Patents by Inventor John W. Brook

John W. Brook 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).

  • Cementitious compositions
    Patent number: 5556458
    Abstract: A cementitious composition comprising(a) a cementitious material;(b) a fly ash which has a calcium oxide content of from 15-45% by weight;(c) a hydroxycarboxylic acid; and(d) a water-soluble source of alkali metal ions.The compositions are useful as concretes, grouts and mortars.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: September 17, 1996
    Assignee: Sandoz Ltd.
    Inventors: John W. Brook, David F. Factor, Frederick D. Kinney, Celeste L. McCallen, Andrea M. Young
  • Cementitious compositions containing fly ash
    Patent number: 5536310
    Abstract: A cementitious composition comprising(A) 10-30 parts cementitious material;(B) 50-80 parts fly ash weight; and(C) 1.5-8 parts hydroxycarboxylic acid and/or salt thereof.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: July 16, 1996
    Assignee: Sandoz Ltd.
    Inventors: John W. Brook, David F. Factor, Frederick D. Kinney, Celeste L. McCallen, Andrea M. Young
  • Concrete admixture compositions
    Patent number: 5176753
    Abstract: A chloride-free admixture for use as a cold weather (e.g., 13.degree. F. to 40.degree. F.) concrete set accelerator. The admixtures comprise;1) at least one soluble inorganic salt having freezing point depressant properties,2) at least one water reducing dispersant, e.g., superplasticizer,3) at least one inorganic early set and strength accelerator, and optionally,4) at least one inorganic set accelerator.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: January 5, 1993
    Inventor: John W. Brook
  • Orifice ring ion beam neutralizer
    Patent number: 4933546
    Abstract: A beam of negatively charged ions is neutralized by impinging jets which dislodge elctrode electrons from the ions. Gas jets are created by orifices circumferentially located around a ring. The symmetrical radial distribution of the orifices does not create a net radial thrust on the ring, which is an important consideration in low-gravity outer space. Further, maximized gas dynamics creates a neutralized beam with a uniform gas density at the exit thereof and an optimized neutralized ion fraction, as compared with the population of ions in the introduced beam.
    Type: Grant
    Filed: August 23, 1988
    Date of Patent: June 12, 1990
    Assignee: Grumman Aerospace Corporation
    Inventors: Eric P. Muntz, John W. Brook, Vincent S. Calia
  • Stabilizers for polyvinyl chloride
    Patent number: 3943081
    Abstract: This invention comprises use of polyvinyl resin stabilizers, or alkaline earth metal soap and/or phenolate complexes or solutions with soluble zinc chloride and hydroxy compounds (or other suitable solutions of zinc chloride) and organophosphites. These combinations have not previously been used for this purpose.
    Type: Grant
    Filed: July 2, 1974
    Date of Patent: March 9, 1976
    Assignee: Claremont Polychemical Corporation
    Inventor: John W. Brook