Shaping Surface Having Serrated Or Cutting Edge Patents (Class 425/281)
  • Patent number: 10829997
    Abstract: An earth-boring tool for removing subterranean formation material in a borehole comprises a tool body having a central axis defining an axial center thereof and a leg extending in an axial direction from the tool body. A bearing assembly is removably coupled to the leg and includes a bearing shaft and a base member. The base member encircles a portion of the bearing shaft and abuts against a surface of the leg. A roller cone is rotatably coupled to the bearing assembly and has a rotational axis about which the roller cone rotates on the bearing assembly when the roller cone removes subterranean formation material in the borehole. A method of assembling a rotatable cutting structure assembly including the bearing assembly includes coupling the bearing shaft to the leg by disposing a mechanical fastener through an aperture formed through the leg and into a cavity of the bearing shaft.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: November 10, 2020
    Assignee: Baker Hughes, a GE company, LLC
    Inventor: John Morin
  • Patent number: 10105013
    Abstract: This invention relates to a foodstuff scoop, particularly an ice cream scoop comprising a pushing portion that can be easily detached from and mounted onto a handle of the scoop. The pushing portion comprises a pushing piece for pushing scooped foodstuff out of a scoop portion of the scoop, and a retractable member for retracting the pushing piece from an active position to an inactive position after the scooped foodstuff has been pushed out of the scoop portion.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: October 23, 2018
    Assignee: KING'S FLAIR DEVELOPMENT LTD.
    Inventor: Siu Wah Wong
  • Patent number: 9271523
    Abstract: A rotor assembly for extruding randomly shaped food items includes a one-piece finger member. The one-piece finger member reduces the downtime of the extruding machine containing the rotor assembly by reducing the number of parts in the rotor assembly and reducing the adjustment necessary after finger replacement. The proprietary threaded interface between the finger member and the improved extruder machine allows for quick swap out during extruder maintenance.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: March 1, 2016
    Inventors: Dennis Williams, David K. Williams
  • Patent number: 9173527
    Abstract: The present disclosure provides an ergonomically designed solid single piece ice cream scoop emerging from a die-cast or forged tool made out of a metal that is finished and polished to eliminate the rough edges from the die casting or forged process with superior mechanical leverage to scoop out the hardest ice cream from a container.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: November 3, 2015
    Assignee: Belle-V, LLC
    Inventors: Karl T. Ulrich, Jeffrey Allen Salazar, Alan J. Cook, Jeff Smith, Kevin John Augustyniak, Gerard Furbershaw, Kenneth D. Wood
  • Patent number: 9033693
    Abstract: A unitary elastic mold and cutter combination configured to mold and cut moldable material is disclosed herein. The mold and cutter combination comprises an elastic mold cavity having an elastic bottom wall with an embossed inner surface and an elastic sidewall extending from and unitary with a perimeter of the bottom wall. An elastic cutting blade extends from and is unitary with the sidewall of the mold cavity and is configured to cut moldable material and maintain a substantially consistent perimeter upon cutting. The cutting blade comprises a cutting edge disposed between an inner cutting blade surface and an outer cutting blade surface. The mold and cutter combination may have an elasticity sufficient to release molded material therefrom by hand stretching, wherein the cutting edge, inner cutting blade surface, and the inner surface of the sidewall of the mold cavity are stretched by an amount sufficient to release the molded material.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: May 19, 2015
    Inventor: Dominic Palazzolo
  • Publication number: 20140234464
    Abstract: A hand held multi-purpose utensil of a constant diameter cylindrical handle or grip and a concave and convex shaped blade which has a curved scalloped shaped working edge. The handle or grip begins at the base of the blade and continues away from the blade along its centerline. The concave surface of the blade has regularly spaced rows of identical divots. At the base of the blade, the shape of the blade becomes convex. A portion of the handle or grip has as cross hatched pattern etched or grooved. The blade and handle is continuous with no connections or parts and comprises a volume of metal, plastic, ceramic, composite or other suitable material.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 21, 2014
    Inventors: James R. Renfro, Ephraim R. Renfro, Lilian L. Renfro
  • Patent number: 8790107
    Abstract: An ice cream scoop includes a handle, a scooper coupled to an end of the handle, a scraper installed in the scooper, a link rod extended from an end of the scraper into the end of the handle, and a transmission device installed on the link rod. The ice cream scoop further includes an operating device with an end pivotally coupled to the handle, such that the operating device can be swayed between a first position and a second position with respect to the handle. The operating device further includes a driving portion coupled to the transmission device. If the operating device is swayed between the first and second positions, the link rod will be rotated, and the scraper will be moved along an internal wall of the scooper.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: July 29, 2014
    Assignee: Intercontinental Marketing Services Far East Co., Ltd.
