Patents by Inventor Raymond F. Cracauer

Raymond F. Cracauer 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: 4734198
    Abstract: A system and process for preparation of dialysis solution from dry chemicals and water on a large scale batch basis. The required amount of water is metered into a dialysis solution tank. Water from the tank is pumped into a spray head which is positioned above a shipping drum containing predetermined amounts of chemicals. Water rains down on the chemicals dissolving and/or entraining the same and the resulting slurry is returned to the dialysate tank as a slurry by means of a pickup wand and suction source. The liquid and chemicals in the dialysis solution tank are continually cycled until all the chemicals in the drum have been removed. Typically, an additional drum containing other kinds of chemicals is then added to the dialysis solution tank in the same manner. Circulation of the solution is continued within the tank until a fully uniform solution results.
    Type: Grant
    Filed: February 6, 1984
    Date of Patent: March 29, 1988
    Assignee: Minntech Corporation
    Inventors: William H. Harm, Larry E. Fuller, Earnest R. Caine, Raymond F. Cracauer, Louis C. Cosentino, F. Jesus Martinez
  • Patent number: 4405320
    Abstract: Septum retaining means for an implantable tubular percutaneous device. The retaining means is a tubular stem insert having an integral pressure plate across an intermediate portion thereof. A modified septum fits into the insert below the pressure plate. Tabs extending outwardly from the upper edge of the insert cooperate with a grooved portion of a body exterior cavity in the T-stem to provide means for holding the insert in the T-stem cavity. Notches in the walls of the insert on either side of the tabs allow the wall portions containing the tabs to be flexed inwardly so as to permit the insert to be passed into and out of the T-stem. The insert is designed to permit a forceps or other crimping tool to obtain access to the tab containing insert wall portions for removal of the insert and septum.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: September 20, 1983
    Assignee: Renal Systems, Inc.
    Inventors: Raymond F. Cracauer, Larry E. Fuller, Felix J. Martinez, Louis C. Cosentino