Patents Represented by Attorney David A. Roden

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  • Support for decorative and communicative material
    Patent number: 4275112
    Abstract: A decorative hanging, electrostatically adherent to wall and ceiling surfaces comprises a doubly charged, irradiated and crosslinked insulative plastic foam.
    Type: Grant
    Filed: August 28, 1978
    Date of Patent: June 23, 1981
    Assignee: Ionic Controls, Inc.
    Inventor: Erle B. Savage, Jr.
  • Internal gear set having roller teeth
    Patent number: 3979167
    Abstract: Internal gear set comparable to a geroter gear set except that all teeth are provided by rollers positioned in slightly oversize pockets. The internal gear set may have two, three or more gear members to provide, respectively, one, two or more sets of expanding and collapsing chambers and may be used as a hydraulic motor, pump and/or speed reducer.
    Type: Grant
    Filed: January 27, 1975
    Date of Patent: September 7, 1976
    Inventor: Leslie H. Grove