Patents by Inventor David Charles Harget

David Charles Harget 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).

  • Fastening of pipes
    Patent number: 8316893
    Abstract: A plastics pipe provided with engageable fastener elements on an outer surface thereof, a method for manufacturing the pipe, and a fastener system comprising inter-engageable fastener elements on an outer surface of a pipe and a support therefore.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: November 27, 2012
    Assignee: Uponor Innovation AB
    Inventors: Jeremy Bowman, David Charles Harget
  • FASTENING OF PIPES
    Publication number: 20100000622
    Abstract: A plastics pipe provided with engageable fastener elements on an outer surface thereof, a method for manufacturing the pipe, and a fastener system comprising inter-engageable fastener elements on an outer surface of a pipe and a support therefore.
    Type: Application
    Filed: April 23, 2007
    Publication date: January 7, 2010
    Applicant: UPONOR INNOVATION AB
    Inventors: Jeremy Bowman, David Charles Harget
  • Heat fusion fitting
    Patent number: 6998588
    Abstract: A method for the manufacture of a heat fusion fitting, which comprises i) forming a body (1) comprising at least a first layer of a first cross-linked polymeric material, ii) embedding or partly embedding a ferromagnetic heating element (11, 12) in a second polymeric material (13, 14) to form an insert (7, 8), the ferromagnetic heating element (11, 12) having a Curie temperature equal to or greater than the crystalline melting point or softening point of the second polymeric material (13, 14), and iii) assembling the body and the insert (7, 8) to form the fitting.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: February 14, 2006
    Assignee: Uponor Limited
    Inventors: David Charles Harget, Jyri Jarvenkyla
  • Heat fusion fitting
    Patent number: 6818870
    Abstract: A method for the manufacture of a heat fusion fining, which comprises i) forming a body (1) comprising at least a first layer of a first cross-linked polymeric material, ii) embedding or partly embedding a ferromagnetic heating element (11, 12) in a second polymeric material (13, 14) to form an insert (7, 8), the ferromagnetic heating element (11, 12) having a Curie temperature equal to or greater than the crystalline melting point or softening point of the second polymeric material (13, 14), and iii) assembling the body and the insert (7, 8) to form the fitting.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: November 16, 2004
    Assignee: Uponor Limited
    Inventors: David Charles Harget, Jyri Jarvenkyla
  • Heat fusion fitting
    Publication number: 20030209904
    Abstract: A method for the manufacture of a heat fusion fining, which comprises i) forming a body (1) comprising at least a first layer of a first cross-linked polymeric material, ii) embedding or partly embedding a ferromagnetic heating element (11, 12) in a second polymeric material (13, 14) to form an insert (7, 8), the ferromagnetic heating element (11, 12) having a Curie temperature equal to or greater than the crystalline melting point or softening point of the second polymeric material (13, 14), and iii) assembling the body and the insert (7, 8) to form the fitting.
    Type: Application
    Filed: June 3, 2003
    Publication date: November 13, 2003
    Applicant: Uponor Limited, a United Kingdom Corporation
    Inventors: David Charles Harget, Jyri Jarvenkyla
  • Heat fusion fitting
    Patent number: 6585924
    Abstract: A method for the manufacture of a heat fusion fitting, which comprises i) forming a body (1) comprising at least a first layer of a first cross-linked polymeric material, ii) embedding or partly embedding a ferromagnetic heating element (11, 12) in a second polymeric material (13, 14) to form an insert (7, 8), the ferromagnetic heating element (11, 12) having a Curie temperature equal to or greater than the crystalline melting point or softening point of the second polymeric material (13, 14), and iii) assembling the body and the insert (7, 8) to form the fitting.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: July 1, 2003
    Assignee: Uponor Limited
    Inventors: David Charles Harget, Jyri Jarvenkyla
  • Plastics pipe
    Patent number: 6016849
    Abstract: A plastic pipe which includes an inner core and an outer protective layer bonded thereto, in which the dimensions of the pipe and the protective layer are such that the ratio of the external diameter of the pipe to the thickness of the protective layer is at least 70, preferably at least 100, and the cohesive strength of the outer protective layer, excluding any lines of weakness, at least at the ends of the pipe is greater than the peel strength of the adhesive bond between the outer protective layer and the inner core.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: January 25, 2000
    Assignee: Uponor Limited
    Inventors: David Charles Harget, Mikael Andersson, Eino Matias Holso, Jyri Jaakko Jarvenkyla