    Inventors: Tung-Hsien Lee, Sheng-Chi Lin
  • Patent number: 8684717
    Abstract: Provided is a floor construction apparatus that includes a guide unit that is disposed on surface of a floor to be constructed, and a flattening unit that is guided by the guide unit, to then be transferred to flatten the surface of the floor to be constructed, and to thereby reduce a construction time and expense for flattening of the construction surface of the floor.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: April 1, 2014
    Inventors: Ju Tae Kim, Kyong Hwa Lee
  • Patent number: 8641401
    Abstract: A combination scoop and mold press includes two generally cup-shaped half-mold members, which engage one another at mold member edges in mirror-image alignment to form a generally enclosed mold. The half-mold members of the scoop and mold press are carried on opposite ends of a unitary piece of injection molded polymeric material, which has a live hinge joint equidistantly spaced between the mold members. Either of the half-mold members may be utilized to scoop out an appropriate mass of bait dough having at least the volume of the closed mold. At least one of the half-mold members is equipped with a notch or slit through which the shank of a fish hook, or the line which is tied to the fish hook, may pass. Finger pressure is used to bring the mold half-members together, compressing the bait dough around the hook.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: February 4, 2014
    Inventor: Randall L. Leininger
  • Patent number: 8622730
    Abstract: An apparatus and method is provided for forming and cutting a dough sheet into a plurality of generally spherically shaped, boule-type dough products in a continuous process. The apparatus includes a rotatable drum and a plurality of cutter molds disposed on the rotatable drum for engaging, shaping and severing dough from the sheet as the dough sheet moves along the dough travel path. Each of the cutter molds including a peripheral edge portion, a base portion and a curved, annular side wall defining a concave, generally bowl-shaped internal cavity, with the peripheral edge portion establishing a cutting edge for the cutter mold.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: January 7, 2014
    Assignee: General Mills, Inc.
    Inventors: Geoff Suski, Frank Konkle, Ed Francis, Peter A. Huberg
  • Patent number: 8622729
    Abstract: An apparatus is provided for forming, cutting and stamping a dough sheet into a plurality of uniformly stamped, imprinted dough pieces. The apparatus engages a leading portion of a dough sheet as it travels along a conveyor. The apparatus includes a drum rotatably disposed relative to the conveyor, a plurality of cutter molds disposed on the rotatable drum and a plurality of pattern imprinters formed within internal cavities defined by the plurality of cutter molds. Each of the cutter molds simultaneously cuts a dough piece received in the internal cavity and imprints on the dough piece to form a rounded edge roll. The pattern imprinter preferably has a star configuration for stamping the dough to form Kaiser-type rolls.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: January 7, 2014
    Assignee: General Mills, Inc.
    Inventors: Geoff Suski, Frank Konkle, Peter A. Huberg, Ed Francis
  • Publication number: 20130316037
    Abstract: A rotor assembly for extruding randomly shaped food items includes a one-piece finger member. The one-piece finger member reduces the downtime of the extruding machine containing the rotor assembly by reducing the number of parts in the rotor assembly and reducing the adjustment necessary after finger replacement. The proprietary threaded interface between the finger member and the improved extruder machine allows for quick swap out during extruder maintenance.
    Type: Application
    Filed: May 23, 2012
    Publication date: November 28, 2013
    Inventors: Dennis Williams, David K. Williams
  • Patent number: 8535039
    Abstract: A dough cutting apparatus is suitable for cutting a sheet of dough. The dough cutting apparatus includes a structure defining a blunt dough engaging portion. The present invention can be embodied in a number of different ways, including a wheel cutter, a rotary drum cutter, a reciprocating head cutter, or another cutter.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: September 17, 2013
    Assignee: General Mills, Inc.
    Inventors: James R. Evans, James W. Finkowski, Gene A. Russel
  • Patent number: 8057212
    Abstract: A forming machine that quickly compacts hollow materials and automatically recycles the materials includes molds, each of which is provided with a feeder having a hollow hole. An opening of the feeder is exactly located at a hollow position of a food product to be formed, and an upper end of the hollow feeder is connected with recycling tubes coming from a feed tank. When a cope and a nowel compact and form the materials into the hollow food products, the feeders will automatically push upward remainders at hollow places of the food products that are stacked constantly, enabling the remainders to enter into the feed tank along the recycling tubes, so as to achieve effects of quickly compacting and processing the materials and automatically recycling the remainders.
