Patents by Inventor John F. Bruels

John F. Bruels 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).

  • Pneumatic-electric switch apparatus with lock-out feature
    Patent number: 5034581
    Abstract: An apparatus comprising a plurality of electric switches, pneumatic actuators for the switches, assemblies for preventing inadvertent actuation of one or more switches and supports for the elements of the assemblies in coactive relation to each other, in such a way as to prevent eventual binding of the spring arm retainer. This apparatus further eliminates the need for molding of the retainer plate or the separate molding of the supports leading to a reduction in cost and assembly time.
    Type: Grant
    Filed: May 8, 1990
    Date of Patent: July 23, 1991
    Inventor: John F. Bruels