Patents by Inventor Ronald Swidler
Ronald Swidler 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: 8158207Abstract: This invention provides compositions and methods to durably increase or decrease the wetting properties of a surface. In certain embodiments the methods utilize a polyquaternary ammonium compound to decrease wettability of the surface or a cationic polysaccharide to increase wettability of the surface.Type: GrantFiled: May 21, 2008Date of Patent: April 17, 2012Assignee: Cal-West Specialty Coatings, Inc.Inventor: Ronald Swidler
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Publication number: 20090101168Abstract: This invention provides compositions and methods to durably increase or decrease the wetting properties of a surface. In certain embodiments the methods utilize a polyquaternary ammonium compound to decrease wettability of the surface or a cationic polysaccharide to increase wettability of the surface.Type: ApplicationFiled: May 21, 2008Publication date: April 23, 2009Applicant: CAL WEST SPECIALTY COATINGS, INC.Inventor: RONALD SWIDLER
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Patent number: 6124044Abstract: Methods are provided for protecting exterior surfaces of automobiles and other products, or components of products, against abrasion, abrasive dust, water, acid rain, etc. The methods involve applying to a surface a protective coating composition comprising an emulsion selected from the group consisting of a vinyl-acrylic copolymer emulsion and a vinyl acetate-ethylene emulsion. The emulsion is dried to form a water-resistant protective coating that can be removed from the underlying surface by peeling when no longer desired.Type: GrantFiled: October 27, 1995Date of Patent: September 26, 2000Assignee: Cal-West Equipment Company, Inc.Inventor: Ronald Swidler
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Patent number: 6117485Abstract: A vehicle masking material and method of use. The masking material in one embodiment includes a dextrin, a plasticizer, and water. The masking material may additionally include a surfactant. The masking material is applied to a surface which is to be protected from paint overspray or other coating processes, allowed to dry, and the surface is coated (e.g. with paint). After drying of the paint, or other coating, the masking material is removed by water washing.Type: GrantFiled: July 24, 1998Date of Patent: September 12, 2000Assignee: Cal-West Equipment Company, Inc.Inventors: Edward W. Woodhall, Ronald Swidler
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Patent number: 5876791Abstract: A vehicle masking material and method of use. The masking material in one embodiment includes a dextrin, a plasticizer, and water. The masking material may additionally include a surfactant. The masking material is applied to a surface which is to be protected from paint overspray or other coating processes, allowed to dry, and the surface is coated (e.g. with paint). After drying of the paint, or other coating, the masking material is removed by water washing.Type: GrantFiled: February 1, 1995Date of Patent: March 2, 1999Assignee: Cal-West Equipment Co., Inc.Inventors: Edward W. Woodhall, Ronald Swidler
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Patent number: 5866199Abstract: This invention provides for primer/masking compositions that have differential adhesion properties for glass-like and non-glass surfaces. The compositions are used in a method of applying a finish to a non-glass surface which resides in proximity to a glass-like surface without substantially overcoating the glass-like surface. The method involves applying to the glass-like surface a primer/masking composition comprising a vinyl chloride copolymer emulsion, a coalescer, and a surfactant; applying the finish to the non-glass surface, and removing the primer/masking composition from said glass-like surface.Type: GrantFiled: October 31, 1995Date of Patent: February 2, 1999Assignee: Cal-West Equipment Company, Inc.Inventors: Ronald Swidler, Edward W. Woodhall
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Patent number: 5840453Abstract: A solvation-based method for charging toner particles in a liquid electrophotographic developer composition is provided. The method makes use of a material containing specific salvation sites which are incorporated into the resinous phase of the toner, and a charge director which is a metal salt, the metal, cationic component of which is effective to form a highly stable, "solvated" charged toner complex. Toner and developer compositions are also provided which make use of the novel solvation-based mode of charge direction.Type: GrantFiled: December 3, 1993Date of Patent: November 24, 1998Assignee: Colorep, Inc.Inventor: Ronald Swidler
