Patents by Inventor Ian Gray

Ian Gray 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: 5985636
    Abstract: Anthocyanin containing fractions isolated from tart cherries and exhibiting inhibition of oxidation when introduced into various materials is described. The fractions are particularly useful in high and low moisture foods.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: November 16, 1999
    Assignee: Board of Trustees operating Michigan State University
    Inventors: James Ian Gray, Alden M. Booren, Muraleedharan G. Nair, Gale M. Strasburg, Haibo Wang, Enayat A. Gomaa, Yu-Chen Chang
  • Patent number: 5871332
    Abstract: A centrifugal pump has a rotating shaft (1) with a centrifugal impeller (3) mounted on it. The shaft (1) and impeller (3) are mounted within a stationary casing (7) and a mechanical seal (8) is provided where the shaft (1) passes out through the casing (7). In order to cool rubbing, sealing faces (9, 11) of the seal, fluid is caused to flow along a path from a tip (6) of the impeller, through the casing (7), into a seal chamber (14), through a clearance (15) between a hub (2) of the impeller and the casing (7) and returning through a port (16) in the impeller. In order to act as a vent for and to clear debris from the seal chamber (14), the clearance is located radially outwardly of and remote from the shaft (1). Especially those parts which are moving and are subject to wear can be replaceable.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: February 16, 1999
    Assignee: Ingersoll-Dresser Pump Company
    Inventors: Ian Gray, John Culler, Ronald Palgrave
  • Patent number: 5785131
    Abstract: A borehole drilling apparatus has a jacket attachable to a well head and through which a drill rod passes and which carries pressurized drilling fluid to a working end of the drill rod and out into an annulus of the borehole. The jacket has a drill rod seal and an outlet port leading from the interior of the jacket to a pressure regulator. The pressure regulator comprises an annular space through which fluid can flow from an inlet to an outlet. The annular space is defined between an inner rod and a surrounding elastomer pipe. In use, the elastomer pipe is squeezed radially inwards toward the inner rod by fluid pressure maintained between the outside of the elastomer pipe and a surrounding housing. A sampling system is in communication with the outlet port at a location upstream of the regulator.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: July 28, 1998
    Inventor: Ian Gray
  • Patent number: 5690171
    Abstract: A method and device for stimulating and completing a drilled wellbore in a productive formation. The device comprises a pipe having a plurality of weakened portions and containing a propellant material. When the propellant is ignited it produces rapidly expanding gaseous combustion products which puncture the weakened portions of the pipe. The expanding gas fractures the surrounding formation thereby stimulating the formation to production. The pipe remains in the wellbore and is used for collecting oil and gas from the formation.
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: November 25, 1997
    Inventors: Peter Clive Winch, Ian Gray
  • Patent number: 4610877
    Abstract: The present invention relates to novel immunogens which can be employed in a method for eliminating the offensive odor associated with the preparation of meats derived from uncastrated male pigs. "Boar taint," as the characteristic odor has been termed, can be eliminated, or at least substantially reduced by the administration of novel immunogen compositions which are chemical conjugates formed of certain C.sub.19 .DELTA..sup.16 -steroids and their mixtures with a carrier protein. The immunogens can be administered in conventional forms including a vaccine.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: September 9, 1986
    Assignee: Research Corporation
    Inventors: Albert M. Pearson, Roger I. Brooks, Maynard G. Hogberg, James J. Pestka, J. Ian Gray
  • Patent number: 4444674
    Abstract: Granular detergent compositions comprising an agglomerate of finely-divided organic peroxy acid bleach precursor, and water-soluble or water-dispersible organic binding agent having a melting point of no more than 40.degree. C., and having a surface coating of water-insoluble natural or synthetic silica or silicate. The compositions have improved granular physical characteristics, chemical stability and rate of solution/dispersion characteristics.
    Type: Grant
    Filed: March 17, 1983
    Date of Patent: April 24, 1984
    Assignee: The Procter & Gamble Company
    Inventor: Ian Gray
  • Patent number: 4399049
    Abstract: A detergent additive composition in the form of an extrudate comprising about 75% to about 95% of particulate infusible solids comprising storage-sensitive detergent-additive material and about 5% to about 25% of ethoxylated nonionic surfactant. The storage-sensitive detergent additive material is preferably an organic peroxy acid bleach precursor. When added to detergent compositions, the additive compositions have excellent storage stability and water-dispersibility characteristics.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: August 16, 1983
    Assignee: The Procter & Gamble Company
    Inventors: Ian Gray, Richard G. Harris
  • Patent number: 4321157
    Abstract: Granular laundry compositions comprising a particulate mixture of a water-insoluble natural or synthetic silica or silicate, a finely-divided organic peroxy acid bleach precursor, and an alkoxylated nonionic surfactant. The particulate mixture has a pH in 2% aqueous dispersion of from about pH 2 to about pH 9. The compositions have improved granular physical characteristics, chemical stability and rate of solution/dispersion characteristics. They are useful in bleach activator, bleaching, detergent and laundry additive compositions.
    Type: Grant
    Filed: October 31, 1980
    Date of Patent: March 23, 1982
    Assignee: The Procter & Gamble Company
    Inventors: Richard G. Harris, Ian Gray
  • Patent number: D316224
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: April 16, 1991
    Assignee: The Procter & Gamble Company
    Inventors: Ian Gray, Russell T. Watts, William R. Stewart
  • Patent number: D317407
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: June 11, 1991
    Assignee: The Procter & Gamble Company
    Inventors: Ian Gray, Russell T. Watts, William R. Stewart