Patents by Inventor Laird R. Bolt

Laird R. Bolt 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: 9698076
    Abstract: A power module for converting direct current to alternating current, the power module including: a semiconductor switching circuit device, a substrate onto which said switching circuit device is physically and electrically coupled, at least one secondary substrate with the semiconductor switching circuit device being physically and electrically coupled to the at least one secondary substrate such that the semiconductor switching circuit device is formed between the substrate and the at least one secondary substrate, at least one thermal mass attached to a respective secondary substrate of the at least one secondary substrate, and a cover at least partially disposed about said power module, said cover including an opening exposing a bottom side of the substrate.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: July 4, 2017
    Assignee: KSR IP Holdings LLC.
    Inventors: Simon Strawbridge, Laird R. Bolt
  • Publication number: 20170178997
    Abstract: A power module for converting direct current to alternating current, the power module including: a semiconductor switching circuit device, a substrate onto which said switching circuit device is physically and electrically coupled, at least one secondary substrate with the semiconductor switching circuit device being physically and electrically coupled to the at least one secondary substrate such that the semiconductor switching circuit device is formed between the substrate and the at least one secondary substrate, at least one thermal mass attached to a respective secondary substrate of the at least one secondary substrate, and a cover at least partially disposed about said power module, said cover including an opening exposing a bottom side of the substrate.
    Type: Application
    Filed: December 22, 2015
    Publication date: June 22, 2017
    Inventors: Simon Strawbridge, Laird R. Bolt
  • Patent number: 9088226
    Abstract: A power module for converting direct current to alternating current comprising a semiconductor switching circuit device, a substrate onto which the switching circuit device is physically and electrically coupled without wirebonds, a plurality of leadframe terminals physically and electrically coupled to the substrate, and a cover including an opening exposing a bottom side of the substrate and including a wall portion oriented generally orthogonally relative to the substrate with at least some of the leadframe terminals projecting outwardly from the wall portion. The leadframe terminals projecting outwardly from the wall portion may include an affixed portion coupled to the substrate and an extending segment lying in a plane above the affixed portion with the extending segment projecting outwardly from the wall portion and the cover encapsulating the affixed portion whereby the extending segment is spaced from a plane defined by the bottom side of the substrate.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: July 21, 2015
    Assignee: Electronics Motion Systems Holding Limited
    Inventors: James D. Tompkins, Ryan R. Dias, Laird R. Bolt
  • Publication number: 20130201741
    Abstract: A power module for converting direct current to alternating current comprising a semiconductor switching circuit device, a substrate onto which the switching circuit device is physically and electrically coupled without wirebonds, a plurality of leadframe terminals physically and electrically coupled to the substrate, and a cover including an opening exposing a bottom side of the substrate and including a wall portion oriented generally orthogonally relative to the substrate with at least some of the leadframe terminals projecting outwardly from the wall portion. The leadframe terminals projecting outwardly from the wall portion may include an affixed portion coupled to the substrate and an extending segment lying in a plane above the affixed portion with the extending segment projecting outwardly from the wall portion and the cover encapsulating the affixed portion whereby the extending segment is spaced from a plane defined by the bottom side of the substrate.
    Type: Application
    Filed: October 19, 2011
    Publication date: August 8, 2013
    Applicant: ELECTRONIC MOTION SYSTEMS HOLDINGS LIMITED
    Inventors: James D. Tompkins, Ryan R. Dias, Laird R. Bolt