Patents by Inventor Gilbert A. Zimmerman

Gilbert A. Zimmerman 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).

  • Sheet material shrinkage apparatus
    Patent number: 5233733
    Abstract: An exemplary sheet material shrinkage apparatus comprises an endless belt mounted on rotatable cylinders and disposed against a shrinkage cylinder, the belt comprising inward and outward elastomer layers having different elasticity properties.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: August 10, 1993
    Assignee: Rollin S.A.
    Inventors: Gerard Rich, Gilbert Zimmerman
  • Thermoplastic castable composite rocket propellant
    Patent number: 4985094
    Abstract: A castable, thermoplastic composite rocket propellant comprising about 3 to 10 wt % of a thermoplastic elastomer, about 3 to 20 wt % of a plasticizer, balance energetic particulates is provided.Also provided is a process for producing a thermoplastic composite rocket propellant which comprises melt blending a thermoplastic elastomer and about 100 to 300 phr (parts by weight per 100 parts by weight of rubber (elastomer)) plasticizer, adding energetic particulates to the melt, with mixing, and casting the mixture in a suitable mold.
    Type: Grant
    Filed: March 7, 1990
    Date of Patent: January 15, 1991
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Boris D. Nahlovsky, Gilbert A. Zimmerman