Patents Represented by Attorney Peter L. Costas
  • Patent number: 6761089
    Abstract: A double-ended hexagonal shank tool bit for extracting Phillips head or similar screws with damaged heads. One end of the tool shapes the screw head recess to a flared opening. The other end of the tool is tapered with left-hand screw threads and diametrically opposite longitudinal gashes arranged to enable the tool to engage the sides of the shaped recess and remove the screw.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: July 13, 2004
    Assignee: ProQual, LLC
    Inventor: Peter J. Bergamo
  • Patent number: 5524726
    Abstract: An electrically powered cycle has a frame, an axle, a drive wheel, an electric motor, a motor controller, an electric power supply, a power supply charger, and a swing arm pivotally mounts the electric power supply and electric motor on the cycle frame. The drive wheel is rotatably supported on the axle, which, in turn, is supported in the swing arm adjacent the rear end of the cycle. This end of the swing arm is coupled to the shock absorbers which connect the frame to the axle so that the drive wheel moves relative to the frame. The other end of the swing arm is pivotally mounted on the frame. The electric power supply and the electric motor are supported on the swing arm intermediate the ends thereof.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: June 11, 1996
    Assignee: Tenergy L.L.C.
    Inventor: John R. Wright, Jr.
  • Patent number: 4250006
    Abstract: A polymerizable coating composition comprises 35-80 parts of an epoxy prepolymer material and 20-65 parts of a vinyl chloride dispersion polymer together with 0.5-10 percent by weight, based upon the weight of the epoxy prepolymer material, of an onium salt photoinitiator which decomposes upon exposure to electromagnetic radiation to initiate polymerization of the epoxy prepolymer material. The vinyl chloride polymer has a high molecular weight represented by an inherent viscosity of 0.60-1.60 and a particle size of 0.5-20.0 microns. The coating is applied to the surface of a substrate and then exposed to a source of electromagnetic radiation to decompose the photoinitiator and initiate polymerization of the epoxy prepolymer material to a tack-free surface condition in which the vinyl chloride polymer is dispersed within the epoxy polymer. This is desirably effected by maintaining the coating at a temperature of about 50.degree.-90.degree. C. for a limited time following exposure to radiation.
    Type: Grant
    Filed: March 19, 1979
    Date of Patent: February 10, 1981
    Assignee: American Can Company
    Inventors: Joseph M. Guarnery, Dennis E. Kester
  • Patent number: 4250203
    Abstract: Photopolymerizable compositions using sulfonium salt photoinitiators to effect polymerization of cationically polymerizable monomers as essentially the sole polymerizable material additionally include an organic sulfur compound scavenger to reduce or eliminate the sulfur odor generated upon photodecomposition of the sulfonium salt photoinitiator. The scavengers are simultaneously activated by the electromagnetic radiation to react with the organic sulfur compound concurrently generated and are selected from the group consisting of aromatic ketones, benzoin compounds, aryloin oxime compounds, organic peroxide compounds, and benzil compounds.
    Type: Grant
    Filed: August 30, 1979
    Date of Patent: February 10, 1981
    Assignee: American Can Company
    Inventors: Sheldon I. Schlesinger, Dennis E. Kester
  • Patent number: 4247472
    Abstract: A highly effective photoinitiator for cationic polymerization of monomer formulations is prepared by reacting bis-[4-(diphenylsulfonio)phenyl] sulfide bis-halide wherein halide is chloride or bromide in an aqueous solution with a compound having the formula T MF.sub.6 wherein M is one of phosphorus, antimony or arsenic and T is hydrogen or a metal whose halide salt is water soluble. The two compounds react in the aqueous medium to produce a precipitate which includes at least about 50 percent by weight bis-[4-(diphenylsulfonio)phenyl] sulfide bis-MF.sub.6, and this precipitate may be recovered and dried for utilization without further purification if so desired. Purification may be effected by dissolving the dried product in an organic solvent, cooling the solvent to precipitate the impurities, and thereafter recovering relatively pure bis-[d-(diphenylsulfonio)phenyl] sulfide bis-MF.sub.6 by chilling the solvent solution to form a precipitate, and then separating and drying the precipitate.
    Type: Grant
    Filed: July 19, 1979
    Date of Patent: January 27, 1981
    Assignee: American Can Company
    Inventor: William R. Watt
  • Patent number: 4247473
    Abstract: A highly effective photoinitiator for cationic polymerization of monomer formulations is prepared by reacting diphenyl sulfide with chlorine gas in a Friedel-Crafts reaction in an organic solvent to form bis-[4-(diphenylsulfonio)phenyl] sulfide dichloride. This product is recovered and then reacted in an aqueous solution with a compound having the formula T.MF.sub.6 wherein M is one of phosphorus, antimony or arsenic and T is hydrogen or a metal whose halide salt is water soluble. The two compounds react in the aqueous medium to produce a precipitate which includes at least about 50 percent by weight bis-[4-(diphenylsulfonio) phenyl] sulfide bis-MF.sub.6, and this precipitate may be recovered and dried for utilization without further purification if so desired. Purification may be effected by dissolving the dried product in an organic solvent, cooling the solvent to precipitate the impurities, and thereafter recovering relatively pure bis-[4-(diphenylsulfonio) phenyl] sulfide bis-MF.sub.
