Patents by Inventor Alan E. Varker

Alan E. Varker 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: 4433063
    Abstract: A hydrogen sorbent composition is provided which is comprised of a hydridable material such as LaNi.sub.5 encradled throughout a porous, fiber-containing polymeric composition.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: February 21, 1984
    Assignee: MPD Technology Corporation
    Inventors: Philip Bernstein, James P. Coffey, Alan E. Varker, John T. Arms, William D. K. Clark, Paul D. Goodell
  • Patent number: 4396693
    Abstract: An improvement in the production of polymer-bonded cell electrodes comprises forming a particulate material which can be developed into a shaped polymeric system comprising an electrode active material encradled in a porous, fiber-containing, polymeric composition. In a preferred embodiment, the polymeric system is developed as a thin, flexible electrode.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: August 2, 1983
    Assignee: MPD Technology Corporation
    Inventors: Philip Bernstein, James P. Coffey, Alan E. Varker, John T. Arms, William D. K. Clark
  • Patent number: 4385019
    Abstract: A process is provided for forming a polymeric material which can be developed into a shaped polymeric structure comprising an active material encradled in a porous, fiber-containing polymeric composition. In the process, the active material is mixed with a tripartite system comprising a fibrillatable polymer, a support-contributing polymer and a pore-former. When such a system is mixed and developed with an active material, such as LaNi.sub.5, an active composition is produced which may be used, for example, as a hydrogen collecting or storing material.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: May 24, 1983
    Assignee: MPD Technology Corporation
    Inventors: Philip Bernstein, James P. Coffey, Alan E. Varker, John T. Arms, William D. K. Clark, Paul D. Goodell
  • Patent number: 4358396
    Abstract: A particulate catalyst composition is provided by processing components in standard polymer processing equipment to obtain catalyst particles encradled in a porous, fiber-containing polymeric material.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: November 9, 1982
    Assignee: MPD Technology Corporation
    Inventors: Philip Bernstein, James P. Coffey, Alan E. Varker, John T. Arms, William D. K. Clark, Paul D. Goodell
  • Patent number: 4332698
    Abstract: A catalyst composition is provided as a thin flexible sheet in standard polymer processing equipment. The catalyst is comprised of catalyst particles encradled in a porous, fiber-containing polymeric material.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: June 1, 1982
    Assignee: MPD Technology Corporation
    Inventors: Philip Bernstein, James P. Coffey, Alan E. Varker, John T. Arms, William D. K. Clark, Paul D. Goodell
  • Patent number: 4320185
    Abstract: An improvement in the production of polymer-bonded cell electrodes comprises forming a particulate material which can be developed into a shaped polymeric system comprising an electrode active material encradled in a porous, fiber-containing, polymeric composition. In a preferred embodiment, the polymeric system is developed as a thin, flexible electrode.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: March 16, 1982
    Assignee: MPD Technology Corporation
    Inventors: Philip Bernstein, James P. Coffey, Alan E. Varker, John T. Arms, William D. K. Clark
  • Patent number: 4253927
    Abstract: A material useful as a separator in batteries and a process for making the material is provided. This material is a polyolefin having grafted to it side chains derived from an ethylenically unsaturated ionogenic monomer and cross-linked with sulfur.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: March 3, 1981
    Assignee: ESB Inc.
    Inventors: Philip Bernstein, James P. Coffey, Alan E. Varker
  • Patent number: 4206275
    Abstract: A material useful as a separator in batteries and a process for making the material is provided. This material is a polyolefin having grafted to it side chains derived from an ethylenically unsaturated ionogenic monomer and cross-linked with sulfur.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: June 3, 1980
    Assignee: ESB Incorporated
    Inventors: Philip Bernstein, James P. Coffey, Alan E. Varker
  • Patent number: 4131637
    Abstract: A process for preparing a polymeric material grafted throughout its bulk is provided. A polymer having finely divided particles is blended with silica and maintained in a fluidized bed. The polymer is activated by passing ozone uniformly through the blend to initiate incipient labile sites in the molecular structure of the polymer. The polymer is then reacted with an ethylenically unsaturated ionogenic monomer to graft polymerize the monomer onto the polymer. The grafted polymer may then be converted to a salt form by reacting with alkaline compounds. The resultant powders can be fused into any desired shape by conventional polymer plastic processes.
    Type: Grant
    Filed: March 23, 1977
    Date of Patent: December 26, 1978
    Assignee: ESB Incorporated
    Inventors: Philip Bernstein, James P. Coffey, Alan E. Varker
  • Patent number: 4122133
    Abstract: A material useful as a separator in batteries and a process for making the material is provided. This material is a polyolefin having grafted to it side chains derived from an ethylenically unsaturated ionogenic monomer and cross-linked with sulfur.
    Type: Grant
    Filed: March 23, 1977
    Date of Patent: October 24, 1978
    Assignee: ESB Incorporated
    Inventors: Philip Bernstein, James P. Coffey, Alan E. Varker