Inventor
Ernest F. Conroy, Jr.
Inventor
Monroeville, PA, US
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Hprimary
H02HEmergency protective circuit arrangements67%
B66BElevators17%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems17%
PatentTitleYear
4,731,722'Low AC harmonic DC power supply'19884,588,065'Escalator with controlled brake'19864,414,601'Solid-state load protection system having a test feature'19834,379,317'Solid-state load protection system having loss of phase sensing'19834,368,500'Solid-state load protection system having an improved inverse time delay circuit'19834,347,540'Solid-state load protection system having ground fault sensing'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982–1988Patents assigned to WESTINGHOUSE ELECTRIC CORP (6)· patent assignee history
1982–1983Based in Monroeville, PA, US· patent location history
1986Based in Penn Hills, PA, US· patent location history
1988Based in Pittsburgh, PA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WESTINGHOUSE ELECTRIC CORP | 6 | 1982–1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Monroeville, Pennsylvania, US | 4 | 1982–1983 |
| Pittsburgh, Pennsylvania, US | 1 | 1988 |
| Penn Hills, Pennsylvania, US | 1 | 1986 |