Inside Of Hollow Work Patents (Class 118/317)
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Patent number: 5404965Abstract: An apparatus for lubricating pipe joints is described which includes a generally cylindrical plug adapted to fit into a female box connection of a length of pipe. The plug has a first end, a second end, a circumferential exterior surface and a blind interior bore which extends through the first end and terminates short of the second end. The exterior surface has a network of channels. A plurality of lubrication passages extend through the plug from the blind interior bore to the network of channels on the exterior surface. When lubrication compounds are pumped under pressure into the blind interior bore, the lubrication compounds pass through the lubrication passages into the network of channels on the exterior surface of the plug thereby thoroughly coating the female box connection with lubricant. An end cap covers the first end of the plug. The end cap has a flange that extends beyond the circumferential exterior surface.Type: GrantFiled: June 10, 1994Date of Patent: April 11, 1995Inventor: Gary J. McCormick
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Patent number: 5389148Abstract: A spray method and apparatus for uniformly coating a surface with a high degree of efficiency includes filling the pores of a porous sheet with a liquid and then directing compressed fluid from a nozzle into the sheet from one side to spray the liquid onto a surface spaced from an opposite side. Because the total volume of the pores is known, the volume of the sprayed liquid is also known. Moving the nozzle relative to the sheet and the substrate enables the entire surface to be uniformly coated. The size and distribution of the pores on the sheet define the distribution of the liquid sprayed onto the substrate. The coating may be a thick or a thin film of uniform thickness, or may even comprise a recognizable pattern.Type: GrantFiled: January 28, 1993Date of Patent: February 14, 1995Assignee: Nordson CorporationInventor: Masafumi Matsunaga
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Patent number: 5368459Abstract: The present invention pertains to a device for preparing and feeding a monolithic ceramic mass into a metallurgical melting vessel, including a mixer 30 and a feeding device 32, characterized in that the mixer 30 and the feeding device 32 are designed as a compact unit 28 for arrangement above the metallurgical vessel, wherein the mixer 30 and/or the feeding device 32 are arranged relative to one another and movably such that the mass prepared in the mixer 30 can be directly introduced at any desired point of the metallurgical vessel via the feeding device 32.Type: GrantFiled: March 1, 1993Date of Patent: November 29, 1994Assignee: Veitscher Magnesitwerke-Actien-GesellschaftInventors: Alexander Retschnig, Manfred Slamenik
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Patent number: 5358568Abstract: A spraying apparatus is disclosed, in which a manipulator consisting of a plurality of articulations (linear movement articulations and rotational movement articulations) is mounted on a carriage and a spraying nozzle member is mounted on the last stage rotational movement articulation, which are so constructed that material to be sprayed is supplied to this spraying nozzle member through a hose, and a piping path is formed in the interior of at least rotational movement articulations, for which it is feared that the hose becomes tangled therewith or twisted. A sensor is mounted on either the nozzle or the manipulator to detect the distance between the nozzle and the surface being sprayed. A controller responds to the signals produced by the sensor to maintain the nozzle at a substantially constant distance from the surface during spraying.Type: GrantFiled: February 17, 1993Date of Patent: October 25, 1994Assignees: Shimizu Corporation, Nichias CorporationInventors: Tadashi Okano, Jun Nishimura, Hajime Nomura, Takehiro Yoshida, Masahiko Jotani
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Patent number: 5296035Abstract: An apparatus for applying coating material to inner surfaces of cans includes a coating material spray gun and a cleaning material spray gun which are mounted in a side-by-side relationship on a manifold block. The coating material spray gun is connected in fluid communication with a coating material supply conduit through the manifold block. The cleaning material spray gun is connected in fluid communication with a cleaning material supply conduit through the manifold block. The cleaning material spray gun is operable to direct a flow of cleaning material toward a nozzle on the coating material spray gun to clean the nozzle. Three point mounting systems are utilized to accurately mount the spray guns on the manifold block. A heater is provided to maintain body of coating material in the coating material spray gun at a desired temperature.Type: GrantFiled: March 27, 1992Date of Patent: March 22, 1994Assignee: Nordson CorporationInventors: Donald A. Chicatelli, Wataru Kakuta
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Patent number: 5296078Abstract: On the welding arm of a welding machine is mounted a coaxial application pipe with removable transport means and an application nozzle. Into this application pipe is fed a block-shaped hot-melt mass, in the direction opposite the advance direction of the sheet metal tube, guided in direction (V) of the application tube, melted in the area of a narrowing heater, passed through a supply tube to the application nozzle and applied or sprayed as a hot-melt strip to the inside of the longitudinal weld seam of sheet metal tubes.The application of a hot-melt strip is suitable in particular for the protection of the longitudinal seam of a tin-plated can shell.Type: GrantFiled: December 14, 1992Date of Patent: March 22, 1994Inventor: Ernst M. Frey
