Through Return (noncutting) Stroke Patents (Class 83/588)
  • Patent number: 5012712
    Abstract: A tool holder for a punching machine includes a housing attached to the frame of the machine for the purpose of accommodating a punch holder with a number of punches capable of actuation as required. The housing is essentially coaxial with the cutter slide of the machine. The punches are arranged with equal spacing around a pitch circle which is coaxial with the cutter slide and the housing, and eccentrically in relation to the cutter slide. Extending directly in line with each punch is a push-rod, which is supported in such a way as to permit its axial movement inside the housing in parallel with the common axis of the housing and the cutter slide. Each push-rod is so arranged as to be actuated by an impact heel capable of rotating relative to the housing about the axis of the latter.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: May 7, 1991
    Assignee: Pullmax AB
    Inventor: Bengt H. Nordquist
  • Patent number: 4991478
    Abstract: The excess covering material is trimmed from a workpiece using a blade assembly having side by side blade segments with cutting edges aligned with the contour to be cut. A rubber roller applies a longitudinal cutting force to the blade segments in sequential fashion by rolling across the blade segments ends opposite the cutting ends. The blade segments are returned to the noncutting position by a tension wire threaded through a notch in the shaft of each of the blade segments. Cutting pressure is adequate to cut through at least three layers of covering material without scoring the substrate. The rubber roller provides certain resiliency which helps control the cutting pressure.
    Type: Grant
    Filed: July 26, 1989
    Date of Patent: February 12, 1991
    Assignee: Reflex Trim, Inc.
    Inventor: Wayne F. Riley
  • Patent number: 4967628
    Abstract: A compact paper cutter and perforated edge paper trimmer apparatus which comprises: a base, a base cover hingedly connected to the base to move between an open and closed position, the base cover having a slidable knife edge for cutting paper against a hard strip material on the surface of the base when in a closed position over the base, a paper edge guide hingedly connected to the base to move between an edge guide position generally perpendicular to the base and a closed position adjacent the base, and perforated edge holding teeth and a lever to move the teeth between an upright perforated edge holding position above the base surface and a non-holding position below the base surface.
    Type: Grant
    Filed: April 4, 1989
    Date of Patent: November 6, 1990
    Assignee: Curtis Manufacturing Company, Inc.
    Inventors: Thomas W. Judd, Edward L. Hames
  • Patent number: 4947719
    Abstract: A punch and die system is disclosed as comprising punch and die templets serving to positionally locate punch and die assemblies relative thereto solely adjacent the region at which punching of a workpiece occurs in combination with guide assemblies for positionally locating the punch and die templets one to the other. The punch and die assemblies are designed to utilize interchangeable punch guide and die members and in a preferred construction a punch element is removably attached to its associated driver and shaped to permit opposite ends thereof to be employed in the punching operation. One or more punch elements may be loosely attached to their associated drivers.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: August 14, 1990
    Assignee: S. B. Whistler & Sons, Inc.
    Inventor: S. Arthur Whistler
  • Patent number: 4947716
    Abstract: A punch and die system is disclosed as comprising punch and die templets serving to positionally locate punch and die assemblies relative thereto solely adjacent the region at which punching of a workpiece occurs in combination with guide assemblies for positionally locating the punch and die templets one to the other. The punch and die assemblies are designed to utilize interchangeable punch guide and die members and in a preferred construction a punch element is removably attached to its associated driver and shaped to permit opposite ends thereof to be employed in the punching operation. One or more punch elements may be loosely attached to their associated drivers.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: August 14, 1990
    Assignee: S. B. Whistler & Sons, Inc.
    Inventor: S. Arthur Whistler
  • Patent number: 4947718
    Abstract: A punch and die system is disclosed as comprising punch and die templets serving to positionally locate punch and die assemblies relative thereto solely adjacent the region at which punching of a workpiece occurs in combination with guide assemblies for positionally locating the punch and die templets one to the other. The punch and die assemblies are designed to utilize interchangeable punch guide and die members and in a preferred construction a punch element is removably attached to its associated driver and shaped to permit opposite ends thereof to be employed in the punching operation. One or more punch elements may be loosely attached to their associated drivers.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: August 14, 1990
    Assignee: S. B. Whistler & Sons, Inc.
