Patents by Inventor Don B. Hart

Don B. Hart 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: 5548496
    Abstract: A portable lamp assembly (10) consisting of a lamp housing (12) that incorporates a quartz halogen lamp (50) and that features an articulated lamp-housing support (20). The support (20) consists of a U-shaped bracket (22) having a horizontal member (22A) and two side members (22B). The side members are swivelly attached to the lower section (12B) of the housing (12). To the bottom surface of the horizontal member (22A) is attached a clevis structure (26) to which is swivelly attached a first end (28A) of a clamp support link (28). The second end (28B) of the support link is rigidly attached to a first handle (30A) of a spring-loaded clamp (30). The clamp (30) functions as a third leg that when positioned vertically and used in combination with a pair of legs (24) that extend from the structure (20), allows the assembly (10) to be stably placed upon a horizontal surface.
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: August 20, 1996
    Inventors: Don B. Hart, George Hillinger
  • Patent number: 5418701
    Abstract: An apparatus (10) that combines within a unitary protective tubular structure (12) a retractable, extendable and omni-positionable light assembly (20) that houses a halogen lamp (20I that is controlled by a switch/circuit breaker (22A). The switch is attached to the housing and is connected in series between the lamp (20I) and a lamp power cord (22B,22E) that terminates at the output of a utility-power junction box (32) that includes a pair of auxiliary a-c power outlets (32L). The input to the junction box (32) is a primary power input cord that terminates with a male power input connector (32J). The connector (32J) connects with a female connector (36A) that is attached to one end of an electrical power cord (36) and that is fixedly attached to a power-cord reel (38). The other end of the cord (36) is wound around the power-cord reel (38) and terminates with a male connector (36B) that connects to an a-c power outlet.
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: May 23, 1995
    Inventor: Don B. Hart
  • Patent number: D459885
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: July 9, 2002
    Assignee: Alltrade Inc.
    Inventor: Don B. Hart
  • Patent number: D460237
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: July 9, 2002
    Assignee: Alltrade Inc.
    Inventor: Don B. Hart