Patents by Inventor Roy F. Zeigler

Roy F. Zeigler 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).

  • Automatically closing modesty curtain
    Patent number: 4667353
    Abstract: What is disclosed in an automatically closing modesty curtain which allows the user assured complete privacy and which does not require continued manipulation by the hands thereby leaving the hands free to undertake other tasks. For example, in an emergency shower situation, once the handle on the safety shower is pulled, the user can be assured of complete privacy while removing contaminated clothing while being simultaneously deluged by shower water.
    Type: Grant
    Filed: October 22, 1984
    Date of Patent: May 26, 1987
    Assignee: Tri City Laboratory Specialists, Inc.
    Inventors: Warren L. Zeigler, Roy F. Zeigler
  • Fume hood sash operator
    Patent number: 4502375
    Abstract: What is disclosed is a new and novel fume hood sash operator system and a fume hood containing such a system. The sash operator is constructed to operate with a belt drive and a clutch mechanism so that the sash member can be stopped, started, moved up or down to accommodate changes in the flow or air moving through the hood structure and to provide a safe, durable, energy-saving sash operating system.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: March 5, 1985
    Assignee: Tri City Laboratory Specialists, Inc.
    Inventors: Alan L. Hignite, Richard L. Wendt, Roy F. Zeigler, Warren L. Zeigler