Patents by Inventor Kenneth Madden

Kenneth Madden has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8210499
    Abstract: A ball valve and ball valve actuator including a unique valve stem seal and mounting connection between the ball valve and actuator. The stem seal design reduces leakage issues and significantly lengthens the life span of the ball valve and actuator and the mounting connection between the actuator. The ball valve maintains the centrality of the valve stem in connection with the actuator pinion and minimizes torque and shear forces transferred to the valve stem and hence the stem seal itself.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: July 3, 2012
    Assignee: Gemini Valve
    Inventors: Kenneth Madden, Daniel Harris
  • Publication number: 20090321674
    Abstract: A ball valve and ball valve actuator including a unique valve stem seal and mounting connection between the ball valve and actuator. The stem seal design reduces leakage issues and significantly lengthens the life span of the ball valve and actuator and the mounting connection between the actuator. The ball valve maintains the centrality of the valve stem in connection with the actuator pinion and minimizes torque and shear forces transferred to the valve stem and hence the stem seal itself.
    Type: Application
    Filed: June 26, 2008
    Publication date: December 31, 2009
    Applicant: GEMINI VALVE
    Inventors: Kenneth MADDEN, Daniel HARRIS
  • Publication number: 20070215825
    Abstract: An improved power actuated valve, particularly a ball valve, which can be manually opened or closed quickly, in the event of failure of power operation, by manual turning force applied directly to the control stem of the valve without the necessity to overcome any drag or negative torque imposed by the power operating mechanism and speed reducing transmission.
    Type: Application
    Filed: February 9, 2007
    Publication date: September 20, 2007
    Inventor: Kenneth Madden
  • Patent number: 7040670
    Abstract: The present invention relates to an alternative pipe coupling apparatus, to conventional tapered screw threads usually used to join ends of pipe sections to fixtures. The invention utilizes a bayonet style interlocking arrangement having a male element and a female element which join together and are opposingly biased against one another by a spring-like retaining ring to ensure an appropriate rigid and leak-proof connection between two elements.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: May 9, 2006
    Assignee: Parker & Harper Companies, Inc.
    Inventor: Kenneth Madden
  • Publication number: 20050127669
    Abstract: The present invention relates to an alternative pipe coupling apparatus, to conventional tapered screw threads usually used to join ends of pipe sections to fixtures. The invention utilizes a bayonet style interlocking arrangement having a male element and a female element which join together and are opposingly biased against one another by a spring-like retaining ring to ensure an appropriate rigid and leak-proof connection between two elements.
    Type: Application
    Filed: December 11, 2003
    Publication date: June 16, 2005
    Inventor: Kenneth Madden
  • Patent number: 5772177
    Abstract: An improved latch mechanism for a fluid flow control valve. The latch mechanism having a latch body, a spring, a plunger and a thumb release lever for disengagement of the plunger. The latch mechanism is attached to a valve handle which controls the fluid flow rate through the valve. Provided with the latch, the handle and thereby the valve can be locked into either a closed or open position at the limits of the valves' necessary rotation thereby preventing inadvertent opening or closing of the valve. The thumb release lever disengages the plunger with detent notches provided in the valve body allowing safe and efficient single handed operation of the handle and latch mechanism even under adverse environmental conditions when operator dexterity is impaired by gloves.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: June 30, 1998
    Assignee: Parker & Harper Companies, Inc.
    Inventors: David G. Holloway, Kenneth Madden, Roger Massey
  • Patent number: D894447
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: August 25, 2020
    Assignee: CIRO, LLC
    Inventor: Kenneth Madden
  • Patent number: D906185
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: December 29, 2020
    Assignee: CIRO, LLC
    Inventor: Kenneth Madden