Patents Examined by Frank T. Yost
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Patent number: 5243893Abstract: A mechanism for positioning a cutting and punching machine relative to a fixed conveyor for feeding material to be processed in a fixed horizontal route into the machine. The positioning mechanism comprises a carriage which supports the machine for back and forth movement laterally of the horizontal feeding route, which carriage is supported in turn on a support providing tracks for lateral movement of the carriage, with the support mounted within a lined pit. A drive unit is mounted on the machine for effecting lateral movement of the carriage, and a second drive unit is mounted within the lined pit below the support for moving the support vertically within the pit.Type: GrantFiled: April 21, 1992Date of Patent: September 14, 1993Assignee: Pitt-Des Moines, Inc.Inventors: James P. Evans, Eldon E. Schultz, Charles D. Smith
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Patent number: 5241889Abstract: An arrangement for cutting sheet metal, particularly sheet metal strips. The arrangement includes a double cutting tool with two outer knives and an inner knife which is movable between the outer knives so as to form two cutting gaps. The outer knives are adjustable relative to each other by adjusting wedges in order to adjust the cutting gaps such that the two outer knives are adjusted by the adjusting wedges synchronously or asynchronously by either the same or a different extent. The two outer knives can be clamped against the adjusting wedges.Type: GrantFiled: December 19, 1991Date of Patent: September 7, 1993Assignee: BWG Bergwerk-und Walzwerk-Maschinenbau GmbHInventors: Oskar Noe, Wilhelm Schwerdt, Dietmar Ulbricht
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Patent number: 5241735Abstract: A radial saw assembly (10) includes a base (14) and a column (22) extending vertically upward from the base. A saw arm (24) is attachable to the column and extends horizontally outwardly therefrom. The arm is vertically movable relative to the column and supports a cutting assembly (26) for cutting a workpiece. The cutting assembly is horizontally movable relative to the saw arm. The saw arm is made by a roll forming process with a minimal number of secondary operations being performed to provide openings (44a-44d, 58, 70a-70c, 74, 92, 94 100) for installing the arm on the column and other components to the arm.Type: GrantFiled: June 3, 1992Date of Patent: September 7, 1993Assignee: Emerson Electric Co.Inventor: Mark R. Henning
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Patent number: 5241733Abstract: A method of making a cloth cutter knife permeable bed formed from a plurality of elongate support members, preferably plastic extrusions, which provides a permeable support surface in a cloth cutting machine upon which a lay-up is supported for cutting by a cutter head. The extrusions are cut up by the reciprocated knife of the cutter head to form a multiplicity of bristles which after subsequent cutting operations of the lay-up create a dense knife permeable bristle bed for supporting the layup in a generally flat manner.Type: GrantFiled: June 9, 1992Date of Patent: September 7, 1993Assignee: Geber Garment Technology, Inc.Inventor: Fredric K. Rosen
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Patent number: 5241751Abstract: A wet blade razor includes improved means for removing shaving matter and drying the blades, comprising a device for completely removing shaving matter from between the double overlapping blades of the razor by incorporation of a piston therein. The piston includes a one way valve which permits air to be drawn through ducts formed in the piston. The air ducts enable the razor to use air pressure forced out of a plurality of air spray holes to create a plurality of bubbles in the water when the razor is immersed in water. The bubbles are forced against the shaving matter to dislodge shaving matter from the blade assembly.Type: GrantFiled: January 7, 1993Date of Patent: September 7, 1993Inventor: Kwang C. Goh
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Patent number: 5241752Abstract: A pole-mounted pruning tool having a shank adapted to support a cutting implement in a disposition suitable for severing a branch or the like. The shank merges into a hook having a jaw. The hook has a slot through which a cutting blade pivots during a pruning operation, the cutting blade cooperating with the jaw to severe a limb to be trimmed. The cutting blade biasing member, which urges the blade into a normally open position outside the bight of the jaw, is substantially received in a recess of the shank so that the pruning tool is less susceptible to becoming caught in congested foliage areas during pruning operations.Type: GrantFiled: July 22, 1992Date of Patent: September 7, 1993Assignee: Fiskars Oy AbInventors: David E. Lutzke, Ernest D. LaBarre, Neil L. Brown
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Patent number: 5241887Abstract: Known are cutting devices for cutting food products with a base plate, an orbital-driven circular knife, a product feed unit and a counterknife. The invention proposes a height- adjustable distance of the circular knife to the counterknife along the cutting plane, and a stationary counterknife.Type: GrantFiled: May 15, 1992Date of Patent: September 7, 1993Assignee: Natech, Reich, Summer, GmbH & Co. KgInventors: Michael Wolff, Herbert Adler
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Patent number: 5241884Abstract: A pair of pull rolls unwind web material from a roll and advance the web at a preselected linear feed rate to a web cutting mechanism. The pull rolls are rotated at a preselected speed to generate the desired linear speed rate for cutting the web at selected intervals to produce blanks of a preselected length. The feed rolls are driven by a servo-motor which is operated by a controller that is microprocessor controlled. The controller is electrically connected to an encoder that is drivingly connected to a rotating knife cylinder of the web cutting mechanism. A selected length of blank to be cut from the web is inputted by the operator through a keypad to transmit a corresponding signal to the controller. In addition, the controller receives a signal from the servo-motor that drives the pull rolls, which signal is representative of the rate of rotation of the pull rolls.Type: GrantFiled: October 11, 1991Date of Patent: September 7, 1993Assignee: F. L. Smithe Machine Company, Inc.Inventors: Eliot S. Smithe, Michael P. Lambert, Jason H. Wilkinson
