Restoring Or Repairing Patents (Class 427/140)
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Patent number: 5683745Abstract: The invention relates to a process for producing a multicoat refinish, in which a metallic basecoat is sprayed on the prepared damage site and the adjacent regions of the old finish, so that it is opaque (hiding) in the region of the damage site and gradually runs out in the region of the old finish. Finally, a clearcoat is applied to the basecoat and, if desired, to the adjacent regions of the old finish.The process is characterized in that1. during the application of the basecoat composition to the adjacent regions of the old finish, the spraygun is inclined diagonally to the damage site, and2. during the application of the basecoat composition, a normal or only slightly reduced (3.0-4.5 bar) spraygun pressure is used.Type: GrantFiled: March 6, 1996Date of Patent: November 4, 1997Assignee: BASF Lacke + Farben, AGInventors: Hermann Liedtke, Werner Kraus, Bernd Mayer
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Patent number: 5676999Abstract: A tool and method for applying a texture slurry to a surface is provided. The tool comprises a flat, rectangular body for mating to a smooth surface, such as a repaired portion of drywall. The body has a multiplicity of spatially positioned openings disposed therethrough. Each of the openings has a predetermined configuration and position on the tool, for providing a pattern substantially matching the appearance of existing textured surface adjacent to the smooth surface. The invented method includes first affixing the tool to the smooth area of the surface, then applying a texture slurry to the tool. The spatially positioned openings receive the slurry to apply the slurry to the smooth surface for forming a newly textured area. The spatially positioned openings in the tool enable a user to substantially match the appearance of the newly textured area, with the appearance of the existing adjacent textured surface.Type: GrantFiled: June 5, 1995Date of Patent: October 14, 1997Inventor: Gilbert E. Silva
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Patent number: 5674558Abstract: A wipe-on clear protectant based on polyurethane is provided, which provides a finish that is durable and long lasting, is not injurious to the leather or artificial leather on which it is applied, in the instance of use on vinyl, impedes, rather than fosters, plasticizer migration, and is not slippery or tacky to the touch. In the preferred composition, polyurethane is dissolved in isopropyl alcohol, and ethylene glycol monobutyl ether is added, and the resulting liquid is wiped as a clear liquid onto the surface of the cleaned and dry leather or artificial leather produce which is to be protected. The finish dries clear, even, waterproof, smooth and without tackiness in less than thirty minutes.Type: GrantFiled: September 14, 1995Date of Patent: October 7, 1997Assignee: Repair-It Industries, Inc.Inventor: Lawrence L. Speer
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Patent number: 5672223Abstract: A method of recycling an image-bearing recording material, at least part of a surface portion having a paper layer which contains cellulose fibers and bears thereon images formed by a thermofusible or thermosoftening ink, includes the steps of causing the image-bearing surface portion of the recording material to hold a water-containing image removal acceleration liquid thereon, and causing the images to adhere to an image releasing member with the application of heat and/or pressure to the images, whereby peeling the images away from the surface portion, with the surface portion of the recording material having a contact angle (cos.theta.) of -0.6 to 0.8 when a liquid with a surface tension of 40 mN/m is placed dropwise on the surface portion of the recording material.Type: GrantFiled: February 16, 1996Date of Patent: September 30, 1997Assignee: Ricoh Company, Ltd.Inventors: Shigeaki Kimura, Hiroshi Kitazawa
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Patent number: 5667718Abstract: A traction aggregate suitable for antiskidding applications where reduced dust generation is desired. An expanded substrate is saturated with a liquid absorbed dust suppressant and sealed with a liquid water repellant sealant/dust suppressant. The aggregate traction material may be dispersed over thoroughfares to provide adequate traction for vehicles and, once the snow/ice melts and the roadway dries, leaves behind a non-dusting material that will remain a dust suppressant material during and after subsequent vehicular degradation.Type: GrantFiled: July 2, 1996Date of Patent: September 16, 1997Assignee: Western Aggregates, Inc.Inventors: Martin Allen Jones, Edward Charles Rosar, Maurice Glenn Pattengill
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Patent number: 5658379Abstract: The present invention provides a filler for wood products, especially those intended for indoor use, This filler can include a putty including a mixture of calcium sulphate and calcium oxide (or a compound forming calcium oxide when heated); at least one mineral pigment; and an agent for retarding the setting of the putty. The invention also contemplates a method for filling wood products. In accordance with this method, one fills an orifice within the wood product with a filler which includes a putty including a mixture of calcium sulphate and calcium oxide (or a compound forming calcium oxide when heated); and at least one mineral pigment. The filler is then smoothed and a surface of the filled wood product is finished.Type: GrantFiled: June 7, 1995Date of Patent: August 19, 1997Inventor: Giovanni Battilana
