Patents Assigned to Martin Research & Development
  • Patent number: 4509747
    Abstract: An arm wrestling apparatus (10) includes a base (12) with a telescoping arm (20) pivoted about pivoting brackets (16) and (18). A resilient band (50) is disposed between a stud (48) and a stud (46). The stud (46) is mounted on a reinforcing member (42) that is oriented at an essentially 45.degree. angle with respect to the base (12). Rotation of the telescoping arm (20) stretches the resilient band (50) and directs the force primarily along the longitudinal axis of the support member (42). An additional reinforcing member (40) is disposed at an essentially right angle with respect to the reinforcing member (42). A stud (44) is disposed thereon such that the resilient band (50) can be disposed thereon to reverse the rotation thereof. A limiting pin (32) is disposed on the brackets (16) and (18) to limit rotation to essentially 90.degree..
    Type: Grant
    Filed: July 18, 1983
    Date of Patent: April 9, 1985
    Assignee: Martin Research & Development
    Inventor: Michael L. Martin