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Patents Grants
last 30 patents
Information
Patent Grant
Process to control the delivery of a single screw compressor
Patent number
4,373,866
Issue date
Feb 15, 1983
Uniscrew Limited
Bernard Zimmern
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Process to supercharge and control a single screw compressor
Patent number
4,364,714
Issue date
Dec 21, 1982
Uniscrew Limited
Bernard Zimmern
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Screw having a V-shaped groove profile for cooperating with a pinio...
Patent number
4,342,548
Issue date
Aug 3, 1982
Uniscrew Limited
Bernard Zimmern
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Inter-engaging threaded rotor and pinion machine with multi-edged p...
Patent number
4,321,022
Issue date
Mar 23, 1982
Uniscrew Limited
Bernard Zimmern
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Method for converting thermal energy into mechanical energy and a m...
Patent number
4,261,169
Issue date
Apr 14, 1981
Uniscrew Ltd.
Bernard Zimmern
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method for machining the screw of a compression or expansion machin...
Patent number
4,222,691
Issue date
Sep 16, 1980
Uniscrew Limited
Bernard Zimmern
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Double-acting rotary expansible chamber pump adaptable to series or...
Patent number
4,043,704
Issue date
Aug 23, 1977
Uniscrew Limited
Bernard Zimmern
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Patents Applications
last 30 patents
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last 30 trademarks