Patents by Inventor Kent P. Hand

Kent P. Hand 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).

  • Publication number: 20210374687
    Abstract: Systems and methods for adaptive preventative maintenance are disclosed. In a method to determine a maintenance interval estimate for equipment, a first maintenance interval estimate associated with the equipment is provided. The first maintenance interval estimate is expressed according to a usage metric associated with the equipment. An indication that the equipment has been replaced may be received. An elapsed usage of the equipment in a time period may be determined. The time period may span from a reference time point associated with the first maintenance interval estimate to a later replacement time point associated with the replacement of the equipment. A second maintenance interval estimate may be determined based on the elapsed usage of the equipment. The second maintenance interval estimate may be expressed according to the usage metric associated with the equipment.
    Type: Application
    Filed: October 26, 2018
    Publication date: December 2, 2021
    Inventors: Kent P. Hand, Laurence Saidman, Peter W. Estelle, James Beal, Jeremy A. Stone
  • Patent number: 5860794
    Abstract: An air operated double diaphragm pump is provided with an air valve assembly which allows the valve cup to move in a rectangular pattern.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: January 19, 1999
    Assignee: Graco Inc
    Inventors: Kent P. Hand, Ann C. Feitel, Joel T. Fisher, Harold D. Johnson, Graig D. Burt
  • Patent number: 5366353
    Abstract: The air valve on a reciprocating pneumatic pump bleeds air from the pressurized air chamber into the exhaust port through a hole in the valve cup in order to warm the exhaust port area and prevent ice build up in the area. Such construction is also suited for use in spool valves.
    Type: Grant
    Filed: April 13, 1994
    Date of Patent: November 22, 1994
    Inventor: Kent P. Hand
  • Patent number: D372034
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: July 23, 1996
    Assignee: Graco Inc.
    Inventors: James J. Handzel, Kent P. Hand, Bradley K. Voigt, Scott C. Losey