    Inventor: S. Arthur Whistler
  • Patent number: 4947717
    Abstract: A punch and die system is disclosed as comprising punch and die templets serving to positionally locate punch and die assemblies relative thereto solely adjacent the region at which punching of a workpiece occurs in combination with guide assemblies for positonally locating the punch and die templets one to the other. The punch and die assemblies are designed to utilize interchangeable punch guide and die members and in a preferred construction a punch element is removably attached to its associated driver and shaped to permit opposite ends thereof to be employed in the punching operation. One or more punch elements may be loosely attached to their associated drivers.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: August 14, 1990
    Assignee: S. B. Whistler & Sons, Inc.
    Inventor: S. Arthur Whistler
  • Patent number: 4878409
    Abstract: An apparatus for cutting circular arcs or holes in a picture mat includes a flat base upon which the mat rests and a platform provided above the base . A disc member is suitably mounted for rotation adjacent the platform about a center axis. A crank mechanism having a axle extending perpendicularly through the disc member and a mounting arm attached to an extending perpendicular arm from the end of the axle are provided on the disc member. This crank mechanism is slidably mounted to the disc member. A cutting blade is then adjustable mounted along the mounting arm and at an angle to the mat. The circles or arcs are cut in the mat by rotation of the crank mechanism--at a location determined by the position of the crank mechanism and of the disc member, and with a diameter determined by the position of the cutting blade relative to the mounting arm.
    Type: Grant
    Filed: January 12, 1988
    Date of Patent: November 7, 1989
    Inventor: Charles H. Carithers, Jr.
  • Patent number: 4876933
    Abstract: A slitter holder has a slitter blade support rod that can be moved relative to a stationary position. The slitter holder comprises a moving mechanism for moving the slitter blade support rod relative to the stationary portion between a slitter blade operation position and a slitter blade rest position, and a clamping mechanism for clamping the slitter blade support rod to the stationary portion when the slitter blade operation position.
    Type: Grant
    Filed: March 22, 1988
    Date of Patent: October 31, 1989
    Assignee: Meisan Co., Ltd.
    Inventor: Yoshinori Tahara
  • Patent number: 4862782
    Abstract: A punch and die pair for turret punch presses including a punch guide with a punch holder slidable therein having a small replaceable punch insert locked axially and rotationally in the punch holder.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: September 5, 1989
    Inventor: Robert E. Ernst
  • Patent number: 4854205
    Abstract: A cutting device comprising a support roller (8) freely rotatable in both directions to absorb the pressure of cutting, and a carrier (9) movable in the direction of the longitudinal axis of the support roller (8) on which is fastened a cutting tool (26,27) which can be brought into contact with the roll of material to be cut and present on the support roller (8). The improvement comprises lowering of the cutting tool (26,27) into an operating position, and raising from the operating position, by turning of an eccentric element (14,34) coupled with a pivotable arm (17) holding the cutting tool (26,27). The cutting tool (26,27) is suspended on the arm (17) and thereby limited in regard to its raising and lowering movement. A leaf spring (21) fixed on the arm (17) is braced on the upper end (28) of the cutting tool (26,27) to exert a penetrating force on the cutting tool (26,27) when the arm (17)is lowered.
    Type: Grant
    Filed: May 10, 1988
    Date of Patent: August 8, 1989
    Assignee: Rotring-werke Riepe KG
    Inventor: Gerold Anderka
  • Patent number: 4843931
    Abstract: A punch and die system is disclosed as comprising punch and die templets serving to positionally locate punch and die assemblies relative thereto solely adjacent the region at which punching of a workpiece occurs in combination with guide assemblies for positionally locating the punch and die templets one to the other. The punch an dide assemblies are designed to utilize interchangeable punch guide and die members and in a preferred construction a punch element is removably attached to its associated driver and shaped to permit opposite ends thereof to be employed in the punching operation. One or more punch elements may be loosely attached to their associated drivers.
    Type: Grant
    Filed: September 1, 1987
    Date of Patent: July 4, 1989
    Assignee: S.B. Whistler & Sons, Inc.
    Inventor: S. Arthur Whister
  • Patent number: 4843930
    Abstract: The apparatus comprises axially aligned punches 1 and 2 which are operated to cooperate with dies 3 and 4 to trim the flanged ends of a tubular article. The dies are formed in two halves which are opened to allow an article to be positioned at the work station and are then closed around the ends of the article. The punches, dies, and an article delivering mechanism are driven in timed relation from a motor 5.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: July 4, 1989
    Assignee: MB Group plc
    Inventor: Mark T. Ashbolt
  • Patent number: 4821614
    Abstract: A punch apparatus for punching holes in thin sheet material including a frame, a punch element mounted on the frame for rectilinear movement, which further includes a planar element of conductive material mounted on the punch element, a coil on the frame mounted adjacent to the planar element, a carriage for supporting and positioning the sheet in the path of the punch element, leads connected to a source of electric current to energize the coil, a mechanical arrangement to rebound the punch element, and a programmable apparatus to selectively move the carriage and energize the coil to thereby produce a punched hole pattern in the sheet.
