Patents by Inventor John A. Broadhurst

John A. Broadhurst 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: 5025641
    Abstract: An apparatus and method of making extremely pure high quality flake ice, said apparatus having a frame manufactured completely of a food grade polyethylene thermal plastic material with slidably mounted hydrostatic distributor, slidably mounted freezing plates and, ice slides which direct the ice into an ice conveyor means for removing the ice from within the frame work of the apparatus, the method includes running a freon gas/liquid mixture into the freezing plates, ice making water being introduced into the system flowing onto freezing plates, the ice shavings and meltings from manufacturing the ice are being combined with tap water and recirculated for use in making additional ice, the refrigerant is pumped into the plates through a compressor, boiled off inside the plates such that a combined liquid/vapor mixture falls from the plates through a section header, excess liquid is then dumped into an accumulated, the refrigerant vapor is drawn off the top of the accumulator and in turn is transported to the c
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: June 25, 1991
    Inventor: John A. Broadhurst