Patents Examined by Robert Showalter
  • Patent number: 4936173
    Abstract: A machine tool includes an elongate tool holder which is mounted by a pair of spring strips for pivotal movement on a mounting. One end of the tool holder carries the tool while the other end of the tool holder is moved by an actuator via a rod. Tool positioning signals are fed to the actuator in digital form and are converted to analogue form by a digital-to-analogue converter before being applied to the actuator. The tool holder is of light-weight and low inertia and can thus effect rapid changes of tool position, so exploiting to the full the high rates of positioning signal production of modern machine tool control systems.
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: June 26, 1990
    Assignee: AE PLC
    Inventor: Nigel H. New
  • Patent number: 4889023
    Abstract: An apparatus and method of truncating a tube by having a knife act against a counter-knife which is positioned within the interior of the tube. The counter-knife is maintained in a desired position with respect to the knife by a magnetic apparatus.
    Type: Grant
    Filed: October 29, 1986
    Date of Patent: December 26, 1989
    Assignee: Lhomme S.A.
    Inventor: Jean-Paul Languillat
  • Patent number: 4889024
    Abstract: The device comprises a sectional carrier of closed cross section with a circular bed, a base and channels of distribution and return of oil. A guiding element comprising at least one guiding tube enclosing a bar stock to be machined and a push-piston is removably secured on the bed. The distribution channel communicates through radial openings with the guiding element for delivering to the latter oil under pressure which creates a hydrodynamic bearing supporting the bar stock when the latter is set into rotation by the head stock of the lathe. The sectional carrier has a great rigidity and stability which permits very high speeds of rotation of the bar stock to be machined. The return of oil by closed channels of the sectional carrier is protected against external contamination by impurities or dust.
    Type: Grant
    Filed: September 29, 1988
    Date of Patent: December 26, 1989
    Assignee: Sameca SA
    Inventors: Markus Geiser, Pierre Juillerat
  • Patent number: 4881936
    Abstract: There is provided an apparatus for applying constant pressure to a plurality of anvil rollers for crush-scoring used in combination with crush-scoring cylinders having protrusions extending from the surface thereof. Each anvil roller is supported in a substantially frictionless manner and the constant pressure is supplied by a flexible diaphragm acting on a plunger which can move substantially without friction in a pneumatic cylinder.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: November 21, 1989
    Assignee: Avery International Corporation
    Inventor: Yefim Slobodkin
  • Patent number: 4881931
    Abstract: Apparatus and methods for manufacturing draw tape bags from a web of plastic material are disclosed. The apparatus and methods relate to draw tape bags in which a hem seal, enclosing the draw tape, is formed in the bag without stopping the movement of the web through the hem sealing station.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: November 21, 1989
    Assignee: Presto Products, Incorporated
    Inventor: James E. Buchman
  • Patent number: 4881935
    Abstract: There is provided an apparatus for applying constant pressure to a plurality of anvil rollers for crush-scoring used in combination with crush-scoring cylinders having protrusions extending from the surface thereof. Each anvil roller is supported in a substantially frictionless manner and the constant pressure is supplied by a flexible diaphragm acting on a plunger which can move substantially without friction in a pneumatic cylinder.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: November 21, 1989
    Assignee: Avery International Corporation
    Inventor: Yefim Slobodkin
  • Patent number: 4881933
    Abstract: A draw tape bag is formed from a plastic web. An edge folding unit, a notching unit, a tape inserting unit, a heat sealing unit and a web folding unit form a compact continuous line in a rectangular path. The hem folder includes a L-shaped plate within the hem to receive a draw tape. The plate is pivotally mounted the tape within the hem. A wheel is rotatably and pivotally mounted for pulling the hem onto the plate. A single strap on a roll has a width equal to both tapes. The roll is driven and the strap passes over a knife to sever the strap from the tapes. A tension control roll is coupled to moving the strap and controls the strap feed to hold a constant tape tension. A folding board includes spaced edge channels in a V-shape for folding the flat web. An air layer is interposed between the web and the folding channels to provide a low friction movement.
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: November 21, 1989
    Assignee: Amplas, Inc.
    Inventor: Robert J. Wech
  • Patent number: 4875895
    Abstract: A buffing apparatus is provided for use in association with a case sealing arrangement, to buff lead and rear depending tape tails against a tape/carton combination. The buffing apparatus includes a single buffing member moved, by means of a motive mechanism, between paths and motion. The first path of motion is defined such that the buffing member is moved against a lead tape tail, and then is retracted so that a rear tape tail can pass thereover. The second path of motion is defined such that the buffing member is brought upwardly against the rear tape tail, to buff same into position, while returning the buffing member to the first extreme position. For preferred embodiments, the first and second paths of motion are identical, but opposite, to one another. In one embodiment, the paths of motion are defined by a cam track/follower arrangement. In a second embodiment, a link mechanism is described, which accomplishes a desired motion.
