Patents by Inventor William Heier

William Heier 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: 5093950
    Abstract: A self propelled vacuum driven swimming pool cleaner which has an outer cover or shroud which contains a vacuum driven motor connected to a reduction gear train, to rotate a brush assembly, that frictionally engages a surface to be cleaned, and propells the cleaner while scrubbing up and then vacuuming dirt and debris from the surface.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: March 10, 1992
    Inventor: William Heier
  • Patent number: 4195754
    Abstract: A slush dispenser having a container of flavored slush or the like is provided with first and second blades rotatable in opposite directions within the container by a single motor. The container and blades are removable without the need for tools to facilitate maintenance and cleaning.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: April 1, 1980
    Assignee: Refreshment Machinery Incorporated
    Inventor: William Heier
  • Patent number: 4168784
    Abstract: An adjustable, multi-product vending machine is disclosed which is capable of dispensing a large number of products in a relatively small space using a limited number of coin slides. The device is activated by one or more coin slides which may be of the multi-coin type and comprises a plurality of variable width product dispensing bins, each of which is equipped with a vend plate assembly for individual operation. The bins are easily adjustable in width to accommodate products of various sizes and one vend plate assembly is provided for each bin. An interlock system interacts with the plurality of vend plate assemblies to prevent dispensing more than one product during each operation of a coin slide.
    Type: Grant
    Filed: October 5, 1977
    Date of Patent: September 25, 1979
    Assignee: U-Seal-It Vending Co., Inc.
    Inventor: William Heier