Patents by Inventor Thomas S. Croft

Thomas S. Croft 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: 6284976
    Abstract: A cable splice closure includes a closure body having mating surfaces sealed together. An end seal in the closure has an opening for receiving a cable. The end seal is sealed to the closure body by an adhesive bond. An adhesive injection port in the end seal. The port is provided to communicate an adhesive injected into the end seal to bond surfaces of the end seal and the cable to be received, into a sealed unit. The adhesive is a low surface energy adhesive based on acrylic monomers with organoborane are complexes.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: September 4, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Jacqueline J. Pulido, Kenneth D. Rebers, Thomas S. Croft, Alan J. Oshinski, Kwang H. Chu, Daniel G. Lee, Russell P. Smith
  • Patent number: 6064006
    Abstract: An end seal for a cable splice closure includes a core portion having a slot for receiving a cable. A tail portion, extending from the core portion, is of sufficient length and flexibility to be extended over the slot. An adhesive injection port is provided in the core portion to communicate an adhesive injected into the injection port to the slot to bond into a sealed unit the surfaces of the end seal and the cable to be received. The adhesive is a low surface energy adhesive based on acrylic monomers with organoborane amine complexes.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: May 16, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Jacqueline J. Pulido, Kenneth D. Rebers, Thomas S. Croft, Alan J. Oshinski, Kwang H. Chu, Daniel G. Lee, Russell P. Smith
  • Patent number: 5912433
    Abstract: A cable splice closure includes a closure body having mating surfaces sealed together. An end seal in the closure has an opening for receiving a cable. The end seal is sealed to the closure body by an adhesive bond. An adhesive injection port is provided in the end seal to communicate an adhesive injected into the end seal and to bond into a sealed unit the surf aces of the end seal and the cable to be received. The adhesive is a low surface energy adhesive based on acrylic monomers with organoborane amine complexes.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: June 15, 1999
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Jacqueline J. Pulido, Kenneth D. Rebers, Thomas S. Croft, Alan J. Oshinski, Kwang H. Chu, Daniel G. Lee, Russell P. Smith
  • Patent number: 5621043
    Abstract: An elastomer composition, resistant to hydrocarbon fluid and water absorption, comprisinga) an isocyanate reactive component comprising a polypropylene ether polyol containing from about 5 percent to about 60 percent of a dispersion comprising a condensation or addition polymer,b) from about 5 percent to about 35 percent of an epoxy resin, andc) a polyurethane formed from said polypropylene ether polyol, having active hydrogen atoms and at least one isocyanate component in the presence of said dispersion and said epoxy resin,said polyurethane having an isocyanate index of less than 100, said elastomer composition exhibiting less than about 20 percent weight gain after being immersed in kerosene for 24 hours at 38.degree. C.
    Type: Grant
    Filed: August 2, 1995
    Date of Patent: April 15, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Thomas S. Croft
  • Patent number: 5258578
    Abstract: An end seal for splice closures or for terminals comprising a core portion of a flexible resilient material, which core portion has an outer periphery and openings extending through the core portion, which openings communicate with the outer periphery, and a tail portion which is integral with and extends from the core portion periphery to be wrapped about the core portion and the cables placed in the openings thereof for filling the space between the core portion and the closure end surface.
    Type: Grant
    Filed: February 18, 1992
    Date of Patent: November 2, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Russell P. Smith, Thomas S. Croft
  • Patent number: 5169716
    Abstract: The invention provides an encapsulant composition capable of use with signal transmission devices, such as electrical or optical cable. The composition is the extended reaction product of an admixture of an anhydride functionalized composition and a crosslinking agent.
    Type: Grant
    Filed: May 11, 1989
    Date of Patent: December 8, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas S. Croft, Hartwick A. Haugen
  • Patent number: 4985475
    Abstract: The invention provides a grease compatible encapsulant composition capable of use with signal transmission devices, such as electrical or optical cable. The composition is the extended reaction product of an admixture of an anhydride functionalized compound, a crosslinking agent, and an oxirane containing material which provides improved hydrolytic stability to the encapsulant composition.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: January 15, 1991
    Assignee: Minnesota Mining and Manufacturing
    Inventors: Thomas S. Croft, Hartwick Haugen
  • Patent number: 4857563
    Abstract: The invention provides an encapsulant composition capable of use with signal transmission devices, such as electrical or optical cable. The composition is the extended reaction product of an admixture of an anhydride functionalized composition and a crosslinking agent.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: August 15, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas S. Croft, Hartwick A. Haugen