    Type: Grant
    Filed: January 6, 1988
    Date of Patent: April 18, 1989
    Assignee: International Business Machines Corporation
    Inventors: Russell W. Fleet, David C. Long, Karl F. Stroms, Gerhard Weiss
  • Patent number: 4802393
    Abstract: The subject piercing die is particularly adapted for piercing a hole in a blank having an open interior and an outer wall defining a closed figure. The piercing is done from the interior of the blank through the wall to the outside of the blank. The piercing die includes a base with a slide movably mounted on the base. A guide is movably connected to the slide to control movement of the slide to a straight line movement. A female die having a blank receptacle for holding the blank is mounted on the base. The female die has a cutting aperture extending through a portion of the female die and intersecting the blank receptacle. A male die is mounted on the slide and is positioned within the blank receptacle for mating with the cutting aperture to cut a hole in a blank positioned in the receptacle. The male die cuts a hole in the blank from the interior of the blank through the outer wall to the outside of the blank.
    Type: Grant
    Filed: November 4, 1986
    Date of Patent: February 7, 1989
    Assignee: Ecological Systems, Inc.
    Inventors: Henry Gruchalski, Albert Gruchalski
  • Patent number: 4785695
    Abstract: The excess covering material is trimmed from a workpiece using a blade assembly having side by side blade segments with cutting edges aligned with the contour to be cut. A rubber roller applies a longitudinal cutting force to the blade segments in sequential fashion by rolling across the blade segments ends opposite the cutting ends. The blade segments are returned to the noncutting position by a tension wire threaded through a notch in the shaft of each of the blade segments. Cutting pressure is adequate to cut through at least three layers of covering material without scoring the substrate. The rubber roller provides ceertain resiliency which helps control the cutting pressure.
    Type: Grant
    Filed: October 7, 1986
    Date of Patent: November 22, 1988
    Assignee: Reflex Trim, Inc.
    Inventor: Wayne F. Riley
  • Patent number: 4757733
    Abstract: A punch main body, consisting of a base portion and a support portion, is formed from one or two extruded profiles, for example of aluminium. Respective end plates, for example of moulded plastics, are preferably fitted to the ends of the profile (5) to maintain overall strength and rigidity so that the thickness of the extruded material can be reduced. A pivotal press bar, which may also be an extruded profile, is effective to move cutting tools downwards through openings in the punch main body. The length of the extruded profile (5) and the positioning thereon of the openings for the cutting tools can be varied without the need for new production moulds, thereby simplifying and reducing the cost of production of a range of different sizes of punch.
    Type: Grant
    Filed: May 5, 1987
    Date of Patent: July 19, 1988
    Assignee: Perforex Limited
    Inventor: Terence Barlow
  • Patent number: 4754674
    Abstract: A cutting and dispensing device (10) having a cutting blade (60) movable along a straight path, a feed means (20) at the entry side of the path of movement and an anvil surface (74) engageable with a pressure wheel (80) at the exit side of the path which, together with the feed means, grip the sheet material during cutting.
    Type: Grant
    Filed: April 17, 1987
    Date of Patent: July 5, 1988
    Assignee: Brandeis University
    Inventor: Daniel Perlman
  • Patent number: 4754676
    Abstract: A device for removing the perforated guide edges from computer paper by a shearing action. The computer paper is supported on a support plate of a first frame, with the line of perforations substantially aligned with a shearing edge provided on the distal end of the support plate. A shearing mechanism is slidably mounted for vertical movement in a second frame which is secured to the top of the first frame. The shearing mechanism includes a shear plate which is movable downward for engagement with the computer paper along the line of perforations where application of an additional force to the shear plate results in clearly shearing the perforated edges from the computer paper. Springs bias the shear plate upwardly for another shearing operation.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: July 5, 1988
    Inventor: William R. Wessels
  • Patent number: 4742744
    Abstract: A device for manual hole punching of sheet material is made up from extruded profiles, one forming a cover (1), which is movable towards a bottom part (2) formed from two combined sections (7,8). The cover carries punches (22) running in holes (23). A counter-acting spring bias is obtained by spring means (25) inserted between the cover and bottom part.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: May 10, 1988
    Inventor: Bo E. Lindberg
  • Patent number: 4713995
    Abstract: A hole punch assembly for punching holes in papers and such, usually having dual spring-loaded punch units attached to a base member. The punch assembly is constructed from formed sheet steel and includes a rectangular-shaped base member having two spaced-apart rectangular shaped depressions and openings therein, each for receiving a spring-loaded punch unit rigidly attached to the base. The punch unit includes a frame folded to provide a gap through which a punch rod is extended through a hole, the frame enclosing a compression spring located around the punch rod and a spring-retaining shoulder ring is provided in a groove located between the frame and the upper end of the compression spring. The punch unit is rigidly attached to the base member so that the gap has its lower surface flush with the upper surface of the base member, to allow paper stacks or paper sheets for punching to be guided into the gap without any obstructions or hang-up.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: December 22, 1987
    Assignee: Rolodex Corp.
