Patents by Inventor Silvano Sinkauz

Silvano Sinkauz 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).

  • Circuit arrangement of a staircase lighting time switch
    Patent number: 4425532
    Abstract: Circuit arrangement of a staircase lighting time switch offers a possibility of an automatic reduction of the light power of lamps lighting the staircase whereby the user is warned that the time of the switch is running out. The time period of full power as well as the time period of reduced power can be set separately. Each activation of the push-button switch prolongs the operation of the circuit for the operation time to which it is adjusted.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: January 10, 1984
    Inventor: Silvano Sinkauz