Patents Represented by Attorney, Agent or Law Firm Aaron Passman
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Patent number: 4371837Abstract: A temperature compensating circuit for taking into account operating temperature changes of a Hall effect transducer to compensate for Hall output DC offset changes using a resistance circuit including a thermistor for offset feedback control of an operational amplifier in accordance with varying temperature. The circuit also includes a load response input portion to power the Hall effect transducer to compensate for Hall gain change versus temperature.Type: GrantFiled: November 13, 1979Date of Patent: February 1, 1983Assignee: American Can CompanyInventor: Walter J. Sieverin
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Patent number: 4346814Abstract: A material for protecting the inside surface of a side seamed cylindrical container is disclosed. The material is of a thixotropic nature whereby edge protection is assured for a lap seam, a can seam or a welded seam, the latter being either a lap or butt-type joint. All of the foregoing constructions exhibit certain internal surface irregularities exposing raw metal to the interior of the container which must be appropriately covered in order to maintain sanitary protection of the contents ultimately packed within the container. Thixotropic materials have been found to provide the requisite surface adherence after application and until curing; thus, affording improved coverage of the various raw surfaces.Type: GrantFiled: March 3, 1980Date of Patent: August 31, 1982Assignee: American Can CompanyInventor: Kenneth R. Rentmeester
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Patent number: 4309237Abstract: The present invention pertains to a machine and method of adhering a can opening key to a container and the article formed by such method and machine. More specifically, this invention pertains to the taping of a can opening key to a can body wall by means of a continuous motion high speed machine for applying a polymeric film carrying an adhesive on a surface thereof.Type: GrantFiled: January 18, 1980Date of Patent: January 5, 1982Assignee: American Can CompanyInventors: Harold C. Lemke, Stanley E. Rohowetz
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Patent number: 4272567Abstract: A coating spraying system is shown for use in spraying the internal surfaces of a hollow container. The system includes a spinning element for dispersion of the coating and a specifically configured metering orifice for preshaping the mass of the coating radially disbursed by the spinning head.Type: GrantFiled: January 18, 1980Date of Patent: June 9, 1981Assignee: American Can CompanyInventor: Harry N. Blakeslee
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Patent number: 4262510Abstract: An inverted press for producing multiple drawn metal containers combines in one press the functions of cupping and drawing presses. The press includes a blanking and cupping station and several drawing and redrawing stations, disposed one adjacent the other and rendered serially operative by a vertically reciprocable slide assembly. At each stage of operation the material, semifinished article or finished article is under complete control. A method for producing a drawn container by multiple forming and reforming of a drawn article, is also provided.Type: GrantFiled: July 11, 1979Date of Patent: April 21, 1981Assignee: American Can CompanyInventors: Robert J. Allen, Kurt L. Hahn
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Patent number: 4261746Abstract: This invention pertains to fluxes used in recovery operations for secondary aluminum. The flux herein is formulated in order to minimize the amount of chloride in the slag whereby it can be used as land fill without an adverse impact on the environment or in lieu of bauxite in the manufacture of aluminum or as source of aluminum oxide for the manufacture of aluminum or aluminum salts. The flux uses a combination of sodium chloride and aluminum chloride which form a double salt having vapor pressure sufficiently low to permit the aluminum chloride sublimation, without rapid sublimation, however, sufficiently high to permit the evaporation of chloride salts to provide low chloride slag. The improved flux also permits the heat cycle to be shortened by 10 to 20 percent thereby giving a measurable energy savings.Type: GrantFiled: October 30, 1979Date of Patent: April 14, 1981Assignee: American Can CompanyInventors: Benny Langston, Niranjan M. Parikh, Ronald E. Beese, Carl F. Bauer
