Patents by Inventor Lewis E. Zarr

Lewis E. Zarr 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).

  • Emergency fuel shut-off valve
    Patent number: 4969482
    Abstract: A reusable emergency gas shutt-off valve for terminating the supply of fuel to a dwelling is adapted for fluid pressure actuation at a location outside of the dwelling, manual actuation on the valve itself, and thermal actuation from heat in the vicinity of the valve or via a signal received from a temperature-sensing device at a location remote from the valve. The valve is resettable only by utilizing a specially-constructed reloading tool.
    Type: Grant
    Filed: December 1, 1988
    Date of Patent: November 13, 1990
    Assignee: Flodyne Controls, Inc.
    Inventors: Michael W. Perrin, Nicholas R. Clew, Lewis E. Zarr
  • Process apparatus and method and elevator mechanism for use in connection therewith
    Patent number: 4685852
    Abstract: Methods and apparatus for transferring workpieces, such as silicon wafers, between a pair of cassettes involve simultaneously and conjointly indexing the cassettes such that the cassettes are incrementally lowered as the individual workpieces are removed from one cassette and delivered to the other cassette. Such indexing of the cassettes is achieved by a single elevator mechanism adapted to support both of the cassettes such that they are vertically and horizontally offset relative to each other.
    Type: Grant
    Filed: May 20, 1985
    Date of Patent: August 11, 1987
    Assignee: Machine Technology, Inc.
    Inventors: Richard H. Rubin, Gary Hillman, Lewis E. Zarr, William K. Hayes