    Type: Grant
    Filed: July 19, 1979
    Date of Patent: January 27, 1981
    Assignee: American Can Company
    Inventor: Kin-Tai Chang
  • Patent number: 4246298
    Abstract: A method for the high speed coating of various substrates utilizes an epoxy composition containing a radiation-sensitive catalyst precursor which will decompose upon exposure to electromagnetic radiation to provide a Lewis acid effective to induce cationic polymerization of the epoxy composition. The formulation does not require any special epoxy monomeric materials or accelerators and is stable until so exposed. Subsequent to applying the formulation to the substrate, the coating is exposed to electromagnetic radiation and a controlled temperature of 50.degree.-90.degree. C. is maintained in the coating for a limited period of time to effect polymerization of the formulation to a tack free surface condition within a period of less than 30 seconds. Maintenance at the elevated temperature following initiation of irradiation may be for a period of as little as 0.5 second.
    Type: Grant
    Filed: March 14, 1979
    Date of Patent: January 20, 1981
    Assignee: American Can Company
    Inventors: Joseph M. Guarnery, William R. Watt
  • Patent number: 4197174
    Abstract: A highly effective photoinitiator for cationic polymerization of monomer formulations is prepared by reacting diphenyl sulfide with chlorine gas in a Friedel-Crafts reaction in an organic solvent to form bis-[4-(diphenylsulfonio)phenyl] sulfide dichloride. This product is recovered and then reacted in an aqueous solution with a compound having the formula T.MF.sub.6 wherein M is one of phosphorus, antimony or arsenic and T is hydrogen or a metal whose halide salt is water soluble. The two compounds react in the aqueous medium to produce a precipitate which includes at least about 50 percent by weight bis-[4-(diphenylsulfonio) phenyl] sulfide bis-MF.sub.6, and this precipitate may be recovered and dried for utilization without further purification if so desired. Purification may be effected by dissolving the dried product in an organic solvent, cooling the solvent to precipitate the impurities, and thereafter recovering relatively pure bis-[4-(diphenylsulfonio)phenyl] sulfide bis-MF.sub.
    Type: Grant
    Filed: March 14, 1979
    Date of Patent: April 8, 1980
    Assignee: American Can Company
    Inventor: Kin-Tai Chang
  • Patent number: D250001
    Type: Grant
    Filed: May 5, 1977
    Date of Patent: October 24, 1978
    Assignee: Woodland Machine & Die Company
    Inventor: John Shenuski
  • Patent number: D250169
    Type: Grant
    Filed: May 5, 1977
    Date of Patent: November 7, 1978
    Assignee: Woodland Machine & Die Company
    Inventor: John Shenuski
  • Patent number: D253428
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: November 13, 1979
    Assignee: The Stanley Works
    Inventor: William J. Hildebrandt
  • Patent number: D253578
    Type: Grant
    Filed: August 24, 1977
    Date of Patent: December 4, 1979
    Inventor: Stephen E. D. Fournier
  • Patent number: D253868
    Type: Grant
    Filed: February 24, 1978
    Date of Patent: January 8, 1980
    Inventor: Anthony Mancarella
  • Patent number: D254739
    Type: Grant
    Filed: December 2, 1977
    Date of Patent: April 15, 1980
    Inventor: Gregory W. Bailey
  • Patent number: D254952
    Type: Grant
    Filed: November 2, 1977
    Date of Patent: May 13, 1980
    Assignee: The Stanley Works
    Inventors: William J. Hildebrandt, Richard H. Rathbun
  • Patent number: D256321
    Type: Grant
    Filed: December 22, 1977
    Date of Patent: August 12, 1980
    Inventor: Anthony Mancarella
  • Patent number: D258317
    Type: Grant
    Filed: August 28, 1978
    Date of Patent: February 17, 1981
    Assignee: Pyramid Plastics, Inc.
    Inventor: Raymond E. Portyrata
  • Patent number: D600459
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: September 22, 2009
    Assignee: Corbin Pacific, Inc.
    Inventor: Michael W. Hanagan
  • Patent number: D608266
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: January 19, 2010
    Assignee: Samson Motorcycle Products, Inc.
    Inventor: Kenneth E. Price
  • Patent number: D408253
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: April 20, 1999
    Assignee: The Stanley Works Limited
    Inventor: Stephen Rowlay