Patents by Inventor Edward G. Hofstetter

Edward G. Hofstetter 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: 4624415
    Abstract: This invention is directed to a nozzle or spout for a sanitary fitting, which is arranged and constructed to reduce the noise of fluid, (water), as it flows through the nozzle or spout passageway and which also removes particles entrained in the fluid, (water), before flowing through the nozzle or spout passageways, to prevent clogging.
    Type: Grant
    Filed: April 1, 1985
    Date of Patent: November 25, 1986
    Assignee: American Standard Inc.
    Inventor: Edward G. Hofstetter, Jr.
  • Patent number: 4421294
    Abstract: In a valve apparatus for controlling fluid flow wherein the apparatus comprises a valve assembly and valve housing; the valve housing including a valve chamber incorporating fluid inlet and outlet conduits and a valve seat; and the valve assembly including a valve stem and collar; the stem adapted to rectilinear but limited movement within said collar including a terminal flange extending into said valve chamber; a stop ring disposed about said valve stem and in spaced relation thereto below the level of said collar; a swivel bearing cup having a rim engaging abutting said terminal flange of said valve stem; and a resilient, compressible valve diaphragm mounted about said valve stem and swivel bearing cup within said chamber; the improvement that includes, among other novel features, a radial space provided between the upper portion of said neck of said valve stem and the inner diameter of said stop ring such that said space comprises up to about 160 percent of the thickness of said diaphragm neck.
    Type: Grant
    Filed: August 13, 1981
    Date of Patent: December 20, 1983
    Assignee: American Standard, Inc.
    Inventors: Richard G. Parkison, Edward G. Hofstetter
  • Patent number: 4364523
    Abstract: This disclosure relates to a flow control device in which the discharge from the nozzle is kept at essentially the same volume rate of flow in spite of fluctuations in the hydraulic pressure upstream from the device by providing a spray body that has a group of radially disposed channels which are perpendicular to the general direction of flow. A flexible spray control washer spaced upstream from these channels responds to hydraulic pressure by pressing into the channels and restricting the flow area of each of these channels in proportion to the applied hydraulic pressure. In this way, the flow area within the chamber is inversely related to the hydraulic pressure in order to maintain a continuous volume rate of flow through the device.
    Type: Grant
    Filed: March 17, 1980
    Date of Patent: December 21, 1982
    Assignee: American Standard Inc.
    Inventors: Richard G. Parkison, Edward G. Hofstetter, Jr.
  • Patent number: 4148215
    Abstract: Consistency transmitters are described in which a torsional transducer is used as a flexural mount for a consistency sensor. A torsional force balance loop, in which signals from the transducer operates a torque motor to balance the torsional forces on the transducer corresponding to consistency, provides for instantaneous and continuous measurement of consistency.
    Type: Grant
    Filed: June 19, 1978
    Date of Patent: April 10, 1979
    Assignee: General Signal Corporation
    Inventor: Edward G. Hofstetter, Jr.