Patents by Inventor Herbert A. Volz

Herbert A. Volz 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: 4450904
    Abstract: An improved heat exchanger in which the tube bundle therein comprises a plurality of tubes supported intermediate their ends by at least one annular enlargement disposed around and frictionally secured to the outer surface of at least one of the tubes with the annular enlargement contacting the outer surface of each tube next adjacent thereto. Means are also provided for encircling and maintaining the tubes in spaced relation in contact with the annular enlargements. Method of constructing the tube bundle for the heat exchanger is also disclosed.
    Type: Grant
    Filed: March 31, 1978
    Date of Patent: May 29, 1984
    Assignee: Phillips Petroleum Company
    Inventor: Herbert A. Volz
  • Patent number: 4386456
    Abstract: An improved heat exchanger in which the tube bundle therein comprises a plurality of tubes supported intermediate their ends by at least one annular enlargement disposed around and frictionally secured to the outer surface of at least one of the tubes with the annular enlargement contacting the outer surface of each tube next adjacent thereto. Means are also provided for encircling and maintaining the tubes in spaced relation in contact with the annular enlargements. Method of constructing the tube bundle for the heat exchanger is also disclosed.
    Type: Grant
    Filed: October 7, 1980
    Date of Patent: June 7, 1983
    Assignee: Phillips Petroleum Company
    Inventor: Herbert A. Volz
  • Patent number: 4044833
    Abstract: Subterranean formations are fractured by means of an acid foam which can contain propping materials.
    Type: Grant
    Filed: June 8, 1976
    Date of Patent: August 30, 1977
    Assignee: Phillips Petroleum Company
    Inventor: Herbert A. Volz
  • Patent number: 3939662
    Abstract: Liquid impervious surface structures are formed by permeating a fabric and a portion of an earthen foundation with an aqueous gel wherein the permeated earthen foundation is covered by the permeated fabric.
    Type: Grant
    Filed: December 12, 1973
    Date of Patent: February 24, 1976
    Assignee: Phillips Petroleum Company
    Inventor: Herbert A. Volz