Patents by Inventor Keith Hoffman

Keith Hoffman 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: 6346283
    Abstract: A novel method of inhibiting at least one symptomology of Restless Legs Syndrome (RLS) and its related disorders, including disorders such as periodic limb movements in sleep (PLMS) and periodic limb movement disorder (PLMD), is disclosed. Said method optionally comprising identifying a host, preferably a human, afflicted with Restless Legs Syndrome (RLS) and its related disorders; and comprising administering to said host a pharmaceutically effective amount of Valeriana, preferably an extract of Valeriana. A novel method of inhibiting at least one symptomology of Restless Legs Syndrome (RLS) and its related disorders is disclosed.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: February 12, 2002
    Assignee: Ancile Pharmaceuticals
    Inventors: Keith Hoffman, Costas Loullis
  • Patent number: 6221071
    Abstract: An apparatus for ablating tissue has an elongate member, at least two electrodes housed within an axial lumen of the elongate member, and an electrode actuator for advancing the electrodes beyond a distal end of the elongate member and into tissue to a site targeted for ablation. The electrode actuator rapidly advances the electrodes beyond the distal end of the elongate member so that the electrodes assume a uniform outwardly everted configuration.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: April 24, 2001
    Assignee: SCIMED Life Systems, Inc.
    Inventors: John Sherry, Keith Hoffman
  • Patent number: 6033047
    Abstract: A drawer slide assembly for supporting a drawer on a cabinet in which the slide channels include in-stop elements at the outer ends to facilitate positioning and assembly of the drawer slide assembly. At least one anti-scrape polymeric guide bushing is located at the outer ends of the channels in order to reduce binding and scraping of the slide channels.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: March 7, 2000
    Assignee: Knape & Vogt Manufacturing Company
    Inventor: Keith A. Hoffman
  • Patent number: 5966980
    Abstract: The process includes hot-forming a large diameter Zircaloy ingot to a flat plate having longitudinal, transverse and depth dimensions and forming blanks in a transverse direction from the flat plate for ultimately forming the end plugs of a nuclear fuel rod. The axis of the end plugs is generally transverse to the longitudinal dimensions of the flat plate whereby centerline defects in the blank are reduced or eliminated. To the extent centerline defects occur, they lie generally transverse to the axis of the end plug whereby the defects are rendered ineffective to form leakage paths through the end plugs.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: October 19, 1999
    Assignee: General Electric Company
    Inventors: Richard Frank Calcaterra, Paul Keith Hoffman
  • Patent number: 5868479
    Abstract: A drawer slide assembly for supporting a drawer on a cabinet in which the slide channels include in-stop elements at the outer ends to facilitate positioning and assembly of the drawer slide assembly. At least one anti-scrape polymeric guide bushing is located at the outer ends of the channels in order to reduce binding and scraping of the slide channels.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: February 9, 1999
    Assignee: Knape & Vogt Manufacturing Company
    Inventor: Keith A. Hoffman
  • Patent number: 5695265
    Abstract: A drawer slide assembly of telescopically interfit drawer, cabinet, and center channels, the drawer and cabinet channels including screw mounting orifices, and the center channel having an enlarged access opening positioned to be in alignment with those orifices. A bearing retainer is engageable by a polymeric engaging member on the center channel.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 9, 1997
    Assignee: Knape & Vogt Manufacturing Company
    Inventor: Keith A. Hoffman
  • Patent number: 5507571
    Abstract: A drawer slide assembly for supporting a drawer on a cabinet in which the slide channels include in-stop elements at the outer ends to facilitate positioning and assembly of the drawer slide assembly. At least one anti-scrape polymeric guide bushing is located at the outer ends of the channels in order to reduce binding and scraping of the slide channels.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: April 16, 1996
    Assignee: Knape & Vogt Manufacturing Company
    Inventor: Keith A. Hoffman
  • Patent number: 5472272
    Abstract: A drawer rail assembly having at least an outer rail, an inner rail, and ball bearings enabling relative extension therebetween, said rails having vertical legs and generally horizontally extending, arcuate, radiused legs forming bearing races. At least the lower, generally horizontally extending leg of the outer race has an integral buttress leg or extension which protrudes at an obtuse angle from the arcuate portion and has two sections, namely an intermediate section at an obtuse angle to the end of the arcuate portion, and a terminal section at an obtuse angle to the intermediate section.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: December 5, 1995
    Assignee: Knape & Vogt Manufacturing Company
    Inventor: Keith A. Hoffman
  • Patent number: 5466060
    Abstract: A drawer slide assembly of telescopically interfit drawer, cabinet and center channels, the drawer and cabinet channels including screw mounting orifices, and the center channel having an enlarged access opening positioned to be in alignment with those orifices. A bearing retainer is engageable by a polymeric engaging member on the center channel.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: November 14, 1995
    Assignee: Knape & Vogt Manufacturing Company
    Inventor: Keith A. Hoffman
  • Patent number: 5411333
    Abstract: A drawer slide assembly comprising two or more channel pieces is fabricated from both plastic and metal materials. Specifically, the channel pieces are made up of formed steel and certain individual components such as stops, cushions and ball retainers are made of plastic. The invention behind the present concept is usage of detents, tabs and projections to retain the plastic components in their positions while maintaining the functional integrity of these individual items as they function within the drawer slide.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: May 2, 1995
    Assignee: Knape & Vogt Manufacturing Company
    Inventor: Keith A. Hoffman
  • Patent number: 4662761
    Abstract: A sequencing mechanism for a sequential drawer slide includes a resiliently compressible sequence control roller carried by the intermediate slide member and mutually opposing bosses on the drawer and cabinet slide members. The bosses are in the travel path of the control roller to selectively engage the control roller and compress it therebetween at the transition point to thereby smoothly sequence movement of the slide members.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: May 5, 1987
    Assignee: Knape & Vogt Manufacturing Company
    Inventor: Keith A. Hoffman
  • Patent number: 4615095
    Abstract: The specification discloses an improved self-closing drawer slide including integral scales to facilitate installation. More particularly, separate scales are provided on the cabinet channel assembly and the drawer channel assembly, and each scale indicates the height to which one end of the channel assembly must be elevated above the other end of the channel assembly to mount the channel at a desired inclination from horizontal.
    Type: Grant
    Filed: October 17, 1985
    Date of Patent: October 7, 1986
    Assignee: Knape & Vogt Manufacturing Company
    Inventors: Walter L. Bessinger, Keith A. Hoffman
  • Patent number: 4549774
    Abstract: The specification discloses a drawer slide assembly providing automatic centering of the drawer within the cabinet opening and enabling a drawer of increased dimensions to be utilized in a given cabinet opening. The assembly includes a pair of cabinet channels secured to the cabinet and a pair of drawer rails secured to the drawer. The drawer rails ride on cabinet rollers supported at the forward ends of the channels. The cabinet rollers are mounted on an axis below the cabinet opening and are frustoconically shaped to cooperate with beveled surfaces on the drawer rails to guide the drawer to a centered position. The cabinet rollers, drawer rails, and drawer are vertically aligned so that the drawer can extend the full width of the opening. The rear ends of the cabinet channels are forked and extend into apertures in the cabinet rear wall to support the channels in the cabinet.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: October 29, 1985
    Assignee: Knape & Vogt Manufacturing Company
    Inventors: Walter L. Bessinger, Keith A. Hoffman