Patents by Inventor Mark A. Novak

Mark A. Novak 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).

  • Check valve having a friction free replaceable valve insert check assembly
    Patent number: 9885422
    Abstract: A check valve has a friction-free replaceable valve insert check assembly. The check assembly includes a poppet on which a spring is mounted engaging an axially moveable seat which in turn engages a seat on the inner end of the poppet biased into engagement by the spring. Upon separation of the inner and outer valve bodies the insert check assembly will freely separate from the valve body for inspection or replacement.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: February 6, 2018
    Assignee: International Valve Corporation
    Inventors: Steven Driscoll, Brian Strait, Mark A. Novak, Jason Marquardt
  • CHECK VALVE HAVING A FRICTION FREE REPLACEABLE VALVE INSERT CHECK ASSEMBLY
    Publication number: 20170167619
    Abstract: A check valve has a friction-free replaceable valve insert check assembly. The check assembly includes a poppet on which a spring is mounted engaging an axially moveable seat which in turn engages a seat on the inner end of the poppet biased into engagement by the spring. Upon separation of the inner and outer valve bodies the insert check assembly will freely separate from the valve body for inspection or replacement.
    Type: Application
    Filed: December 15, 2015
    Publication date: June 15, 2017
    Inventors: STEVEN DRISCOLL, BRIAN STRAIT, MARK A. NOVAK, JASON MARQUARDT
  • Check valve
    Patent number: 6152171
    Abstract: A check valve is positioned in and between opposed tube ends and includes a valve body having a valve seat engageable by a valve element having a stem extending centrally of peripherally spaced apart elements interconnected by an annular end shoulder engaged by a keeper which receives the outer end of the valve stem and holds a coil spring against the valve element. The valve assembly is disassembled by manipulating the keeper against the spring out of engagement with the annular end shoulder.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: November 28, 2000
    Assignee: International Valve Corp.
    Inventors: DeLaun T. Messick, Mark A. Novak
  • Check valve
    Patent number: 6039073
    Abstract: A check valve is positioned in and between opposed tube ends and includes a valve body having a valve seat engageable by a valve element having a stem extending centrally of peripherally spaced apart elements interconnected by an annular end shoulder engaged by a keeper which receives the outer end of the valve stem and holds a coil spring against the valve element. The valve assembly is disassembled by manipulating the keeper against the spring out of engagement with the annular end shoulder.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: March 21, 2000
    Assignee: International Valve Corporation
    Inventors: DeLaun T. Messick, Mark A. Novak