Inventor

Leonard V. Chabala

Inventor

Maywood, IL, US

Overview

23→

Patents

1976–1996

Patent span

Electricity

Primary field (CPC H)

Patents· 23 as inventor

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

H01Hprimary

H01HElectric switches52%

H02BBoards, substations or switching arrangements for the supply or distribution of electric power13%

H01BCables10%

F16JPistons6%

H04BTransmission6%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

LOCD13%

Y10TTechnical subjects covered by former us classification3%

PatentTitleYear

5,578,792'Interconnection arrangement for electrical equipment enclosures'1996 5,252,780'Support arrangement for a rotatable insulator'1993 D0329043'Insulating through-bushing for an electrical conductor'1992 5,103,111'Switch configuration with integral sensing and power supply apparatus'1992 5,100,157'Sealing arrangement with overpressure relief'1992 5,091,616'Self-contained switch for electrical distribution circuit'1992 5,057,654'Interrupting unit with molded housing and shunt current path therethrough'1991 5,025,171'Method and arrangement for providing power operation of switchgear apparatus'1991 5,013,876'Switch contacts with improved fault-closing capability'1991 D0314758'Design for an interrupter unit for a switch assembly'1991 4,983,792'Interrupter switch with selective circuit-isolating feature'1991 D0310823'Interrupter switch'1990 4,752,859'Arrangement for providing various circuit protection device configurations'1988 4,692,734'Interrupting device with improved current-limiting arrangement'1987 4,690,780'Insulating material and use thereof in insulators'1987 4,654,489'Insulating support column with operating member'1987 4,622,250'Insulating material and use thereof in insulators'1986 4,596,906'Arrangement for providing independent rotary and linear drive outputs for high-voltage switches'1986 4,583,750'Sealing arrangement'1986 4,338,499'Anti-paralleling apparatus for high-voltage gear'1982 4,319,108'Force-limiting coupling apparatus'1982 D0254668'High voltage fuse end fitting'1980 3,965,452'Exhaust control device for circuit interrupting devices'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1993Patents assigned to S & C ELECTRIC CO (22)· patent assignee history

1976–1996Based in Maywood, IL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
S & C ELECTRIC CO	22	1976–1993

Locations

Location	Patents	Span
Maywood, Illinois, US	23	1976–1996