Assignee
ELEVATOR GMBH
CH·34 granted patents·365 citations·filing 1980–1987
Top patents by PatentIndex Score
34 records- 0185US4638610ATheatrical stageELEVATOR GMBH·Filed 1985·Granted Jan 27, 1987·42 cites·5 claims
- 0277US4380049AMethod and apparatus for stopping an elevatorELEVATOR GMBH·Filed 1980·Granted Apr 12, 1983·29 cites·6 claims
- 0373US4742549AProcedure for watching over the area in front of a liftELEVATOR GMBH·Filed 1985·Granted May 3, 1988·22 cites·11 claims
- 0472US4771197AFrequency converter-controlled squirrel cage motorELEVATOR GMBH·Filed 1982·Granted Sep 13, 1988·35 cites·7 claims
- 0567US4543026APick-up means for roller palletsELEVATOR GMBH·Filed 1982·Granted Sep 24, 1985·22 cites·8 claims
- 0664US4742893ASignalling procedure for a lift and a signalling systemELEVATOR GMBH·Filed 1986·Granted May 10, 1988·22 cites·7 claims
- 0760US4653612ASpeed limiter for lifts provided with catch deviceELEVATOR GMBH·Filed 1984·Granted Mar 31, 1987·22 cites·6 claims
- 0855US4684856AMethod and drive for elevator DC drive motor stabilizationELEVATOR GMBH·Filed 1984·Granted Aug 4, 1987·13 cites·1 claims
- 0953US4672277AElevator motor controlELEVATOR GMBH·Filed 1984·Granted Jun 9, 1987·11 cites·11 claims
- 1049US4797675AProcedure for counting moving objects as they stopELEVATOR GMBH·Filed 1987·Granted Jan 10, 1989·12 cites·13 claims
- 1148US4687110AApparatus for angularly displacing a loadELEVATOR GMBH·Filed 1986·Granted Aug 18, 1987·14 cites·6 claims
- 1248US4346789ALift battery control systemELEVATOR GMBH·Filed 1980·Granted Aug 31, 1982·11 cites·18 claims
- 1348US4340131AOperational control system for lift and elevator machineryELEVATOR GMBH·Filed 1980·Granted Jul 20, 1982·14 cites·2 claims
- 1442US4349858AControl circuit for use with an electronic guard stripELEVATOR GMBH·Filed 1980·Granted Sep 14, 1982·11 cites·4 claims
- 1539US4414619AProcedure and apparatus for switching thyristor bridges in static alternating current/direct conversionELEVATOR GMBH·Filed 1980·Granted Nov 8, 1983·6 cites·3 claims
- 1637US4673326ABridge and stopper mechanism for an apparatus for lateral transfer of roller palletsELEVATOR GMBH·Filed 1985·Granted Jun 16, 1987·8 cites·3 claims
- 1736US4663700AWay of placing chokes with air coreELEVATOR GMBH·Filed 1986·Granted May 5, 1987·5 cites·2 claims
- 1836US4393442AProcedure and means for monitoring current data in a thyristor-controlled direct current driveELEVATOR GMBH·Filed 1980·Granted Jul 12, 1983·6 cites·4 claims
- 1935US4518062AProcedure and measuring circuit for stopping an elevatorELEVATOR GMBH·Filed 1982·Granted May 21, 1985·6 cites·3 claims
- 2035US4380275AApparatus for interfacing weighing data with a lift control systemELEVATOR GMBH·Filed 1981·Granted Apr 19, 1983·5 cites·1 claims
- 2134US4689512AElectric motorELEVATOR GMBH·Filed 1986·Granted Aug 25, 1987·5 cites·3 claims
- 2234US4539636AApparatus for inter-processor data transfer in a multi-processor systemELEVATOR GMBH·Filed 1984·Granted Sep 3, 1985·11 cites·5 claims
- 2333US4640459ADual rails for roller palletsELEVATOR GMBH·Filed 1984·Granted Feb 3, 1987·9 cites·5 claims
- 2432US4784372ATraction sheaveELEVATOR GMBH·Filed 1987·Granted Nov 15, 1988·3 cites·4 claims
- 2530US4689510AElectric motor and flywheel for operation while immersed in a liquidELEVATOR GMBH·Filed 1986·Granted Aug 25, 1987·2 cites·2 claims
- 2630US4480283AProcedure and means for monitoring the phase sequence in a three-phase networkELEVATOR GMBH·Filed 1981·Granted Oct 30, 1984·2 cites·5 claims
- 2729US4621222AMethod for improving the dynamic converter drive for a direct current elevator motorELEVATOR GMBH·Filed 1985·Granted Nov 4, 1986·3 cites·4 claims
- 2828US4679032AProcedure and means for producing a contrast imageELEVATOR GMBH·Filed 1984·Granted Jul 7, 1987·4 cites·16 claims
- 2928US4355704AProcedure for fine positioning an alternating current liftELEVATOR GMBH·Filed 1980·Granted Oct 26, 1982·3 cites·1 claims
- 3027US4499972ASpeed control system for a motor with short-circuited rotorELEVATOR GMBH·Filed 1982·Granted Feb 19, 1985·0 cites·2 claims
- 3126US4583167AProcedure and apparatus for conveying external and output data to a processor systemELEVATOR GMBH·Filed 1984·Granted Apr 15, 1986·4 cites·13 claims
- 3224US4673066ABrake in a light-constructed transport carriageELEVATOR GMBH·Filed 1986·Granted Jun 16, 1987·3 cites·6 claims
- 3323US4466053AThyristor converter driveELEVATOR GMBH·Filed 1981·Granted Aug 14, 1984·0 cites·4 claims
- 3420US4635320AFloor selector for liftELEVATOR GMBH·Filed 1983·Granted Jan 13, 1987·0 cites·1 claims
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