    Inventor: Richard A. Davi
  • Patent number: 4656904
    Abstract: A cutter apparatus is disclosed for cutting elongated food products such as french fry potato strips, to cut them in two or to remove defects. The cutter apparatus includes two independently operated knives which are actuated by pneumatic cylinders controlled by solenoid valves that apply air pulses to such cylinders for fast operation. The valves are operated in response to control signals produced by light sensor means which senses the defect and causes a central processing unit of a computer to produce the control signals. The knife blades are each connected to the piston rod of the cylinder by a flexible resilient connector for causing the blade to move in a non-linear manner downward in response to linear movement of the piston rod for cutting the defect from the food product while such product is moving along a conveyor belt beneath such cutter, without arresting movement of the food product.
    Type: Grant
    Filed: September 4, 1985
    Date of Patent: April 14, 1987
    Assignee: Lamb-Weston, Inc.
    Inventors: Arthur G. Rayment, Herbert W. Johanson, Jr.
  • Patent number: 4656907
    Abstract: A hand-operated punch is formed of molded parts which interfit for easy and rapid assembly and disassembly. This feature is particularly useful if there are paper jams. A handle hooks under a wall of the base. Depressing the handle forces downward a transverse bar recessed to accept the upper ends of the male punch elements, which are spring-biased to travel with the transverse bar. The punch elements reciprocate within a die bar detachably connected to the base. The die bar is formed with a throat for insertion of papers to be punched. The front edge of the base is formed with a transverse groove to accept a male binder element during assembly of a book comprised of the punched paper.
    Type: Grant
    Filed: August 30, 1985
    Date of Patent: April 14, 1987
    Assignee: Velobind, Inc.
    Inventor: Karl Hymmen
  • Patent number: 4651604
    Abstract: Apparatus and method for duplicative notching of the serration edge on a key blank according to the serration edge of an existing key serving as a templet. An axially movable key edge notching punch is controlled by the templet for punching a notch in the serration edge of the key blank corresponding to a notch in the serration edge of the templet when the punch is driven toward the key blank. The key blank and the templet key may be supported in a cassette which is indexible relative to the punch. The cassette and the notching mechanism are especially advantageous for notching the serration edges of key blanks carried by wallet size plastic cards.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: March 24, 1987
    Assignee: Donald F. Almblad
    Inventors: Donald F. Almblad, Michael A. Mueller, Thomas L. Drehobl
  • Patent number: 4644649
    Abstract: Apparatus and method for trimming a reed used in conjunction with a musical instrument includes a support structure and at least one cutting instrument that can be manually coupled to and removed from the support structure. When the cutting instrument is positioned in the support structure, the reed is inserted between a die portion and a punching portion of the cutting instrument. A force applied to a lever mechanism coupled to the support member forces the punching member in to the plane of the die portion thereby trimming the edge of the reed. In addition to the convenient interchangeability of the cutting instruments permitting a plurality of reed sizes to be trimmed, the support structure can be fabricated from a single sheet of material. The number of parts needed for the apparatus is further reduced by having the lever mechanism comprised of two identical parts.
    Type: Grant
    Filed: September 26, 1985
    Date of Patent: February 24, 1987
    Inventors: Roy C. Seaman, Ronald D. McCaul
  • Patent number: 4643084
    Abstract: A machine for making cookies for removably mounted cylinders that spread the dough on a conveyor belt and the dough is automatically formed into cookies. Mechanism for sprinkling material are positioned so that the particulate material falls on the surface where the dough is going to be deposited and on the cookies themselves. A trap for the excess of the particulate material is provided by routing the conveyor belt appropriately. This allows using that particulate material again.
