Patents by Inventor Remo Sisler

Remo Sisler 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).

  • Reciprocal attitude-angle self-differentiating device for pivotable wheels of handtrucks
    Patent number: 5140720
    Abstract: Reciprocal attitude angle self-differentiating device (10) for pivotable wheels (11,12;110) of handtrucks, each of the wheels (11,12;110) being respectively rotatably mounted about a substantially horizontal axis (22,23;220) belonging to a wheel supporting body (21,15;210), the body (21,15;210) being rotatably mounted about a substantially vertical axis (29,30;290), in which at least one pair of wheels belonging to the handtruck being mutually coupled by means of a device (10) comprising:a) a first coupling mechanism (14), cooperating with the supporting body (15) of the first (12) of the wheels belonging to the pair;b) a second coupling mechanism (13,25;130,250) freely movable mounted on the supporting body (21;210) of the second wheel (11;10) belonging to the pair of wheels, the second mechanism (13,25;130,250) cooperating with a third mechanism (16,24;240) integral and rigidly connected with the supporting body (21;210) of the second wheel (11;110);c) a fourth, motion transmitting, mechanism (20), cooperat
    Type: Grant
    Filed: December 12, 1989
    Date of Patent: August 25, 1992
    Assignee: New Technologies Srl
    Inventor: Remo Sisler