Patents by Inventor Leif Halvorsen

Leif Halvorsen 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: 7544082
    Abstract: The present invention provides new weatherproof outdoor electrical connection guard for protecting electrical extension cord plug connections, especially in wet environments. The guard includes a protective housing for covering the point of connection between an extension cord plug and the mating plug from a power-consuming device inserted therein. A catch is provided to removably secure the connected cords within the housing. An elongated stake is provided for securing the connection guard in an elevated position above the ground. The connection guard further includes ventilation for moisture and heat dissipation.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: June 9, 2009
    Inventor: Leif Halvorsen
  • Patent number: 7090271
    Abstract: An exemplary embodiment of a sling for moving objects includes a sheet of flexible material having opposite first and second sides, longitudinally spaced apart transversely extending first and second side edges, transversely spaced apart longitudinally extending third and fourth side edges, transversely extending first and second edge loops along the first and second side edges respectively, and transversely extending intermediate loops attached to the sheet and longitudinally spaced apart between the first and second side edges. First and second elongated element may be disposed through first and second one of the loops, respectively, and cut-out sections positioned between distal ends of the loops. A more particular embodiment of the sheet includes longitudinally extending edge loops attached along the third and fourth side edges, longitudinally extending intermediate loops attached to the second side, and the transversely extending intermediate loops attached to the first side.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: August 15, 2006
    Inventor: Leif A. Halvorsen, Jr.
  • Publication number: 20060017299
    Abstract: An exemplary embodiment of a sling for moving objects includes a sheet of flexible material having opposite first and second sides, longitudinally spaced apart transversely extending first and second side edges, transversely spaced apart longitudinally extending third and fourth side edges, transversely extending first and second edge loops along the first and second side edges respectively, and transversely extending intermediate loops attached to the sheet and longitudinally spaced apart between the first and second side edges. First and second elongated element may be disposed through first and second one of the loops, respectively, and cut-out sections positioned between distal ends of the loops. A more particular embodiment of the sheet includes longitudinally extending edge loops attached along the third and fourth side edges, longitudinally extending intermediate loops attached to the second side, and the transversely extending intermediate loops attached to the first side.
    Type: Application
    Filed: July 26, 2004
    Publication date: January 26, 2006
    Inventor: Leif Halvorsen
  • Publication number: 20030177603
    Abstract: A blowing apparatus includes a blower having a housing with an inlet and an outlet, a fan mounted in the housing and capable of producing a stream of air through the outlet, a tube connected to the outlet and operable to direct the stream of air, and a mounting means for mounting the housing on a multi-directional mount capable of providing the housing and, in turn, the blower and tube with at least two rotational degrees of freedom. In one exemplary embodiment, the mounting means includes a plate having a threaded hole structurally associated with or attached to the housing. The multi-directional mount is a pan head mounting head. A stand, such as a tripod, may be used to support the multi-directional mount upon which the blower is mounted.
    Type: Application
    Filed: March 19, 2002
    Publication date: September 25, 2003
    Inventor: Leif A. Halvorsen
  • Patent number: 6033213
    Abstract: An apparatus for heating plastic pipe includes an outer housing having distal first and second open ends and a diffuser plate mounted inside of and spaced apart from the top of the outer housing. An inlet extending through the housing is positioned for directing heated air to impinge on the diffuser plate. A mount positions the diffuser plate within the housing such that when the plastic pipe is disposed in the housing through the open ends of the diffuser plate does not contact the pipe. First and second end caps are disposed at the distal first and second open ends respectively. The end caps have first and second apertures therethrough for supporting and centering the plastic pipe such that the diffuser plate does not contact the pipe.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: March 7, 2000
    Inventor: Leif A. Halvorsen, Jr.