Plunkett; Allan Barr

Patent Applications and Registrations

Patent applications and USPTO patent grants for Plunkett; Allan Barr.The latest application filed is for "downhole pumping system with variable speed pulse-width modulated inverter coupled to electrical motor via non-gap transformer".

Company Profile

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Plunkett; Allan Barr - Sherwood OR
Plunkett; Allan Barr - Scotia NY
Plunkett; Allan Barr - Erie PA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Downhole pumping system with variable speed pulse-width modulated inverter coupled to electrical motor via non-gap transformer Grant 5,909,098 - Konecny , et al. June 1, 1	1999-06-01
Dynamic brake blending for an inverter propulsion system Grant 4,093,900 - Plunkett June 6, 1	1978-06-06
Adaptive acceleration responsive system Grant 4,075,538 - Plunkett February 21, 1	1978-02-21
Alternating current motor control method and system Grant 4,044,284 - Plunkett , et al. August 23, 1	1977-08-23
Method and apparatus for controlling variable speed, controlled current induction motor drive systems Grant 4,044,285 - Plunkett , et al. August 23, 1	1977-08-23
Torque regulating induction motor system Grant 4,023,083 - Plunkett May 10, 1	1977-05-10
Apparatus for regulating magnetic flux in an AC motor Grant 4,011,489 - Franz , et al. March 8, 1	1977-03-08
Accurate motor slip control system with speed rate limited Grant 3,916,275 - Plunkett , et al. October 28, 1	1975-10-28
Method and apparatus for automatic IR compensation Grant 3,911,340 - Plunkett October 7, 1	1975-10-07

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