Patents Assigned to Daniel A. Holt
  • Publication number: 20030217774
    Abstract: A fitting for engagement with a cylindrical compressed gas bottle. The fitting includes a valve for regulating gas between a regulated port of the body of the fitting and an outlet port of the body of the fitting. The body of the fitting is cylindrical and dimensioned to be hand held, the fitting includes a handle for pivotal engagement with the body, the handle to control the flow of gas from the outlet port.
    Type: Application
    Filed: May 23, 2002
    Publication date: November 27, 2003
    Applicant: Daniel Holt
    Inventors: Trevor K. Markham, Glen M. Arnott
  • Patent number: 5979496
    Abstract: A single piece housing with a floating gas sealing member in a gas communication channel between the two ends of the housing, for joining a high pressure gas port to a second gas port in gas sealing relation.
    Type: Grant
    Filed: January 2, 1998
    Date of Patent: November 9, 1999
    Assignee: Daniel A. Holt
    Inventor: Trevor K. Markham
  • Patent number: 5522421
    Abstract: A fluid pressure regulator capable of adjustably setting a cut-off pressure between an upper and a lower limit having a two-piece valve body where the two pieces are threadably joined such that adjusting the distance between the two pieces of the valve body moves a piston stem valve operating a high pressure port towards or away from the high pressure port while not changing the distance between the spring engaging the piston and the piston head.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: June 4, 1996
    Assignee: Daniel A. Holt
    Inventors: Daniel A. Holt, Trevor K. Markham
  • Patent number: 5411053
    Abstract: A fluid pressure regulator capable of adjustably setting a cut-off pressure between an upper and a lower limit having a two-piece valve body where the two pieces are threadably joined such that adjusting the distance between the two pieces of the valve body moves a piston stem valve operating a high pressure port towards or away from the high pressure port while not changing the distance between the spring engaging the piston and the piston head.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: May 2, 1995
    Assignee: Daniel A. Holt
    Inventors: Trevor K. Markham, Daniel A. Holt