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Patent number: 5294057Abstract: A solenoid operated liquid spray gun for use in directing small volume, air atomized liquid at short operating intervals. The spray gun includes a housing having pressurized liquid and air inlets, a solenoid coil contained within the housing, and a fluid control module disposed within the solenoid coil for controlling the flow of liquid from the liquid inlet through a discharge nozzle. The solenoid coil and module further define an annular air passage within the housing for communicating pressurized air from the air inlet to the nozzle for facilitating atomization and direction of the liquid discharging from the gun.Type: GrantFiled: April 21, 1992Date of Patent: March 15, 1994Assignee: Spraying Systems Co.Inventor: Richard J. Hamilton
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Patent number: 5259880Abstract: An impeller as used in a projecting construction apparatus for a concave section of a molten-metal-discharging hole is supported on a rotating shaft for redirecting flow of impinging projection material. The impeller includes a plurality of vanes which are attached to the rotating shaft with a specified twisting angle relative to the rotating shaft. A material supplying pipe is directed upon the plurality of vanes, so that, upon impingement of the projection material upon the plurality of vanes, the projection material is projected outwardly and in a direction nearly opposite to the predetermined direction of impingement of the projection material supplied through the material-supplying pipe.Type: GrantFiled: July 17, 1991Date of Patent: November 9, 1993Assignee: Kurosaki Refractories Co., Ltd.Inventors: Masayuki Fujita, Sueki Kubo, Hiroyuki Ito
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Patent number: 5258073Abstract: A system and method for preventing a deposition of a coating medium on at least a predetermined area of workpieces to be at least partially spray coated with the coating medium during a continuous spray coating operation. A covering arrangement is applied to the at least one predetermined area of the respective workpieces upon which the deposition of the coating medium is to be prevented prior to the continuous spray coating operation. The covering arrangement and the workpieces are simultaneously and synchronously advanced to the spray coating station so as to enable the continuous spray coating operation of the workpieces, with the predetermined areas covered by the covering arrangement being protected from deposition and/or contamination by the coating medium.Type: GrantFiled: September 28, 1990Date of Patent: November 2, 1993Assignee: Precision Tool, Ltd.Inventor: Christian Meier
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Patent number: 5248529Abstract: An apparatus and method for processing cylindrical and belt-like substrates includes a carousel rotatable to any one of a plurality of planetary stations surrounding the carousel, the carousel having a support structure defining a central horizontal axis and at least one support arm mounted on the support structure for supporting a substrate thereon along a horizontal axis parallel to and radially offset from the central horizontal axis. The support structure reciprocates relative to any one of the plurality of stations to insert the substrate into and withdraw the substrate from any one of the plurality of stations, and the at least one support arm is rotatable about its offset horizontal axis to rotate the substrate thereon.Type: GrantFiled: June 28, 1991Date of Patent: September 28, 1993Assignee: Xerox CorporationInventors: John M. Hammond, Mark Petropoulos, Stuart B. Berger, Robert W. Nolley
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Patent number: 5234156Abstract: A process and an apparatus serve for the continuous coating of workpieces, with a coating medium being applied to a zone to be coated on the workpiece that is passing the zone, and with heat being applied in this coating procedure, to produce a film from the coating medium at the zone. To reduce the size of the installation, a synthetic resin is sprayed toward the zone that is passing through, and heat is applied, at least predominantly, before the sprayed synthetic resin impinges on the zone, in order to reduce the size of the route up to where the film is formed.Type: GrantFiled: July 9, 1990Date of Patent: August 10, 1993Inventor: Peter Ribnitz
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Patent number: 5232739Abstract: A nozzle, nozzle assembly and method for internally coating containers uses a dual orifice nozzle and method to direct divergent distinct spray patterns at separate interior surface portions of the container where the coating liquid is required most. The nozzle comprises a generally cylindrical body having a forward portion, a middle portion, a rear portion, a first conduit passageway extending longitudinally therethrough terminating in a first opening disposed in the forward portion, and a second conduit passageway extending longitudinally therethrough terminating in a second opening formed in the forward portion of the nozzle body. The first and second conduit passageways direct the separate sprays of coating liquid generally forward of the nozzle body in separate distinct patterns diverging from one another with an acute included angle.Type: GrantFiled: October 21, 1991Date of Patent: August 3, 1993Assignee: Ball CorporationInventor: Thomas C. Strizki
