Work Advance Occurs During Return Stroke Of Tool Patents (Class 83/257)
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Patent number: 8126586Abstract: The invention relates to methods and machine tools for processing workpieces, in which a workpiece and one or more processing tools are moved relative to each other with a positioning movement, an outward-stroke movement, and a return-stroke movement. In the positioning movement, the workpiece and the processing tool are positioned relative to each other in a positioning direction, in a return-stroke movement the workpiece and the processing tool are moved relative to each other and away from each other in a return-stroke direction transverse to the positioning direction, and in the outward-stroke movement the workpiece and the processing tool are moved relative to each other and towards each other in an outward-stroke direction transverse to the positioning direction. The return-stroke movement and the outward-stroke movement are executed during the positioning movement.Type: GrantFiled: December 4, 2008Date of Patent: February 28, 2012Assignee: TRUMPF Werkzeugmaschinen GmbH + Co. KGInventors: Ulrich Bressler, Peter Demel, Michael Krutzke
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Patent number: 7802504Abstract: A web transport system operates cyclically to advance a web and provide a synchronization signal at a known point in a cutting cycle. A drive system oscillates a cutting knife from a resting position to an active position and back in response to an actuating signal. A sensor in the path of the cutting knife provides a position signal when the cutting knife is at a predetermined position that is substantially different than the resting position. A controller receives the synchronization signal, provides the actuating signal at a time relative to the synchronization signal, receives the position signal, and adjusts subsequent actuating signals in response to the position signal so that the cutting knife arrives at the predetermined position substantially at a predetermined point in the cutting cycle.Type: GrantFiled: June 21, 2002Date of Patent: September 28, 2010Assignee: Smart Bottle Inc.Inventor: Kenneth R. Wilkes
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Patent number: 7789781Abstract: The timing belt and a coupling structure of the same are disclosed, in which a stress focused at a corner portion decreases by forming an optimum shaped groove at a corner portion of a timing belt, so that it is possible to largely increase a fatigue life span of a timing belt and a durability of a timing belt. In addition, noises and vibrations can be minimized by forming a through hole at a threaded surface of a timing belt or a threaded portion of a sprocket. In the timing belt, which has threads at a belt body, there is provided an improved timing belt comprising a groove formed at a corner portion in which the threads and the belt body contact with each other.Type: GrantFiled: February 2, 2006Date of Patent: September 7, 2010Inventors: Young Doo Kwon, Hyun Wook Kwon, Weon Kook Choi, Hyok Chun Kwon
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Patent number: 7730816Abstract: A press apparatus includes an inputting device, that enables a user of the press apparatus to input working pattern data representing the workpiece, and a display device, that displays a working pattern of the workpiece based on the inputted working pattern data. A tool selecting device selects a plurality of tools required for working the workpiece in accordance with the working pattern data. A calculator calculates a transferring pitch of the workpiece in order for parts of the workpiece to be sequentially arranged in predetermined positions in a feeding direction of the press apparatus with respect to the plurality of tools selected by the tool selecting device. In this regard, the calculator also determines which tool is to be operated in association with the transferring pitch. The press includes a controller that controls the transferring pitch calculated by the calculator.Type: GrantFiled: March 25, 2002Date of Patent: June 8, 2010Assignee: Amada America, Inc.Inventor: Koji Yamamoto
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Patent number: 7685916Abstract: A clamping mechanism for a food slicing machine having a product holder that is driven cyclically through a food slicing blade along an arcuate or linear path. The clamping mechanism is driven by the drive means that drives the product holder, thereby assuring the timing of the clamping during the cutting portion of the stroke. A drive rod extends from the drive means, which can be a driveshaft, and extends to a plate that is pivotably mounted to the product holder. The plate pushes plungers through the sidewall of the holder to seat against and clamp the food product against the sidewall of the holder.Type: GrantFiled: September 8, 2006Date of Patent: March 30, 2010Assignee: J. E. Grote Company, Inc.Inventors: Thomas P. Mathues, William J. Locascio