    Type: Grant
    Filed: August 10, 2008
    Date of Patent: November 15, 2011
    Inventor: Wen-Di Chiang
  • Patent number: 7503252
    Abstract: An automatic ice cream scooper. A cylinder of ice cream is placed vertically within a refrigerated container on a slicer having a disc shape. The slicer includes an angled slicing blade for removing ice cream. The slicer is rotated by a motor to remove the ice cream. The slicer has an upstanding edge with the screw thread formed thereon for removing the sidewall of the ice cream container.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: March 17, 2009
    Inventor: Debra S. Richman
  • Patent number: 7427194
    Abstract: An ice cream scooping implement includes an elongated handle that has an axial bore extending from a handle distal end and terminates approximately midway therealong. The handle has an end cap removably mated to a proximal end thereof. A scooping section is telescopically and removably insertable into the axial bore and includes a mechanism for locking the scooping section within the handle. A heating element is concentrically seated about a proximal portion of the scooping section, is in direct contact with the scooping section, is isolated from the handle, and is formed from thermal-conductive and electrical-conductive material, including tungsten. The heating element includes a pair of conductive terminals that extend proximally along a longitudinal length thereof. A mechanism is included for supplying power to the heating element. The terminals are directly engaged with the power supplying mechanism.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: September 23, 2008
    Inventor: Renae A. Lopez
  • Patent number: 7393200
    Abstract: There is provided an electromotion ice-cream disher, in which sawteeth are formed at a lower portion of a rotating cap disposed inside a holder and a receiving groove for receiving ice cream is formed, such that that ice cream can be easily taken from a container and placed on a dish or plate easily by rotation and upward/downward motion of the receiving groove. In the electromotion ice-cream disher, a hemispherical rotational cap is provided inside the holder and is integrally formed with a connecting pipe passing through the holder and has sawteeth at a lower portion, such that the rotational cap is rotatable within the holder by a stop washer. A spline shaft is connected to a drive shaft of a drive motor and inserted/protruded to/from the connecting pipe and transfers a rotational force of the drive motor to the rotational cap. A solenoid has a rod connected to the drive motor.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: July 1, 2008
    Inventor: Sunnie K. Jeon
  • Patent number: 7387507
    Abstract: A scoop for ice cream and other frozen products having a part-spherical body with an open side defined by an irregular edge extending from a point to be pushed into the product, and from the point along a generally helically curved leading edge to be pushed into the product and turned to form a ball of product with an auger-like action. An elongated handle is secured to the body on the side opposite the point and has a flat side band that spirals from the body to the free end to facilitate gripping and turning.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: June 17, 2008
    Assignee: Bradshaw International, Inc.
    Inventor: Troy Schuler
  • Patent number: 7048530
    Abstract: A device for applying a thin layer of a powder on a support means (14) includes a device (12) for storing the powder, a screed (30) that includes a shoe (36) with a working surface, as well as a device (28) for guiding in translation in a direction of movement F. The shoe (36) is rotatable and includes a device (32, 34) for inclining the to take at least two positions, the first in which the working surface is parallel to the support (14) for the layers to take up a predetermined volume of powder and a second in which this working surface is inclined at an angle ? relative to the support.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: May 23, 2006
    Assignee: Ecole Nationale Superieure de Ceramique Industrielle (E.N.S.C.I.)
    Inventors: Jean-Marie Gaillard, Arnaud Hory
  • Patent number: 6863520
    Abstract: The auger scoop is a handheld, cordless appliance for scooping frozen substances that has three components: an auger unit, a power unit, and a wall-mountable charger unit. The auger unit consists of a cylindrical tube having a flat, angled blade slightly recessed within the lower end and an angled butt plate at the upper end. The auger unit features a shaft extending from the upper end which is inserted into the power unit. The power unit consists of a rechargeable battery pack, a housing, and a motor and drive assembly that are activated by a switch on the external housing. When activated, the power unit rotates the tube, thereby rotating the blade and allowing the auger unit to bore into the frozen substance. The charger unit features a plug with which it is connected to a wall socket, an AC to DC converter, and a receptacle for the power unit.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: March 8, 2005
    Inventor: Craig A. Stiles
  • Patent number: 6860016
    Abstract: A single-handedly operated citrus fruit segmenter having first and second arms such that squeezing the arms into a closed position causes a curved movable scoop to extend into a citrus fruit proximate to a triangular blade and form a segment-shaped compartment. The actuation of the curved movable scoop occurs by a user squeezing the first arm toward the second arm. A pin on the first arm is operatively connected to an elongated slot of a cam mechanism such that the rotation of the first arm about its pivot location causes the cam mechanism to rotate about its own pivot location. Therefore, the cam mechanism, being also connected to the curved movable scoop, forces the curved movable scoop into the citrus fruit.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: March 1, 2005
    Assignee: Chef'N Corporation
    Inventors: David A. Holcomb, Joshua R. Stewart
  • Publication number: 20040089982
    Abstract: An ice cream scoop for removing frozen to semi-frozen desserts from a container comprising a scoop portion and a handle portion. The scoop portion comprises a rim portion and a deformable portion, the deformable portion having a resilient, flexible and/or elastomeric material that allows for easy removal of frozen to semi-frozen desserts from the scoop by physically pressing on the exterior of the deformable portion. A method of use of this scoop includes scooping the dessert, inverting the scoop portion over the area desired and depressing the deformable portion to release the dessert from the scoop.