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Patent number: 5232502Abstract: During the installation of underground utilities it is common to utilize an earthmoving machine, such as a hydraulic excavator, to dig a trench and aid in the placement of the individual pipe segments that comprise a conduit or pipeline. Normal placement of the pipe segments require communication between the excavator operator and a laborer that is positioned adjacent the pipe in the trench. As the pipe segments are lowered into position, the laborer insures a proper connection, support, and sealing of each joint in the pipeline. The requirement of another individual in the trench is both inefficient and represents a significant increase in the cost of laying the pipeline. The present invention utilizes a pipe handling apparatus that may be inserted within a segment of pipe with an end face thereof bearing against a flange defined by a pipe supporting cylinder. This connection allows the operator to apply a force to the pipe segment in the direction of engagement with the pipeline to insure connection.Type: GrantFiled: January 13, 1992Date of Patent: August 3, 1993Assignee: Caterpillar Inc.Inventor: Roger L. Recker
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Patent number: 5221025Abstract: A method of dispensing, issuing, or diffusing a liquid (volatile or otherwise) without using a propellant gas, the liquid being a perfume, a cosmetic, an insecticide, or a medicine, for example. The method consists in using a pump type spray head where a liquid is sprayed by being expelled under pressure through a nozzle, and being characterized by the use of a mechanical device during the expulsion stage for obtaining an instantaneous pressure which causes a dose or a spray to be delivered comparable to an aerosol of the type obtained when using a compressed or liquefied propellant gas i.e. an aerosol in which the particles of divided liquid are not greater than 45 microns in size in the liquid phase, and are less than 1 micron in the gas phase, after spraying has occurred, and without spoiling the sprayed substances.Type: GrantFiled: May 24, 1990Date of Patent: June 22, 1993Assignee: Conceptair AnstaltInventor: Yves E. Privas
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Patent number: 5202160Abstract: Apparatus for internally coating a pipe, comprising electric heating means heating a pipe as it is internally spray coated, a plurality of first rollers mounted on a first rotatable shaft having an inlet end proximate the heating means and an outlet end spaced from the heating means, and a plurality of second rollers mounted on a second rotatable shaft parallel to the first shaft and having an inlet end adjacent the heating means. Each second roller is spaced from and adjacent to a corresponding first roller in a paired relationship to thereby define a nesting groove located above the gap between each set of paired rollers. Motive means rotates the shafts and the mounted rollers to rotate the pipe within the nesting grooves of adjacent pairs of rollers. Axial advancing means longitudinally advances the pipe through the heating means and sequentially along the nesting grooves of adjacent pairs of rollers.Type: GrantFiled: May 24, 1991Date of Patent: April 13, 1993Assignee: Inductametals CorporationInventors: James L. Schuppe, David M. Kolaga
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Patent number: 5185183Abstract: A method and apparatus for automatically grit blasting and metal spraying a wall of a cylindrical vessel utilizing a pair of rails with arms slidably disposed thereon, which rotate 180.degree. in unison about the axis of the vessel and then reverse and are moved incrementally along the rails upon completion of each 180.degree. of rotation until the wall of the vessel is grit blasted by a grit blasting nozzle on each arm and then sprayed with multiple thin layers of molten metal by a molten metal sprayer on each arm. The grit blasting nozzle and molten metal sprayer may be interchangeably mounted on the arms or may be both installed and operated separately.Type: GrantFiled: January 10, 1992Date of Patent: February 9, 1993Assignee: Westinghouse Electric Corp.Inventors: John K. Gonda, Benny C. Bachman, Mike Boyer, Jerry L. Bly, Donald Gilliland
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Patent number: 5181668Abstract: An apparatus for inserting a coil of wire into a pipe which includes a rotatable drum for taking up a coil of spring wire, a guide for guiding the coil drawn from the rotatable drum, a push-pull device for applying external forces to the coil for feeding the coil into the pipe and retracting the coil out of the pipe, and a motor for rotating the guide and/or the drum. The drum and the guide are formed separately and are rotatable independently of each other, which rotation results in rotation of the coil of spring wire. The coil of wire has a rectangular or trapezoidal cross-section which enables the wire to effectively run through bends in the pipe without deforming or breaking.Type: GrantFiled: September 26, 1990Date of Patent: January 26, 1993Assignees: Osaka Gas Co., Ltd., Togawa Rubber Co., Ltd.Inventors: Toshinori Tsuji, Koichi Hosoya, Fumio Tsukimoto, Tatsuya Ashida, Katsuyuki Okubo, Tetsuo Bokuhara, Toshiaki Shinzo
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Patent number: 5173325Abstract: A method and apparatus for spraying a solid particulate powder onto the interior surface of tubular articles by intermittently pumping the powder from a fluidized bed of powder through a powder supply line containing an intermittently operated venturi pump and air amplifier, as well as a pair of constantly operated air diffusers and an electrostatic charging apparatus. A powder collection shroud adjacent at least one open end of the tubular article has a carefully regulated vacuum applied thereto in order to collect oversprayed powders.Type: GrantFiled: October 4, 1990Date of Patent: December 22, 1992Assignee: Nordson CorporationInventors: Alan J. Knobbe, Joseph A. E. Pintelon, Daniel Pinault
