Patents by Inventor Guy G Gronquist

Guy G Gronquist 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).

  • Pipeline joint infill and protective sleeve
    Patent number: 7520535
    Abstract: An apparatus for protecting exposed pipeline joints on weight coated pipelines used in offshore applications includes a pliable cover sleeve which overlaps a pair of weight coat sections that surround the pipeline on each side of the pipe joint. The cover sleeve circumferentially envelops the pipe joint, forming an annular space enclosed between the pipe and the cover sleeve and bordered by the pair of weight coat sections. The cover sleeve includes a number of protruding ridges forming a number of chambers between the ridges in flow communication with the annular space. A joint-filling material of polyurethane foam formed by polyurethane chemicals fills the annular space and the chambers between the ridges of the cover sleeve. As the joint filling material hardens it interlocks with the ridges of the cover sleeve, securing the joint filling material between the cover sleeve and the pipe joint.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: April 21, 2009
    Assignee: Offshore Joint Services, Inc.
    Inventor: Guy G. Gronquist
  • Pipe joint infill and protective sleeve
    Patent number: 7407197
    Abstract: An apparatus for protecting exposed pipeline joints on weight coated pipelines used in offshore applications includes a pliable cover sleeve which overlaps a pair of weight coat sections that surround the pipeline on each side of the pipe joint. The cover sleeve circumferentially envelops the pipe joint, forming an annular space enclosed between the pipe and the cover sleeve and bordered by the pair of weight coat sections. The cover sleeve includes a number of protruding ridges forming a number of chambers between the ridges in flow communication with the annular space. A joint-filling material of polyurethane foam formed by polyurethane chemicals fills the annular space and the chambers between the ridges of the cover sleeve. As the joint filling material hardens, it interlocks with the ridges of the cover sleeve, securing the joint filling material between the cover sleeve and the pipe joint.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: August 5, 2008
    Assignee: Offshore Joint Services, Inc.
    Inventor: Guy G Gronquist
  • Pipeline joint infill and protective sleeve
    Publication number: 20080136171
    Abstract: An apparatus for protecting exposed pipeline joints on weight coated pipelines used in offshore applications includes a pliable cover sleeve which overlaps a pair of weight coat sections that surround the pipeline on each side of the pipe joint. The cover sleeve circumferentially envelops the pipe joint, forming an annular space enclosed between the pipe and the cover sleeve and bordered by the pair of weight coat sections. The cover sleeve includes a number of protruding ridges forming a number of chambers between the ridges in flow communication with the annular space. A joint-filling material of polyurethane foam formed by polyurethane chemicals fills the annular space and the chambers between the ridges of the cover sleeve. As the joint filling material hardens it interlocks with the ridges of the cover sleeve, securing the joint filling material between the cover sleeve and the pipe joint.
    Type: Application
    Filed: February 6, 2008
    Publication date: June 12, 2008
    Inventor: Guy G. Gronquist