Patents by Inventor David B. Russell

David B. Russell 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).

  • Method for the stretching of fasteners
    Patent number: 4276255
    Abstract: Method for stretching of fastener stock. The stock is of stretchable material and is engaged by members which are spaced apart at an angle and rotate at substantially the same peripheral speed in different planes to stretch the portion of the stock that extends between the members.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: June 30, 1981
    Assignee: Dennison Manufacturing Company
    Inventor: David B. Russell
  • Antifoulant composition and method
    Patent number: 4260535
    Abstract: The durability of coatings formed from antifouling compositions containing a biologically active organotin-containing polymer as the film-forming component is improved by the presence of at least one biologically inactive organotin-containing polymer in an amount of from 0.01 to 10% based on the weight of the initial coating composition.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: April 7, 1981
    Assignee: M&T Chemicals Inc.
    Inventor: David B. Russell
  • Feed and severing apparatus
    Patent number: 4179063
    Abstract: Apparatus for feeding and severing fastener attachment stock. The stock is formed by elongated side members that are intercoupled by a plurality of spaced apart cross links. The side members are fed and severed between adjacent cross members to form individual fastener attachments.
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: December 18, 1979
    Assignee: Dennison Manufacturing Company
    Inventor: David B. Russell
  • Biologically active triorganotin copolymers
    Patent number: 4121034
    Abstract: The undesirable swelling exhibited by biologically active copolymers wherein a portion of the repeating units exhibit a triorganotin moiety (R.sub.3 SN--) is reduced by incorporation of a cross-linking agent into the copolymer. The physical and chemical properties of the cross-linked copolymers make them more suitable for use as biocides particularly antifouling toxicants, than polymers described in the prior art.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: October 17, 1978
    Assignee: M&T Chemicals Inc.
    Inventors: John R. Bednarski, David B. Russell
  • Novel biologically active copolymers
    Patent number: 4104234
    Abstract: The undesirable swelling exhibited by biologically active copolymers wherein a portion of the repeating units exhibit a triorganotin moiety (R.sub.3 Sn--) is reduced by incorporation of a cross-linking agent into the copolymer. The physical and chemical properties of the cross-linked copolymers make them more suitable for use as biocides particularly antifouling toxicants, than polymers described in the prior art.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: August 1, 1978
    Assignee: M&T Chemicals Inc.
    Inventors: John R. Bednarski, David B. Russell
  • Method for preparing biologically active copolymers of triorganotin acrylates
    Patent number: 4064338
    Abstract: Biologically active copolymers wherein a portion of the repeating units exhibit a triorganotin moiety (R.sub.3 Sn--) are prepared by solution polymerization using liquid aliphatic or cycloaliphatic hydrocarbons as the polymerization medium. The physical and chemical properties of the copolymers make them more suitable for use as biocides than polymers prepared using methods described in the prior art.
    Type: Grant
    Filed: September 7, 1976
    Date of Patent: December 20, 1977
    Assignee: M & T Chemicals Inc.
    Inventor: David B. Russell
  • Rubber additive of silica and organic coupling agent
    Patent number: 3994742
    Abstract: Abrasion-resistant vulcanized rubber compositions which are also resistant to heat build-up are provided which are useful as tire treads and subtreads for vehicles, e.g., automobiles. The compounds comprise the vulcanizate of a rubber polymer, a finely-divided reinforcing siliceous pigment, and an organic coupling agent having at least one nitrogen functional group that bonds to the siliceous pigment and at least one sulfur functional group that bonds to the rubber polymer.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: November 30, 1976
    Assignee: PPG Industries, Inc.
    Inventors: David B. Russell, Thomas J. Doran, Jr.
  • Feed and severing apparatus
    Patent number: 3948128
    Abstract: A new and improved apparatus and method for feeding fastener attachments and stock having a plurality of spaced apart cross links coupled to side members, and severing the side members between adjacent cross members to form fastener attachment devices, i.e., fasteners.
    Type: Grant
    Filed: December 7, 1973
    Date of Patent: April 6, 1976
    Assignee: Dennison Manufacturing Company
    Inventor: David B. Russell