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Patent number: 5719221Abstract: A composition is provided for protecting exterior surfaces of automobiles and other products against abrasive dust, acid rain, etc. The composition is applied as a mixture of water solubilized acrylic acid copolymer, pH-neutral acrylic copolymer, alkyl alcohol, surfactant, and water. The composition dries on the exterior surface to form a tough flexible coating that can be removed by an alkaline aqueous detergent solution.Type: GrantFiled: March 28, 1996Date of Patent: February 17, 1998Assignee: Cal-West Equipment CompanyInventor: Ronald Swidler
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Patent number: 5690539Abstract: This invention provides for provides for abrasive compositions and methods of use of these compositions for the preparation of surfaces for the application of various coatings such as paints, lacquers and varnishes. The abrasive compositions of this invention provide rapid cleaning and dulling of the underlying surface rendering it suitable for the application of paints or other finishes.Type: GrantFiled: August 7, 1995Date of Patent: November 25, 1997Assignee: Cal-West Equipment Company Inc.Inventors: Ronald Swidler, Edward W. Woodhall
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Patent number: 5603992Abstract: This invention provides methods and compositions for the temporary protection of activated plastic surfaces. The methods involve application of protective coating compositions to activated surfaces thereby protecting the surfaces from oxidation, soiling and mechanical damage. The coatings may be easily washed off leaving a clean activated surface suitable for overcoating.Type: GrantFiled: April 18, 1995Date of Patent: February 18, 1997Assignee: Cal West Equipment Company, Inc.Inventors: Edward W. Woodhall, Ronald Swidler
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Patent number: 5567756Abstract: A composition is provided for protecting exterior surfaces of automobiles and other products against abrasive dust, acid rain, etc. The composition is applied as a mixture of water solubilized acrylic acid copolymer, pH-neutral acrylic copolymer, alkyl alcohol, surfactant, and water. The composition dries on the exterior surface to form a tough flexible coating that can be removed by an alkaline aqueous detergent solution.Type: GrantFiled: December 7, 1994Date of Patent: October 22, 1996Assignee: Cal-West Equipment Company, Inc.Inventor: Ronald Swidler
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Patent number: 5538830Abstract: Toner and liquid developer compositions for use in color electrophotographic processes are described. The developer compositions display high particle-mediated conductivity and charge and thus give rise to a final print of exceptionally high quality. Methods of manufacturing the toner and developer compositions are also disclosed, as are novel charge control agents and processes for using the various compounds and compositions in a consecutive multicolor image development.Type: GrantFiled: April 28, 1995Date of Patent: July 23, 1996Assignee: Colorep, Inc.Inventor: Ronald Swidler
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Patent number: 5428095Abstract: A composition is provided for protecting exterior surfaces of automobiles and other products against abrasive dust, acid rain, etc. The composition is applied as a mixture of water solubilized acrylic acid copolymer, pH-neutral acrylic copolymer, alkyl alcohol, surfactant, and water. The composition dries on the exterior surface to form a tough flexible coating that can be removed by an alkaline aqueous detergent solution.Type: GrantFiled: January 27, 1993Date of Patent: June 27, 1995Assignee: Cal-West AutomotiveInventor: Ronald Swidler
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Patent number: 5411833Abstract: Toner and liquid developer compositions for use in color electrophotographic processes are described. The developer compositions display high particle-mediated conductivity and charge and thus give rise to a final print of exceptionally high quality. Methods of manufacturing the toner and developer compositions are also disclosed, as are novel charge control agents and processes for using the various compounds and compositions in consecutive multicolor image development.Type: GrantFiled: February 10, 1993Date of Patent: May 2, 1995Assignee: Lommtech International Management CorporationInventor: Ronald Swidler