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Patent number: 5654032Abstract: The invention resides in a photosensitive composition for screen printing. Preferably, the composition of the invention comprises a polymer comprising a vinylpyridine monomer or polymer having a pyridinium salt character and a photoreactable constituent. The resulting stencil, once dried, exposed, cured, and subjected to alkaline treatment obtains enhanced solvent/water resistance but can be reclaimed using an acidic wash. In use, the stencil provides a screen/stencil assembly or blockout utility of high structural integrity through repeated use and screen printing images of high resolution and quality.Type: GrantFiled: May 26, 1995Date of Patent: August 5, 1997Assignee: The Chromaline CorporationInventors: Alexander S. Gybin, Kyle K. Johnson, Toshifumi Komatsu, Lawrence C. Vaniseghem
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Patent number: 5650001Abstract: A composition for treating a compact disc is disclosed and contains a urethane, a silicone, kerosene, at least one lower alcohol, and Stoddard solvent. A method for treating compact discs, such as those that are damaged, is also disclosed. The method includes the step of applying the composition of the present invention to a surface of the disc.Type: GrantFiled: December 1, 1995Date of Patent: July 22, 1997Inventor: Bradley Howell
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Refractory ceramic mass for lining the bottoms of electric arc furnaces and process for their repair
Patent number: 5645772Abstract: A process for repairing bottom linings of D.C. arc furnaces. A refractory ceramic mass is used for lining the bottoms of D.C. arc furnaces in the area of metallic electrodes placed therein, wherein the refractory ceramic mass comprises one or more refractory oxides, in a grain fraction of less than 8 mm and 10 to 40 wt. % of finely dispersed metallic additives in a grain fraction of less than 0.1 mm, for lining bottoms of D.C. furnaces in the area of metallic electrodes, placed within said bottoms to insure an electrically conductive contact between the refractory ceramic mass and the metallic electrodes.Type: GrantFiled: December 23, 1994Date of Patent: July 8, 1997Assignee: Veitsch-Radex Aktiengesellschaft fur Feuerfeste ErzeugnisseInventors: Franz-Adolf Petio, Wilfried Eckstein -
Patent number: 5645886Abstract: A system for sealing an exposed area of a surface coated with a radiofrequency signal absorbing coating includes a heat-responsive compound that transforms from a solid state to viscous melted state at temperatures above a predetermined temperature and that returns to a solid state after cooling to temperatures below the predetermined temperature. The heat-responsive compound has a radiofrequency absorbing material for absorbing radiofrequency signals at approximately equal frequency to those that the radiofrequency signal absorbing coating absorbs. An applicator applies the heat-responsive compound in the viscous melted state to cover the exposed areas. An absorptive tape conceals any gap or fastener associated with the exposed area and absorbs radiofrequency signals having approximately equal frequencies to those of the radiofrequency signal absorptive coatings.Type: GrantFiled: September 1, 1995Date of Patent: July 8, 1997Assignee: Lockheed Fort Worth CompanyInventors: John T. Schueler, II, Stanley L. Ramirez
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Patent number: 5633037Abstract: The subject matter of the present invention is a multicoat metallic refinishing process in which a coating material is first applied to the prepared area of damage and to the adjacent regions of original finish. A metallic basecoat is applied to this first coating in such a way that the basecoat hides the area of damage and tapers off on the coating. A clearcoat is then applied to the basecoat and, if appropriate, also to the adjacent regions of the original finish.In the process an aqueous metallic basecoat and an aqueous coating material containinga) 5 to 50% by weight, based on the total weight of the coating material, of at least one water-thinnable or water-dispersible film-forming material,b) 0 to 20% by weight, based on the total weight of the coating material, of at least one organic solventc) conventional auxiliaries and additives, if appropriate,are applied to the prepared area of damage, the dry film thickness of this aqueous coating material being between 2 and 50 .mu.Type: GrantFiled: April 22, 1994Date of Patent: May 27, 1997Assignee: BASF Lacke + Farben, AGInventor: Bernd Mayer