    Type: Grant
    Filed: April 17, 1986
    Date of Patent: February 17, 1987
    Inventor: Isaac Gomez
  • Patent number: 4604930
    Abstract: A light-weight press for punching, forming, etc., in which the guide pins are bored in order that pull rods may be passed therethrough from actuating cylinders to an adjustment mechanism that interrelates the upper ends of the guide pins with the platen of the press. The adjustment mechanism are connected to each other so as to operate simultaneously and ensure that the forces in the press do not become unbalanced. Downward movement of the platen is limited by striking of the upper ends of the guide pins by stop elements associated with the pull rods.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: August 12, 1986
    Inventors: Robert M. Avila, Glenn A. Hoffman, Jr.
  • Patent number: 4594927
    Abstract: An improved multi-hole punch is provided in which the vertical distances between the lower ends of a multiplicity of rod cutters are gradually increased from one end to the other end of the lateral row in which the plurality of rod cutters is arranged. Thus, the rod cutters plunge into paper sheets supported on the base of the punch sequentially in the direction in which the vertical distances of their lower ends from the aforementioned portion of the base increase.
    Type: Grant
    Filed: July 23, 1985
    Date of Patent: June 17, 1986
    Assignee: Carl Manufacturing Co., Ltd.
    Inventor: Chuzo Mori
  • Patent number: 4579029
    Abstract: An electric punch wherein lower blades each are formed in the bottom part of each insertion concavity into which sheets of paper being punched are inserted sideways, and a plurality of elevatable upper blades are formed, each upper blade being lowered into the corresponding lower blade by a solenoid excited in sequence.
    Type: Grant
    Filed: August 16, 1984
    Date of Patent: April 1, 1986
    Assignee: Maruzen Kabushiki Kaisha
    Inventor: Tadao Sunaga
  • Patent number: 4572761
    Abstract: A paper dispensing apparatus includes a platform having a pair of wheels and a housing attached to the platform. A plurality of shafts extend upward from the platform to respectively support different widths of paper rolls. A handle may be attached to the housing to assist manipulation of the apparatus by an operator. Cutting blades are mounted in the housing adjacent the respective paper rolls and operate through vertical movement by means of a drawn cable. A shaft extends upward from the platform to support masking tape rolls at a position to overlap the side edge of the paper rolls. Adjustable retaining collars are provided to accommodate varying widths of paper rolls. Retaining springs are provided to apply tension to the paper rolls.
    Type: Grant
    Filed: July 6, 1984
    Date of Patent: February 25, 1986
    Inventor: James E. Phillips, Sr.
  • Patent number: 4527455
    Abstract: A device for opening envelopes includes a movable knife blade which is mounted on a swingable knife holder and is urged towards a complementary edge which is preferably formed by a further knife blade. The movable knife blade is inclined in its longitudinal direction. A cutting operation is effected at the point of engagement of the movable knife blade with the stationary one. Movement of the movable knife blade causes the edge of an envelope be gradually severed. The knife blades are supported on a base part which preferably has, underneath the cutting parts, a removable waste drawer.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: July 9, 1985
    Assignee: DELTA-REAL Establishment
    Inventor: Francois Morax
  • Patent number: 4506578
    Abstract: An apparatus for applying pneumatic force to a work piece comprising a pneumatic cylinder mechanism including a flexible diaphragm member for applying pneumatic force to a reciprocally mounted piston rod member for transferring force to a working tool element for applying working force to a work piece.
    Type: Grant
    Filed: December 23, 1982
    Date of Patent: March 26, 1985
    Inventors: Harold S. Gaines, Leonard C. Ross
  • Patent number: 4499805
    Abstract: A large punch for piercing a thick bundle of sheets of paper at a time. A gear mechanism is operationally associated with a handle to move vertically a pair of paper holding plates cooperating with a pair of cylindrical piercing blades provided on a base, and thereby reduces the force required for moving the handle for the piercing operation. A base plate, which has a pair of holes each defining a passage for one of the piercing blades, is vertically rotatably supported on the base, and is normally biased upwardly to facilitate removal of the piercing blades from a thick bundle of sheets of paper after it has been pierced. The piercing blades and the paper holding plates are removably attached to the base and the gear mechanism, respectively, so that both of them can be easily changed to new ones if required.
    Type: Grant
    Filed: July 1, 1982
    Date of Patent: February 19, 1985
    Assignee: Carl Manufacturing Co., Ltd.