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Patent number: 5173333Abstract: An apparatus (10) for discharging the internal surface of a plastic pipe (12) provides a saddle (32) having an internal cavity (35) formed therein for permitting threadable engagement of a shaft (24). The shaft (24) has a cutter (40) at one end for penetrating the plastic pipe (12) upon engagement. The shaft (24) also has a nozzle (28) formed adjacent to the cutter (40) for spraying an antistatic fluid (26) into the plastic pipe (12) for discharging the plastic pipe (12).Type: GrantFiled: April 29, 1991Date of Patent: December 22, 1992Assignee: Southwest Research InstituteInventors: Oren Tranbarger, Clarence R. McGinnis, David H. Strain
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Patent number: 5162061Abstract: The device of the invention for introducing liquid composition into the pipes of corrugated cardboard sheets comprises at least one guide bar (3) having a guiding slot (4) for the top edges of the sheets being conveyed below the guide bar. Knives (8) are provided near the bottom edges of the slot. To cut loose narrow top edge areas of the exterior walls of the corrugated cardboard sheets from the adjacent pipe walls the edge areas constituting seals against the side walls of the slot exteriorly of the knives. Injector nozzles (13) open into the slot bottom for injecting composition into the pipes of the corrugated cardboard sheets. The vertical distance between the bottom of the guide bar slot and the conveyor is adjustable. The injectors are connected into a composition circulation circuit.Type: GrantFiled: June 25, 1991Date of Patent: November 10, 1992Inventor: Nils-Ake Sternhamn
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Patent number: 5141774Abstract: The present invention discloses an apparatus and process for coating hollow objects at precise bands within the internal cavity of the object. The process utilizes centrifugal force to apply the fluid to the object. A probe is moved from underneath the object thereby utilizing gravitational forces to prevent spillage of the material from the probe. A computer controls the pumping rate, the vertical movement of the probe and the rotational speed of the probe to allow the machine to precisely coat a band on the internal cavity of an article. The computer controlled operation eliminates the necessity to waste material. One application of the invention is in the coating of the threads of nuts with Teflon.Type: GrantFiled: January 13, 1989Date of Patent: August 25, 1992Inventors: Michael W. Prittinen, Scott A. Hale, Scott Bellinger, Steve Nisbett, Gary Mulder, Timothy Gaipa
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Patent number: 5141771Abstract: An apparatus for coating samples or small quantities of internally and externally threaded fasteners includes a powder feed, an induction heater, and dust collection system. A reciprocating, magnetized holder engages a friction drive to rotate a stud in front of a spray nozzle. In another embodiment, a nut sample machine includes a reciprocating powder spray nozzle mounted on an air cylinder and a water cooled support block for the nut. In a third embodiment a hydraulically controlled gate is sequenced with the reciprocating powder feed, providing a continuous coating operation.Type: GrantFiled: October 22, 1991Date of Patent: August 25, 1992Assignee: Nylok Fastener CorporationInventors: Anthony DiMaio, Richard J. Duffy, Eugene D. Sessa
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Patent number: 5138969Abstract: A device for cleaning the gas nozzle of a welding torch in which weld splatters have accumulated has a rotatable cutter which is axially movable into and out of a gas nozzle and the cutter is provided with a nozzle and passages for spraying an anti-adhesive agent into the gas nozzle either while the cutter is scraping or as the cutter is being withdrawn from the gas nozzle.Type: GrantFiled: December 31, 1990Date of Patent: August 18, 1992Inventor: Friedelin Thielmann
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Patent number: 5128177Abstract: Arrangements are disclosed for an automatic mobile and components thereof together with a new mass transit system for said mobile wherein cost reductions, manufacturing simplicity and new methods of travel are obtained primarily through the use of Integrated Sub Systems, Symmetry, Remanufacturability, Transfusion Coatings, and an Automatic Transport Mode thereby resulting in elimination of large automotive assembly plants and the haulaway delivery industry with subsequent opening-up of competition which will allow new automotive industries to form with very minimal ini-investments.Type: GrantFiled: February 28, 1990Date of Patent: July 7, 1992Inventor: Anthony M. Vecellio
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Patent number: 5104686Abstract: Apparatus for applying a conductive coating of DAG material to the inner surface of a cathode ray tube (CRT) funnel includes a stationary DAG spray gun and a movable DAG rotating slinger. The CRT funnel is rotated to allow the stationary spray gun to deposit a first DAG coating on an intermediate flared portion of the inner surface of the funnel, including the location of its anode button. The DAG slinger, which includes a rotating disc for radially discharging the DAG, is then displaced through the neck portion of the CRT funnel toward the open, enlarged end of the funnel to deposit a second DAG coating which overlaps the first DAG coating. The apparatus includes a variable DAG flow control arrangement for depositing a DAG coating of uniform thickness over the inner surface of the CRT funnel, as well as a DAG cleaning and recovery arrangement for preventing DAG not deposited on the CRT funnel from escaping to the environment and for recovering this DAG for re-use.Type: GrantFiled: October 12, 1990Date of Patent: April 14, 1992Assignee: Zenith Electronics CorporationInventor: James L. Kraner
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Patent number: 5102468Abstract: An apparatus for applying a descaling agent to the inner surface of a red-hot hollow billet in the production of seamless tubes.Type: GrantFiled: May 3, 1991Date of Patent: April 7, 1992Assignee: Lonza Ltd.Inventors: Hansjorg Furrer, Norbert Richle