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Patent number: 5624714Abstract: A coating for waterproofing and sealing a rigid structural unit using a styrene polymeric film cast from an organic solvent is disclosed. The coating is easily maintained as damaged areas and imperfections can be repaired by simply applying additional liquid composition to the damaged area, and the liquid composition remelts the existing film allowing the newly formed film to be continuous. In addition, the composition can be applied to structural units in sub-freezing temperatures or to wet surfaces. Methods relating to the use of the liquid coating composition are also disclosed.Type: GrantFiled: April 16, 1996Date of Patent: April 29, 1997Assignee: Poly-Wall International, Inc.Inventor: John H. Gaveske
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Patent number: 5615387Abstract: A method of reworking a printed circuit board having a surface including areas needing to be reworked including the steps of covering the surface with a dielectric leaving uncovered at least the areas of the surface to be reworked, and selectively providing corrective circuitry on the dielectric interconnected to the uncovered areas of the surface needing to be reworked. In addition, a printed circuit board having a surface including reworked areas including a dielectric covering the surface leaving uncovered at least the reworked areas, and corrective circuitry on the dielectric interconnected to the uncovered reworked areas.Type: GrantFiled: January 22, 1996Date of Patent: March 25, 1997Assignee: International Business Machines CorporationInventors: Charles H. Crockett, Jr., Steven A. Duncan, Stephen A. Dunn, David W. Malone, Michael G. McMaster
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Patent number: 5609535Abstract: A method of restoring a used golf ball in which a small portion of the old cover is removed and a new layer of material added, which new layer includes dimples. The new layer may be transparent with an indicia on its outer surface or on the outer surface of the remaining old cover.Type: GrantFiled: December 19, 1994Date of Patent: March 11, 1997Assignee: Acushnet CompanyInventor: William E. Morgan
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Patent number: 5607534Abstract: A method of recycling a support material for supporting images thereon, at least part of the support material including a paper layer which contains cellulose fibers as the main component and bears thereon hydrophobic images having a coloring agent and a heat softening or thermofusible material, includes the steps of causing the support material to hold a water-containing image peeling liquid thereon; bringing an image peeling member into contact with the hydrophobic images while the image peeling liquid is held on the support material; and peeling the hydrophobic images off the paper layer, with the image peeling liquid being held in an amount of 1.0 g or more per A4-size paper layer, or with the rate of the penetration of the image peeling liquid into the paper layer of the support material being set at 12 ml/m.sup.2 or more for a contact time of 0.Type: GrantFiled: August 22, 1994Date of Patent: March 4, 1997Assignee: Ricoh Company, Ltd.Inventors: Toshiyuki Kawanishi, Masato Igarashi, Eiichi Kawamura, Tadashi Saitoh, Kiyoshi Tanikawa, Kakuji Murakami
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Patent number: 5605590Abstract: The method includes sealing the stator bar end connections from within the stator bar end fitting. Particularly, a low viscosity epoxy is initially applied from within the chamber of the end fitting by use of a boroscope and a syringe-type applicator, the low viscosity epoxy being applied to all joints between the adjacent strands of the stator bar and between the fitting and the outermost strands of the stator bar. A high viscosity epoxy is then applied over the low viscosity epoxy using the boroscope and applicator to provide a thick barrier seal between the liquid coolant in the chamber and the brazing material. The epoxy is then cured. The process ensures that the brazing material is isolated from the liquid coolant by the barrier seal whereby potential leaks are prevented and partially developed leaks or leaks extant are arrested because sealant material is disposed at the liquid coolant/braze interface.Type: GrantFiled: May 22, 1995Date of Patent: February 25, 1997Assignee: General Electric Co.Inventors: Michael P. Manning, Robert T. Lembke, Larry S. Rosenzweig, Mark Markovitz
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Patent number: 5593772Abstract: A structure constructed to reduce the impact of visual imperfections having at least one visible surface which is covered by a first basecoat of an exterior water-based flat paint. The first basecoat is then covered by a layer of multicolor paint. Upon the incidence of the surface being visually marred, for example by graffiti, a second basecoat, similar in hue to the first basecoat, is applied over the portion of the surface that had been marred. A second layer of multicolor paint, similar in hue to the first layer of multicolor paint, is then applied over the second basecoat. The ability of the first basecoat to adhere to the structure may be enhanced by the addition of concrete glue to the flat paint. In addition the multicolor paint may be made reflective by the addition of glass beads or particles to both first and second layers of multicolor paint prior to its application.Type: GrantFiled: October 1, 1993Date of Patent: January 14, 1997Inventor: Daniel Zamot
