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).
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Patent number: 5765851Abstract: 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: GrantFiled: February 21, 1996Date of Patent: June 16, 1998Assignee: Dethmers Manufacturing Company, Inc.Inventor: Richard A. Parent
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Patent number: 5274432Abstract: 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: GrantFiled: September 18, 1992Date of Patent: December 28, 1993Inventor: Richard A. Parent
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Patent number: 4225647Abstract: 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: GrantFiled: December 2, 1977Date of Patent: September 30, 1980Inventor: Richard A. Parent
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Patent number: 4059444Abstract: 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: GrantFiled: July 19, 1976Date of Patent: November 22, 1977Assignee: Xerox CorporationInventors: Chin H. Lu, Richard A. Parent
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Patent number: 4014696Abstract: 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: GrantFiled: February 5, 1975Date of Patent: March 29, 1977Assignee: Xerox CorporationInventor: Richard A. Parent
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Patent number: 3989865Abstract: 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: GrantFiled: June 5, 1974Date of Patent: November 2, 1976Assignee: Xerox CorporationInventor: Richard A. Parent
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Patent number: 3985663Abstract: 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: GrantFiled: March 14, 1974Date of Patent: October 12, 1976Assignee: Xerox CorporationInventors: Chin H. Lu, Richard A. Parent
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Patent number: 3966467Abstract: 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: GrantFiled: April 17, 1975Date of Patent: June 29, 1976Assignee: Xerox CorporationInventor: Richard A. Parent
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Patent number: 3958990Abstract: 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: GrantFiled: April 17, 1975Date of Patent: May 25, 1976Assignee: Xerox CorporationInventor: Richard A. Parent
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Patent number: 3947371Abstract: 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: GrantFiled: July 19, 1973Date of Patent: March 30, 1976Assignee: Xerox CorporationInventors: Richard A. Parent, H. Ronald Thomas
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Patent number: 3945823Abstract: 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: GrantFiled: July 19, 1973Date of Patent: March 23, 1976Assignee: Xerox CorporationInventors: Richard A. Parent, H. Ronald Thomas
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Patent number: 3944711Abstract: 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: GrantFiled: May 1, 1974Date of Patent: March 16, 1976Assignee: Xerox CorporationInventor: Richard A. Parent
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Patent number: 3944710Abstract: 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: GrantFiled: May 1, 1974Date of Patent: March 16, 1976Assignee: Xerox CorporationInventor: Richard A. Parent