Patents by Inventor Randall Mark Feldman

Randall Mark Feldman 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).

  • Electroactive polymer transducers biased for optimal output
    Patent number: 8072121
    Abstract: Electroactive polymer transducers are disclosed. They are biased in a manner that provides for increased force and/or stroke output, thereby offering improved work potential and power output capacity. The biasing may offer additional or alternate functional advantage in terms of matching transducer performance with a given application such as a normally-closed valve. The improved biasing (including increased output biasing) may utilize negative spring rate biasing and/or a combination of negative or zero-rate biasing with positive rate biasing to achieve the desired ends.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: December 6, 2011
    Assignee: Bayer MaterialScience AG
    Inventors: Jonathan R. Heim, Randall Mark Feldman
  • ELECTROACTIVE POLYMER TRANSDUCERS BIASED FOR OPTIMAL OUTPUT
    Publication number: 20100102677
    Abstract: Electroactive polymer transducers are disclosed. They are biased in a manner that provides for increased force and/or stroke output, thereby offering improved work potential and power output capacity. The biasing may offer additional or alternate functional advantage in terms of matching transducer performance with a given application such as a normally-closed valve. The improved biasing (including increased output biasing) may utilize negative spring rate biasing and/or a combination of negative or zero-rate biasing with positive rate biasing to achieve the desired ends.
    Type: Application
    Filed: June 29, 2009
    Publication date: April 29, 2010
    Inventors: Jonathan R. HEIM, Randall Mark FELDMAN