Patents by Inventor Roger L. Demler

Roger L. Demler 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).

  • Patent number: 4159081
    Abstract: Dispensing apparatus has a body defining therein a tubular chamber with an outer wall of generally circular cross-section. A generally coaxial discharge orifice at an end of this chamber is closed by a first valve that includes a member of generally circular cross-section. That member also forms an inner chamber wall and defines with the outer chamber wall an annular discharge passage that is convergent towards the discharge orifice. An annular outlet is in one of the chamber walls and first passage is arranged to supply liquid to be dispensed to the annular outlet for discharge into the discharge passage. Second passage is provided for directing gas under pressure into the chamber for flow through the discharge passage, past the annular outlet and out the orifice.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: June 26, 1979
    Assignee: Scientific Energy Systems Corporation
    Inventors: Roger L. Demler, Joseph Gerstmann