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Patent number: 5240162Abstract: The present invention teaches a powered tagging system in the forms of either a power attachment for an existing tagger, or a complete powered tagger. This invention virtually eliminates problems associated with carpal tunnel syndrome in users by providing actuating means other than those requiring conventional triggering hand muscles. Means are provided which shield otherwise conventional triggering means. A lightweight, compact, yet powerful power system is provided within a balanced assembly capable of manipulation in one hand. In a preferred embodiment, either hand can be used and no finger pressure is required to activate the system.Type: GrantFiled: February 24, 1992Date of Patent: August 31, 1993Inventor: Charles Block
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Patent number: 5240189Abstract: An apparatus for shredding debris from lawns and trees, such as twigs, leaves and like material has a housing in which a rotor is rotatably mounted about an upright axis. The plane of the rotor is thus generally horizontal and supported on a frame which permits movement across the ground. A vertical shaft engine is mounted on the upper side of the housing and supports the rotor within the housing cavity. The rotor has blades which generate an air flow as the rotor is rotating, to provide a vacuum in the center portions of the rotor. The vacuum draws material through a central opening in the bottom of the housing, and the blades impel the material outwardly toward pivotally mounted shredder blades at the outer periphery of the rotor. The rotor also mounts chipper blades in an upper surface thereof with an upwardly extending guide chute receiving limbs and guiding such limbs into the path of the chipper blades as the rotor is rotated, to chip branches, limbs and the like.Type: GrantFiled: October 25, 1991Date of Patent: August 31, 1993Assignee: Crary CompanyInventors: David S. Majkrzak, Patrick M. Cronin, Duane J. Antonsen
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Patent number: 5240164Abstract: A surgical stapler having a trigger attached to a ratcheting mechanism for preventing the refiring of the stapler trigger with a staple loaded within a forming mechanism. In addition, the mechanism contains driver buffering means to prevent the sharp reduction in opposing force driving formation of a staple. The staples are constantly maintained in proper orientation during transfer from a track to the forming site, and are self-centering on the former, and have an oversized crown so that cold-worked areas on each staple do not hinder forming.Type: GrantFiled: August 18, 1992Date of Patent: August 31, 1993Assignee: Ethicon, Inc.Inventors: Michael A. Murray, John F. Love, James D. Hughett, Randy R. Stephens, Richard F. Schwemberger
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Patent number: 5240163Abstract: A surgical stapling instrument includes a staple cartridge that may be loaded with surgical staples, an anvil mounted to confront the staple cartridge for deforming staples driven theretoward, and advancer for advancing the staple cartridge from an open position toward the anvil to a closed position for clamping tissue to be sutured therebetween, and a driver for driving the staples from the cartridge toward the anvil through tissue clamped between the cartridge and the anvil. A trigger for operating the driver, and a safety mechanism linked to the advancer preventing the trigger from operating the driver when the cartridge is in the open position but permits the trigger to operate the driver only when the cartridge is in the closed position. In addition, a coupling mechanism can removably mount a head assembly and a handle assembly, with each assembly containing a portion of the advancer and driver.Type: GrantFiled: October 30, 1991Date of Patent: August 31, 1993Assignee: American Cyanamid CompanyInventors: Jeffrey A. Stein, David Schiff, Paul Mulhauser, Donald Lamond
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Patent number: 5239902Abstract: The invention relates to a method, an apparatus and sheets of materials for producing marked security threads as are used to increase the protection of documents and parers of value against forgery. The inventive method is for processing, in particular cutting, security threads out of sheets of material in register, the sheets of material being fed to the processing units in exact alignment. The feed principal is based on guiding the sheet of material on at least one edge of the sheet, determining the position relative to one of the edges of the sheet, producing a signal form the determination of position, and positioning the feeding device relative to the processing unit so that the sheet of material runs into the latter in a predetermined position.Type: GrantFiled: February 1, 1990Date of Patent: August 31, 1993Assignee: GAO Gesellschaft fur Automation und OrganisationInventor: Wittich Kaule
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Patent number: 5239905Abstract: An arrangement to position molding, and particularly crown molding, upon a miter table is arranged to include at least one positioning assembly having an adjustment rod threadedly directed parallel to and below the miter saw table, with an abutment plate mounted to a positioning rod that is arranged above and parallel to the adjuster rod, with the abutment plate arranged for engaging the molding for orienting the molding in a predetermined orientation relative to a saw blade of the associated miter table.Type: GrantFiled: October 19, 1992Date of Patent: August 31, 1993Inventor: Gail E. Dunn
