David B. Powell

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Bristol, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Interlock arrangement for circuit breaker compartments
- Patent number 4,499,344
- Issue date Feb 12, 1985
- General Electric Company
- Roger N. Castonguay
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electric switchboard apparatus with a breaker-fuse interlock
- Patent number 4,489,362
- Issue date Dec 18, 1984
- General Electric Company
- Roger N. Castonguay
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Manually operated generator circuit breaker
- Patent number 4,220,936
- Issue date Sep 2, 1980
- General Electric Company
- David B. Powell
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Manual and motor operated circuit breaker
- Patent number 4,042,896
- Issue date Aug 16, 1977
- General Electric Company
- David B. Powell
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Circuit breaker with bell alarm and breaker lockout accessory
- Patent number 4,001,739
- Issue date Jan 4, 1977
- General Electric Company
- David B. Powell
- H01 - BASIC ELECTRIC ELEMENTS