Patents by Inventor Alexander M. Philobos

Alexander M. Philobos 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).

  • Elevator system
    Patent number: 4643276
    Abstract: A traction elevator system having an elevator car and a counterweight. Counterweight derailment, such as due to an earthquake, is detected via a vertically oriented wire strung tautly in the hoistway, a metallic ring on the counterweight which encircles the wire, control connected to the wire for detecting contact between the ring and wire, and a switch on the counterweight which enables the control to detect contact between the ring and wire only after predetermined abnormal horizontal movement of the counterweight.
    Type: Grant
    Filed: May 2, 1985
    Date of Patent: February 17, 1987
    Assignee: Westinghouse Electric Corp.
    Inventor: Alexander M. Philobos