Patents by Inventor Larry S. Anderson

Larry S. Anderson 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).

  • Mounting for an elevator traction machine
    Patent number: 5899300
    Abstract: Mounting apparatus for a traction machine disposed in a hoistway includes a pair of beams that extend through the hoistway to the pit. One of the beams includes a mounting plate disposed at the top of the beam and to which the machine is fastened. The elevator car frame is engaged with guide rails that are functionally separate from the beams. In a particular embodiment, the guide rails are retained to the beams by clips. The clips retain and position the guide rail without subjecting the guide rails to the load of the traction machine.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: May 4, 1999
    Assignee: Otis Elevator Company
    Inventors: William T. Miller, Dwight G. Covey, Larry S. Anderson
  • Substituted urea and oxime modified amino crosslinking agents, curable compositions containing the same and process for preparing pyrrolidone urea
    Patent number: 5665852
    Abstract: Novel substituted urea and oxime carbamate modified amino crosslinking agents, curable compositions containing the same, including curable powder coating compositions, are disclosed. Also disclosed is a novel process for preparing pyrrolidone urea.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 9, 1997
    Assignee: Cytec Technology Corp.
    Inventors: Balwant Singh, Laurence W. Chang, Larry S. Anderson, Stephen F. Donovan
  • Surface-modified polyacrylonitrile beads
    Patent number: 5418284
    Abstract: A bead composition is disclosed herein which comprises a core of a polyacrylonitrile homopolymer or copolymer and a surface of pendant N-haloamide groups. Also disclosed is a process for the production of said composition.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: May 23, 1995
    Assignee: Cytec Technology Corp.
    Inventors: Laurence W. Chang, Larry S. Anderson, David A. Ley
  • Porous acrylonitrile polymer substrate for bonding ligands and separating biologically active substances
    Patent number: 5306632
    Abstract: A porous shaped substrate such as a porous bead is formed from polyacrylonitrile or a copolymer thereof containing nitrile groups. The substrate has a hydrophilic surface containing amide groups constituting about 1.8 mole percent to less than about 15 mole percent of the total nitrile groups, and containing no amide or carboxyl groups. The substrate is substantially non-swellable in water and is able to resist pressures in a columnar bed of up to about 3000 psi without collapsing. In forming the amide groups, polyacrylonitrile or copolymer thereof containing nitrile groups, an alkaline catalyst such as sodium hydroxide and a nonsolvent for the substrate such as methanol are combined to form a suspension. A peroxide is added to the suspension and the suspension is heated to hydrolyze nitrile groups to amide groups. Succinylated aminoethyl groups or activated carboxyl groups can be formed on the substrate and a bioactive ligand such as p-aminobenzamidine covalently bonded to the substrate.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: April 26, 1994
    Assignee: Cytec Technology Corp.
    Inventors: Larry S. Anderson, Michael T. Cooke, David A. Ley
  • Surface-modified polyacrylonitrile fibrous substrates
    Patent number: 5306782
    Abstract: A surface-modified fibrillated fiber composition is disclosed herein which comprises polyacrylonitrile homopolymer or copolymer and a surface of pendant N-haloamide groups. Also disclosed is a process for the production of said composition.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: April 26, 1994
    Assignee: American Cyanamid Company
    Inventors: Laurence W. Chang, Larry S. Anderson, David A. Ley
  • Surface-modified polyacrylonitrile fibrous substrates
    Patent number: 5284910
    Abstract: A surface-modified fibrillated fiber composition is disclosed herein which comprises polyacrylonitrile homopolymer or copolymer and a surface of pendant N-haloamide groups. Also disclosed is a process for the production of said composition.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: February 8, 1994
    Assignee: American Cyanamid Company
    Inventors: Laurence W. Chang, Larry S. Anderson, David A. Ley
  • Surface-modified polyacrylonitrile substrates
    Patent number: 5284911
    Abstract: A composition is disclosed herein which comprises a core of a polyacrylonitrile homopolymer or copolymer and a surface of N-haloamides. Also disclosed is a process for the production of said composition.
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: February 8, 1994
    Assignee: American Cyanamid Company
    Inventors: Laurence W. Chang, Larry S. Anderson, David A. Ley
  • Surface-modified polyacrylonitrile fibrous substrates
    Patent number: 5270384
    Abstract: A surface-modified fibrillated fiber composition is disclosed herein which comprises polyacrylonitrile homopolymer or copolymer and a surface of pendant N-haloamide groups. Also disclosed is a process for the production of said composition.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: December 14, 1993
    Assignee: American Cyanamid Company
    Inventors: Laurence W. Chang, Larry S. Anderson, David A. Ley
  • Surface-modified polyacrylonitrile beads
    Patent number: 5268421
    Abstract: A bead composition is disclosed herein which comprises a core of a polyacrylonitrile homopolymer or copolymer and a surface of pendant N-haloamide groups. Also disclosed is a process for the production of said composition.
    Type: Grant
    Filed: May 11, 1992
    Date of Patent: December 7, 1993
    Assignee: American Cyanamid Company
    Inventors: Laurence W. Chang, Larry S. Anderson, David A. Ley
  • Surface-modified polyacrylonitrile substrates
    Patent number: 5194512
    Abstract: A composition is disclosed herein which comprises a core of a polyacrylonitrile homopolymer or copolymer and a surface of N-haloamides. Also disclosed is a process for the production of said composition.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: March 16, 1993
    Assignee: American Cyanamid Company
    Inventors: Laurence Wu-Kwang Chang, Larry S. Anderson, David A. Ley
  • Surface-modified polyacrylonitrile fibrous substrates
    Patent number: 5155174
    Abstract: A surface-modified fibrillated fiber composition is disclosed herein which comprises polyacrylonitrile homopolymer or copolymer and a surface of pendant N-haloamide groups. Also disclosed is a process for the production of said composition.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: October 13, 1992
    Assignee: American Cyanamid Company
    Inventors: Laurence W. Chang, Larry S. Anderson, David A. Ley
  • Surface-modified polyacrylonitrile beads
    Patent number: 5137983
    Abstract: A bead composition is disclosed herein which comprises a core of a polyacrylonitrile homopolymer or copolymer and a surface of pendant N-haloamide groups. Also disclosed is a process for the production of said composition.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: August 11, 1992
    Assignee: American Cyanamid Company
    Inventors: Laurence W. Chang, Larry S. Anderson, David A. Ley
  • Surface-modified polyacrylonitrile substrates
    Patent number: 5082904
    Abstract: A composition is disclosed herein which comprises a core of a polyacrylonitrile homopolymer or copolymer and a surface of N-haloamides. Also disclosed is a process for the production of said composition.
    Type: Grant
    Filed: April 13, 1990
    Date of Patent: January 21, 1992
    Assignee: American Cyanamid Company
    Inventors: Laurence W. Chang, Larry S. Anderson, David A. Ley