operated by hydraulic or liquid pressure

Patents Grantslast 30 patents

  • Information Patent Grant

    Forming machine, in particular forging hammer, and method for contr...

    • Patent number 10,875,082
    • Issue date Dec 29, 2020
    • Langenstein & Schemann GmbH
    • Markus Otto
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Two step hydraulic breaker with automatic stroke adjustment

    • Patent number 10,472,797
    • Issue date Nov 12, 2019
    • DAEMO Engineering Co., Ltd.
    • Yong Shik Park
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Forging machine

    • Patent number 9,873,146
    • Issue date Jan 23, 2018
    • Danieli & C. Officine Meccaniche SpA
    • Marco Schreiber
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method employing high kinetic energy for working of material

    • Patent number 7,104,190
    • Issue date Sep 12, 2006
    • Morphic Technologies Aktiebolag (publ)
    • Anders Dahlberg
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Method, impact machine, and equipment included in an impact machine

    • Patent number 6,871,524
    • Issue date Mar 29, 2005
    • Morphic Technologies Aktiebolag (publ)
    • Håkan Olsson
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method for the manufacturing of a plate

    • Patent number 6,821,471
    • Issue date Nov 23, 2004
    • Morphic Technologies Aktiebolag
    • Håkan Olsson
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Method of using an impact machine

    • Patent number 6,764,644
    • Issue date Jul 20, 2004
    • Hydropulsor AB
    • Kurt Dahlberg
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Hydraulic drive system for forging press or forging machine slides

    • Patent number 6,401,516
    • Issue date Jun 11, 2002
    • SMS Eumuco GmbH
    • Otto Herndl
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of controlling the stroke frequency of a forging machine and...

    • Patent number 5,857,378
    • Issue date Jan 12, 1999
    • GFM Holding Aktiengesellschaft
    • Alfred Seeber
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Adaptive, self-regulating forging hammer control system

    • Patent number 5,715,724
    • Issue date Feb 10, 1998
    • Chambersburg Engineering Company
    • Charles J. Crout
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Hydraulic piercing and stripping assembly

    • Patent number 5,640,877
    • Issue date Jun 24, 1997
    • Ready Technology, Inc.
    • James C. Danly
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Forging machine

    • Patent number 5,582,059
    • Issue date Dec 10, 1996
    • Peter Schubert
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Double-acting forging hammer and method

    • Patent number 4,796,428
    • Issue date Jan 10, 1989
    • Oilgear Towler, Inc.
    • Richard W. Hall
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Hydraulically driven forging machine

    • Patent number 4,745,793
    • Issue date May 24, 1988
    • Pahnke Engineering GmbH & Co. KG
    • Hans J. Pahnke
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Liquid inertia tool

    • Patent number 4,484,638
    • Issue date Nov 27, 1984
    • Joe E. West
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Liquid inertia tool

    • Patent number 4,333,492
    • Issue date Jun 8, 1982
    • Joe E. West
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Hammer

    • Patent number 4,261,249
    • Issue date Apr 14, 1981
    • Joy Manufacturing Company
    • Innes Grantmyre
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Fluid operable hammer

    • Patent number 4,150,603
    • Issue date Apr 24, 1979
    • Joy Manufacturing Company
    • Murray D. Etherington
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    High-speed hydrodynamic hammer

    • Patent number 4,078,409
    • Issue date Mar 14, 1978
    • Georgy Konstantinovich Bronin
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Apparatus for generating an impact force

    • Patent number 4,077,303
    • Issue date Mar 7, 1978
    • Peder Ulrik Poulsen
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    High energy rate counterblow forming machine

    • Patent number 3,942,353
    • Issue date Mar 9, 1976
    • Josef K. Murek
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3925985

    • Patent number 3,925,985
    • Issue date Dec 16, 1975
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3916667

    • Patent number 3,916,667
    • Issue date Nov 4, 1975
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3857272

    • Patent number 3,857,272
    • Issue date Dec 31, 1974
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3841125

    • Patent number 3,841,125
    • Issue date Oct 15, 1974
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3796050

    • Patent number 3,796,050
    • Issue date Mar 12, 1974
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3727519

    • Patent number 3,727,519
    • Issue date Apr 17, 1973
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3718027

    • Patent number 3,718,027
    • Issue date Feb 27, 1973
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3657917

    • Patent number 3,657,917
    • Issue date Apr 25, 1972
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    3601988

    • Patent number 3,601,988
    • Issue date Aug 31, 1971
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents