Patents by Inventor Micah L. Digman

Micah L. Digman 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).

  • TWO-STAGE AIR POWERED PUMP
    Publication number: 20090169401
    Abstract: A two-stage air powered hydraulic pump has a portion of the air pressure that operates the pump diverted directly to the reservoir. The air pressure on the reservoir presses hydraulic fluid in the reservoir out of the reservoir, through the pumping chamber and to the load to quickly advance the load under low load conditions and to pre-charge the pumping chamber.
    Type: Application
    Filed: March 26, 2007
    Publication date: July 2, 2009
    Inventor: Micah L. Digman
  • Hydraulic staging jack
    Patent number: 6155536
    Abstract: A hydraulic staging jack has a circumferentially grooved cylinder which fits into a base in which two shoes are seated and each shoe has two axially spaced flanges which engage in two axially spaced grooves of the cylinder. Radially outer surfaces of the shoes are axially angled so that moving the shoes axially out of the base causes the shoes to separate radially, thereby disengaging the flanges from the grooves and permitting adjustable axial fixing of the position of the cylinder relative to the base.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: December 5, 2000
    Assignee: Applied Power Inc.
    Inventor: Micah L. Digman
  • Tire bead breaker
    Patent number: D465392
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: November 12, 2002
    Assignee: Actuant Corporation
    Inventor: Micah L. Digman
  • Jaw pivot member for a tire bead breaker
    Patent number: D465708
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: November 19, 2002
    Assignee: Actuant Corporation
    Inventor: Micah L. Digman