Inventor

Hubert Geisthoff

Inventor

Lohmar, DE

Overview

35→

Patents

1976–1993

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 35 as inventor

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

F16Dprimary

F16DCouplings for transmitting rotation35%

Y10TTechnical subjects covered by former us classification21%

A01BSoil working in agriculture or forestry18%

F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges8%

F16CShafts6%

B60DVehicle connections5%

F16PSafety devices in general3%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles1%

F16HGearing1%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests1%

PatentTitleYear

5,267,904'Hooks universal joint having supporting member'1993 5,054,594'Pawl freewheel clutch'1991 4,960,344'Locking mechanism for fixing an outer part on an inner part'1990 4,900,181'Locking device for connecting a driveshaft to a power take-off shaft'1990 4,802,326'Overload coupling for protecting drive trains especially on agricultural machines'1989 4,799,817'Double hookes joint'1989 4,781,652'Lubrication arrangement for hookes joint'1988 4,641,990'Driveline coupling with safety interlock mechanism latchable in the open position'1987 4,642,067'Protective bellows assembly with plugged lubricating aperture'1987 4,639,163'Driveline coupling with safety interlock mechanism'1987 4,639,162'Drawing lock for torque transmitting engagement between two shaft members arrestable in the open position'1987 4,607,538'Angular torque transmission mechanism'1986 4,568,312'Profiled hub for drive shaft assembly'1986 4,566,570'Overload clutch'1986 4,540,305'Drive shaft assembly'1985 4,473,361'Multipartite protective device for universal joint shafts'1984 4,460,077'Overload clutch assembly'1984 4,437,553'Freewheeling clutch assembly'1984 4,437,782'Splined hub assembly for connecting two shafts'1984 4,417,650'Safety clutch'1983 4,349,092'Device for coupling and uncoupling a universal joint shaft'1982 4,326,392'Multipartite protective device for universal joint shafts'1982 4,295,389'Adjustable length upper guide member'1981 4,265,327'Release device'1981 4,236,420'Wide-angle joint'1980 4,236,388'Separable three-section telescopic drive shaft'1980 4,226,316'Torque limiting clutch assembly with freewheeling action'1980 4,146,246'Three point linkage'1979 4,126,057'Adjustable length upper guide member'1978 4,107,952'Protective guard assembly for a universal joint'1978 4,075,873'Free-wheeling overload coupling'1978 4,075,872'Telescoping torque transmitting shaft'1978 4,023,822'Coupling hook for a guide member of a tractor three-point attachment'1977 4,018,451'Tractor three-point connection having leaf springs'1977 3,961,677'Device for connecting a power transmission shaft of an agricultural implement, machine or the like to a tractor power take-off shaft'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1993Patents assigned to WALTERSCHEID GMBH JEAN (35)· patent assignee history

1976Based in Lohmar-Donrath, DE· patent location history

1977–1993Based in Lohmar, DE· patent location history

1979Based in Lomar, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
WALTERSCHEID GMBH JEAN	35	1976–1993

Locations

Location	Patents	Span
Lohmar, DE	33	1977–1993
Lomar, DE	1	1979
Lohmar-Donrath, DE	1	1976