Patents by Inventor Mark C. Elmore

Mark C. Elmore 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).

  • Drainage enhancer for double seepage drains
    Patent number: 5216767
    Abstract: A device for improving the drainage through, and structural integrity of, a mortar bed of a shower floor. The device encircles a neck portion of a drain in the shower floor. The device is positioned between the mortar bed and drainage weep holes formed in the drain so that practically any water seepage through the mortar bed must pass through the device before entering the weep holes. The device has a greater porosity than that of the mortar bed and provides a larger drainage surface area of the mortar bed than that of the weep holes alone.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: June 8, 1993
    Inventor: Mark C. Elmore