Patents by Inventor Peter B. Logsdon

Peter B. Logsdon 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).

  • Evaporative coolant for topical anesthesia comprising hydrofluorocarbons and/or hydrochlorofluorocarbons
    Patent number: 6235265
    Abstract: Evaporative coolants suitable for use as cold spray topical anesthetics containing hydrofluorocarbons and/or hydrochlorofluorocarbons, preferably 1,1,1,3,3-pentafluoropropane, either alone or in combination with other hydrofluorocarbon and/or hydrochlorofluorocarbon components. The invention includes a system for cooling skin using the coolant and a device for spraying the coolant, as well as a method of cooling or topically anesthetizing the skin comprising spraying such evaporative coolants thereon.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: May 22, 2001
    Assignee: AlliedSignal Inc.
    Inventor: Peter B. Logsdon
  • Azeotrope-like compositions of trifluoromethane and carbon dioxide or hexafluoroethane and carbon dioxide
    Patent number: 5340490
    Abstract: Azeotrope-like compositions comprising trifluoromethane and carbon dioxide or trifluromethane, hexafluoroethane and carbon dioxide are stable and have utility as refrigerants for heating and cooling as well as fire extinguishing compositions.
    Type: Grant
    Filed: July 14, 1993
    Date of Patent: August 23, 1994
    Assignee: AlliedSignal Inc.
    Inventors: Barbara R. Decaire, Peter B. Logsdon, Earl A. E. Lund, Ian R. Shankland, Rajiv R. Singh, David P. Wilson, Raymond H. P. Thomas
  • Azeotrope-like compositions of 1,1,2,3,3-pentafluoropropane
    Patent number: 5219490
    Abstract: Azeotrope like compositions comprising 1,1,2,3,3,-pentafluoropropane and methanol or ethanol and optionally nitromethane are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards and dry cleaning.
    Type: Grant
    Filed: April 27, 1992
    Date of Patent: June 15, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Rajat S. Basu, Peter B. Logsdon, Leonard M. Stachura, Earl A. E. Lund
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane, ethanol and cyclopentane
    Patent number: 5190685
    Abstract: Stable azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane, ethanol and cyclopentane which are useful in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: March 2, 1993
    Assignee: Allied-Signal Inc.
    Inventors: Peter B. Logsdon, Leonard M. Stachura, Ellen L. Swan, Rajat S. Basu
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane, 1,2-dichloroethylene, and optionally methanol or ethanol
    Patent number: 5137651
    Abstract: Azeotrope-like compositions comprising 1,1,-dichloro-1-fluoroethane, dichlorotrifluoroethane, 1,2-dichloroethylene, and optionally ethanol or methanol are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: August 11, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Leonard M. Stachura, Ellen L. Swan, Peter B. Logsdon, Rajat S. Basu
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; methanol; and alkane having 5 or 6 carbon atoms
    Patent number: 5124063
    Abstract: Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; methanol; and alkane having 5 or 6 carbon atoms are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards and dry cleaning.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: June 23, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Peter B. Logsdon, Ellen L. Swan, Leonard M. Stachura, Rajat S. Basu
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; ethanol; and alkane having 5 or 6 carbon atoms
    Patent number: 5124064
    Abstract: Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; ethanol; and alkane having 5 or 6 carbon atoms are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards and dry cleaning.
    Type: Grant
    Filed: April 23, 1991
    Date of Patent: June 23, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Peter B. Logsdon, Ellen L. Swan, Leonard M. Stachura, Rajat S. Basu
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; ethanol; and alkene having 5 carbon atoms
    Patent number: 5122294
    Abstract: Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; ethanol; and alkene having 5 carbon atoms are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards and dry cleaning.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: June 16, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Peter B. Logsdon, Ellen L. Swan, Leonard M. Stachura, Rajat S. Basu
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; methanol; and alkene having 5 carbon atoms
    Patent number: 5120461
    Abstract: Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; methanol; and alkene having 5 carbon atoms are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards and dry cleaning.
    Type: Grant
    Filed: August 21, 1990
    Date of Patent: June 9, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Peter B. Logsdon, Ellen L. Swan, Leonard M. Stachura, Rajat S. Basu
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane, ethanol and a mono- or di-chlorinated C2 or C3 alkane
    Patent number: 5085796
    Abstract: Stable azeotrope-like compositions comprising 1,1-dichloro-1-fluorethane, dichlorotrifluoroethane, ethanol, and a mono- or di-chlorinated C.sub.2 or C.sub.3 alkane which are useful in a variety of industrial cleaning applications.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: February 4, 1992
    Assignee: Allied-Signal Inc.
    Inventors: Leonard M. Stachura, Peter B. Logsdon, Ellen L. Swan, Rajat S. Basu
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; and methyl formate
    Patent number: 5049301
    Abstract: Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; and methyl formate are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: September 17, 1991
    Assignee: Allied-Signal Inc.
    Inventors: Peter B. Logsdon, Ellen L. Swan, Leonard M. Stachura, Rajat S. Basu
  • Azeotrope-like compositions of 1,1-dichoro-1-fluoroethane; dichlorotrifluoroethane; and alkane or cycloalkane having 5 carbon atoms
    Patent number: 5026502
    Abstract: Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; and alkane or cycloalkane having 5 carbon atoms are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards and dry cleaning and as blowing agents.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: June 25, 1991
    Assignee: Allied-Signal Inc.
    Inventors: Peter B. Logsdon, Ellen L. Swan, Leonard M. Stachura, Rajat S. Basu
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; and dichloromethane
    Patent number: 5026501
    Abstract: Azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane; dichlorotrifluoroethane; and dichloromethane are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: June 25, 1991
    Assignee: Allied-Signal Inc.
    Inventors: Ellen L. Swan, Peter B. Logsdon, Leonard M. Stachura, Rajat S. Basu
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane, methanol and a mono- or di-chlorinated C.sub.2 or C.sub.3 alkane
    Patent number: 5024781
    Abstract: Stable azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane, methanol, and a mono- or di-chlorinated C.sub.2 or C.sub.3 alkane which are useful in a variety of industrial cleaning applications.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: June 18, 1991
    Assignee: Allied-Signal Inc.
    Inventors: Peter B. Logsdon, Leonard M. Stachura, Ellen L. Swan, Rajat S. Basu
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane, methanol and cyclopentane
    Patent number: 4994201
    Abstract: Stable azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane, methanol and cyclopentane which are useful in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: February 19, 1991
    Assignee: Allied-Signal Inc.
    Inventors: Leonard M. Stachura, Peter B. Logsdon, Ellen L. Swan, Rajat S. Basu
  • Azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane and a mono- or di-chlorinated C.sub.2 or C.sub.3 alkane
    Patent number: 4960535
    Abstract: Stable azeotrope-like compositions comprising 1,1-dichloro-1-fluoroethane, dichlorotrifluoroethane and a mono- or di-chlorinated C.sub.2 or C.sub.3 alkane which are useful in a variety of industrial cleaning applications including cold cleaning and defluxing of printed circuit boards.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: October 2, 1990
    Assignee: Allied-Signal Inc.
    Inventors: Peter B. Logsdon, Leonard M. Stachura, Ellen L. Swan, Rajat S. Basu