Patents by Inventor Fred M. Schwarzer

Fred M. Schwarzer 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).

  • Patent number: 4610294
    Abstract: The mechanism has a drive roller which engages the cord that opens and closes a closure member such as a drapery. An electric motor that rotates the driver roller is supplied with power through first and second timed switches. An adjustment associated with the first timed switch may be set to control the times at which power to the electric motor is initiated, while an adjustment associated with the second timed switch may be set to determine the interval after which power to the electric motor is terminated.
    Type: Grant
    Filed: November 17, 1983
    Date of Patent: September 9, 1986
    Inventors: Mario Anesi, Fred M. Schwarzer