Patents by Inventor William D. Leppo

William D. Leppo 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: 7415375
    Abstract: A food waste monitoring system and related methods are disclosed. The food waste monitoring system may include a local food waste monitoring device that is coupled to an electronic scale for weighing food waste. The monitoring device may capture and record the weight of food waste as well related information, such as the type of food wasted, the reason for the food becoming waste, the user weighing the food waste, and the type of container the food waste is weighed in. The system may also include a host device in communication with the local monitoring device that provides remote configuration and control of the local monitoring device.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: August 19, 2008
    Assignee: Leanpath, Inc.
    Inventors: Andrew R. Shakman, Stephen A. Rogers, William D. Leppo
  • Patent number: 5959863
    Abstract: A multiple axis joystick employs positionable and fixed electrode assemblies having mutually orthogonal sets of spaced apart electrodes. The electrode spacings depend on the rotational and translational movements of the positional electrodes relative to the fixed electrodes. A signal generator applies an electromagnetic signal to one set of the electrodes. The signal is coupled to the closest associated electrodes of the other set of electrodes to a degree dependent on the rotation- and translation-induced spacings. A controller sequentially detects and processes each coupled signal voltage to determine a degree of deflection in the X-, Y-, Z-, roll-, pitch-, and yaw-axis directions of one set of the electrodes relative to the other set of electrodes.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: September 28, 1999
    Assignee: Ziba Design, Inc.
    Inventors: Joshua K. Hoyt, Neil L. Brown, William D. Leppo
  • Patent number: 5786997
    Abstract: A capacitively coupled, six axis joystick (320) employs a sensor electrode (310) having a perpendicular pair of slots (312, 314) and a fixed electrode assembly (300) having capacitor electrodes (C.sub.S) formed on three mutually orthogonal surfaces of planar circuit boards (302, 304, 306) that are complementarily nested within the slots of the sensor electrode. When nested together, the capacitor electrodes are separated from faces of the sensor electrode by spacings that depend on the rotational and translational movements of the sensor electrode relative to the electrode assembly. A signal generator (352) and address decoder (354) sequentially apply an alternating signal to the capacitor electrodes. The alternating signal is coupled to the closest associated faces of the sensor electrode to a degree dependent on the rotation- and translation-induced spacings.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: July 28, 1998
    Assignee: Ziba Design, Inc.
    Inventors: Joshua K. Hoyt, Neil L. Brown, William D. Leppo
  • Patent number: 5687080
    Abstract: A six axis joystick (110) employs a 13 pole E-core (112) that includes a center pole (114) and four triads of outer poles (116, 118, 120, 122) that protrude from four orthogonally separated arms (124, 126, 128, 130) of the E-core. A drive winding (132) is wound around the center pole of the E-core, and sense windings (134, 136, 138, 140) are wound around each outer pole in each triad of outer poles. A compression spring (144) suspends a ferromagnetic swash plate (142) at substantially equal distances from the center pole and each of the outer poles. A user employs an actuator handle (148) to axially and rotationally deflect the swash plate to assume varying distances from the center pole and each of the outer poles. A varying magnetic flux induced by the center pole is conducted through the swash plate to each of the outer poles to a degree dependent on the spacing between each outer pole and a bottom surface (146) or a periphery (147) of the swash plate.
    Type: Grant
    Filed: June 20, 1995
    Date of Patent: November 11, 1997
    Assignee: Ziba Design, Inc.
    Inventors: Joshua K. Hoyt, William D. Leppo