Patents by Inventor Heinz Kalberer

Heinz Kalberer 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: 4353940
    Abstract: A process is disclosed for coating the inside surface of a length of tubing comprising the steps of forming at least one loop of tubing with a downwardly inclined portion and an upwardly inclined portion; filling the cavity of the tubing forming the loop with a coating liquid; transporting the tubing along its longitudinal axis in a substantially vertically upward direction to coat the inside of the tubing above the level of the coating liquid with an initial layer of coating liquid; constricting the tubing adjacent to and above the level of the coating liquid along a constriction zone transverse to the longitudinal axis of the tubing, the constriction zone progressively diminishing in width in the direction of travel of the tubing to reduce the thickness of the initial layer and form a thin layer of desired thickness on the inside of the tubing issuing from the constriction zone; filling the cavity of the tubing issuing from the metering device with support gas; and exposing the tubing to heat at a sufficien
    Type: Grant
    Filed: March 26, 1981
    Date of Patent: October 12, 1982
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Reinhold Becker, Heinz Kalberer, Richard Regner
  • Patent number: 4353939
    Abstract: Disclosed is a process for coating the inside of a length of tubing comprising the steps of forming at least one loop of tubing with a downwardly inclined portion and an upwardly inclined portion; filling the cavity of the tubing forming the loop with a coating liquid; transporting the tubing along its longitudinal axis in a substantially vertically upward direction to coat the inside surface of the tubing above the level of the coating liquid with an initial layer of coating liquid; constricting the tubing adjacent to and above the level of the coating liquid with a metering device having a constriction zone which flattens a portion of the tubing passing therethrough to substantially eliminate all of the initial layer thereon and partially flattens the remaining portion of the tubing to allow a desired quantity of coating liquid to remain on the tubing issuing from the constriction zone; filling the cavity of the tubing issuing from the constriction zone with support gas; and, exposing the tubing to the acti
    Type: Grant
    Filed: March 26, 1981
    Date of Patent: October 12, 1982
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Reinhold Becker, Heinz Kalberer, Richard Regner
  • Patent number: 4232128
    Abstract: A porous shaped article, especially a flat shaped sponge like article, in particular a sponge cloth, is disclosed which exhibits an improved cleaning effect and which comprises cellulose hydrate and from about 10 to about 80% by weight of polyolefin fibrids.
    Type: Grant
    Filed: December 15, 1977
    Date of Patent: November 4, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang Michel, Heinz Kalberer
  • Patent number: 4198968
    Abstract: A porous shaped article adapted for medicinal use is disclosed which comprises a porous regenerated cellulose the entire surface of which is covered with a coating comprising a hydrophilizingly effective amount of at least one wetting agent and a substantially water insoluble chemically modified cellulose ether which is crosslinked carboxymethylcellulose or a reaction product of a partially etherified cellulose and a chemical modifying agent which is capable of reacting with the free hydroxy groups of the etherified cellulose.The articles are coated by first impregnating same with a cellulose ether solution and then treating the impregnated article with a solution of the modifying agent. The wetting agent may be added to either of these steps.The coated articles retain a high absorption capacity for liquids, yet do not release any substantial amounts of turbidifying impurities into a surrounding liquid and therefore are especially suited for medical uses.
    Type: Grant
    Filed: February 16, 1978
    Date of Patent: April 22, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Heinz Kalberer, Heinrich Fauth