Inventor
John A. Wafer
Inventor
Beaver, PA, US
Overview
Patents· 51 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Hprimary
H01HElectric switches65%
H02HEmergency protective circuit arrangements20%
G08BSignalling systems, e.g. personal calling systems4%
G01RMeasuring electric variables3%
G05BControl or regulating systems in general1%
H01RElectrically-conductive connections1%
H02KDynamo-electric machines1%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications1%
Y04SSystems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids1%
PatentTitleYear
6,977,354'Arc hood and power distribution system including the same'20056,861,930'Transfer switch including a circuit breaker housing'20056,700,082'Trip actuator for a circuit breaker'20046,507,255'Remotely controllable circuit breaker'20036,477,022'Ground fault of arc fault circuit breaker employing first and second separable contacts and plural actuating mechanisms'20025,969,921'Ground fault electrical switching apparatus for coordinating tripping with a downstream ground fault switch'19995,886,605'Actuator assembly with calibration means and electrical power switch apparatus incorporating the actuator assembly with calibration means'19995,546,266'Circuit interrupter with cause for trip indication'19965,541,561'Integral electrical circuit controller'19965,493,278'Common alarm system for a plurality of circuit interrupters'19965,459,630'Self testing circuit breaker ground fault and sputtering arc trip unit'19955,268,661'Current throttle technique'19935,196,815'Miniature circuit breaker'19935,193,043'Phase sensitivity'19935,119,054'\"E\" frame pancake design'19925,089,797'Circuit breaker with dual function electromagnetic tripping mechanism'19924,752,853'Circuit interrupter apparatus with an integral trip curve display'19884,680,562'Integral circuit interrupter with separable modules'19874,660,009'Modular integral circuit interrupter'19874,656,446'Current limiting circuit breaker with series double break contact system per pole'19874,654,614'Current limiting solenoid operated circuit breaker'19874,625,190'Remotely controlled solenoid operated circuit breaker'19864,445,732'Electrical stab connecting means utilizing eddy current electromagnetic repulsion'19844,377,837'Circuit interrupter with overtemperature trip device'19834,358,810'Circuit breaker with alarm'19824,351,013'Circuit interrupter with multiple display and parameter entry means'19824,338,647'Circuit interrupter with digital trip unit and optically-coupled data input/output system'19824,336,516'Circuit breaker with stored energy toggle-lock structure'19824,335,437'Circuit interrupter with energy management functions'19824,335,413'Circuit interrupter with remote indicator and power supply'19824,331,999'Circuit interrupter with digital trip unit and power supply'19824,309,580'Dual arcing contacts for circuit breaker'19824,255,732'Current limiting circuit breaker'19814,255,636'Circuit breaker with current carrying conductor system utilizing eddy current repulsion'19814,245,203'Circuit interrupter with pivoting contact arm having a clinch-type contact'19814,240,053'Circuit breaker utilizing improved current carrying conductor system'19804,229,630'Circuit breaker utilizing improved arc chambers'19804,227,161'Current limiting circuit breaker with pivoting contact arm'19804,220,935'Current limiting circuit breaker with high speed magnetic trip device'19804,220,934'Current limiting circuit breaker with integral magnetic drive device housing and contact arm stop'19804,077,025'Current limiting circuit interrupter'19784,077,026'Integral motor controller'19784,042,895'Combination motor-starter and circuit breaker'19774,031,492'Triple break current limiter'19774,025,883'Modular integral motor controller'19774,013,926'Circuit breaker with improved trip actuator and undervoltage release mechanism'19774,013,984'Current limiting circuit breaker'19774,012,615'Latch for a circuit interrupter'19773,991,391'Circuit interrupter with electromagnetic opening means'19763,963,948'Magnetic pulse generator'19763,959,753'Circuit interrupter with load side short circuit'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1993Patents assigned to WESTINGHOUSE ELECTRIC CORP (40)· patent assignee history
1976–1981Based in Monroeville, PA, US· patent location history
1980–1999Based in Beaver, PA, US· patent location history
1980–1995Based in Brighton Township, Beaver County, PA, US· patent location history
1995–2005Patents assigned to EATON CORP (11)· patent assignee history
2002–2005Based in Moon Township, PA, US· patent location history
2005Based in Coraopolis, PA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WESTINGHOUSE ELECTRIC CORP | 40 | 1976–1993 |
| EATON CORP | 11 | 1995–2005 |
Locations
| Location | Patents | Span |
|---|---|---|
| Beaver, Pennsylvania, US | 22 | 1980–1999 |
| Monroeville, Pennsylvania, US | 13 | 1976–1981 |
| Brighton Township, Beaver County, Pennsylvania, US | 11 | 1980–1995 |
| Moon Township, Pennsylvania, US | 4 | 2002–2005 |
| Coraopolis, Pennsylvania, US | 1 | 2005 |