    Inventor: Chuzo Mori
  • Patent number: 4480374
    Abstract: A tool connects plugs to the ends of communication wires and in particular is used with modular type communication plugs. The tool includes two relatively pivoted handle members that are restrained in the amount that they can be separated and which include a punch that will positively force connector tangs of a plug positioned in a provided receptacle in the tool into the ends of wires of a communication cord to properly and positively connect the individual wires of the cord to the proper terminal of the plug as the handles are squeezed. The tool also has knives which can be used for stripping a specified length from the end of the outer sheath from the insulated wires before inserting the wires into a plug carried in a close fitting receptacle in one of the handle members. The punch has separated lands or bars that separately bear against each contact tang of the plug and in this way force the connecting tang into the individual communication wires.
    Type: Grant
    Filed: October 22, 1982
    Date of Patent: November 6, 1984
    Assignee: Communication Systems, Inc.
    Inventor: Daniel Meyer
  • Patent number: 4471680
    Abstract: An apparatus for supporting and actuating a punch in a press includes a cam unit body, a cam slide slidably supported on the cam unit body for movement along a first line and having first cam surfaces on opposite sides thereof which are angled with respect to the first line, and a U-shaped driver supported on the cam unit body for movement along a second line, the driver having a second cam surface on each leg thereof which is angled with respect to the second line. The slide is disposed between the legs of the driver and each second cam surface engages a respective first cam surface so that movement of said driver into said cam unit body along said second line moves the slide in one direction along the first line. A slotlike opening oriented parallel to the first line extends transversely through the slide and communicates with an internal cylindrical cavity within the slide, which cavity also extends parallel to the first line.
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: September 18, 1984
    Assignee: IEM Ltd.
    Inventor: Roland T. Gerhart
  • Patent number: 4466322
    Abstract: The present invention relates to a punch for office use for making a pair of holes at first or second predetermined spaced apart distances in a card, or like paper to be punched by a pair of punching blades. A pair of right and left blade supporting members each support a punching blade. Each of the punching blades has a longitudinal axis that deviates from the longitudinal axis of the blade supporting member. A punch for either narrow or wide punching can be manufactured by changing the right and left positions of the pair of right and left punching blade supporting members.
    Type: Grant
    Filed: July 1, 1982
    Date of Patent: August 21, 1984
    Assignee: Carl Manufacturing Co., Ltd.
    Inventor: Chuzo Mori
  • Patent number: 4457196
    Abstract: A preloaded spring assembly is disclosed having a compression coil spring received interior of a housing. The housing is made of opposed cup-shaped housing members having open ends with one of the cup-shaped members having a smaller diameter and having its open end projecting into the open end of the second housing member. The respective open ends are configured to provide a lock abutment preventing separation of the housing members beyond a certain dimension whereby the spring positioned interior of the housing members having its opposite ends in contact with the bottoms of the respective cup-shaped housing members is provided with a compressive preload. Also, disclosed is a method of manufacturing the preloaded spring assembly which configures the open ends to provide a mechanical interlock during assembly such that the spring is preloaded at the time of assembly.
    Type: Grant
    Filed: November 10, 1982
    Date of Patent: July 3, 1984
    Assignee: Houdaille Industries, Inc.
    Inventor: Percy L. Cady
  • Patent number: 4377957
    Abstract: The blanking tool has a pair of plates, one of which supports a punch and the other has a mating die cavity. The two plates are resiliently joined together to permit limited reciprocal movement. One of the two joined plates has provisions for mounting to a platen of a punch press.
    Type: Grant
    Filed: July 3, 1980
    Date of Patent: March 29, 1983
    Assignee: The Boeing Company
    Inventor: Warren H. Wheeler
  • Patent number: 4341137
    Abstract: A pneumatic press assembly 10 uses air pressure to power a piston 70 in a cylinder 52 through a power stroke. Springs 76, 78, 80, 82, 84, and 86 oppose the motion of the piston 70. A set of return springs (76 and 78) is effective over the entire stroke of the piston. The return springs are compactly mounted within the cylinder 52 between the bottom of the piston 70 and a shoulder 56 which extends radially inwardly from the cylinder wall. The shoulder also cooperates with a central portion 110 of the piston 70 to prevent rotation of the piston. A second set of springs (80, 82, 84, and 86) is effective only when the piston 70 is within a predetermined distance from the bottom of the power stroke. The second set of springs 80, 82, 84 and 86 is disposed between the bottom 230 of the cylinder 52 and a preload member 234. When the piston 70 approaches the bottom of its stroke, it contacts the preload member 234 which in turn compresses the springs 80, 82, 84, and 86 bringing the piston to a halt.