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Patent number: 5239758Abstract: A sawing device is attachable to an electric hand drill. The hand drill can be operated by either alternating current or direct current, using a battery. The battery operated drill eliminates the need for electrical cords, so it can be used anywhere. The saw bar may be made of material such as plastic that requires no lubricating oil, is lighter and less abrasive than conventional metal saw bars. There is also a non-metallic insert that will attach to a metal saw bar. This insert may go into the conventional metal saw bars with the same advantages as above. The hand drill rotation is transferred through a connecting shaft to the sprocket that drives the cutting chain, which travels on a chain bar with a single sprocket.Type: GrantFiled: April 20, 1992Date of Patent: August 31, 1993Inventor: Lester G. Lindell
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Patent number: 5239754Abstract: A power take-off system for attachment to the elongated bar of a chain saw. A shaft is rotatably carried by a housing which is attached to the bar of the chain saw. A gear is carried on the shaft and is located in a transverse aperture in the bar such that the gear is driven by the nose sprocket in the bar. The housing serves as a guard over the chain on the bar also. The power take-off system may be provided as a self-contained integral unit which replaces the existing cutting bar on the chain saw.Type: GrantFiled: May 13, 1991Date of Patent: August 31, 1993Assignee: William L. WatsonInventors: William L. Watson, Kenneth E. Watson
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Patent number: 5239756Abstract: A motor-driven hand circular saw, has a base plate, a motor, a drive housing surrounding the motor, a saw blade provided with saw teeth and being in operative connection with the motor, a saw blade housing accommodating the saw blade, an upwardly movable saw shaft having the saw blade, a hinge arranged so that the drive housing together with saw blade is movable upwardly and downwardly normal to the saw shaft with respect to the base plate for cutting depth adjustment. The saw blade is movable in and out. A turning hinge having a turning axis extends in a feed direction so that the saw blade housing is connected through the turning hinge with the base plate, and there is at least one upper and lower handle with respect to the base plate. The saw blade housing with the saw blade is located at the left and the drive housing is located at the right as considered in the feed direction. The hinge for cutting depth adjustment is arranged at the front side of the base plate as considered in the feed direction.Type: GrantFiled: June 16, 1992Date of Patent: August 31, 1993Assignee: Robert Bosch GmbHInventors: David Matzo, Joachim Mueller, Heribert Schramm, Steffen Wuensch, Andreas Hoelderlin
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Patent number: 5239906Abstract: A circular saw arrangement has a table arrangement which provides a support area for the workpiece to be cut. For cutting the workpiece, a saw unit is provided for chop-saw and rip-saw cutting. The saw unit contains a power saw blade which is pivotally lowered from a raised position in the direction of the support area for chop-saw cutting. The axis of the saw blade is spaced from and parallel to the axis of the armature of the motor, and the pivotable movement of the saw blade is centered about the armature axis of the motor so that the motor remains stationary during the chop-saw movement. Elongate guide rods are supported in a cantilevered manner by a vertical support member connected to the table arrangement wherein the distance between the guide rods and the table arrangement remains constant in all positions of the saw blade, and the saw unit is slidably carried on the elongate guide rods for rip-saw cutting.Type: GrantFiled: February 24, 1992Date of Patent: August 31, 1993Assignee: Black & Decker, Inc.Inventor: Andrea Garuglieri
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Patent number: 5239904Abstract: A punch is disclosed, which can be used with an automatic paper feeder or a plane paper copier for receiving sheet-like members one by one from such machine and forming punched holes in each sheet-like member at a punching position thereof. A punching member is disposed in correspondence to the punching position for effecting punching with a predetermined stroke. A dimensional strain generated in an electrical-to-mechanical conversion element such as a piezoelectric element or a magnetostriction element is transmitted after enlargement by an enlarging member disposed to surround the element through a movable output terminal and an operation transmission lever to the punching member to cause high speed operation thereof in a predetermined stroke range. High quality punched holes free from curved edges or the like difficiency thus can be formed even in a continuous feed state without holding the sheet-like members stationary for a while.Type: GrantFiled: August 2, 1991Date of Patent: August 31, 1993Assignee: Max Co., Ltd.Inventors: Morio Yamaguchi, Takashi Uchida
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Patent number: 5240160Abstract: A rotary splitting tool for splitting a web of plastic material to fabricate a fibrillated web, comprising a rotatable body having a plurality of transverse ridges provided on the periphery in a circumferentially equidistant relationship and extending generally parallel to the central rotation axis, and rows of cutting edges provided on the transverse ridges, respectively. Convex walls are provided on the periphery of the body between the adjacent transverse ridges. The convex wall means receives a web to be split so that oscillation of the web during repeated operations of the cutting edges can be minimized to reduce noise and prevent irregular slits.Type: GrantFiled: February 28, 1992Date of Patent: August 31, 1993Assignees: Nippon Petrochemicals Company, Limited, Polymer Processing Research Inst., Ltd.Inventors: Hirotsune Okada, Tsutomu Matsuzaki, Kazuhiko Kurihara, Hiroshi Yazawa, Toshikazu Ohishi