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Patent number: 5096746Abstract: A nozzle, nozzle assembly and method for internally coating containers uses a dual orifice nozzle and method to direct divergent spray patterns at separate interior surface portions of the container where the coating liquid is most needed and to minimize misting, overspray and waste. The nozzle comprises a generally cylindrical body having a forward portion, a middle portion, a rear portion, a first conduit extending longitudinally therethrough terminating in a first opening disposed in the forward portion, and a second conduit extending longitudinally therethrough terminating in a second opening formed in the forward portion of the body. The first and second openings are oriented at an acute angle with respect to a central longitudinal axis of the nozzle to direct the separate sprays of coating liquid from the body generally in separate patterns diverging from the central longitudinal axis of the nozzle.Type: GrantFiled: October 15, 1990Date of Patent: March 17, 1992Assignee: Ball CorporationInventor: Thomas C. Strizki
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Patent number: 5092265Abstract: Apparatus for applying a two component coating material to a surface defining a cavity. The apparatus includes injection means for injecting coating material into the cavity and means for generating a turbulent region into which region the coating material is injected and for dispersing the coating material radially outward toward the surface. The present invention also employs a novel method for applying a coating to the surface of a symmetrical cavity comprising the steps of advancing a coating apparatus mounted at the end of an elongated support member into the cavity to be coated and applying the coating to the interior surface of the cavity.Type: GrantFiled: October 23, 1989Date of Patent: March 3, 1992Inventors: J. David Hughes, William V. Haberer, Michael J. Gilligan, Sr.
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Patent number: 5090355Abstract: An apparatus for coating samples or small quantities of internally and externally threaded fasteners includes a powder feed, an induction heater, and dust collection system. A reciprocating, magnetized holder engages a friction drive to rotate a stud in front of a spray nozzle. In another embodiment, a nut sample machine includes a reciprocating powder spray nozzle mounted on an air cylinder and a water cooled support block for the nut. In a third embodiment a hydraulically controlled gate is sequenced with the reciprocating powder feed, providing a continuous coating operation. Methods for applying coating to the samples include steps that employ these embodiments.Type: GrantFiled: October 20, 1989Date of Patent: February 25, 1992Assignee: Nylok Fastener CorporationInventors: Anthony DiMaio, Richard J. Duffy, Eugene D. Sessa
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Patent number: 5066518Abstract: A method for preserving cavity spaces, particularly in an automobile chassis, is provided wherein wax is applied onto the inside walls of the cavity space to be preserved, being applied with application nozzles. The wax is heated and the heated and liquified wax is supplied under pressure to a pre-atomizer nozzle and is atomized by the latter. At the same time, compressed air is heated and is mixed in its heated condition to the jet of wax drops emerging from the pre-atomizer nozzle and relaxed. Finally, the hot mixture of wax drops and air is supplied to the application nozzle and the latter sprays it onto the walls of the cavity space to be preserved. An apparatus for the implementation of this method is composed of a heatable delivery line for the hot and liquified wax, of a pre-atomizer nozzle having a following discharge tube, of a compressed air delivery line having an air heater and of a nozzle tube having application nozzle apertures.Type: GrantFiled: March 6, 1990Date of Patent: November 19, 1991Assignee: J. Wagner GmbHInventor: Willy Klingen
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Patent number: 5061510Abstract: In a powder coating facility wherein powder entrained with conditioned air sprayed from a feed conduit (11) to a workpiece, such as a can body (51), and excess powder is returned by suction by means of exhausts (29, 25), a conditioning chamber (21) is arranged around the coating zone (15) in order to prevent contamination of the dispensed powder due to influences of the enviroment (U). An air flow (S) is provided, produced from openings (23) of the chamber (21), to conduct the can bodies (51) into and through the chamber (21). The air flow from the openings of the chamber prevents influences of the ambient surroundings of the chamber powder sprayed and retrieved in the powder coating facility.Type: GrantFiled: November 30, 1988Date of Patent: October 29, 1991Assignee: Prazisions-Werkzeuge AGInventors: Hans Nussbaumer, Felix Walser
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Patent number: 5046450Abstract: An apparatus for the interior coating of cavities, particularly of an automobile body, comprising a spray gun having a nozzle probe plug-in coupling and spray shot trigger means and comprising nozzle probes connected to the spray gun, each thereof being allocated to a defined cavity and being composed of a nozzle tube having a plug-in end, nozzle end and positioning detent is created wherein a spray shot is only output or, respectively, can only be output when a full seating of the positioning detent against the outside wall of the cavity has been achieved. This is achieved in the positioning detent is provided with at least one contact sensor that is in an interactive connection with the spray shot trigger means of the spray gun.Type: GrantFiled: June 15, 1990Date of Patent: September 10, 1991Assignee: J. Wagner GmbHInventor: Willi Klingen