    Type: Grant
    Filed: October 2, 1979
    Date of Patent: July 27, 1982
    Assignee: The Warner & Swasey Company
    Inventors: Paul A. Leitch, Thomas W. Shinn
  • Patent number: 4294152
    Abstract: A base defining an upwardly facing sheet supporting surface and an elongated support member is mounted on the base and projects upwardly from the sheet support surface. The support member includes spacer structure spacing portions of the support member from the base to define an open slot between the base and the spaced portions of the support member. A pair of aligned support blocks are supported from the support member above the opposite end portions of the slot and an elongated head extends between and is removably journaled from the support blocks. The portions of the support member spaced above the base define upstanding sleeve bores therein normal and opening into the slot and bearing sleeves are mounted in the sleeve bores and have elongated punch members reciprocately disposed therein. The base defines die bores below the slot and opening into the latter aligned with the sleeve bores. Die sleeves are disposed in the die bores.
    Type: Grant
    Filed: May 16, 1979
    Date of Patent: October 13, 1981
    Inventor: Donald E. Land
  • Patent number: 4286490
    Abstract: A force may be applied to any point along a line which may be straight or curved in a plane or in space. For this purpose a force applicator is used which includes a pressure expandable hose section closed at its ends, a reaction member against which the hose rests, and a pressure transmitting plate moving in response to an expansion of the hose. These three elements are held in an operative position relative to one another by a modular frame section which also holds a guide member and a reset element for restoring the hose section to a starting position when no pressure is applied inside the hose. A piston rod extends through the guide member and is operatively connected to the pressure transmitting plate. The modular frame section, the guide member and preferably also the reset element form a modular unit.
    Type: Grant
    Filed: January 17, 1980
    Date of Patent: September 1, 1981
    Assignee: Stanztechnik GmbH R & S
    Inventor: Ernst M. Spengler
  • Patent number: 4271737
    Abstract: A movable insulation puncher includes lancing elements which are used to define slots for receiving shear connectors in a multi-layer panel. The lancing elements are heated by gas burners and are moved along a panel on a carriage, and toward a panel by a crank assembly. Return to a neutral position of the lancing elements is spring assisted, and the carriage can be used to store tools, or to support a workman.
    Type: Grant
    Filed: August 29, 1979
    Date of Patent: June 9, 1981
    Assignee: Butler Manufacturing Company
    Inventors: Thomas W. Steenson, W. Donald Paton
  • Patent number: 4257292
    Abstract: The piercing unit of the present invention is a low-cost device having relatively few parts. The unit comprises a C-frame of cast iron. A hole is drilled from the top of the unit, through the top leg and part way into the lower leg. The bottom of the hole forms a seat for the lower end of the die sleeve. A punch holder slide is machined from tool steel for close-tolerance fit within the hole in the top leg. The slide has an opening extending inwardly from its lower end to receive the punch, and a threaded opening extending inwardly from its upper end to receive a stripper bolt. The punch holder slide abuts a shoulder adjacent to the inner end of the stripper bolt, and thus is backed up in its punching stroke. The punch abuts the threaded inner end of the stripper bolt and is thereby backed up in its punching stroke. Dog point set screws hold the punch assembled with the punch holder slide as the punch is being stripped from the steel it has just pierced.
    Type: Grant
    Filed: November 30, 1979
    Date of Patent: March 24, 1981
    Inventor: James K. Faull
  • Patent number: 4252041
    Abstract: The shearing machine comprises a stationary apron and a moving apron carried by lateral upright members and provided with cutting blades, the moving apron being guided at both ends by means of roller devices adapted to cooperate with guide ramps mounted on bottom lateral extensions of the moving apron. The guiding devices are placed substantially at the level of the horizontal cutting plane while another guiding device is located in the bottom portion of the shearing machine. The extensions are adapted to receive and transmit the cutting power developed by jacks mounted on the stationary apron.
    Type: Grant
    Filed: July 27, 1979
    Date of Patent: February 24, 1981
    Assignee: Promecam Sisson-Lehmann
    Inventor: Pierre G. Cros
  • Patent number: 4249444
    Abstract: The present invention relates to an improved means for the stability control assembly of a cutter of nut former. This means comprizes a driving roller positioned on the center line of movement of the cutter axis enabling the cutter not to roll driving the process of cutting. A plate spring and helical spring cooperate together to reduce the variation range of spring strength, this minimizing wearing of each operating part and to reduce chattering of the cutting tool.
