Ronald W. Crookston

Person

Trafford, PA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Vacuum switch operating mechanism including laminated flexible shun...
- Patent number 6,444,939
- Issue date Sep 3, 2002
- Eaton Corporation
- Ronald W. Crookston
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Circuit breaker contact wear indicator
- Patent number 6,002,560
- Issue date Dec 14, 1999
- Eaton Corporation
- Truc Trantrung Nguyen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Molded case current limiting circuit breaker
- Patent number 5,341,191
- Issue date Aug 23, 1994
- Eaton Corporation
- Ronald W. Crookston
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Circuit breaker with positive off protection
- Patent number 5,296,664
- Issue date Mar 22, 1994
- Westinghouse Electric Corp.
- Ronald W. Crookston
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Screw adjustable clinch joint with bosses
- Patent number 5,146,194
- Issue date Sep 8, 1992
- Westinghouse Electric Corp.
- Jr. James N. Altenhof
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Tapered stationary contact-line copper cross reference to related a...
- Patent number 4,950,853
- Issue date Aug 21, 1990
- Westinghouse Electric Corp.
- Ronald W. Crookston
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Circuit interrupter having a chemical operator with double-acting d...
- Patent number 4,686,337
- Issue date Aug 11, 1987
- Westinghouse Electric Corp.
- Ronald W. Crookston
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Actuator for electrical circuit interrupter using nitrocellulose ty...
- Patent number 4,641,000
- Issue date Feb 3, 1987
- Electric Power Research Institute, Inc.
- Ronald W. Crookston
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Actuator for an electrical circuit interrupter
- Patent number 4,617,436
- Issue date Oct 14, 1986
- Electric Power Research Institute, Inc.
- Ronald W. Crookston
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Circuit interrupter operating mechanism having a chemical operator...
- Patent number 4,451,717
- Issue date May 29, 1984
- Westinghouse Electric Corp.
- Ronald W. Crookston
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Circuit interrupter operating mechanism having a chemical operator...
- Patent number 4,438,306
- Issue date Mar 20, 1984
- Westinghouse Electric Corp.
- Ronald W. Crookston
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power circuit breaker with opening and closing mechanisms
- Patent number 4,358,648
- Issue date Nov 9, 1982
- Westinghouse Electric Corp.
- Ronald W. Crookston
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Circuit interrupter operating mechanism
- Patent number 4,131,774
- Issue date Dec 26, 1978
- Westinghouse Electric Corp.
- Ronald W. Crookston
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Operating mechanism and position indicator for a circuit interrupter
- Patent number 4,016,384
- Issue date Apr 5, 1977
- Westinghouse Electric Corporation
- Charles E. LeRow
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Convection heating apparatus for multi-phase gas-type circuit inter...
- Patent number 4,006,332
- Issue date Feb 1, 1977
- Westinghouse Electric Corporation
- Ronald W. Crookston
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Ronald W. Crookston

Person

Patents Grantslast 30 patents

Vacuum switch operating mechanism including laminated flexible shun...

Circuit breaker contact wear indicator

Molded case current limiting circuit breaker

Circuit breaker with positive off protection

Screw adjustable clinch joint with bosses

Tapered stationary contact-line copper cross reference to related a...

Circuit interrupter having a chemical operator with double-acting d...

Actuator for electrical circuit interrupter using nitrocellulose ty...

Actuator for an electrical circuit interrupter

Circuit interrupter operating mechanism having a chemical operator...

Circuit interrupter operating mechanism having a chemical operator...

Power circuit breaker with opening and closing mechanisms

Circuit interrupter operating mechanism

Operating mechanism and position indicator for a circuit interrupter

Convection heating apparatus for multi-phase gas-type circuit inter...