Patents by Inventor Richard E. Dundas

Richard E. Dundas 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).

  • Patent number: 4717036
    Abstract: A spill control device for underground liquid storage tanks having an upwardly extending fill pipe. The control device comprises a steel, epoxy coated, liquid collecting spill tank having a riser tube that extends upward through the tank bottom. A circular seal ring fits about the upper end of the riser tube and about the outer wall of a fill pipe received through the riser tube. A clamp compresses the seal about both the riser tube and fill pipe. A liquid impermeable cover is provided which covers the access opening in the top of the spill tank. A first basin surrounds the cover for channeling precipitation, and other liquids impinging the cover, away from the spill tank. A valve is disposed on the fill pipe for selectively directing liquids discharged into the spill tank into the storage tank. A second basin surrounds the spill tank for recovering liquids discharged from the spill tank during a filling operation.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: January 5, 1988
    Assignee: Plymouth Tank of West Michigan, Inc.
    Inventors: Richard E. Dundas, Gerald H. Visser
  • Patent number: 4527708
    Abstract: A spill control device for underground liquid storage tanks having an upwardly extending fill pipe. The control device comprises a steel, epoxy coated, liquid collecting spill tank having a riser tube that extends upward through the tank bottom. A circular seal ring fits about the upper end of the riser tube and about the outer wall of a fill pipe received through the riser tube. A clamp compresses the seal about both the riser tube and fill pipe.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: July 9, 1985
    Assignee: Plymouth Tank of West Michigan, Inc.
    Inventors: Richard E. Dundas, Gerald H. Visser