Inventor

ZIMMERN BERNARD

US36 patents

⚠️ This page may combine multiple inventors who share the name “ZIMMERN BERNARD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ZIMMERN BERNARD

ZIMMERN BERNARD

Injected compressor with liquid switch

Economizer device for a refrigerating machine, a heat-pump or the like

Methods and devices for cooling a motor of a refrigerating machine with liquid and economizer gas

Method of using a thermal expansion valve device, evaporator and flow control means assembly and refrigerating machine

Oil-free rotary compressor with injected water and dissolved borate

Compressors and expansion machines of the single worm type

Method and a screw machine for processing fluid under high pressures, with liquid injection between a sealing portion and a support portion of the gate-rotor

Positive displacement machine with a plastic gate pinton

Refrigeration system with a centrifugal economizer

Volumetric screw-and-pinion machine and a method for using the same

Positive displacement meshing screw machine

Volumetric machine with screw and pinion-wheels

Rotary interengaging worm and worm wheel with specific tooth shape

Method of lubricating bearings of a machine handling liquefiable gas

Positive displacement screw machine with separation wall attached to slide valve

Casing construction for screw compression/expansion machines

Process to cut hour glass screws

Positive displacement rotary machine

Hermetic or semi-hermetic refrigeration motor-compressor unit

Device for high pressure compression

Global worm machine with seizure-preventing cells

Globoid worm machine with metal ring in bearing housing

Method of lubricating bearings of a refrigeration or the like compressor

Control slide for a screw volumetric machine and a machine equipped therewith

UNISCREW LTD

Process to supercharge and control a single screw compressor

Screw having a V-shaped groove profile for cooperating with a pinion in a compression or expansion machine

Inter-engaging threaded rotor and pinion machine with multi-edged pinion tooth flanks

Method for converting thermal energy into mechanical energy and a machine for carrying out said method

Process to control the delivery of a single screw compressor

Method for machining the screw of a compression or expansion machine and a device for the application of said method

Double-acting rotary expansible chamber pump adaptable to series or parallel operation

(unassigned)

Single screw compressor with liquid lock preventing slide

Screw-type compressor with liquid lock protection

Process to produce nearly oil free compressed ammonia and system to implement it

HALL THERMOTANK PROD LTD

Rotary screw machine with two intermeshing gate rotors and two independently controlled gate regulating valves

MONOVIS BV

Screw compressors