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Patent number: 5593937Abstract: An image-bearing member for supporting thereon images formed by a thermofusible or heat-softening ink containing a dye coloring component, at least part of the image-bearing member having a paper layer which contains cellulose fibers and a discoloring agent capable of discoloring the dye coloring component of the thermofusible or heat-softening ink. In addition, a method for recycling the above-mentioned image-bearing member is also disclosed.Type: GrantFiled: July 22, 1994Date of Patent: January 14, 1997Assignee: Ricoh Company, Ltd.Inventors: Tadashi Saito, Kiyoshi Tanikawa, Eiichi Kawamura, Toshiyuki Kawanishi
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Patent number: 5582861Abstract: A method of repairing damage to an oxidation-resistant layer on a carbon-carbon composite wherein a composition consisting essentially of a polymeric thermosetting polysilazane and a ceramic powder is applied to the damaged area, cured, and fired.Type: GrantFiled: March 11, 1994Date of Patent: December 10, 1996Assignee: Southwest Research InstituteInventors: Stuart T. Schwab, Renee C. Graef
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Patent number: 5580603Abstract: A pavement rejuvenating composition in which particular coal tar derivatives and other optional ingredients are admixed with one or more blackening agents. The blackening agent may be one or more of the following: soft coal tar pitch, aromatic cracked petroleum residue, silicone, aliphatic amine, carbon black or 0.01-2.0% by weight pavement dressing conditioner to give the desired blackening and pavement preservation effect.Type: GrantFiled: April 27, 1995Date of Patent: December 3, 1996Assignee: K.A.E. Paving Consultants, Inc.Inventor: Edward W. McGovern
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Patent number: 5575963Abstract: A method of selective clogging of failed hollow fibers of a membrane module, including a pack or bundle of fibers in a shell-side and bore-side arrangement which includes failed fibers and non-failed fibers, comprises the steps of: clogging bores of all of the fiber at one end of the pack or bundle of the fibers; substantially evacuating the membrane module both at the shell-side and at the bore-side; filling the bore-side and the shell-side with a non-permeant gas; subsequently-holding the membrane module vertically, disconnecting the bore-side of the membrane module from a supply of the non-permeant gas and dipping another end of the membrane module opposite to the clogged end into a reservoir containing a liquid sealant; applying a reduced pressure to the shell-side for a period of time sufficient to permit suction of sealant into the bores of the failed fibers through a failure of which vacuum is applied to the bore-side; allowing the sealant to solidify at least partially to clog the bores of both the faType: GrantFiled: May 24, 1994Date of Patent: November 19, 1996Assignees: Rotem Industries, Ltd., AGA AktiebolagInventors: Abraham Soffer, Shlomo Saguee, Dan Golub, Haim Cohen, Moshe Azariah
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Patent number: 5569418Abstract: Like-new golf balls are made from used golf balls by first reducing the diameter of the used ball, to provide an intermediate ball, and then molding a new dimpled cover on the ball. The diameter of the used ball is uniformly reduced by compression molding or by grinding.Type: GrantFiled: February 15, 1995Date of Patent: October 29, 1996Inventor: Robert F. Russo, Sr.
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Patent number: 5565535Abstract: A method for improving the substrate adhesion properties of polymer concrete composition including a substantially non-aqueous slurry of (i) an aggregate component, (ii) a monomer binder component in an amount effective to bind the aggregate component, upon curing, into a polymer concrete, and (iii) a polymerization catalyst. The method involves adding a crosslinking-effective amount of a metal salt of an .alpha., .beta.-ethylenically unsaturated carboxylic acid to the polymer concrete.Type: GrantFiled: June 7, 1995Date of Patent: October 15, 1996Assignee: Sartomer Company, Inc.Inventors: C. Richard Costin, Michael A. Bailey, Walter R. Nagel
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Patent number: 5549925Abstract: A process for repairing leaking glass-to-metal seals of a hybrid microcircuit header. The process comprises the following steps. A leaking hybrid microcircuit header is delidded (has its lid removed). The leaking hybrid microcircuit header, generally with its leads pointing vertically, is disposed on a vacuum source. A vacuum is formed on the hybrid microcircuit header using the vacuum source. A stream of helium is flowed over the seals to verify the presence of leaks in the seals of the hybrid microcircuit header. A small amount of high vacuum sealant is applied to each of the leaking glass-to-metal seals while the hybrid microcircuit header is exposed to the vacuum. The vacuum draws the sealant through the cracked or defective glass-to-metal seals. The high vacuum sealant generally comprises a silicone resin having a low vapor pressure. A stream of helium is caused to flow over the resealed leads following application of the high vacuum sealant to confirm that the hybrid microcircuit header is sealed.Type: GrantFiled: June 7, 1995Date of Patent: August 27, 1996Assignee: Hughes Missile Systems CompanyInventor: Michael T. Madjerec