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Publication number: 20090145273Abstract: The invention relates to methods and machine tools for processing workpieces, in which a workpiece and one or more processing tools are moved relative to each other with a positioning movement, an outward-stroke movement, and a return-stroke movement. In the positioning movement, the workpiece and the processing tool are positioned relative to each other in a positioning direction, in a return-stroke movement the workpiece and the processing tool are moved relative to each other and away from each other in a return-stroke direction transverse to the positioning direction, and in the outward-stroke movement the workpiece and the processing tool are moved relative to each other and towards each other in an outward-stroke direction transverse to the positioning direction. The return-stroke movement and the outward-stroke movement are executed during the positioning movement.Type: ApplicationFiled: December 4, 2008Publication date: June 11, 2009Applicant: TRUMPF WERKZEUGMASCHINEN GMBH + CO. KGInventors: Ulrich Bressler, Peter Demel, Michael Krutzke
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Patent number: 7302754Abstract: The present invention provides for a method and apparatus of horizontally stacking a stator core. A central rail structure 34 that runs down approximately the center axis of the stator frame 2, and attached to the central rail structure are adjustable supports 40 that hold the central rail structure within the stator frame. A dolly 36 is positioned on top of the central rail structure 34. The dolly 36 has multiple finger supports 38 disposed on its top and the finger supports match corresponding grooves in stator core laminations 10. Lamination are placed onto the dolly, gaps in the lamination engage the finger supports on the upper inner diameter of the lamination. This allows for the lamination to be horizontally moved into place within the stator frame.Type: GrantFiled: January 7, 2005Date of Patent: December 4, 2007Assignee: Siemens Power Generation, Inc.Inventors: Tom Majernik, James Bauer, George F. Dailey, Barry Sargeant
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Publication number: 20040079212Abstract: A mandreled tube punch includes a cantilevered mandrel and an arbor housing for securing the cantilevered mandrel. The cantilevered mandrel has a bore longitudinally disposed therethrough and the mandrel is adapted to secure a workpiece, or tubular stock, to be punched. An evacuation apparatus in the form of a pushrod is disposed within the longitudinally disposed mandrel bore and is arranged for movement therein and removes punched material from the work area. The punching device further includes a punching means for punching the workpiece and includes a punch housing having an aperture that accepts the workpiece positioned on the mandrel. The punch assembly prevents the workpiece from becoming damaged as a result of punching operations and efficiently, effectively and safely removes punched material from the work area.Type: ApplicationFiled: October 25, 2002Publication date: April 29, 2004Applicant: Unittool Punch & Die Company, Inc.Inventors: Leonard A. Deni, Joseph A. Deni, Frank Deni
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Patent number: 6308604Abstract: A splitting apparatus includes a splitter member with a plurality of blades, and a splitting guide configured to anchor articles so that an article to be split is anchored on a splitting guide when the splitter member is moved across the splitting guide. The apparatus includes a gate which is controlled by a gate controller that selectively opens and closes the discharge aperture positioned adjacent the splitting guide so that the split article can be discharged from the splitting guide. A staging platform is provided adjacent the splitting guide for aligning the articles to be split with the splitting guide and a staging advancer is provided to move articles from the staging platform to the splitting guide, and to discharge the split articles after splitting.Type: GrantFiled: June 18, 1998Date of Patent: October 30, 2001Assignee: Genentech, Inc.Inventor: Jacek Guzowski
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Publication number: 20010001374Abstract: A splitting apparatus includes a splitter member with a plurality of blades, and a splitting guide configured to anchor articles so that an article to be split is anchored on a splitting guide when the splitter member is moved across the splitting guide. The apparatus includes a gate which is controlled by a gate controller that selectively opens and closes the discharge aperture positioned adjacent the splitting guide so that the split article can be discharged from the splitting guide. A staging platform is provided adjacent the splitting guide for aligning the articles to be split with the splitting guide and a staging advancer is provided to move articles from the staging platform to the splitting guide, and to discharge the split articles after splitting.Type: ApplicationFiled: June 18, 1998Publication date: May 24, 2001Inventor: JACEK GUZOWSKI
