Frank R. Keller

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Spring House, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Modular electrical control station
- Patent number 4,209,820
- Issue date Jun 24, 1980
- Gould Inc.
- Morton S. Rundel
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Magnetic trip means for circuit breaker
- Patent number 4,129,843
- Issue date Dec 12, 1978
- I-T-E Imperial Corporation
- Frank R. Keller
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Platform mounted switch operating mechanism
- Patent number 4,107,488
- Issue date Aug 15, 1978
- Gould Inc.
- Frank R. Keller
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Modular electrical control station with switch detent means
- Patent number 4,092,508
- Issue date May 30, 1978
- Gould, Inc.
- Morton Stanley Rundel
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Unitized motor starter
- Patent number 3,987,382
- Issue date Oct 19, 1976
- I-T-E Imperial Corporation
- John B. Cataldo
- H01 - BASIC ELECTRIC ELEMENTS