Patents by Inventor Heinz Hammer

Heinz Hammer 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).

  • Process for the production of a weld joint and conveying and storage containers produced according to this process for burned out nuclear fuel cartridges
    Patent number: 6187395
    Abstract: The invention relates to a process for the production of a welded joint for at least three components of a multiple butt joint. In order to create the welded joint in the multiple butt-joint by welding from one side only, and to allow components to be fitted very securely to the completely covered face, the multiple butt-joint is created in such a way that at least a first and second of these components which can be welded together are positioned with a gap along their common seam; both the said components are provided with a recess in the region of the seam, said recess being bounded by both components in the direction of shrinkage at opposing surfaces; the abutting end of the third component is inserted into the recess where it fits positively; and once this jointing process is completed, the first and second components are joined by a weld seam. It is proposed that the process should be used in the production of a transport and storage container for spent nuclear fuel holders.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: February 13, 2001
    Assignee: GNB-Gesellschaft fur Nuklear-Behalter mbH
    Inventors: Hans-Jurgen Canzler, Heinz Hammer, Reiner Laug, Werner Botzem
  • Preparation of arylbenzylamines
    Patent number: 5536877
    Abstract: A process for the preparation of arylbenzylamines by the reaction of arylamines with a benzyl chloride, wherein the reaction is carried out in the presence of both a phase-transfer catalyst and a base selected from the group consisting of the inorganic bases and salts of weak organic acids.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl-Heinz Hammer, Gerd Husslein
  • Process for the preparation of oligomeric 2,2,4-trimethyl-1,2-dihydroquinoline
    Patent number: 4897482
    Abstract: Oligomeric 2,2,4-trimethyl-1,2-dihydroquinoline (TMQ) is prepared from monomeric TMQ by heating the latter in the presence of a polybasic aliphatic carboxylic acid and in the presence of small amounts of water.
    Type: Grant
    Filed: May 31, 1989
    Date of Patent: January 30, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Manfred Blazejak, Karl J. Wemmje, Heinz Hammer
  • Process for the foaming of thermoplastics containing ester and/or carbonate groups
    Patent number: 4728673
    Abstract: The present invention relates to the use of combinations of specific compounds as blowing agent combinations for thermoplastics containing ester and/or carbonate groups, a process for the foaming of these thermoplastics, and the foams obtained by the process according to the invention.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: March 1, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinz Hammer, Klaus Kircher
  • Aliphatic polyesters containing sulphur, and their use as stabilizers for polymers
    Patent number: 4699972
    Abstract: Aliphatic polyesters containing sulphur, which contain the sulphur as structural units in the form of sulphide or disulphide groups in both the acid component and the diol component, a process for the preparation of these polyesters, and also polymers containing these polyesters.
    Type: Grant
    Filed: August 22, 1986
    Date of Patent: October 13, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinz Hammer, Herbert Eichenauer, Ernst Roos, Eberhard Jurgens
  • Process for foaming thermoplastic aromatic polycarbonates
    Patent number: 4567210
    Abstract: The present invention relates to a process for foaming thermoplastic aromatic polycarbonates, 2-phenyl-1-oxa-3,4-diazol-5-ones acylated in the 4-position being used in combination with cyanuric acid.
    Type: Grant
    Filed: February 4, 1985
    Date of Patent: January 28, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinz Hammer, Klaus Kircher, Rolf-Volker Meyer