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Patent number: 5802940Abstract: A dispenser apparatus having a guiding plate (59) and a cylindrical extension (74) with a groove (75), the cylindrical extension preferably being coupled to a cover (22) for enabling backwards movement of a disposable strip (34) in the apparatus prior to the separation of a disposable zone (Z1 to Z9) of the strip. The strip can be moved forward step-by-step, after it has been inserted into the apparatus, via a sliding button (23) which acts on a cursor (35) to which the strip (34) can be coupled and which can circulate into a passage (29) provided in the case (20) of the apparatus. The apparatus is particularly applicable to dispensing devices for objects such as medical tablets, and to blood sugar level measuring devices.Type: GrantFiled: April 29, 1996Date of Patent: September 8, 1998Assignee: Asulab S.A.Inventor: Gerard Jaeger
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Patent number: 5797306Abstract: A lamination notching apparatus for forming dynamoelectric core laminations with winding slots includes a sprocket and drive belt system connecting an indexer to the drive table shaft of a lamination table. The indexer is driven from a punch drive and has an output sprocket. A coupling unit has a first sprocket and a second sprocket mounted on a common same shaft and connected by a passive clamp unit to produce a one-to-one rotation. Drive belts connect the indexer sprocket to the first sprocket and the second sprocket to the drive sprocket table shaft. The sprockets are formed with a special tooth profile to eliminate tooth-to-belt clearance and backlash with a standard HTD profile belt for precise rotary motion. The indexer is movably mounted for tension adjustment of the drive belt. The passive clamp unit includes telescoped tapered sprocket hubs on a tubular shaft, with a spring-loaded clamp nut and bolt passing therethrough.Type: GrantFiled: July 7, 1997Date of Patent: August 25, 1998Assignee: Marathon Electric Mfg. Corp.Inventor: Larry I. Kufahl
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Patent number: 5588345Abstract: A sheet metal working apparatus having a supply mechanism adapted to supply an elongated and flat strip of sheet metal stock to an inlet of a punch press and along a longitudinal axis of the strip. An intermittently operable drive device is provided for effecting an intermittent movement of the strip of sheet metal stock relative to a punch press. A set of tools are provided on the punch press as well as a second intermittent drive device for effecting a metal working engagement of the tools with the sheet metal stock during intervals of time between the movement of the sheet metal stock to produce a continuous strip of a finished sheet metal fin stock.Type: GrantFiled: November 22, 1993Date of Patent: December 31, 1996Assignee: Burr Oak Tool & Gauge CompanyInventors: Lawrence A. Franks, Galen B. Harman, Herman Flint
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Patent number: 5435216Abstract: A method for controlling punch strokes of a punch press machine includes the step of performing a first punching operation with a punching tool wherein a sheet of material is in a first preselected position. A second punching operation is then initiated with the punching tool at a variable hover height before the sheet of material reaches a second preselected position. The variable hover height of the punching tool is determined by the distance between the first and second punching operations. If the sheet reaches a predetermined in-position zone before the punching tool reaches maximum hover height, the ram changes direction moving downward. The punch reaches the material just prior to the work piece coming to a stop thereupon performing the next punching operation.Type: GrantFiled: July 28, 1993Date of Patent: July 25, 1995Assignee: Strippit, Inc.Inventor: William P. Murphy
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Patent number: 4986155Abstract: Apparatus (10) for repeatedly cutting extruded rubber and plastic material (M) at preselected locations along a length thereof including, a frame (11), a drive shaft (35) mounted on the frame, a drive member (25) effecting a selected speed of rotation of the drive shaft, feed rolls (110) intermittently driven by the drive shaft for controllably advancing the extruded material, and a cutting element (B) reciprocally driven by the drive shaft for repeatedly cutting the extruded material advanced by the feed rolls at the preselected locations.Type: GrantFiled: October 11, 1988Date of Patent: January 22, 1991Assignee: Extrusion Services, Inc.Inventor: Donald F. Hays, Jr.