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Patent number: 5043187Abstract: A method whereby a coating layer is formed on an outer surface of a cylindrical substrate by dipping the cylindrical substrate in a coating solution containing dissolved material, and vertically removing the cylindrical substrate from the coating solution. The lower end portion of the substrate which has a thick portion as a sag formed by a run of the coating solution on the outer surface of the substrate is brought into contact with a tapered outer surface of a member having said tapered outer surface immediately after the substrate is removed from the coating solution. Thus, the thick portion is transferred from the lower end of the substrate to the tapered surface. Then, a solvent of the dissolved material is sprayed to an inner wall surface of the substrate while a gap is formed between the lower end of the substrate and the tapered surface, thereby removing the material from a lower end face and the inner wall surface of the substrate.Type: GrantFiled: April 27, 1989Date of Patent: August 27, 1991Assignee: Kabushiki Kaisha ToshibaInventor: Masashi Takahashi
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Patent number: 5038708Abstract: Apparatus designed to coat the internal surfaces of tubular structures, and particularly for coating small diameter tubular structures having porous walls with a controlled coating material which may be a polymer, for example. The arrangement includes structure for rotating the tube to be coated simultaneously with structure for moving a coating applicator apparatus longitudinally through the tube for imparting an evenly dispersed coating throughout the longitudinally extent thereof. The arrangement is such that the apparatus may, selectively, impart a water or other solvent spray against, the already formed coating for extraction of a solvent from the coating. The coating characteristics (i.e., uniformity, thickness and pattern) are controlled by the use of a sintered metal and/or porous applicator, together with a controlled pressurized source of coating material.Type: GrantFiled: January 22, 1990Date of Patent: August 13, 1991Assignee: Becton, Dickinson and CompanyInventors: Stanley C. Wells, David E. Spielvogel, Paul M. Hendess
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Patent number: 5037672Abstract: The device for spraying a coating on the internal faces of a vessel (2) for the transfer of molten metal such as a tundish comprises a spraying lance (3) secured to a carriage (4).The carriage (4) is capable of displacement in translational motion on a guide (6; 106) which extends in a first longitudinal or transverse direction (D; L) of the vessel (2) and which is in turn capable of translational motion on guiding means (7; 107) extending in a second direction (L; D) which is transverse with respect to direction (D; L) aforesaid. These guiding means (7; 107) are themselves mounted on a suppport (8, 12) which is capable of translational motion in the longitudinal direction (D).Type: GrantFiled: September 19, 1989Date of Patent: August 6, 1991Assignee: Daussan et CompagnieInventors: Jean-Charles Daussan, Gerard Daussan, Andre Daussan
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Patent number: 4996940Abstract: Apparatus and method for impregnating and sealing and simultaneously improving the tensile strength of pipeline or conduit buried in the ground. The structure consists of a pair of axially spaced, deformable blocking and sealing devices whose interval is appropriately maintained. One of the blocking devices or "pigs" conveys conduit for introducing air under pressure greater than surrounding hydrostatic pressure on the conduit exterior to the space between the blocking devices to force out water or contaminants and also means for introducing two parts of a compound to impregnate, seal and bond to the interior conduit surface. The structure is also provided with a camera chip on the "pig" which contains the structure for conveying the air and the parts of the compound for observation by remote camera of the operation. The compound is a fast drying compound enabling relatively continuous operation by winching the structure along the conduit.Type: GrantFiled: November 17, 1989Date of Patent: March 5, 1991Inventor: John J. Cleary
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Patent number: 4987001Abstract: A method and apparatus for spraying a solid particulate powder onto the interior surface of tubular articles by intermittently pumping the powder from a fluidized bed of powder through a powder supply line containing an intermittently operated venturi pump and air amplifier, as well as a pair of constantly operated air diffusers and an electrostatic charging apparatus. A powder collection shroud adjacent at least one open end of the tubular article has a carefully regulated vacuum applied thereto in order to collect oversprayed powders.Type: GrantFiled: February 9, 1989Date of Patent: January 22, 1991Assignee: Nordson CorporationInventors: Alan J. Knobbe, Joseph A. E. Pintelon, Daniel Pinault
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Patent number: 4964361Abstract: A spraying nozzle of an installation for varnishing hollow bodies from their interiors and especially for varnishing metallic tubes or cans are connected with a spraying nozzle supporting device by a pivotal joint. In the driven out position of the supporting device when the nozzles are out of the hollow bodies, the spraying nozzles can be rotated through an angle and positioned in a tubular clearing device of a purification plant. The article to be sprayed and the spray nozzle are arranged so that the nozzles and the article may be moved relatively to cause the nozzle to enter into the article and move along its interior and spray the article interior as relative movement between the article and the nozzle is carried out and the nozzle and the article, and a cleaning apparatus are arranged so that the nozzle and the article can move relatively for drawing the nozzle out of the article and they can be shifted relatively through an angle and positioned into cooperative engagement with the cleaning apparatus.Type: GrantFiled: May 10, 1988Date of Patent: October 23, 1990Assignee: Polytype AGInventor: Rene Aebersold