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Patent number: 5547717Abstract: Aircraft brakes are refurbished by a rapid chemical vapor deposition method utilizing a liquid carbon-precursor as a carbon source for carbon densification. Inductive and resistive heating means are utilized to carry out the method.Type: GrantFiled: February 13, 1995Date of Patent: August 20, 1996Assignee: Avco CorporationInventors: David T. Scaringella, Donald E. Connors, Jr., Garrett S. Thurston
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Patent number: 5538764Abstract: A method of treating a concrete or other non-metallic surface contaminated with embedded radionuclides to reduce the total level of radioactivity in a concrete or other hydraulically bonded material body is described. The method comprises the steps of producing relative mutual movement between the surface to be removed and a laser heat source such that a layer adjacent the surface is caused to be detached from said concrete body. The surface may be detached as a vapour, in flakes or as a sheet.Type: GrantFiled: November 3, 1994Date of Patent: July 23, 1996Assignee: British Nuclear Fuels plcInventors: Lin Li, Peter J. Modern, William M. Steen
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Patent number: 5538755Abstract: A method for rehabilitating manholes and other sewer collection system structures begins by repairing existing leaks using hydraulic grout and cleaning the interior surface of the manhole by sandblasting or the like. A waterproofing stage is applied in multiple coats using a crystallization agent that integrates a crystalline structure with the underlying substrate. A chemical attack resistant calcium aluminate cement stage is then applied, and the waterproofing capabilities of the underlying coating are enhanced by the integration of the crystalline structure with the calcium aluminate cement stage. An epoxy coating is applied on the calcium aluminate cement to provide further chemical resistance and waterproofing while simultaneously providing a continuous, bridging barrier during self-repair of cracks in the underlying calcium aluminate by expanding crystallization by the crystallization agent.Type: GrantFiled: October 12, 1993Date of Patent: July 23, 1996Inventor: Tim Martin
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Patent number: 5536605Abstract: A repaired laser ablation mask is disclosed capable of withstanding laser fluences in the range from about 200 mJ/cm.sup.2 to at least 500 mJ/cm.sup.2. The repaired mask comprises a single or multiple layers of apertured metal, such as, aluminum, on a quartz substrate. The laser mask repair technique and structure are also disclosed. The thickness of the metal layer, such as, aluminum layer, is in the range from about 2 microns to about 6 microns. A laser projection etching technique is also disclosed for using the repaired ablation mask.Type: GrantFiled: May 22, 1995Date of Patent: July 16, 1996Assignee: International Business Machines CorporationInventors: Rajesh S. Patel, Laertis Economikos
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Patent number: 5520955Abstract: Aqueous spot fillers, containing at least one water dilutable, olefinically unsaturated binder, conventional pigments, fillers and adjuvants, corresponding to a solids content of50-90 wt %10-40 wt % of water and0-10 wt % of one or more organic solvents,the water dilutable, olefinically unsaturated binders containing anionic groups or groups convertible to anionic groups, corresponding to an acid number of 25-175 and being the reaction products ofA) 40-80 wt % of one or more polydiene oils,B) 5-25 wt % of one or more polymerisable olefinically unsaturated monomers containing anionic groups or groups convertible to anionic groups,C) 0-10 wt % of one or more bis-(2-oxazolines) andD) 0-40 wt % of one or more ethylenically unsaturated monomers.the percentages of A), B), C) and D) adding up to 100 wt %.The spot fillers can be used for the preparation of multi-layer coatings, especially on motor vehicles.Type: GrantFiled: April 21, 1994Date of Patent: May 28, 1996Assignee: Herberts Gesellschaft mit beschrankter HaftungInventor: Otfried Nawotka
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Patent number: 5512316Abstract: The disclosed invention provides a method of forming refractory linings for maintaining refractory linings against attack by corrosive materials such as those present in steel manufacture. The method entails spraying an aqueous mixture of a refractory composition that includes at least one refractory material onto the working surface of a refractory lining. Spraying is performed to provide one or more layers of the refractory composition on the refractory lining after each exposure of the lining to corrosive materials such as those incurred in steel manufacture.Type: GrantFiled: April 11, 1994Date of Patent: April 30, 1996Assignee: Minerals Technologies, Inc.Inventors: Julie A. Dody, Charles R. Rumpeltin, Jr.
