Patents Represented by Law Firm Nilsson, Robbins, Daigarn, Berliner, Carson & Wurst
  • Patent number: 4428238
    Abstract: Apparatus for subjecting a test specimen to vibrational forces has a base, a first preselected massmounted for reciprocal movement relative to the base and a second preselected mass elastically coupled to the first mass to produce a resonant condition at a preselected frequency of reciprocal movement.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: January 31, 1984
    Assignee: Team Corporation
    Inventor: Robert Tauscher