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Patent number: 4247325Abstract: A technique for controlling severe chemical reactions which occur when salt containing furnace slags from secondary aluminum melting operations are brought in contact with water is provided. The technique which retards the formation and evolution of hydrogen gas resulting from the reaction of aluminum metal fines with water in the presence of chloride and the formation and evoluation of ammonia gas from the reaction of aluminum nitride with water is accomplished by controlling the pH of the water-solid slurry to be around 8. Consequently, the formation and gaseous evolution of hydrogen is controlled and the evolution of ammonia is eliminated with a concomitant elimination of explosion and fire hazards associated with the uncontrolled chemical reactions.Type: GrantFiled: July 30, 1979Date of Patent: January 27, 1981Assignee: American Can CompanyInventors: Ronald E. Beese, Niranjan M. Parikh, Carl F. Bauer
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Patent number: 4233932Abstract: A coating spraying system is shown for use in spraying the internal surfaces of a hollow container. The system includes a spinning element for dispersion of the coating and a specifically configured metering orifice for preshaping the mass of the coating radially disbursed by the spinning head.Type: GrantFiled: November 17, 1978Date of Patent: November 18, 1980Assignee: American Can CompanyInventor: Harry N. Blakeslee
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Patent number: 4233331Abstract: The present invention pertains to a machine and method of adhering a can opening key to a container and the article formed by such method and machine. More specifically, this invention pertains to the taping of a can opening key to a can body wall by means of a continuous motion high speed machine for applying a polymeric film carrying an adhesive on a surface thereof.Type: GrantFiled: July 31, 1978Date of Patent: November 11, 1980Assignee: American Can CompanyInventors: Harold C. Lemke, Stanley E. Rohowetz
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Patent number: 4218004Abstract: Apparatus for incremental feeding of soft metal, foil, paper or plastic strip into a machine. The apparatus employs a pair of gripping means which cooperate to advance the strip incrementally without marring or otherwise defacing the soft surface. The first gripping means reciprocates back and forth to advance the strip. The second gripping means is stationary and retains the advanced strip to prevent its retreat when the first gripping means returns for the next stroke.Type: GrantFiled: December 21, 1978Date of Patent: August 19, 1980Assignee: American Can CompanyInventor: John W. Rouse
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Patent number: 4213538Abstract: The instant invention relates to an end closure or cover for a metal container comprising a substantially flat sheet metal lid seamed about its extremity to the container body closing the body end. The lid has a pour opening having a closure hingeably connected to the lid and closing the pour opening provided to retain the closure against inward displacement thereby resisting atmospheric pressure and premature opening of the container and against outward displacement due to internal pressure during processing.Type: GrantFiled: July 9, 1979Date of Patent: July 22, 1980Assignee: American Can CompanyInventor: Alfred H. Boardman
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Patent number: 4213319Abstract: A thickness gauge is shown for measurement with each stroke of a metal blanking and cupping press. The gauge is adapted to be carried with the press ram adjacent to the blanking die. The gauge includes a thickness feeler plunger and reference support for carrying contact pins. The feeler and the support for the pins are mounted for relative motion with respect to the moving part of the press and for limited relative motion with respect to each other whereby the gauge can accommodate press overstroke and varying thicknesses of stock.Type: GrantFiled: October 5, 1978Date of Patent: July 22, 1980Assignee: American Can CompanyInventors: Vance B. Gold, Robert P. Vandlik
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Patent number: 4210477Abstract: A laminate of non-ferrous metal foil and heat softenable material is folded to tubular form to juxtapose the margins and the margins are heat sealed by passing the tube through an inductance coil; the inductance field may be intensified by a ferrite bar located in a mandrel over which the tube is fed.Type: GrantFiled: June 30, 1978Date of Patent: July 1, 1980Assignee: American Can CompanyInventors: William S. Gillespie, Hal L. Inglis