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Patent number: 5506003Abstract: A method is disclosed for rehabilitating an exposed cut surface of a rock formation after rock cutting has occurred so that the fresh cut surface becomes weathered and natural within several weeks to facilitate restoration back to its original shade as a part of the natural scenery. Weathering occurs by applying a solution containing FeCl.sub.2 or MnSO.sub.4 to the surface of the rocks to be colored. These rocks are limestone, dolostone, phosphorite and concrete. A method for preparing a weathering solution is also disclosed.Type: GrantFiled: September 14, 1994Date of Patent: April 9, 1996Assignee: GEOPROSPECT 1986 JERUSALEM LTD.Inventor: Moshe Braun
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Patent number: 5505987Abstract: Cement compositions and processes for improving the bond between new hydrating cement-based materials and the surface of "old" cement-based substrates are disclosed. A mechanically and chemically integral bond is created between the surfaces of the cement-based materials by moistening the old cement-based surface, exposing the moist surface to carbon or carbonate sources (such as with carbon dioxide) and then applying a new hydrating cement-based material thereon. The treatment of the surface of the cement-based substrate as described above creates an aqueous phase chemistry thereon which is compatible to the aqueous phase chemistry of the hydrating cement-based materials applied thereafter. The compatibility of the aqueous phase chemistries results in a mechanically and chemically integral bond formed between the surface of the old cement-based surface and the hydrating cement-based materials.Type: GrantFiled: January 20, 1995Date of Patent: April 9, 1996Inventors: Hamlin M. Jennings, Anthony J. Kelzenberg, Simon K. Hodson
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Patent number: 5494741Abstract: A slump-resistant, curable polymer concrete composition, suitable for coating onto a concrete surface or an asphalt surface to resurface same, comprising (a) 5 to 95 weight percent of an aggregate at least 20 percent of which has a minimum particle dimension of 1/16 inch or greater, (b) 5 to 95 weight percent of a curable polymer composition containing an ethylenically unsaturated polymer containing carbon, hydrogen and oxygen in the molecule and carbon-bonded carboxyl groups or carbon-bonded hydroxyl groups or both in the molecule, (c) an effective amount of a curing catalyst effective to initiate the curing of the polymer, and (d) at least one reactive, time-delay thickener comprising (1) a Group IIA metal oxide or hydroxide in the amount of 0.1 to 20 equivalents per carbon-bonded carboxyl group of the polymer, the Group IIA metal oxide or hydroxide being reactive with the carboxyl groups of the polymer to thicken said polymer concrete composition and/or (2) a polyisocyanate in the amount of 0.Type: GrantFiled: February 8, 1995Date of Patent: February 27, 1996Assignee: Frank FeketeInventors: Frank Fekete, David J. Thrash
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Patent number: 5487914Abstract: This invention is a method for providing ultraviolet light absorbers into a cured polymeric material such as paint which comprises the steps of providing a coating of a composition comprising ultraviolet light absorber (UVA) on the polymeric material and heating the UVA containing coating to an elevated temperature for a time sufficient to cause the UVA to diffuse into the cured polymeric material.Type: GrantFiled: October 3, 1994Date of Patent: January 30, 1996Assignee: Ford Motor CompanyInventors: John L. Gerlock, Mark P. Everson
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Patent number: 5482781Abstract: Process for restrengthening damaged paper, in which the aged, acid-damaged friable paper is treated with a solution containing isocyanate or with isocyanate vapour. Isocyanates having two or more isocyanate groups are preferably used.Type: GrantFiled: November 10, 1994Date of Patent: January 9, 1996Assignee: Battelle Ingenieurtechnik GmbHInventors: Jurgen Wittekind, Karl-Heinz Scherer
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Patent number: 5482737Abstract: A novel coating for waterproofing and sealing a rigid structural unit using a styrene polymeric film cast from an organic solvent is disclosed. The coating is easily maintained as damaged areas and imperfections can be repaired by simply applying additional liquid composition to the damaged area, and the liquid composition remelts the existing film allowing the newly formed film to be continuous. In addition, the composition can be applied to structural units in sub-freezing temperatures or to wet surfaces. Novel methods relating to the use of the liquid coating composition are also disclosed.Type: GrantFiled: June 10, 1994Date of Patent: January 9, 1996Assignee: Poly Wall InternationalInventor: John H. Gaveske
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Patent number: 5480680Abstract: A method is provided for effecting a color change in wood or a wood-grained article, and the article prepared thereby. The method includes the steps of applying to a nitrocellulose-finished wood article a composition that includes a water-based dye or pigment and a water-based varnish or lacquer over the nitrocellulose coating, without physically or chemically stripping the nitrocellulose layer. In an alternative embodiment, a wood-grained article is refinished by application of the water-based dye or pigment and a water-based varnish or Lacquer to its surface.Type: GrantFiled: September 9, 1993Date of Patent: January 2, 1996Assignee: Furniture Medic, Inc.Inventor: Todd T. Vieyra