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Patent number: 5281436Abstract: A composition is provided for protecting exterior surfaces of automobiles and other products against abrasive dust, acid rain, etc. during delivery for sale. The composition is applied as a mixture of water solubilized acrylic acid copolymer, ph-neutral acrylic copolymer, alkyl alcohol, surfactant, and water. The composition dries on the exterior surface to form a tough flexible coating that can be removed by an alkaline aqueous detergent solution.Type: GrantFiled: June 9, 1992Date of Patent: January 25, 1994Assignee: Cal-West Automotive ProductsInventor: Ronald Swidler
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Patent number: 5219980Abstract: The invention presents a biodegradable polyester polymer comprising ##STR1## wherein: n=number of repeating polymer units of the formula shown; p=0 or 1, 0 indicating the absence of the subscripted constituent; q=0 or 1, 0 indicating the absence of the subscripted constituent; when p=0, 1=1; when p=1, 1=0; R.sup.1 =a divalent organic substituent which can include oxygen, nitrogen or sulfur atoms as part of the polymer backbone; R.sup.2 =a divalent organic substituent which can include oxygen, nitrogen or sulfur atoms as part of the polymer backbone; R.sup.3 and R.sup.4 are each independently hydrogen or an organic substituent or together form a divalent ring which may be optionally substituted; and each R is independently H, alkyl, alkenyl or alkynyl, aryl, aralkyl, cycloalkyl, cycloalkenyl or cycloalkynyl, all optionally substituted with F, Cl, Br, I, CN or NO.sub.2.Type: GrantFiled: April 16, 1992Date of Patent: June 15, 1993Assignee: SRI InternationalInventor: Ronald Swidler
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Patent number: 5153090Abstract: Novel compounds useful as charge directors in color electrophotographic processes are described. Developer compositions containing the novel charge directors are provided as well. The developer compositions display high particle-mediated conductivity and charge and thus give rise to a final print of exceptionally high quality. Methods of manufacturing the toner and developer compositions are also disclosed, as are processes for using the various compounds and compositions in consecutive multicolor image development.Type: GrantFiled: June 28, 1990Date of Patent: October 6, 1992Assignee: CommTech International Management CorporationInventor: Ronald Swidler
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Patent number: 5069995Abstract: A novel liquid developer composition for use in electrophotographic processes, particularly consecutive color toning, is described. The composition contains, dispersed in a hydrocarbon medium, toner particles of colorant-containing resin and an antistatic agent substantially immiscible with the resin. The antistatic agent effectively eliminates the image staining frequently obtained in consecutive color toning processes. Methods for preparing and using the novel composition are also provided.Type: GrantFiled: May 23, 1989Date of Patent: December 3, 1991Assignee: CommTech International Management CorporationInventor: Ronald Swidler
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Patent number: 5045425Abstract: An electrophotographic liquid developer composition is provided containing a charge director which is a salt of a trivalent metal and an aromatic acid such as diisopropyl salicylic acid. For consecutive color toning processes, it is preferred that the concentration of charge director be maintained below some defined maximum value so that substantially all of the charge director is associated with toner. Methods for making and using the novel compositions are provided as well.Type: GrantFiled: August 25, 1989Date of Patent: September 3, 1991Assignee: CommTech International Management CorporationInventor: Ronald Swidler
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Patent number: 5032850Abstract: A method of vapor jet printing is described, along with several embodiments of apparatus for practicing such method. The vapor phase of a sublimable dye is mixed with a carrier gas. The resulting mixture is then jetted toward a recording medium. The carrier gas in indirectly heated by the sublimable dye to maintain the latter in its vaporous state during its travel to the recording medium. One embodiment of the apparatus includes a removable cartridge for the sublimable dye which enables color interchangeability and a limited downtime for dye recharging.Type: GrantFiled: December 18, 1989Date of Patent: July 16, 1991Assignee: Tokyo Electric Co., Ltd.Inventors: Gerry B. Andeen, Ronald Swidler, Hisashi Nishikawa, Yasuo Matsumoto, Ayumu Makino