Patents Represented by Law Firm Barnes & Thornsburg
  • Patent number: 5275064
    Abstract: A telescoping platform assembly able to convert each unit of distance moved by a driver into two, four, or greater number of units of platform extension includes five or more interconnected slide members. The interconnected slide members are extended by operation of a powered driver coupled to the second slide member cooperating with first, second, and third cable and pulley mechanisms. The first cable and pulley mechanism couples the first, second, and third slide members together so that the third slide extends twice as far as the second slide member. The second cable and pulley mechanism couples the second, third, and fourth slide members together so that the fourth slide members extends three times as far as the second slide member. The third cable and pulley mechanism couples the third, fourth, and fifth slide members together so that the fifth slide member extends four times as far as the second slide member.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: January 4, 1994
    Assignee: General Devices Co., Inc.
    Inventor: James D. Hobbs