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Patent number: 4938167Abstract: A self-propelled vehicle for use in performing work inside pipes of piping systems, for example, for cleaning or coating the inner surface of the pipe includes at least three traveling assemblies connected to the body of the vehicle by parallel link assemblies. The traveling assemblies are travaeled along the pipe inner surface to be worked on by the operation of a drive unit and transmissions while being pressed against the pipe inner surface by a collapsing assembly. During travel, a liquid can be sprayed onto the pipe inner surface by a nozzle which is rotated.Type: GrantFiled: January 25, 1989Date of Patent: July 3, 1990Assignees: Kubota Ltd., Shin-Toyo Engineering Co., Ltd.Inventors: Koichi Mizuho, Nobuaki Kaitatsu
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Patent number: 4920911Abstract: A process and apparatus for high pressure impact coating of portions of workpieces such as the threaded openings in fasteners in avoidance of contaminating undesired portions of the workpieces with the coating material. A metered quantity of coating material is charged into a passageway and moved by low pressure air to a chamber ahead of an atomizing nozzle. High pressure air is introduced to the passageway and the coating material is fogged into a chamber defined by the workpiece and cooling. Proliferation and impingement of the cloud on the selected surfaces follows under vented conditions. A constriction in the vent line achieves the necessary delay and sets the system for accomplishing the coating. The machine structure facilitates use of the coating device with a wide range of female threaded fasteners and achieves the process steps while providing for flushing the lines and drying the working structure.Type: GrantFiled: October 17, 1988Date of Patent: May 1, 1990Assignee: Peterson American CorporationInventors: Kenneth E. Gould, Eugene A. Hamilton
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Patent number: 4913089Abstract: A computer controlled concrete injector pump and process for lining pipe comprises a pump chamber having an outlet connected to a spray lance through a first check valve and having first and second inlets, one inlet being connected through a second check valve to a hopper, and the second inlet being connected to an injector tube having a piston moveable therein by a hydraulic cylinder. The hydraulic cylinder is controlled by a programmable logic controller in a control system which has provisions for operator input of lining process parameters. The volume and flow rate of material from the pump may be controlled accurately by controlling the movement of the piston within the injector tube. The valve housing of the second check valve between the chamber and the hopper is split into two portions which are connected by a quick-disconnect coupling. The valve housing may be separated for access to its interior for maintenance and cleaning.Type: GrantFiled: July 29, 1988Date of Patent: April 3, 1990Assignee: American Cast Iron Pipe CompanyInventors: Tom G. Atkins, Don E. Gray, George H. Styles
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Patent number: 4908234Abstract: A method and installation for applying an insulating refractory coating comprising at least two layers of equal of unequal thickness, of different compositions and equal or different water contents, onto surfaces such as the interior of metallurgical vessel (1). At least two aqueous pasty hardenable products are successively applied to the surfaces. In the case of each layer of different material, the corresponding products, which are pulverulent and/or fibrous, are successively supplied, continuously or discontinuously, through a single means (10) for spraying the surface to be coated.Type: GrantFiled: March 29, 1988Date of Patent: March 13, 1990Assignee: Daussan et CompagnieInventors: Jean-Charles Daussan, Gerard Daussan, Andre Daussan
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Patent number: 4899516Abstract: A device for sealing two-piece capsules has a capsule carrier and a capsule holder which are movable relative to one another for the purpose of attaching a cap to a capsule body. In order to bond a cap firmly and tightly to the body of a capsule, the device has a nozzle for applying a viscose sealing material to the inside of the cap. To prevent an excess of sealing material from being applied to the cap, the nozzle is provided with a vacuum mechanism in the form of an annular channel by means of which excess sealing material is removed during the application.Type: GrantFiled: October 7, 1988Date of Patent: February 13, 1990Assignee: Robert Bosch GmbHInventors: Eberhard Krieger, Theo Moser
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Patent number: 4892112Abstract: The invention relates to a hand tool for the care of dental instruments which is connectable at its inlet to a pressurized gas source and at its outlet to the inlet sleeve of the dental instrument to be serviced, which hand tool is provided with at least one container for receiving the agent and connected to the presurized gas line leading form the inlet to the outlet of the hand tool. It is the object of the invention to permit a troublefree metering in of even highly viscous agents for the care of the instrument and the dispensing of various amounts of the agents.Type: GrantFiled: August 5, 1988Date of Patent: January 9, 1990Assignee: Ogussa Osterreichische Gold-und Siber Scheideanstalt Scheid und Roessler Gessellschaft M.b.H. & Co. KGInventor: Wilfried Knetsch