    Type: Grant
    Filed: March 16, 1988
    Date of Patent: October 24, 1989
    Assignee: Minnesota Mining and Manufcturing
    Inventors: James A. Donnay, Van E. Jensen, Jr., Bryon S. Kruzel
  • Patent number: 4874356
    Abstract: An improved method for making promotional pieces wherein a high speed web-press operation results in mass-production of attractive pieces which include three or more interconnected pop-up panels which assume a three-dimensional shape when the outer folder is opened. The preferred method utilizes a plurality of longitudinal slitting and folding steps, together with the application of glue lines in strategic locations, and culminates in the transverse cutting of the continuous moving web to separate each blank in series from the next. A continuous web is preferably longitudinally slit into at least three continuous ribbons which are then manipulated and associated with one another to create an endless series of interconnected pop-up assemblies atop a ribbon consisting of two side-by-side basepieces. In an alternative method, only two ribbons are employed, and pieces having a false backbone are created.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: October 17, 1989
    Assignee: One Up, Inc.
    Inventor: John K. Volkert
  • Patent number: 4872380
    Abstract: A workpiece positioner usable with a lathe having a headstock rotatable about a lathe axis has a base adjacent the lathe and defining an upright base axis offset from the lathe axis, a gripper support pivotal on the base about the base axis and defining a horizontal support axis, a positioner head pivotal on the support about the support axis, and a pair of grippers each including a respective pair of gripper jaws displaceable on the head transversely of the support axis.
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: October 10, 1989
    Assignee: Maschininfabrik Heid Aktiengesellschaft
    Inventors: Franz Holy, Walter List
  • Patent number: 4871347
    Abstract: Apparatus for forming a flexible tubing (S) from a single-ply or multi-ply web (B) as it is continuously advanced includes two size-defining metal plates (9, 10) which define the width of the flattened tubing and are substantially parallel to each other and are movably mounted in the machine frame (1, 2, 3) and have receiving end portions about which the web is deflected to raise edge portions of the web which are to be infolded to overlap each other. The plates are adjustable by a screw (34) or the like to control the distance between their receiving end portions. The plates are provided at their delivery end portions with straps (17) or the like for controlling the distance between the plates.
    Type: Grant
    Filed: November 18, 1987
    Date of Patent: October 3, 1989
    Assignee: Windmoller & Holscher
    Inventor: Friedheim Brinkmeier
  • Patent number: 4867736
    Abstract: An apparatus for folding agricultural storage bags (20) includes a frame (22) having an annular pad (70) mounted about the lateral periphery thereof. Pivotally mounted within and extending outwardly from the frame above the annular pad (70) are a plurality of upper arms (110). A plurality of lower arms (126) are similarly mounted below the annular pad (70) and are positioned between the upper arms (110). Mounted within the frame (22) above the upper arms (110) is a platform (26) for supporting a quantity of flexible tubular material. Mounted to the frame above the platform (26) is an advancing mechanism (50). The upper and lower arms (110 and 126) are actuated alternately to form the length of flexible tubular material into a plurality of folds each extending parallel to the annular pad (70).
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: September 19, 1989
    Assignee: Ag-Bag Corporation
    Inventors: David H. Rasmussen, Walter L. Jay
  • Patent number: 4867735
    Abstract: A method and apparatus are provided for continuous fabrication of bags from a longitudinally advanced multi-layer thermoplastic film web fed tangentially onto a rotating drum for carrying out transverse web seam welding and severing, the principal novel feature being provision of preliminary heating carried out across at least part of the width of web at which the final seam and sever is to take place. The preliminary heating step is advantageous where the thickness of film layers to be sealed and severed is not uniform across the width of the web or in which the uniform thickness of the film layers is such that seaming and severing in a single step requires an undesirably long time for continuous high speed production. The method can be adapted for production of bags of different widths.
    Type: Grant
    Filed: October 1, 1987
    Date of Patent: September 19, 1989
    Assignee: First Brands Corporation
    Inventor: Donald E. Wogelius
  • Patent number: 4865578
    Abstract: A glue head mounting bracket for glue applying folding machines is disclosed which holds a glue head for dispensing glue onto a sheet of paper that is to be folded and secured at the glue lines, which bracket permits the glue head to be placed at a predetermined location and the glue head swiveled out of the way for non-glue application. The bracket is of two piece fixed and demountable construction with the glue head carried in the demountable bracket piece, so that the glue head can be moved for cleaning and repair or replacement, and the glue head placed back into service without changing the location of the glue line.