    Type: Grant
    Filed: May 10, 1979
    Date of Patent: February 10, 1981
    Assignee: Chun Zu Machinery Ind. Co., Ltd.
    Inventor: Shi-Chung Lee
  • Patent number: 4227450
    Abstract: A press which has a short ram stroke in which the ram is movable in a single plane in a working direction and return direction, particularly for high speed cutting presses, comprises, a press frame with a ram carried by the press frame which is supported by springs which are rigidly connected to the ram and to the press frame and hold the ram resiliently for movement in the working and return direction but rigidly in all other planes.
    Type: Grant
    Filed: February 1, 1979
    Date of Patent: October 14, 1980
    Assignee: Thyssen Industrie AG
    Inventor: Heinz Kreiskorte
  • Patent number: 4195541
    Abstract: Apparatus for making holes in a web of photosensitive material which is transported in a copying machine has an electromagnet with a reciprocable armature connected to one leg of a U-shaped carrier. The other leg of the carrier supports a material removing tool which penetrates through the web when the electromagnet is energized. The carrier is held against wobbling by a ball bearing which is connected to its one leg and extends with minimal clearance between two parallel guide faces which are machined into a stationary holder for the electromagnet. The holder has a plate-like extension with a hole which receives the tip of the tool subsequent to penetration of such tip through the web. The tool is normally located at one side of the plane of the web, and the extension is located at the other side of such plane.
    Type: Grant
    Filed: June 2, 1978
    Date of Patent: April 1, 1980
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Horst Wildner, Heinz Kolbl, Alois Zachmeier
  • Patent number: 4166404
    Abstract: Described is a hand punch which can be constructed in a narrow compact form and of few and simple parts. It includes a narrow base formed with a plurality (e.g. two) punch pin openings in a straight line along the length of the base, a pair of lever arms pivotably mounted at opposite ends of the base on pivotal axes parallel to the width of the base, and punch pins received in openings in the lever arms and arranged such that a manual force applied to one of the lever arms to move same towards the base, also moves the other lever arm towards the base, and the plurality of punch pins through the openings in the base. The base is preferably constructed of a multi-leg channel member elongated in the direction of its length, the channel member having four spaced legs, the lower two of which define a compartment for receiving the paper chips, and the middle two of which define a slot for receiving the paper sheet to be punched.
    Type: Grant
    Filed: January 6, 1978
    Date of Patent: September 4, 1979
    Inventor: Ehud Almog
  • Patent number: 4148237
    Abstract: An apparatus for simultaneously forming a plurality of terminals from a plurality of lengths of wire and inserting the terminals simultaneously into preformed openings in a plastic part. The apparatus includes a mechanism for simultaneously moving a plurality of lengths of wire which are held in spaced relation to one another to a severing position. The wires may be arranged in both horizontal and vertical planes. At the severing position, a shear is provided for simultaneously severing end portions from the lengths of wires to form a plurality of short wire terminals. The shears and an anvil support the terminals and maintain them in spaced relation to one another after severing for insertion into the preformed openings in the plastic part. The apparatus further includes a tool which supports the plastic part. A slide moves the plastic part and the terminals into engagement with one another to thereby embed the terminals in the preformed openings of the plastic part.
    Type: Grant
    Filed: November 9, 1977
    Date of Patent: April 10, 1979
    Inventor: Maurice H. Brown
  • Patent number: RE30927
    Abstract: An apparatus for simultaneously forming a plurality of terminals from a plurality of lengths of wire and inserting the terminals simultaneously into preformed openings in a plastic part. The apparatus includes a mechanism for simultaneously moving a plurality of lengths of wire which are held in spaced relation to one another to a severing position. The wires may be arranged in both horizontal and vertical planes. At the severing position, a shear is provided for simultaneously severing end portions from the lengths of wires to form a plurality of short wire terminals. The shears and an anvil support the terminals and maintain them in spaced relation to one another after severing for insertion into the preformed openings in the plastic part. The apparatus further includes a tool which supports the plastic part. A slide moves the plastic part and the terminals into engagement with one another to thereby embed the terminals in the preformed openings of the plastic part.
    Type: Grant
    Filed: January 26, 1981
    Date of Patent: May 11, 1982
    Inventor: Maurice H. Brown