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Patent number: 4887546Abstract: The invention relates to the lining of bore holes with cement or the like by apparatus designed to spray cement directly on to the raw face of the hole. Such apparatus in accordance with the invention comprises a spray head, means to drive the head through the hole and means for delivering cement to the head characterized in that the head has an annular chamber into which cement is fed and from which colloidal cement is fed in an annular ring to a rotatable spray disc or arm which is arranged to distribute the cement substantially evenly over the internal surface of the hole.The annular feed enables even spray to take place while avoiding problems associated with axle feeding.Type: GrantFiled: November 25, 1987Date of Patent: December 19, 1989Assignee: Caledonian Mining Co. Ltd.Inventor: Benjamin Mason
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Patent number: 4884960Abstract: A honeycombed structure is extruded and wash coat applied to the interior channels of the structure before the honeycomb structure is separated from the die in which it is formed. This method produces the honeycombed structure using a die that includes a die body having an inlet and an outlet side, a plurality of parallel pins defined by the body that correspond to the shape of the channels in the honeycombed structure, and a discharge zone that communicates directly with the outlet side of the die and is defined by the open area between the pins. The extrudable material enters the discharge zone from a series of feed passages defined by the pins and a plurality of webs that interconnect the pins. Each pin has an interior duct with an opening at the end of each pin. A series of internal passages in the die body receive fluid from one or more ports on the periphery of the die and distribute the fluid to the ducts.Type: GrantFiled: May 6, 1988Date of Patent: December 5, 1989Assignee: Allied-Signal Inc.Inventor: Tai-Hsiang Chao
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Patent number: 4870921Abstract: A device for positioning a number of working implements, for example spray nozzles, to certain working or treatment point on a car body as the latter is supported by an overhead conveyor for travel between different working and assembly stations on a production line. The device comprises a vertically movable base structure and a working implement carrying frame movably supported on the base structure. Hydraulic jacks on the base structure are arranged to accomplish a vertical parallel movement of the frame up towad the underside of the car body until one of four contact sensors indicate contact with the later. A final vertical adjustment of the frame is accomplished by four vertical cylinders which raise the frame in a non-parallel movement until at least three of the four contact sensors indicate contact with the car body. The docking of the frame to the car body is completed by activating two expandable dowels which are introduced into openings in the car body bottom shell.Type: GrantFiled: October 6, 1988Date of Patent: October 3, 1989Assignee: Atlas Copco AktiebolagInventors: Dick L. Svensson, Claes-Erik Soderman
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Patent number: 4869201Abstract: Can barrels of uniform diameter produced from a can barrel forming device by forming a square-shaped blank into a tubular shape with opposite edges joined linearly, are conveyed successively coaxially in spaced relation at a first speed with the joined areas of the can barrels directed upwardly. Then the can barrels are conveyed at a second speed slower than the first speed such that the open edges of the can barrels are coaxially spaced closely with small gaps left therebetween. Paint is continuously applied to the inner and outer surfaces of the joined areas while the can barrels are being conveyed at the second speed with the open edges of the can barrels being closely spaced by the small gaps.Type: GrantFiled: June 4, 1987Date of Patent: September 26, 1989Assignee: Hokkai Can Co., Ltd.Inventors: Nobuo Takahashi, Yuri Takeda, Akira Takamatsu, Yasushi Ito, Keizo Yamaguchi
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Patent number: 4861363Abstract: Lubrication of the parison moulds of a hollow glassware moulding machine is carried out utilizing a spray device in which the discharge of pressurized air from a narrow opening is arranged to entrain surrounding atmospheric air. Liquid lubricant is discharged through a respective opening into this entrained air. Such spray devices have been found to be effective in spraying lubricant down into relatively deep moulds.Type: GrantFiled: November 30, 1987Date of Patent: August 29, 1989Assignee: Graphoidal Developments LimitedInventor: Roy Brown
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Patent number: 4831960Abstract: Cup lubricating process and apparatus in which cup-shaped can bodies are controllably conveyed in spaced relationship to each other through a lubrication application chamber. Lubricant is atomized to particle sizes permitting them to be gas borne and introduced into such chamber from a plurality of locations about the travel path for can bodies. Provision is made for augmented external surface deposition by electrically charging at least a portion of the gas-borne lubricant particles and electrically grounding can bodies individually during passage through such lubricant application chamber. Endless loop conveyor means are provided with adjustable features enabling a travel path to be adapted to differing dimension can bodies.Type: GrantFiled: February 3, 1988Date of Patent: May 23, 1989Assignee: Weirton Steel CorporationInventor: James A. Bray