Patents by Inventor Walter C. Belcher

Walter C. Belcher 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: 5248218
    Abstract: A snake cleanable fluid flow system is provided which incorporates a first fitting in the form of a clean-out pipe and a second fitting in the form of a baffled tee. The two fittings may be formed integrally. The clean-out pipe is in the form of a tee with the leg of the tee being divided by an interior partition into first and second fluid passageways. The crossbar of the tee is also longitudinally bisected by a partition to form second and third fluid passageways. The partitions are disposed at right angles to each other so that the first and second fluid passageways are in communication with both the third and fourth fluid passageways. A snake may be selectively directed down various paths formed by the four fluid passageways. The baffled tee fitting has a baffle which will divert a snake out either end of its crossbars.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: September 28, 1993
    Inventor: Walter C. Belcher
  • Patent number: 5056176
    Abstract: Rotary drain cleaning apparatus includes a synthetic polymeric cutter blade adapted to be mounted onto a drain cleaning cable fabricated from, or coated with, a synthetic polymeric material. Use of such a cutter and cable avoids damage to polymeric drain lines during a cleaning operation.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: October 15, 1991
    Inventor: Walter C. Belcher
  • Patent number: 4391551
    Abstract: A snake cleanable fluid flow system is provided which incorporates a first fitting in the form of a clean-out elbow and a second fitting in the form of a tee. Each of the fittings have a first passageway open at each end and a second passageway intersecting the first passageway. The clean-out elbow is provided with a baffle which selectively directs a snake inserted in its second passageway into a predetermined end of the first passageway. The tee also has a baffle which diverts a snake inserted into either end of its first passageway into its second passageway. The tee and clean-out elbow are connected by a pipe and a partitioned pipe is connected to the second passageway of the clean-out elbow so as to facilitate insertion of a snake. The baffles facilitate cleaning the fluid flow system by deflecting the snake inserted in the clean-out elbow and tee.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: July 5, 1983
    Assignees: Walter C. Belcher, Gloria Jeanne Belcher
    Inventor: Walter C. Belcher