Patents by Inventor Clark R. Caplan

Clark R. Caplan 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).

  • Apparatus for treating flowing working gases particularly to reduce the noise in operation thereof
    Patent number: 4346783
    Abstract: A device for treating flowing working gases in order to reduce their operational noises and in most instances also to increase their operating efficiency comprises a flowing working gas operating device which has a discharge conduit with at least one discharge opening for the outflow of the working gas. A check valve is associated with the discharge and includes an elastic valve member movable to close the opening when the flow thereof decreases to a predetermined amount for example as determined by the reduction of pressure of the gases so as to prevent any back flow into the conduit which is likely to produce noise.
    Type: Grant
    Filed: September 26, 1980
    Date of Patent: August 31, 1982
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Henry A. Scarton, Warren C. Kennedy, Keith R. Gaylo, Clark R. Caplan