Patents by Inventor Richard A. Parent

Richard A. Parent 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: 5765851
    Abstract: A storable self-aligning towing assembly which allows universal pivoting about three axes between a towing vehicle and a towed vehicle. The towing assembly is self-supporting.
    Type: Grant
    Filed: February 21, 1996
    Date of Patent: June 16, 1998
    Assignee: Dethmers Manufacturing Company, Inc.
    Inventor: Richard A. Parent
  • Patent number: 5274432
    Abstract: A method and apparatus for monitoring towed vehicles, such as trailers and the like, which are not visible in a rear view mirror of a tow vehicle. The method consists of, firstly, attaching markers to a towed vehicle such that the markers are visible on each side of a towing vehicle to which the towed vehicle is coupled. Secondly, projections are attached to each side of the towing vehicle. The projections are positioned on each side of the towing vehicle so that the projections are in respective linear alignment with the markers when viewed from respective side mounted rear view mirrors of the towing vehicle. When the markers cease to be in linear alignment with the projections during driving, the driver of the towing vehicle is alerted that there has been an alteration in the positioning of the towed vehicle relative to the towing vehicle, thereby indicating a problem requiring a stoppage of the vehicles.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: December 28, 1993
    Inventor: Richard A. Parent
  • Patent number: 4225647
    Abstract: Various objects may be maintained in their original condition or protected from further damage by physical, chemical, and biological forces by applying thereto thin, continuous, impervious coatings of vapor-deposited poly(p-xylylene) polymer or derivatives thereof. By the invention, it is possible to protect paintings, photographs, documents, articles of sculpture, silver objects, coins, fishing hooks and lures, marine fittings and hardware, batteries, fuel cells, automotive parts, water pollution control devices, logic circuits, electrical components, electric motors and parts, light bulbs, ammunitions, fireworks, glass items, decorative items, timepieces, and decorative wrought iron grillwork.
    Type: Grant
    Filed: December 2, 1977
    Date of Patent: September 30, 1980
    Inventor: Richard A. Parent
  • Patent number: 4059444
    Abstract: A method and ink composition for development of an electrostatic latent image with liquid developer is disclosed. The liquid developer has a viscosity suitable for convenient application to an imaged surface in the development of latent electrostatic images and has improved conductivity resulting from incorporating conductivity control agents in the form of quaternary ammonium compounds which are soluble in the carrier of the ink composition. The conductive ink composition comprises a coloring agent, optionally a binder and a dispersing agent, a carrier and a quaternary ammonium compound soluble in the liquid carrier.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: November 22, 1977
    Assignee: Xerox Corporation
    Inventors: Chin H. Lu, Richard A. Parent
  • Patent number: 4014696
    Abstract: A transparency is disclosed, which is suitable for use in a multicolored xerographic reproduction process comprising a transparent, thermoplastic film sheet having at least one surface coated with a long chain aliphatic ester. The ester coated transparency, when used in a multicolored electrostatic copying process improves adhesion of the multicolored image thereon and permits reproduction of colors and color densities in said image which correspond to the multicolored original.
    Type: Grant
    Filed: February 5, 1975
    Date of Patent: March 29, 1977
    Assignee: Xerox Corporation
    Inventor: Richard A. Parent
  • Patent number: 3989865
    Abstract: A transparency is disclosed, which is suitable for use in a multicolored xerographic reproduction process comprising a transparent, thermoplastic film sheet having at least one surface treated with organic amine compounds or salts thereof. The treated transparency, when used in a multicolored electrostatic copying process improves adhesion of the multicolored image thereon and permits reproduction of colors and color densities in said image which correspond well enough to the multicolored original copied.
