Patents by Inventor David Gill

David Gill 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: 5986550
    Abstract: A method of labeling, authenticating and/or identifying a paper, credit/identification card, bank note, article or any other object using both nuclear magnetic resonance in magnetically ordered materials and nuclear quardrupole resonance phenomena as well as other phenomena of electric/magnetic dipole or tunnel transitions between Stark-Zeeman sub-levels, frequencies of which belong to the radio-frequency band. A minor amount of at least one authenticating substance is added to the object, the substance having a strong unique and identifiable response in radio-frequency domain at room temperature, with the spectroscopy being performed in the absence of any supported external static field, and with any specific response (intensity, line width, line shape, splittings, free induction decay, spin echoes or their combinations) being used as a criterion for discrimination.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: November 16, 1999
    Assignee: Micro Tag Temed Ltd.
    Inventors: Erich I. Rapaport, Yuri Rosenfeld, David Gill, Lev Goldfeld, Alexander Shames, Vladimir Lyandres
  • Patent number: 5883282
    Abstract: There is provided a 3-(3-aryloxyphenyl)-1-(substituted methyl)-s-triazine-2,4,6-oxo or thiotrione compound having the structural formula I ##STR1## Further provided are a composition and a method comprising that compound for the control of undesirable plant species.
    Type: Grant
    Filed: May 20, 1997
    Date of Patent: March 16, 1999
    Assignee: American Cyanamid Company
    Inventors: Alvin Donald Crews, Jr., Philip Mark Harrington, Gary Mitchell Karp, Simon David Gill, Petra Dieterich
  • Patent number: 5871011
    Abstract: Apparatus (10) is provided for controlled delivery of gas to a patient. The apparatus is particularly useful for delivery of anaesthetic gases in circumstances where the patient is conscious and able to receive gas upon demand and also where ventilation is poor. The apparatus (10) includes an outlet duct (40) for conveying gas from a gas supply (25) to the patient. A waste gas inlet duct (60) is also provided for receiving gas exhaled by the patient. This is connectable to a suction source (at 35) for scavenging the waste gas. The waste gas inlet duct (60) is arranged so that it can receive gas exhaled by the patient with the outlet duct (via a valve or other diverting means (80)) and around the outlet duct (as guided by shroud (70)).
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: February 16, 1999
    Assignee: Barnsley District General Hospital NHS Trust
    Inventors: Penelope J. Howell, John O'Sullivan, David Gill
  • Patent number: 5670641
    Abstract: There is provided a 3-(3-aryloxyphenyl)-1-(substituted methyl)-s-triazine-2,4,6-oxo or thiotrione compound having the structural formula I ##STR1## Further provided are a composition and a method comprising that compound for the control of undesirable plant species.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: September 23, 1997
    Assignee: American Cyanamid Company
    Inventors: Alvin Donald Crews, Jr., Philip Mark Harrington, Gary Mitchell Karp, Simon David Gill, Petra Dieterich
  • Patent number: 5654256
    Abstract: There is provided a 3-(3-aryloxyphenyl)-1-(substituted methyl)-s-triazine-2,4,6-oxo or thiotrione compound having the structural formula I ##STR1## Further provided are a composition and a method comprising that compound for the control of undesirable plant species.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: August 5, 1997
    Assignee: American Cyanamid Company
    Inventors: Alvin Donald Crews, Jr., Philip Mark Harrington, Simon David Gill
  • Patent number: 5224715
    Abstract: An improved metal-to-metal seal of a generally U shaped configuration which utilizes an enlarged seal portion on the interior and exterior of the inner and outer seal legs to effect an initial seal. The initial interference of the seal legs is maintained by disposing a solid support ring in the annulus between the seal legs with holes in the support ring to prevent pressure lock and to balance pressure distribution within the seal. The invention is shown in a unidirectional form with a single pair of seal legs extending axially from an annular base and in a bidirectional form with a pair of seal legs extending axially in both directions from an annular base. An alternative form of the invention discloses a support member of U shaped configuration which allows greater flexibility in the seal legs while maintaining initial sealing contact. This support member also has holes to prevent pressure lock and to balance pressure distribution within the seal.
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: July 6, 1993
    Assignee: Cooper Industries, Inc.
    Inventors: Stephen Downes, David Gill
  • Patent number: 5066029
    Abstract: An improved seal for sealing across an annulus between an inner cylindrical sealing surface and an outer cylindrical sealing surface. The seal provides a body and a flange spaced therefrom with an annular flexible arch extending between the body and the flange and having a taper of its thickness so that its thinnest section is at the mid point of the arch and within its sealing area. A suitable sealing is provided to seal against the surface opposite to the surface against which the flexible annular arch seals so that there is a complete sealing across the annulus. This seal is suitable for piston rod sealing, valve stem sealing and for sealing in the annulus between two tubular well members.
    Type: Grant
    Filed: October 26, 1990
    Date of Patent: November 19, 1991
    Assignee: Cooper Industries, Inc.
    Inventor: David Gill
  • Patent number: 4554740
    Abstract: The disclosure illustrates a pantograph comprising a pair of parallel guides slideably and pivotally mounted on a base support which is mounted to a table. A saddle supporting a stylus is mounted on one end of the guides and another saddle slideable on the guides mounts a tool such as a router. A series of parallel adjustable links interconnect the base, tool mounting saddle and stylus saddle, so that movement of the tool saddle is a predetermined scale of the stylus movement. The scale is set by the geometry of the links. The pantograph may also be used to make three dimensional reproductions of an object.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: November 26, 1985
    Inventor: David Gill
  • Patent number: 3948722
    Abstract: A dimensionally stable warp knitted paper maker's felt includes a plurality of interlocked yarns having a weight per unit length equivalent to at least 500 denier. Laid-in yarns and/or resin may be used to impart the desired stability to the felt.
    Type: Grant
    Filed: July 29, 1974
    Date of Patent: April 6, 1976
    Assignee: Scapa-Porritt Limited
    Inventors: John Brian Wheeldon, David Gill