Patents by Inventor Robert M. Van Becelaere

Robert M. Van Becelaere 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).

  • Vacuum relief door assembly
    Patent number: 4140151
    Abstract: A vacuum relief and access door assembly, for use on a duct downstream of a fire or control dampers, comprises a frame including a duct facing surface with a seal member thereon, a closure member having side edges in sealing engagement with the seal member, and removable retaining members mounted on the frame and resiliently urging the closure member into sealing engagement with the seal member, yielding to allow the closure member to displace toward the duct to allow air flow thereby for vacuum relief and returning into sealing engagement with the seal member.
    Type: Grant
    Filed: June 24, 1977
    Date of Patent: February 20, 1979
    Assignee: Ruskin Manufacturing Company
    Inventor: Robert M. Van Becelaere