    Type: Grant
    Filed: May 16, 1988
    Date of Patent: September 12, 1989
    Inventor: Richard J. Moll
  • Patent number: 4865506
    Abstract: An apparatus for reforming an end shell includes a stationary tooling assembly having a reform punch for engaging an interior surface of the central wall portion of the end shell. A reciprocating tooling assembly includes spring-loaded pressure pad complimentary to the reform punch for engagin the exterior surface of the central wall portion. A reform ring, mounted circumferentially about the pressure pad, includes an annular nose for fully engaging and supporting the exterior surface of the frustoconical wall portion of the end shell. At the bottom of the reforming stroke, the central wall portion is simultaneously supported by the reform punch and the pressure pad.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: September 12, 1989
    Assignee: Stolle Corporation
    Inventor: Elton G. Kaminski
  • Patent number: 4865104
    Abstract: A tire changer has the feature of therefor restraining vehicle tire/rim assemblies which are caused to explode due to tire overinflation or tire bead failure for any reason. A tire and rim assembly hold down bar is pivotally attached to one side of the body of the tire changer and is secured in position immediately overlying the tire/rim assembly on the tire changer by engaging a tongue in a buckle assembly mounted on the bar. The tongue is attached to the end of a web belt which is secured to the other side of the body of the tire changer. Engagement of the tongue in the buckle also actuates an enabling valve in a conduit for transmitting tire inflation air from a pressure source to the tire. Inflation air may then be provided at will to the tire by actuation of an inflation valve located in the air conduit between the pressure source and the tire.
    Type: Grant
    Filed: January 20, 1988
    Date of Patent: September 12, 1989
    Assignee: FMC Corporation
    Inventor: Bryce L. Mannen
  • Patent number: 4865579
    Abstract: A sheet folding apparatus comprises a substantially planar surface for receiving and supporting a substantially rectangular extended sheet. The apparatus includes a first folder for folding the substantially rectangular extended sheet along a first diagonal axis thereof to form a once folded sheet defining a long base, a second folder for folding the two halves of the base of the once folded sheet towards each other and into parallel disposition with an axis transverse to the axis of the base to form a twice folded sheet, and a third folder for folding the two halves of the twice folded sheet along a second diagonal axis thereof to form a thrice folded sheet while simultaneously removing the sheet from the substantially planar surface.
    Type: Grant
    Filed: May 19, 1988
    Date of Patent: September 12, 1989
    Inventors: James Kirby, George Enos
  • Patent number: 4863421
    Abstract: A folding apparatus in which an intermediate span of a signature at the folding station is buckled by a pair of oppositely driven signature feeding surfaces into the nip of a pair of converging signature folding and feeding surfaces which fold the signature and feed it from the folding station.
    Type: Grant
    Filed: May 26, 1987
    Date of Patent: September 5, 1989
    Inventor: Michael H. Loebach
  • Patent number: 4862777
    Abstract: Apparatus is described for machining the exterior peripheral surface of piston rings for internal combustion engines, particularly piston rings having a transverse shape other than circular, for example, oval or elliptical. A jig arrangement usable with the apparatus is adapted to temporarily deform the workpieces in order to produce exterior surfaces having a conical taper.
    Type: Grant
    Filed: March 5, 1987
    Date of Patent: September 5, 1989
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shigeo Sakurai, Masayuki Onimaru
  • Patent number: RE33061
    Abstract: A press for converting ends for cans and the like is provided with a conveyor extending sideways through the press to carry shells for processing into can ends along an end converting path. Upper and lower conversion tooling is located along the end converting path at the top and bottom of the conveyor, defining a plurality of stations on opposite sides of the center of the tooling for working progressively on shells moved by the conveyor along the end converting path. First and second tab tooling, auxiliary to the main tooling means, is located on opposite sides of the conveyor extending transversely thereof and defining a tab forming path which bridges the end converting path. Opening tabs are formed from a strip of metal stock fed through the tab tooling and the strip with completed tabs is guided in a loop from the tab tooling back to a staking and attachment station on the end converting path for removal from the strip and attachment to the shells.
    Type: Grant
    Filed: May 27, 1987
    Date of Patent: September 19, 1989
    Assignee: Dayton Reliable Tool & Mfg. Co.
    Inventor: Omar L. Brown