Patents by Inventor Merlon E. Wiggin

Merlon E. Wiggin 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).

  • Fume hood air flow control
    Patent number: 4741257
    Abstract: A control system is provided for providing a constant flow of air through a chamber, such as a fume hood, by measuring the pressure of the air outside of the hood and comparing it with the pressure of the air within the hood and adjusting the flow of air to achieve a constant pressure difference. The system is particularly applicable to fume hoods which have a sash which can be opened or closed or left in intermediate position; the present system will provide a constant air flow through the hood regardless of the sash position.
    Type: Grant
    Filed: January 9, 1985
    Date of Patent: May 3, 1988
    Assignee: Air Monitor Corporation
    Inventors: Merlon E. Wiggin, Robert H. Morris