Patents by Inventor Ralph Kulin

Ralph Kulin 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: 4503333
    Abstract: A connector valve for selectively permitting the transfer of fluids therethrough is described. Multiple-way valve means communicates with a plurality of conduits and selectively permits and prevents flow between the conduits. The multiple-way valve means comprises outer walls made of a substantially ultraviolet-transmissive material, with the outer walls of the multiple-way valve means preferably enclosing an elastomeric seal member defining rotatable channel means for communication with differing conduits at differing rotational positions, and also providing a rotatable seal against inner surfaces of the outer walls to maintain an antimicrobial seal of said conduits. The channel means is exposed along its entire length to an inner surface of an outer wall, to facilitate the anitmicrobial effect of ultraviolet radiation. Also, a novel method of practicing continuous ambulatory peritoneal dialysis, and an ultraviolet light applicator, is disclosed.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: March 5, 1985
    Assignee: Baxter Travenol Laboratories
    Inventors: Ralph Kulin, Jack W. Moncrief, Robert P. Popovich, Ronald C. Stauber
  • Patent number: 4500788
    Abstract: Apparatus for automatically connecting and disconnecting a pair of connectors includes first and second relatively movable means to carry the connectors and to move them back and forth between connected and disconnected positions. Rack and gear means may be used having a variable mechanical advantage at different positions to facilitate connection and disconnection of the connectors. The apparatus may also have means for providing radiation for antibacterial effect on the connectors, typically ultraviolet radiation.
    Type: Grant
    Filed: August 19, 1983
    Date of Patent: February 19, 1985
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: Ralph Kulin, Daniel B. Granzow, Brant R. Danielsen
  • Patent number: 4412834
    Abstract: A connector valve for selectively permitting the transfer of fluids therethrough is described. Multiple-way valve means communicates with a plurality of conduits and selectively permits and prevents flow between the conduits. The multiple-way valve means comprises outer walls made of a substantially ultraviolet-transmissive material, with the outer walls of the multiple-way valve means preferably enclosing an elastomeric seal member defining rotatable channel means for communication with differing conduits at differing rotational positions, and also providing a rotatable seal against inner surfaces of the outer walls to maintain an antimicrobial seal of said conduits. The channel means is exposed along its entire length to an inner surface of an outer wall, to facilitate the antimicrobial effect of ultraviolet radiation. Also, a novel method of practicing continuous ambulatory peritoneal dialysis, and an ultraviolet light applicator, is disclosed.
    Type: Grant
    Filed: June 5, 1981
    Date of Patent: November 1, 1983
    Assignee: Baxter Travenol Laboratories
    Inventors: Ralph Kulin, Jack W. Moncrief, Robert P. Popovich, Ronald C. Stauber
  • Patent number: 4295619
    Abstract: A solution container hanger for use in infusion or drain of a solution from a patient, foldable for storage or transportation. The hanger comprises two basic parts: a first member and a second member rotationally affixed to the first member to enable the hanger to be placed in an infusion, drain, or storage position. Hanger means are attached to the second member to enable the solution container hanger to be hung from a door or other elevated structure for infusion of a solution. Support means are attached to the first and second members from which a solution container is hung for infusion or drain. The first and second members are positioned substantially perpendicular in a drain position and substantially parallel in an infusion or storage position.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: October 20, 1981
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: Ralph Kulin, Ronald C. Stauber