Patents by Inventor Richard L. Hurn

Richard L. Hurn 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: 4716352
    Abstract: The invention is directed to an electrical charging base for a battery-powered appliance having an electrical charging contact and includes a frame defining a shaped cavity for receiving an appliance in only one orientation, a rectifying circuit disposed in the frame for converting source alternating current to charging direct current, the rectifying circuit including a charging output contact disposed for electrical connection to the charging contact of an appliance when disposed in the cavity and a source input contact for electrical connection to an electrical source. A bypass circuit is disposed in the frame for electrically connecting the source input contact to a source output contact. The invention further comprises a jumper for electrically connecting the source output contact of one charging base to the source input contact of a second charging base.
    Type: Grant
    Filed: December 26, 1984
    Date of Patent: December 29, 1987
    Assignee: Black & Decker, Inc.
    Inventors: Richard L. Hurn, Michael R. Sell
  • Patent number: 4476602
    Abstract: A portable electric scrubber in which the drive shaft and gear assembly and drive motor are secured together in a fixed relationship by a one-piece gear case secured within a compartment defined between to halves of a housing. The output shaft includes integral, deflectable cantilever beams having ridges for engaging a central hole in an attachment. The housing is sealed by a one-piece seal which seals between the housing halves, around the output shaft and over an actuation button.
    Type: Grant
    Filed: August 13, 1982
    Date of Patent: October 16, 1984
    Assignee: Black & Decker, Inc.
    Inventors: Richard L. Hurn, Gregory C. Harris, Herman P. Cox
  • Patent number: 4306709
    Abstract: An improved workpiece support arrangement is described having a vise including first and second jaw members, demountable first auxiliary support bodies rotatably supported on said jaws and demountable second auxiliary workpiece gripping bodies demountably supported on said first auxiliary bodies.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: December 22, 1981
    Assignee: Black & Decker Inc.
    Inventor: Richard L. Hurn