Inventor

Bernd Steinkuhl

Inventor

Lunen, DE

Overview

34→

Patents

1976–1999

Patent span

Fixed constructions

Primary field (CPC E)

Patents· 34 as inventor

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

E21Cprimary

E21CMining or quarrying55%

B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors29%

Y10TTechnical subjects covered by former us classification10%

E21FSafety devices, transport, filling-up, rescue, ventilation, or draining in or of mines or tunnels2%

F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges2%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%

PatentTitleYear

5,947,265'Chain drum arrangement for scraper chain conveyors'1999 5,927,479'Chain drum arrangement for scraper chain conveyors'1999 5,601,341'Drive gear and guide arrangement for a mining machine, in particular a disk shearer'1997 5,287,955'Connections for inter-connecting the pans of scraper-chain conveyors'1994 5,267,640'Transfer station assembly for scraper-chain conveyors'1993 5,249,664'Scraper units for scraper-chain assemblies'1993 5,224,582'Channel sections for scraper-chain conveyors'1993 5,171,065'Mineral mining installation with chain-tensioning system'1992 5,167,438'Guides for mineral winning ploughs'1992 5,156,258'Scraper-chain conveyors for use in mineral mining'1992 5,092,660'Cutter bit assemblies and arrangements for use with mining or tunnelling machines'1992 5,033,604'Connections between the pans of scraper-chain conveyors'1991 4,934,757'Control of mineral mining machines'1990 4,787,501'Connections for scraper-chain conveyors'1988 4,762,372'Cutter-bit assemblies'1988 4,735,304'Scraper-chain conveyor channel section'1988 4,715,659'Mineral mining installations'1987 4,626,034'Cutter-bit assemblies'1986 4,607,890'Guides for mineral mining machines'1986 4,583,785'Mineral winning plough'1986 4,571,003'Apparatus for controlling the position of a mineral mining machine'1986 4,557,525'Cutter bit assembly'1985 4,548,444'Mineral winning plough'1985 4,458,951'Apparatus for controlling the position of a mineral mining machine'1984 4,456,307'Cutter bit assembly'1984 4,453,771'Mineral winning plough with sword plate formed of plural parts'1984 4,403,809'Mineral winning plough'1983 4,332,421'Coupling devices for connecting a mineral mining machine to a drive chain'1982 4,245,736'Devices for attachment to scraper-chain conveyors used in mineral mining'1981 4,199,194'Control means for a coal plough'1980 4,179,161'Plough for winning material from a mineral face'1979 4,159,850'Mineral mining installation with face end winning'1979 4,142,812'Scraper-chain conveyors'1979 3,999,651'Conveyors for use in mining'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1993Patents assigned to GEWERK EISENHUETTE WESTFALIA (27)· patent assignee history

1976–1999Based in Lunen, DE· patent location history

1992–1994Patents assigned to WESTFALIA BECORIT IND TECH (4)· patent assignee history

1997–1999Patents assigned to DBT GMBH (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GEWERK EISENHUETTE WESTFALIA	27	1976–1993
WESTFALIA BECORIT IND TECH	4	1992–1994
DBT GMBH	3	1997–1999

Locations

Location	Patents	Span
Lunen, DE	34	1976–1999