Patents by Inventor Michael J. Wates

Michael J. Wates 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).

  • Compressed air lubricators
    Patent number: 5937970
    Abstract: A flow sensor of the disc type for a compressed air lubricator comprises a flexible elastomeric disc having a pair of radial channels formed in each of its major surfaces. The channels afford lines of weakness which enable the disc readily and progressively to deform into a fluted cone-like configuration as the air flow rate through the lubricator increases, thereby increasing the potential air flow capacity of the lubricator compared to those including known designs of disc type flow sensor.
    Type: Grant
    Filed: September 4, 1997
    Date of Patent: August 17, 1999
    Assignee: IMI Norgren Limited
    Inventor: Michael J Wates
  • Nitrogen/carbon dioxide mixing valves
    Patent number: 4827965
    Abstract: N.sub.2 and CO.sub.2 are admitted, through separate valves actuated by single high hysteresis actuator, into a mixing device when the mixture is fed to a beer keg. The actuator is dependant upon the relative Co.sub.2 N.sub.2 mixture pressures so as to maintain the mixture pressure within predetermined limits and in one embodiment the use of a venturi mixing device ensures that the mixture composition remains substantially constant when the N.sub.2 and CO.sub.2 gases are at substantially different pressure.
    Type: Grant
    Filed: August 12, 1987
    Date of Patent: May 9, 1989
    Assignee: Norgren Martonair Limited
    Inventor: Michael J. Wates