Multiple piston

Patents Grantslast 30 patents

  • Information Patent Grant

    Door actuator

    • Patent number 9,181,744
    • Issue date Nov 10, 2015
    • DORMA GmbH + Co. KG
    • Thomas Salutzki
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Automatic door closure unit

    • Patent number 8,677,561
    • Issue date Mar 25, 2014
    • Saeng Yoon Woo
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Hydraulic door closure apparatus with boost

    • Patent number 8,613,126
    • Issue date Dec 24, 2013
    • William Edward Blockley
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Adjustable hinged door closer

    • Patent number 8,181,311
    • Issue date May 22, 2012
    • Heng Kuo Co., Ltd.
    • Chi-Tsao Chiang
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Flow damper for drawer

    • Patent number 8,047,343
    • Issue date Nov 1, 2011
    • KV IP Holdings Ltd
    • Yung-Liang Chen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Door closer

    • Patent number 7,356,878
    • Issue date Apr 15, 2008
    • Samuel Heath & Sons PLC
    • Keith Foster
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Continuously blockable arresting device

    • Patent number 7,331,435
    • Issue date Feb 19, 2008
    • Stabilus GmbH
    • Rolf Mintgen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Door closer

    • Patent number 7,003,847
    • Issue date Feb 28, 2006
    • Jebron Limited
    • Peter Edward Brown
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Door closer

    • Patent number 6,886,217
    • Issue date May 3, 2005
    • Samuel Heath & Sons PLC
    • Keith Foster
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Door closers

    • Patent number 6,625,847
    • Issue date Sep 30, 2003
    • Samuel Heath & Sons PLC
    • Barrie Jones
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Door closer

    • Patent number 6,493,904
    • Issue date Dec 17, 2002
    • Heng Kuo Co., Ltd.
    • Chi-Tsao Chiang
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Hold open control for a door closer

    • Patent number 5,829,097
    • Issue date Nov 3, 1998
    • Jackson Corporation
    • George F. Toledo
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Door stop, in particular for motor vehicle doors

    • Patent number 5,586,361
    • Issue date Dec 24, 1996
    • Ed. Scharwachter GmbH & Co. KG
    • Karl-Heinz T olle
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Overhead door closer with slide rail for concealed installation in...

    • Patent number 5,417,013
    • Issue date May 23, 1995
    • Dorma GmbH + Co. KG
    • Horst Tillmann
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Damper and method of controlling a door

    • Patent number 5,291,630
    • Issue date Mar 8, 1994
    • Jebron Limited
    • Peter E. Brown
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Overhead concealed door closer, mechanically, hydraulically operated

    • Patent number 5,272,787
    • Issue date Dec 28, 1993
    • Mike Salena
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Door check

    • Patent number 4,785,493
    • Issue date Nov 22, 1988
    • Dorma-Baubeschlag GmbH & Co. KG.
    • Horst Tillmann
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Hydraulic device

    • Patent number 4,775,037
    • Issue date Oct 4, 1988
    • Vaxjo-Protes AB
    • Karl-Erik Stenberg
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Hydraulic device

    • Patent number 4,662,486
    • Issue date May 5, 1987
    • Vaxjo-Protes AB
    • Karl-Erik Stenberg
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Door check

    • Patent number 4,658,468
    • Issue date Apr 21, 1987
    • Dorma-Baubeschlag GmbH & Co. KG.
    • Horst Tillmann
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Door operating apparatus

    • Patent number 4,489,640
    • Issue date Dec 25, 1984
    • American Standard Inc.
    • Paul E. Olson
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Automatic door closer

    • Patent number 4,483,043
    • Issue date Nov 20, 1984
    • Dorma-Baubechlag GmbH & Co. KG
    • Horst Tillmann
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Door closer having a braking mechanism comprising an elastomeric bag

    • Patent number 4,455,708
    • Issue date Jun 26, 1984
    • Paumellerie Electrique
    • Gerard Saigne
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Door closer and holder

    • Patent number 4,414,703
    • Issue date Nov 15, 1983
    • Schlage Lock Company
    • Raymond H. Schnarr
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Automatic door closer

    • Patent number 4,376,323
    • Issue date Mar 15, 1983
    • Dorma-Baubeschlag GmbH & Co. KG
    • Horst Tillmann
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Counterbalance mechanism

    • Patent number 4,178,655
    • Issue date Dec 18, 1979
    • Weber-Knapp Company
    • Carl H. Little
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Door closer

    • Patent number 4,080,687
    • Issue date Mar 28, 1978
    • Dorma-Baubeschlag GmbH & Co. KG
    • Dietrich Jentsch
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Door hinge mechanism

    • Patent number 4,068,344
    • Issue date Jan 17, 1978
    • Chiyo Okabe
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    3887961

    • Patent number 3,887,961
    • Issue date Jun 10, 1975
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    3255482

    • Patent number 3,255,482
    • Issue date Jun 14, 1966
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

  • Information Patent Application

    Door Actuator

    • Publication number 20140366319
    • Publication date Dec 18, 2014
    • Thomas Salutzki
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    ADJUSTABLE DOOR CLOSER

    • Publication number 20140331449
    • Publication date Nov 13, 2014
    • HENG KUO Co., Ltd.
    • Hui-Chen Chang
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    HYDRAULIC DOOR CLOSURE APPARATUS WITH BOOST

    • Publication number 20130086771
    • Publication date Apr 11, 2013
    • William Edward Blockley
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    DAMPER POSITION ADJUSTING DEVICE

    • Publication number 20120181124
    • Publication date Jul 19, 2012
    • Sugatsune Kogyo Co., Ltd.
    • Koushi Yamaguchi
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    AUTOMATIC DOOR CLOSURE UNIT

    • Publication number 20120144623
    • Publication date Jun 14, 2012
    • Saeng Yoon Woo
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    DISHWASHER WITH A DAMPING DEVICE AND METHOD FOR PRODUCING A DAMPING...

    • Publication number 20110297193
    • Publication date Dec 8, 2011
    • BSH Bosch und Siemens Hausgerate GmbH
    • Franz Kiechle
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    ADJUSTABLE HINGED DOOR CLOSER

    • Publication number 20110030167
    • Publication date Feb 10, 2011
    • HENG KUO Co., Ltd.
    • Chi-Tsao Chiang
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    Door closer

    • Publication number 20050273975
    • Publication date Dec 15, 2005
    • Samuel Heath & Sons PLC
    • Keith Foster
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    Continuously blockable arresting device

    • Publication number 20040151599
    • Publication date Aug 5, 2004
    • Stabilus GmbH
    • Rolf Mintgen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Door closer

    • Publication number 20040111831
    • Publication date Jun 17, 2004
    • Keith Foster
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    Door closer

    • Publication number 20030093872
    • Publication date May 22, 2003
    • Jebron Limited
    • Peter Edward Brown
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES