Inventor
Alan B. Shimp
Inventor
Monroeville, PA, US
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Hprimary
H02HEmergency protective circuit arrangements56%
H01HElectric switches31%
G01RMeasuring electric variables6%
G08BSignalling systems, e.g. personal calling systems3%
H05KPrinted circuits3%
PatentTitleYear
5,559,719'Digitally controlled circuit interrupter with improved automatic selection of sampling interval for 50 Hz and 60 Hz power systems'19965,483,408'Overcurrent trip unit with separately adjustable neutral protection'19965,428,495'Electrical switching apparatus with digital trip unit and automatic frequency selection'19955,331,501'Electrical switching apparatus with digital trip unit and memory reset'19945,105,326'Circuit for controlling the orientation of a magnetic field'19924,939,491'Combination barrier and auxiliary CT board'19904,870,532'Electric circuit for operating trip circuit of a circuit breaker'19894,639,701'Circuit breaker with interface flux shunt trip'19874,634,981'Method for testing a circuit breaker using a three terminal current transformer'19874,603,313'Circuit breaker with replaceable rating plug interlock and push to trip button'19864,358,810'Circuit breaker with alarm'19824,298,852'Circuit breaker with interchangeable rating adjuster and interlock means'19814,296,450'Discriminating circuit breaker protection system direct current power distribution systems'19814,279,007'Single-phase fault detecting circuit breaker'19814,258,403'Ground fault circuit interrupter'19814,205,361'Undervoltage control apparatus for circuit interrupter'19804,181,922'Circuit interrupter with improved adjustable trip unit'19804,104,691'Circuit breaker apparatus including asymmetrical fault detector'19784,016,518'Circuit breaker with improved single coil actuator and undervoltage release mechanism'19774,011,484'Undervoltage release with electrical reset for circuit breaker'19773,959,695'Circuit interrupter with ground fault trip control'19763,956,670'Circuit interrupter circuit including improved control'19763,946,279'Active impedance multiplier'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1994Patents assigned to WESTINGHOUSE ELECTRIC CORP (17)· patent assignee history
1976–1981Patents assigned to US INTERIOR (3)· patent assignee history
1976–1996Based in Monroeville, PA, US· patent location history
1995–1996Patents assigned to EATON CORP (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WESTINGHOUSE ELECTRIC CORP | 17 | 1976–1994 |
| EATON CORP | 3 | 1995–1996 |
| US INTERIOR | 3 | 1976–1981 |
Locations
| Location | Patents | Span |
|---|---|---|
| Monroeville, Pennsylvania, US | 23 | 1976–1996 |