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Patent number: 5476681Abstract: The invention is a rigid polyurethane foam to which a base stock lubricating oil made of at least 55 weight percent paraffinic carbons and less than 10 weight percent aromatic carbons has been added as a hydrophobic agent protecting the polyurethane foam from reacting with environmental moisture. The foam is useful for deposit in railroad spike holes or any structural member having a cavity and where moisture within or on the cavity would otherwise react with the isocyanate to produce an uncontrollable foaming mass.Type: GrantFiled: January 3, 1995Date of Patent: December 19, 1995Assignee: BASF CorporationInventors: Agus Sampara, Rob Hutchings, Tom Harris, Karl Dondoroff, Kerry Bowman
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Patent number: 5474804Abstract: A method and apparatus for repairing a textured ceiling or overhead surface. The method for repairing a textured ceiling or overhead surface consists of the following steps: providing an apparatus; applying an adhesive coating to the textured ceiling or overhead surface; introducing the loose, granular material into the hopper; utilizing said means for propelling the loose, granular material out of the open wide end of the hopper and onto the textured ceiling or overhead surface and finally applying a sealant onto the loose, granular material which has adhered to the textured ceiling or overhead surface. The apparatus for repairing a textured ceiling or overhead surface includes a hopper for holding a loose, granular material, the hopper having an open wide end and an open narrow end, the open narrow end having a smaller cross sectional area than the open wide end.Type: GrantFiled: September 30, 1994Date of Patent: December 12, 1995Inventor: Thomas A. Kubic
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Patent number: 5470609Abstract: A process for repairing surface defects in plastic articles, especially plastic articles formed from fiber reinforced thermosetting resins, includes the steps of applying a powder coating composition to a defective area on the surface of a plastic article, curing the applied powder coating composition through the application of heat, and removing excess cured powder coating composition from the area of the defect to conform the area of the defect to the proper contours of the plastic article. The process can be utilized for repairing surface defects such as porosity, scratches, gouges and sand-through areas of cured thermoset substrates such as automotive body panels formed from sheet or bulk molding compounds.Type: GrantFiled: December 7, 1992Date of Patent: November 28, 1995Assignee: GenCorp Inc.Inventors: Burr L. Leach, David Hawkins
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Patent number: 5470605Abstract: A composition suitable for use in priming a first plastic surface for adhesion of a second plastic material thereto is presented, the composition comprising an epoxy resin and a solvent, the composition derived from the combination of:a. a first composition comprising a first organic material having a plurality of epoxy-functional groups, the first organic material dispersed in a first organic solvent; andb. a second composition comprising a second organic material having at least one functional group reactive with epoxy-functional groups of the first organic material, the second organic material dispersed in a second organic solvent,wherein the first and second organic solvents comprise the solvent and the epoxy resin comprises the reaction product of the first and second organic materials, the solvent adapted to wet and penetrate but not be substantially retained by the first plastic surface where applied thereto.Type: GrantFiled: May 9, 1994Date of Patent: November 28, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventor: Richard H. Lundeen
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Patent number: 5447752Abstract: A surface coating composition comprising generally cement, sand, a polymer binder, and water, and a method for applying the composition to a surface. The composition is used to apply an ornamental surface coating onto a pre-existing cementitious surface, or a surface to which a cementitious base layer has been applied. The surface is cleaned with a muriatic acid solution. A flexible plastic template is laid on the surface to define the desired pattern and a thin layer of the composition is applied. The template is removed after the composition is applied. After the composition starts to cure, the surface is wiped with a damp sponge to round off corners and open up surface pores. The surface is sealed after curing. Texturizing rollers may be used to provide a more realistic finish. The coating is tough and durable, and can withstand up to approximately 6,000 psi (about 400 kg/cm.sup.2) pressure.Type: GrantFiled: June 9, 1994Date of Patent: September 5, 1995Inventor: Clyde T. Cobb
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Patent number: 5441760Abstract: A chipseal overlay coating having in situ deicing properties. An absorbent material such as lightweight aggregate, is mixed with oil, asphalt and/or concrete to form a thoroughfare chipseal overlay. Deicing materials are applied to the overlay or to the absorbent material prior to the mixing process. Due to the highly absorbent nature of the chipseal overlay, the deicing material is absorbed. During icing and snow conditions, the impregnated material reacts with the ice and snow to cause them to melt.Type: GrantFiled: March 25, 1994Date of Patent: August 15, 1995Assignee: Western Aggregates, Inc.Inventors: Maurice G. Pattengill, Martin A. Jones
