Patents by Inventor Mark Wayne McCollough

Mark Wayne McCollough 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).

  • Shaft coupling and shifting mechanism for pneumatic pump
    Patent number: 6951163
    Abstract: Fluid pump assembly driven by a reciprocating piston, having an improved coupling between a driving shaft and a driven shaft and a fast-shifting switching mechanism for changing the direction of movement to the piston.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: October 4, 2005
    Assignee: Nordson Corporation
    Inventors: Mark Wayne McCollough, Jim Bachman, Anna Gilbert
  • Shaft coupling and shifting mechanism for pneumatic pump
    Patent number: 6868774
    Abstract: Fluid pump assembly driven by a reciprocating piston, having an improved coupling between a driving shaft and a driven shaft and a fast-shifting switching mechanism for changing the direction of movement of the piston.
    Type: Grant
    Filed: October 5, 2002
    Date of Patent: March 22, 2005
    Assignee: Nordson Corporation
    Inventors: Mark Wayne McCollough, Jim Bachman, Anna Gilbert
  • Shaft coupling and shifting mechanism for pneumatic pump
    Publication number: 20030068241
    Abstract: Fluid pump assembly driven by a reciprocating piston, having an improved coupling between a driving shaft and a driven shaft and a fast-shifting switching mechanism for changing the direction of movement of the piston.
    Type: Application
    Filed: October 5, 2002
    Publication date: April 10, 2003
    Inventors: Mark Wayne McCollough, Jim Bachman, Anna Gilbert