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Patent number: 4183639Abstract: A movie camera is shown with a zoom lens capable of automatic focus by movement of the lens system closest to the camera body instead of the front objective. As a result the system is more efficient because the heavy large front objective is fixed during automatic focusing and the focusing system need only move a smaller lens or group of lenses which are closer to the camera body. The variator, the compensator, the fourth lens group or any combination of them can be adjusted for automatic focusing.Type: GrantFiled: November 17, 1977Date of Patent: January 15, 1980Assignee: Bell & Howell CompanyInventor: Michiharu Suwa
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Patent number: 4183640Abstract: A rangefinder mechanism is shown in which the scanning mirror has been replaced with a movable scanning optic. The automatic rangefinder system includes a pair of optical paths, one a reference path and the other a scanned path, which are lead to impinge upon a photosensitive surface for comparison purposes. The output of the photosensitive surface is used to adjust the main lens of the camera. The range of the movable optic is coordinated with the position of the main lens of the camera as feedback and adjustment of the rangefinder.Type: GrantFiled: January 23, 1978Date of Patent: January 15, 1980Assignee: Nihon Beru-Haueru Kabushiki KaishaInventor: Masao Abe
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Patent number: 4174158Abstract: A device for transporting slides in a horizontal plane to be projected by a slide projector. More particularly, a retaining means adapted to tolerate bowed slides by having clearance grooves for receiving the bowed slides and for permitting same to set level thereupon.Type: GrantFiled: September 18, 1978Date of Patent: November 13, 1979Assignee: Bell & Howell CompanyInventors: Frank W. Betlejewski, Donald J. Peterson
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Patent number: 4171890Abstract: Disclosed is a reflex rangefinder system for a camera having a pair of li reflecting members mounted to reflect light rays from the scene in the viewfinder system. The members are dichroically coated with different complementary colors such that the dual image formed when the objective lens is out of focus have different colors to enhance the distinction for easy focusing.Type: GrantFiled: December 27, 1977Date of Patent: October 23, 1979Assignee: Nihon Beru-Haueru Kabushiki Kaisha (Bell & Howell Japan, Ltd.)Inventors: Yoshiaki Mizuki, Michiharu Suwa
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Patent number: 4162123Abstract: A technique is shown for automatically adjusting the sensitivity of an auto focus device in accordance with the level of light intensity of the subject. Sensitivity correction is required because the timing of the automatic focus signal is directly related to the intensity of the light from the subject. In systems where the timing of the automatic focus signal is used to determine the distance of the subject from the camera signal, correction is absolutely essential. A supplementary photo cell is used to measure the light coming from the subject and set the sensitivity of the automatic focus system.Type: GrantFiled: November 29, 1977Date of Patent: July 24, 1979Assignee: Nihon Beru-Haueru Kabushiki KaishaInventor: Tadao Isono
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Patent number: 4159169Abstract: Disclosed is an improvement in an automatic focusing system for use with an ptical instrument having a focusable objective which is adjustable in response to optical and electronic components of the system for determining object distance of a remote subject by comparing images of scanning and reference optical systems. The scanner of the optical system is driven oscillatably across an angle to detect a subject between infinity and the minimum focus condition of the objective lens. The present invention relates to improvements in an automatic focusing system for use with an optical instrument having a focusable objective. More particularly, the improvement relates to optically correcting the images transmitted via the optical system to overcome problems of asymmetry of image position and/or intensity.Type: GrantFiled: May 30, 1978Date of Patent: June 26, 1979Assignee: Nihon Beru-Haueru Kabushiki Kaisha (Bell & Howell Japan, Ltd.)Inventor: Hideharu Sato
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Patent number: RE30058Abstract: Disclosed for a sound motion picture camera is an improved shuttle speed trol device including a film loop sensor sensitive to slight variations in the film loop for causing the speed of the shuttle to be changed by a simple brake device utilizing powers of the drive motor whereby less force is required for sensing the size of the film loop to maintain picture-sound synchronization.Type: GrantFiled: September 22, 1977Date of Patent: July 31, 1979Assignee: Nihon Beru-Haueru Kabushiki Kaisha (Bell & Howell Japan, Ltd.)Inventor: Yukio Katahira