Patents by Inventor Michael Mutal

Michael Mutal 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).

  • Remote fail-safe control for elevator
    Patent number: 5817994
    Abstract: A remote control arrangement (and method) for generating a car command remotely, includes a wireless transmitter and a wireless receiver which is coupled to an elevator controller. The receiver is detachably connected to wiring which leads to the controller. After finishing use of the transmitter/receiver arrangement, elevator service personnel detaches the receiver from the elevator wiring leading to the controller.
    Type: Grant
    Filed: September 8, 1997
    Date of Patent: October 6, 1998
    Assignee: Otis Elevator Company
    Inventors: Gerald B. Fried, Michael Mutal