Patents by Inventor Joseph Stevenson

Joseph Stevenson 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).

  • Publication number: 20120086201
    Abstract: A detachable hose coupling includes a generally cylindrical female piece and a male piece having a first end of a size and configuration to permit insertion into the female piece and seat at a fixed point within the female piece, the male piece having a second end for connection to a hose and having a flange collar extending radially outward from the second end and which is longitudinally displaced a predetermined distance from an end of the female piece when said first end of the male piece is completely connected and seated within said female piece, and wherein the flange collar is provided with opposing flats. The female piece includes a notch in one end.
    Type: Application
    Filed: October 12, 2010
    Publication date: April 12, 2012
    Inventor: Joseph Stevenson Murken
  • Publication number: 20070144349
    Abstract: A hydrogen storage and release device (10) is provided for storing and releasing hydrogen from a metal hydride (30) contained in the device (10) based on heat transfer to or from a coolant flow provided through the device (10). The device (10) includes a housing (12) and a metal hydride containing a tube bundle located within the housing (12), with the exteriors (26) of the tubes (16) of the bundle (14) being reduced over a selected length to provide a free flow area for the coolant flow.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 28, 2007
    Inventors: Mark Voss, Joseph Stevenson, Gregory Mross
  • Publication number: 20070141420
    Abstract: A fuel cell thermal management system (10) is provided for maintaining a fuel cell stack (12) within a desired operating temperature range. The system (10) includes a thermal storage reservoir (14), a radiator (16), and a mixing valve (18). Heat from the fuel cell stack (12) is rejected to the thermal storage reservoir (14), and heat from the reservoir (14) is rejected to ambient in the radiator (16). The mixing valve (18) receives a coolant flow from the fuel cell stack (12) at a first temperature T1 and a coolant flow from the radiator (16) or the reservoir (14) at a second temperature T2 and mixes the two coolant flow together to provide a mixed coolant flow to the stack (12) at a third temperature T3 to maintain the stack (12) within its desired operating temperature range.
    Type: Application
    Filed: December 19, 2005
    Publication date: June 21, 2007
    Inventors: Mark Voss, F. Jarrett, Joseph Stevenson
  • Publication number: 20050184611
    Abstract: A rotor for a permanent magnet motor includes a rotor body and a plurality of permanent magnets carried by the rotor body. The rotor body has an outside rotor surface with a plurality of dovetail slots formed on the outside rotor surface. Each magnet is fit within one of the slots, protruding outward of the outside rotor surface in a radial direction. According to another embodiment, a rotor is provided having a rotor body that carries a plurality of magnets on its outside surface, and end caps that are fastened respectively to longitudinal ends of the rotor body. The end caps each have a angled rim surfaces that overhangs an end portion of the outer magnet surface of each of the magnets to retain the magnets onto the rotor body. The angled rim surfaces and the magnets can be configured such that by drawing the end caps tightly against the rotor body by use of fasteners, the magnets are wedged down onto the rotor body by the angled rim surfaces.
    Type: Application
    Filed: April 25, 2005
    Publication date: August 25, 2005
    Inventors: Brent Rinholm, Randall Griffin, Joseph Stevenson
  • Publication number: 20050046294
    Abstract: A rotor for a permanent magnet motor includes a rotor body and a plurality of permanent magnets carried by the rotor body. The rotor body has an outside rotor surface with a plurality of dovetail slots formed on the outside rotor surface. Each magnet is fit within one of the slots, protruding outward of the outside rotor surface in a radial direction. According to another embodiment, a rotor is provided having a rotor body that carries a plurality of magnets on its outside surface, and end caps that are fastened respectively to longitudinal ends of the rotor body. The end caps each have a angled rim surfaces that overhangs an end portion of the outer magnet surface of each of the magnets to retain the magnets onto the rotor body. The angled rim surfaces and the magnets can be configured such that by drawing the end caps tightly against the rotor body by use of fasteners, the magnets are wedged down onto the rotor body by the angled rim surfaces.
    Type: Application
    Filed: August 26, 2003
    Publication date: March 3, 2005
    Inventors: Brent Gordon Rinholm, Randall John Griffin, Joseph Stevenson
  • Patent number: 5164731
    Abstract: The present invention is a radar system that detects turbulence by breaking a range cell return down into spectral segments using an FFT processor. The standard deviation of the spectrum is determined and the system compares that standard deviation to a reference threshold of a non-turbulent return if the signal is above noise. If the threshold is exceeded, the range cell is marked for turbulence display. Once the turbulence display is completed it is overlayed on the weather display. To improve matching of the feature size to the variance calculation the invention performs both range and azimuth post detection integration subsequent to the FFT but before variance calculation.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: November 17, 1992
    Assignee: Westinghouse Electric Corp.
    Inventors: Scott C. Borden, Bruce D. Mathews, Joseph Stevenson
  • Patent number: 4978960
    Abstract: A system for real beam radar ground mapping using a monopulse antennae to determine off-boresight angle of target returns. Off-boresight angle is converted to azimuth bins. After processing, return energy for each contiguous azimuth bin of an illuminated area is dumped during a respective "look" of the antenna.
    Type: Grant
    Filed: December 27, 1988
    Date of Patent: December 18, 1990
    Assignee: Westinghouse Electric Corp.
    Inventors: Gary L. Newcomb, Timothy E. Brandt, Scott C. Borden, Joseph Stevenson