, Lavallette, NJ 08735
Professional information
Two Step Phase Reset Gyro Motor Power Supply
US Patent:
4339703, Jul 13, 1982
Filed:
Sep 3, 1980
Appl. No.:
6/183686
Inventors:
William J. Rolff - Woodcliff Lake NJ
Samuel Costa - Ringwood NJ
William A. Hendricks - Parsippany NJ
Samuel Costa - Ringwood NJ
William A. Hendricks - Parsippany NJ
Assignee:
The Singer Company - Little Falls NJ
International Classification:
H02P 540
US Classification:
318702
Abstract:
A gyro motor supply provides an alternating signal to a gyro hysterisis motor. A detector senses the passage of a reference point on the gyro flywheel during each revolution thereof. A logic circuit is driven by the detector output and controls the phase of the alternating signal thereby ensuring a repeatable gyro start-up condition wherein the phasing is fixed between the reference point on the flywheel and a vector of the rotating field of the motor.