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Patent number: 5427819Abstract: A repair and rehabilitation treatment process for reinforced concrete structures involves the removal of concrete from above rebar or other metal reinforcement material in the concrete structure. After removal of concrete, the metal reinforcement materials are saturated with corrosion inhibiting agents. Saturation is best achieved by multiple spray applications of the corrosion inhibitor. The cavity in the concrete structure with the treated rebar or other metal reinforcement materials is then backfilled and/or overlaid with repair concrete. Preferably, the repair concrete includes corrosion inhibitors which will diffuse to the rebar over time or is a low permeability concrete that reduces the rate of diffusion of chloride corrosion causing agents to the rebar. The repair and rehabilitation process significantly increases the concrete structure's service life.Type: GrantFiled: May 13, 1994Date of Patent: June 27, 1995Assignee: Virginia Tech Intellectual Properties, Inc.Inventors: Richard E. Weyers, Brian D. Prowell
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Patent number: 5419922Abstract: Refractory material is applied to the interior surface of a vessel by advancing a boom carriage on a frame positioned externally of the vessel through an opening in the vessel. The boom carriage supports a collapsed telescoping mast and a nozzle boom. The carriage supporting the mast and nozzle boom is advanced through the opening to an elevated position within the vessel. At the end of travel of the boom carriage, the telescoping mast is pivoted through approximately 90.degree. to a vertical position and the nozzle boom is pivoted to a position perpendicular to the mast. The mast is progressively extended as the nozzle boom is rotated and refractory material is sprayed from a nozzle assembly on the end of the boom onto the vessel interior surface. The nozzle boom is transversely and pivotally movable on the mast to adjust the position of the nozzle assembly to follow the irregular contour on the interior surface as the mast is telescopically advanced or retracted.Type: GrantFiled: March 15, 1994Date of Patent: May 30, 1995Assignee: BMI, Inc.Inventor: Robert A. Bajek
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Patent number: 5418005Abstract: A method for reclaiming a pigment-attached red-emitting phosphor recovered from a manufacturing process for a color picture tube, which comprises treating the phosphor with an aqueous solution containing NaOH, NaClO and H.sub.2 O.sub.2 and then treating it with a weak acid, whereby the pigment can be prevented from exfoliation by suppressing the dissolution of the binder which attaches the pigment to the phosphor, and blue- and green-emitting phosphors contained as contaminants in the recovered red-emitting phosphor can be completely removed. The method provides a reclaimed red-emitted phosphor with high luminance and a good coating property.Type: GrantFiled: September 24, 1993Date of Patent: May 23, 1995Assignee: Kasei Optonix, Ltd.Inventors: Hideo Endo, Shinsuke Aoki, Chihiro Yoshida
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Patent number: 5413808Abstract: A method for preserving porous structures, including masonry structures having embedded structural or reinforcing steel rods, applies liquid preservative material to an exposed surface of the structure and injects the material into the structure using the blasting force of a compressed air stream at high velocity. The apparatus for practicing the method includes separate manifolds having multiple outlet nozzles provided for the liquid material and for the air streams, both manifolds covered by a shroud. The manifolds and their nozzles are arranged so that, as the liquid is applied to the surface of the structure, the high velocity air forces or injects it into the interior of the structure, so as to coat the interstices of the inner porous structure including any reinforcing steel therein, the high velocity air streams acting as a fluid hammer. The preservation of the structures occurs without the need of disturbing, breaking open or repairing brick, concrete or masonry structures.Type: GrantFiled: May 3, 1991Date of Patent: May 9, 1995Assignee: Jay S. WynerInventor: Jay S. Wyner
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Patent number: 5413809Abstract: A method for repairing a basecoat/topcoat finish or coating comprised of a silane topcoat. A silane curing catalyst is added to the repair basecoat composition to improve recoat adhesion.Type: GrantFiled: July 1, 1993Date of Patent: May 9, 1995Assignee: E. I. du Pont de Nemours and CompanyInventor: Isidor Hazan
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Patent number: 5407710Abstract: The present invention relates to a method for the interconnection/repair of circuits on a transparent substrate at ambient temperature using laser induced chemical vapor deposition.Type: GrantFiled: August 4, 1993Date of Patent: April 18, 1995Assignee: International Business Machines CorporationInventors: Thomas H. Baum, Paul B. Comita, Carl E. Larson, George W. Tyndall, III
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Patent number: 5401152Abstract: A kit and method for the repair of broken plastic light bulb housings for automobiles is provided to repair through the plastic. The kit and method enables a repair to include a bead overriding the surface of the repair. The bead extends beyond the periphery of the break obscures the outline of the break and strengthens the repair. A simple mold is provided or formed from a selected gasket and cover provided.Type: GrantFiled: December 17, 1993Date of Patent: March 28, 1995Inventors: Gerald Jacino, Anthony Jacino