    Type: Grant
    Filed: June 5, 1974
    Date of Patent: November 2, 1976
    Assignee: Xerox Corporation
    Inventor: Richard A. Parent
  • Patent number: 3985663
    Abstract: A method and ink composition for development of an electrostatic latent image with liquid developer is disclosed. The liquid developer has a viscosity suitable for convenient application to an imaged surface in the development of latent electrostatic images and has improved conductivity resulting from incorporating conductivity control agents in the form of quaternary ammonium compounds which are soluble in the carrier of the ink composition. The conductive ink composition comprises a coloring agent, optionally a binder and a dispersing agent, a carrier and a quaternary ammonium compound soluble in the liquid carrier.
    Type: Grant
    Filed: March 14, 1974
    Date of Patent: October 12, 1976
    Assignee: Xerox Corporation
    Inventors: Chin H. Lu, Richard A. Parent
  • Patent number: 3966467
    Abstract: A transparency is disclosed, which is suitable for use in a multicolored xerographic reproduction process comprising a transparent, thermoplastic film sheet having at least one surface coated with a material selected from the group of long chain aliphatic hydrocarbons. The coated transparency, when used in a multicolored electrostatic copying process improves adhesion of the multicolored image thereon and permits reproduction of colors and color densities in said image which correspond well to the multicolored original copied.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: June 29, 1976
    Assignee: Xerox Corporation
    Inventor: Richard A. Parent
  • Patent number: 3958990
    Abstract: A transparency is disclosed, which is suitable for use in a multicolored xerographic reproduction process comprising a transparent, thermoplastic film sheet having at least one surface coated with a material selected from the group of nonvolatile amine compounds. The coated transparency, when used in a multicolored electrostatic copying process improves adhesion of the multicolored image thereon and permits reproduction of colors and color densities in said image which correspond well to the copied multicolored original.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: May 25, 1976
    Assignee: Xerox Corporation
    Inventor: Richard A. Parent
  • Patent number: 3947371
    Abstract: An electrostatographic developer mixture comprising finely divided toner particles electrostatically clinging to the surface of larger carrier beads, each of the carrier beads comprising a core particle surrounded by a thin outer layer of a poly(p-xylylene) polymer. Imaging processes of developing electrostatic latent images with the developer mixture are also disclosed.
    Type: Grant
    Filed: July 19, 1973
    Date of Patent: March 30, 1976
    Assignee: Xerox Corporation
    Inventors: Richard A. Parent, H. Ronald Thomas
  • Patent number: 3945823
    Abstract: An electrostatographic developer mixture comprising finely divided toner particles electrostatically clinging to the surface of larger carrier beads, each of the carrier beads comprising a core particle surrounded by a thin outer layer of a poly(p-xylylene) polymer. Imaging processes of developing electrostatic latent images with the developer mixture are also disclosed.
    Type: Grant
    Filed: July 19, 1973
    Date of Patent: March 23, 1976
    Assignee: Xerox Corporation
    Inventors: Richard A. Parent, H. Ronald Thomas
  • Patent number: 3944711
    Abstract: A transparency is disclosed, which is suitable for use in a multicolored xerographic reproduction process comprising a transparent, thermoplastic film sheet having at least one surface coated with a material selected from the group of nonvolatile amine compounds. The coated transparency, when used in a multicolored electrostatic copying process improves adhesion of the multicolored image thereon and permits reproduction of colors and color densities in said image which correspond well to the copied multicolored original.
    Type: Grant
    Filed: May 1, 1974
    Date of Patent: March 16, 1976
    Assignee: Xerox Corporation
    Inventor: Richard A. Parent
  • Patent number: 3944710
    Abstract: A transparency is disclosed, which is suitable for use in a multicolored xerographic reproduction process comprising a transparent, thermoplastic film sheet having at least one surface coated with a material selected from the group of long chain aliphatic hydrocarbons. The coated transparency, when used in a multicolored electrostatic copying process improves adhesion of the multicolored image thereon and permits reproduction of colors and color densities in said image which correspond well to the multicolored original copied.
    Type: Grant
    Filed: May 1, 1974
    Date of Patent: March 16, 1976
    Assignee: Xerox Corporation
    Inventor: Richard A. Parent