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BERTRAMS JOSEF

Overview
  • Total Patents
    24
About

BERTRAMS JOSEF has a total of 24 patent applications. Its first patent ever was published in 1973. It filed its patents most often in Germany. Its main competitors in its focus markets engines, pumps and turbines, mechanical elements and transport are STEN KREUGER, FIGURA PAVOL and GREYSTONE TECH PTY LTD.

Patent filings in countries

World map showing BERTRAMS JOSEFs patent filings in countries
# Country Total Patents
#1 Germany 24

Patent filings per year

Chart showing BERTRAMS JOSEFs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bertrams Josef 24

Latest patents

Publication Filing date Title
DE3208982A1 Axial support for the rotors of hydraulic motors with partial or fully incorporated capacity by means of axial bearings and axial bearings with annular shims
DE3208981A1 Method of controlling the temperature of hydraulic fluid of differential power motors
DE3207782A1 Differential-force motor suitable for both directions of rotation by means of valve control or slide control
DE3133536A1 Rotor and vane forms for hydraulic motors with partially built-in capacity, also suitable for compressed air
DE3133534A1 Seals and wearing rings or axial bearings, fixed or controlled as a function of the temperature, and facility for axial adjustment of the rotor either directly or by way of the shaft of hydraulic motors with partial or fully built-in capacity
DE3132722A1 Hydraulic motor with 100% built-in capacity
DE2921951A1 Hydraulic eccentric rotary piston motor - has land between inlet and outlet displaced from median by angular piston seal strip spacing
DE2913234A1 Pressurised fluid-driven rotary piston motor - has rotor with radial strips controlled to expose areas giving unidirectional net torque
DE2849530A1 Differential pressure hydraulic engine - has indirect heat exchangers and external heater on discharge of pump
DE2849046A1 Oscillating blade type hydraulic motor - has radial straight and sealing faces nearly equal to radius
DE2833511A1 Hydraulic rotary piston motor - has housing and concentric rotor with radial seal strips eccentrically coupled to eccentric output shaft
DE2807509A1 Low consumption double hydraulic motor with pump - has rotor with fluid system forming two motors by pressure distribution
DE2802880A1 Adjuster drive with fluid motor - has impellers moving eccentrically with motor and pump rotors in separate housings
DE2802919A1 Hydraulic motor or pump with vaned rotor - supplies hydraulic fluid internally to rotor freely rotating in housing
DE2801334A1 Sliding vane type pneumatic pump or motor - has support stubs integral with casing containing inlet and exhaust passages
DE2742217A1 Hydraulic pump and motor acting on differential pressure - have single rotor working as motor and pump on opposite sides
DE2742121A1 Radial piston type hydraulic motor - has wide pistons in thick holder ring to take up gap between rotor and stator
DE2645033A1 Vane type hydraulic pump - has eccentre mounted width adjustable vanes and incorporated reduction gear box
DE2642384A1 Flying-saucer propulsion system using ion rockets - has differential power motor driven generator with rotor stabilising craft
DE2428034A1 Double pump, blade-type, motor - has rotor with slotted ring taking main blade, and slotted side blades