Patents by Inventor James K. Leitch

James K. Leitch 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).

  • Apparatus for the submerged introduction of a fluid into a body of liquid
    Patent number: 4569805
    Abstract: A fluid supply pipe has uniformly spaced diffuser location holes arranged in a line along its length at each of which a saddle is secured to the pipe which includes changeable means for controlling the desired flowrate of fluid from the pipe to a diffuser. The saddle has a threaded connection with the diffuser so that the diffuser can be readily screwed onto or unscrewed from the saddle by hand. The plenum below the diffuser element has a self-draining feature.
    Type: Grant
    Filed: September 28, 1984
    Date of Patent: February 11, 1986
    Assignee: The Gray Engineering Group Inc.
    Inventors: Ross G. Hume, James K. Leitch
  • Stand and strap arrangement for supporting and securing pipes
    Patent number: 4445656
    Abstract: A stand and strap arrangement for supporting and securing pipes. The stand has arcuate arms to support the pipe and strap co-operates with the stand to snap into place to secure the pipe to the stand. The stand is secured to the floor and is adjustable with respect to the height in relation to the floor.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: May 1, 1984
    Inventors: James K. Leitch, Raymond C. Newman, Cameron B. Gray