Inventor

Philip Barkan

Inventor

Media, PA, US

Overview

20→

Patents

1976–1991

Patent span

Electricity

Primary field (CPC H)

Patents· 20 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H01Hprimary

H01HElectric switches72%

A61MDevices for introducing media into, or onto, the body4%

F02BInternal-combustion piston engines4%

F04BPositive-displacement machines for liquids4%

G05GControl devices or systems insofar as characterised by mechanical features only4%

H02HEmergency protective circuit arrangements4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

Y10TTechnical subjects covered by former us classification4%

PatentTitleYear

5,006,050'High accuracy disposable cassette infusion pump'1991 4,663,504'Load break switch'1987 4,645,888'Load break switch with safety mechanism'1987 4,381,435'Vacuum circuit breaker with means for selectively latching a wipe cage'1983 4,225,761'Electric circuit breaker comprising a plurality of vacuum interrupters simultaneously operated by a common operator'1980 4,225,763'Means for suppressing contact-separation at the end of a vacuum circuit-breaker closing operation'1980 4,192,981'Structurally improved rod array vacuum interrupter'1980 4,184,186'Current limiting device for an electric power system'1980 4,180,788'Vacuum circuit breaker with delayed trip operation'1979 4,166,937'Hydraulically-activated operating system for an electric circuit breaker'1979 4,156,803'Simple device for rapid damping of flywheel oscillations in a stored-energy operating device'1979 4,153,828'Stored-energy operating means for an electric circuit breaker'1979 4,137,436'Means for manually slow-closing a circuit breaker that has a spring-actuated operating device'1979 4,118,613'Hydraulically-actuated operating system for an electric circuit breaker'1978 4,110,582'Stored-energy operating device for an electric circuit breaker'1978 4,099,039'Means for effectively controlling the forces imposed on the movable contact of a vacuum-type circuit interrupter'1978 4,064,383'Vacuum circuit breaker with improved means for limiting overtravel of movable contact at end of opening stroke'1977 4,045,633'Gas-blast electric circuit interrupter of the puffer type'1977 4,025,886'Electric circuit breaker with electro-magnetically-assisted closing means'1977 3,991,396'Electric circuit protector comprising parallel-connected liquid-metal current-limiting devices'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1983Patents assigned to GEN ELECTRIC (16)· patent assignee history

1976–1980Based in Media, PA, US· patent location history

1979–1991Based in Stanford, CA, US· patent location history

1980Patents assigned to ELECTRIC POWER RES INST (1)· patent assignee history

1987Patents assigned to RAYCHEM CORP (2)· patent assignee history

1991Patents assigned to JAMES E COOKE (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GEN ELECTRIC	16	1976–1983
RAYCHEM CORP	2	1987
ELECTRIC POWER RES INST	1	1980
JAMES E COOKE	1	1991

Locations

Location	Patents	Span
Media, Pennsylvania, US	11	1976–1980
Stanford, California, US	9	1979–1991