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Patent number: 4836070Abstract: A method and apparatus for producing fibrous web pieces by die cutting the pieces from a continuous web. In the method, a fibrous web is provided having adjacent corrugations usually filled with a powder, and the powder-filled web is passed through a matched cutting die set intermittently which cuts and punches out the individual web pieces. Following the web cut out step, the web pieces are transferred downwardly onto a shuttle conveyor, and the pieces moved forward and simultaneously spread apart to permit subsequent convenient placement of the pieces. The cutting die apparatus includes matched punch and body die units which closely interfit with less than about 0.001 inch total clearance, so as to cut and punch out the fibrous web pieces from the continuous web.Type: GrantFiled: August 15, 1986Date of Patent: June 6, 1989Assignee: Personal Products CompanyInventors: John D. Spano, Michael J. Menard
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Patent number: 4821615Abstract: Slug retainer for the die assembly of a stamping and forming machine comprises a thin sheet of resilient metal which is on the rear end of the removable portion of the die assembly. Slugs produced by the punch and die are pushed through a slug passageway in the die assembly and through a slug opening in the sheet. The metal sheet has an integral ear which bears agains the endmost slug and which is flexed when the endmost slug is ejected. Slugs are thereby prevented from spilling when the removable portion of the die assembly is removed.Type: GrantFiled: February 24, 1988Date of Patent: April 18, 1989Assignee: AMP IncorporatedInventors: Johannes C. W. Bakermans, Abdollah Owzar
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Patent number: 4709610Abstract: A cutting apparatus (10) having blades (42) disposed on a plate (32). A lever arm (50) moves the blades (42) up and down, simultaneously with a ratchet (72). On its upward stroke, the ratchet (72) rotates a chain (76). The rotation of the chain (76) moves a conveyor (97) holding the pipe (55) or other material to be cut into a position for the next cut.Type: GrantFiled: June 30, 1986Date of Patent: December 1, 1987Inventor: James R. Pool
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Patent number: 4426899Abstract: Gas burners; particularly, apparatus for punching holes or ports in gas burner tubing. The apparatus includes a base and superposed frame, a press head with punch, which is reciprocally mounted in the upper part of the frame and a rotatably driven eccentric shaft which engages, so as to reciprocate the press head. As the press head reciprocates, the punch engages the receiving end of a gas burner tubing which is supported in a tube collar positioned within the lower part of the frame. The trailing end of the tubing is supported upon a tube arbor which is advanced incrementally towards the tube collar, as the punch is reciprocated. The apparatus is characterized by its capability of rapid punching of a longitudinally aligned series of ports in a gas burner tubing, with precise adjustment of port size and distance between ports.Type: GrantFiled: February 25, 1981Date of Patent: January 24, 1984Assignee: Burner Systems International, Inc.Inventors: Kelso M. Long, Leonard Pharr, Earl J. Phaar
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Patent number: 4269094Abstract: A punching apparatus, particularly a device for longitudinally advancing, while punching, a series of longitudinally aligned ports in cylindrical tubing of the type used in gas burners. The apparatus is distinguished by its employment of a single drive system for advancing and punching, together with adjustments for varying the height of the tubing, the depth of the punched port, and the longitudinal spacing between ports.Type: GrantFiled: September 17, 1979Date of Patent: May 26, 1981Assignee: Burner Systems International, Inc.Inventors: Kelso M. Long, Leonard Pharr, Earl J. Pharr
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Patent number: 4187750Abstract: A machine for cutting a continuous material of elongate length into predetermined lengths comprises conveying means and cutting means operatively associated therewith, the conveying means being rotatable by an angular amount corresponding to the length of a piston of pneumatic ram, and the cutting means being actuated after a preselectable integral number of steps of movement of the conveying means. The operation of the machine is remotely controlled by a pneumatic circuit arrangement.Type: GrantFiled: March 20, 1978Date of Patent: February 12, 1980Assignee: Yoshida Kogyo K KInventors: Kenichiro Ito, Kurt Schischkoff
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Patent number: 4150741Abstract: This invention relates to an apparatus for distributing products by packaging them in individual containers connected together to form a strip, and cutting each individual product unit from the strip which is fed stepwise to being each terminal product unit into a cutting position during each distributing cycle. The apparatus comprises a coin box, a cutting mechanism arranged to separate the terminal product unit from the strip when a token or coin is inserted into the coin box, and a feed mechanism arranged to cause advancing of the strip by one step when the cutting mechanism returns to a rest position.Type: GrantFiled: April 25, 1977Date of Patent: April 24, 1979Inventor: Gino Rubin