Patents by Inventor Derek Alexander

Derek Alexander 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).

  • Publication number: 20070170018
    Abstract: A disc brake assembly is provided that includes a disc, a caliper, and a piston having a rear end slidably mounted in a bore in the caliper, a front end that faces the disc, and an inner axial surface. A brake pad is disposed between the piston and the disc. The brake pad has 1) a back plate having front and rear surfaces and 2) a friction pad mounted on the front surface of the back plate. A structure is situated on the rear surface of the back plate. The assembly also has an improved spring clip for holding the brake pad in the assembly. The spring clip is configured to be connectable to the structure on the rear surface of the back plate and engageable with the inner axial surface of the piston.
    Type: Application
    Filed: November 28, 2006
    Publication date: July 26, 2007
    Applicant: HB Performance Systems, Inc.
    Inventor: Derek Alexander
  • Publication number: 20070163851
    Abstract: A brake caliper includes a housing having at least one bore formed therein. A coolant passage is formed through the housing and extends radially outwardly from the bore and is fluidically coupled thereto. The coolant passage can accept a coolant, which can be actively moved or it can be passively moved. The brake caliper also has at least one piston slidably mounted in the bore. The piston can be made from a thermally conductive material. The piston can include a wall that is thicker at a first end there of than at the second end thereof. The thicker end is that which contacts a brake pad. A method of cooling a disc brake assembly is also provided. The coolant passage takes heat out of the disc brake assembly before it reaches the brake fluid. Heat is dissipated by thermal exchange into the caliper, coolant, and/or the atmosphere.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 19, 2007
    Inventor: Derek Alexander
  • Patent number: 7238833
    Abstract: A process for the production of an aromatic carboxylic acid comprising contacting in the presence of a catalyst, within a continuous flow reactor, one or more precursors of the aromatic carboxylic acid with an oxidant, such contact being effected with said precursor(s) and the oxidant in an aqueous solvent comprising water under supercritical conditions or near supercritical conditions close to the supercritical point such that said one or more precursors, oxidant and aqueous solvent constitute a substantially single homogeneous phase in the reaction zone, wherein the contact of at least part of said precursor with said oxidant is contemporaneous with contact of said catalyst with at least part of said oxidant.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: July 3, 2007
    Assignee: Invista North America S.A.R.L.
    Inventors: Derek Alexander Graham, Paul Anthony Hamley, Raymond Oliver, Martyn Poliakoff, Duncan C. Woodcock, Thomas Iikenhans
  • Publication number: 20040199006
    Abstract: A process for the production of an aromatic carboxylic acid comprising contacting in the presence of a catalyst, within a continuous flow reactor, one or more precursors of the aromatic carboxylic acid with an oxidant, such contact being effected with said precursor(s) and the oxidant in an aqueous solvent comprising water under supercritical conditions or near supercritical conditions close to the supercritical point such that said one or more precursors, oxidant and aqueous solvent constitute a substantially single homogeneous phase in the reaction zone, wherein the contact of at least part of said precursor with said oxidant is contemporaneous with contact of said catalyst with at least part of said oxidant.
    Type: Application
    Filed: April 28, 2004
    Publication date: October 7, 2004
    Applicant: E. I. duPont de Nemours and Company
    Inventors: Derek Alexander Graham, Paul Anthony Hamley, Raymond Oliver, Martyn Poliakoff, Duncan C. Woodcock, Thomas Ilkenhans
  • Patent number: 6765113
    Abstract: A process for the production of an aromatic carboxylic acid comprising contacting in the presence of a catalyst, within a continuous flow reactor, one or more precursors of the aromatic carboxylic acid with an oxidant, such contact being effected with said precursor(s) and the oxidant in an aqueous solvent comprising water under supercritical conditions or near supercritical conditions close to the supercritical point such that said one or more precursors, oxidant and aqueous solvent constitute a substantially single homogeneous phase in the reaction zone, wherein the contact of at least part of said precursor with said oxidant is contemporaneous with contact of said catalyst with at least part of said oxidant.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: July 20, 2004
    Assignee: E.I. Du Pont de Nemours and Company
    Inventors: Derek Alexander Graham, Paul Anthony Hamley, Raymond Oliver, Martyn Poliakoff, Duncan Woodcock, Thomas Ilkenhans
  • Patent number: 6416600
    Abstract: A process for the production of an exothermically reacting composition, such as a propellant or explosive, containing at least one normally solid reactive constituent comprises the steps of: forming a uniform dispersion of the ingredients of the said composition in a carrier liquid; forming droplets of said dispersion; feeding said droplets into a cooling medium at a temperature below the freezing point of said carrier liquid to form solidified droplets; and freeze-drying said solidifed droplets.
    Type: Grant
    Filed: August 17, 1995
    Date of Patent: July 9, 2002
    Assignee: Imperial Chemical Industries plc
    Inventors: Kay Heather Clarke, Derek Alexander Graham, Ray Oliver
  • Publication number: 20020028968
    Abstract: A process for the production of an aromatic carboxylic acid comprising contacting in the presence of a catalyst, within a continuous flow reactor, one or more precursors of the aromatic carboxylic acid with an oxidant, such contact being effected with said precursor(s) and the oxidant in an aqueous solvent comprising water under supercritical conditions or near supercritical conditions close to the supercritical point such that said one or more precursors, oxidant and aqueous solvent constitute a substantially single homogeneous phase in the reaction zone, wherein the contact of at least part of said precursor with said oxidant is contemporaneous with contact of said catalyst with at least part of said oxidant.
    Type: Application
    Filed: July 13, 2001
    Publication date: March 7, 2002
    Inventors: Derek Alexander Graham, Paul Anthony Hamley, Thomas Ilkenhans, Raymond Oliver, Martyn Poliakoff, Duncan C. Woodcock
  • Patent number: 6277475
    Abstract: An ink transfer band has (a) a microporous flexible substrate; (b) one or more optional intermediate layers; and (c) one or more layers of a transfer ink. The ink transfer ribbon is characterized in that the back side of the substrate has a surface roughness depth Rt of at least approximately 400 nm and an average roughness value Ra of at least approximately 40 nm. This transfer ribbon has the advantage of solving in a simple and economical manner the problems related to oil migration and static electricity.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: August 21, 2001
    Assignee: Pelikan Produktions AG
    Inventors: Ian W. Hogarth, Robert Ivan Wilkinson, Derek Alexander McDonald
  • Patent number: 5972266
    Abstract: The resistant to biological degradation of composite wood products is improved by applying a suitable aqueous dispersion of zinc borate onto the fibers to uniformly distribute and to adhere the zinc borate to the strands of the wood composite, applying a suitable adhesive to the wood strands, forming a strand lay-up and consolidating a lay-up under heat and pressure to form a consolidated product with zinc borate uniformly distributed therethrough.
    Type: Grant
    Filed: February 26, 1998
    Date of Patent: October 26, 1999
    Assignee: Trus Joist MacMillan a Limited Partnership
    Inventors: David Fookes, Marek Jan Gnatowski, Robert Leeson Pike, Derek Alexander Templeton