    Type: Application
    Filed: November 8, 2002
    Publication date: May 13, 2004
    Inventor: Michael Witthoft
  • Patent number: 6243952
    Abstract: A one hand-operated citrus fruit segmenter having a handle with a grip on one end and a triangular blade with diverging segmenting surfaces on the other end, a scoop moveable toward the segmenting surfaces to form a closed compartment to entrap a fruit segment for removal from the fruit, an operating mechanism having a pair of finger pads connected to a drive rack that drives a driven rack via a pinion gear, the driven rack connected to the scoop to pivot the scoop toward the fixed blade, the heel of the user's hand pressing against the grip to hold the handle while the fingers of the same hand pull on the finger pads.
    Type: Grant
    Filed: September 10, 1998
    Date of Patent: June 12, 2001
    Assignee: Chef'n Corporation
    Inventors: David A. Holcomb, Martin Gaard
  • Patent number: 6166140
    Abstract: High viscosity elastomers are often difficult to utilize in rubber compositions without first creating a pre-blend of the high viscosity elastomer and a rubber processing oil to reduce their overall viscosity. This invention relates to utilization of a specialized pre-blend of high viscosity and low viscosity elastomers for use in rubber compositions and to the resulting rubber composition. The use of such resulting rubber composition may be for component(s) of tires, particularly including tire treads. The specialized pre-blend of high and low viscosity elastomers is required to be created by blending individual latices or, alternatively, by blending individual polymerizates of elastomers with diverse viscosities.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: December 26, 2000
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul Harry Sandstrom, Edward John Blok, David John Zanzig, Howard Allen Colvin, Michael Leslie Senyek
  • Patent number: 6139301
    Abstract: The invention relates to a device for adjustment of the clamping plate height in a curing press steam chamber. The height adjustability allows the clamping plate to be attached to different size tire molds to produce tires of different sizes in a single steam chamber. The device for adjustment of the height of the clamping plate in a steam chamber includes a plurality of hydraulic cylinders between the upper and/or lower part of the steam chamber and the clamping plate within the steam chamber.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: October 31, 2000
    Assignee: SKODA TS A.S.
    Inventors: Pavel Elleder, Jiri Forejt
  • Patent number: 6126426
    Abstract: A vulcanization mold for manufacturing pneumatic vehicle tires has mold segments for forming the tread strip of a pneumatic vehicle tire. The mold segments have a radially inwardly facing honeycomb lamella pattern in a radial direction of the vulcanization mold. The honeycomb lamella pattern has first zigzag lamella members mounted in the mold segments and second zigzag lamella members mounted in the mold segments. The first zigzag lamella members extend in a first main direction and the second zigzag members extend in a second main direction. The first and second main directions cross one another. The first zigzag lamella members have first lamella elements and the second zigzag lamella members have second lamella elements, wherein the first and second lamella elements form honeycomb walls of the honeycomb pattern.
    Type: Grant
    Filed: July 22, 1999
    Date of Patent: October 3, 2000
    Assignee: Continental Aktiengesellschaft
    Inventors: Reinhard Mundl, Helmut Rodewald
  • Patent number: 6116881
    Abstract: A device for lifting an upper part of a curing press steam chamber includes rollers which move along guideways. The lifting device allows an upper part of the steam chamber to be lifted off a lower part of the steam chamber and moved laterally to allow easy access to both the upper part of the steam chamber and the lower part of the steam chamber. A linear motor moves the rollers along the guideways to lift the upper part of the steam chamber off the lower part of the steam chamber. The linear motor may be a translating screw or a hydraulic cylinder motor. A longitudinal axis of the linear motor forms an angle with the guideways which is smaller than a right angle at all positions.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: September 12, 2000
    Assignee: SKODA TS a.s.
    Inventors: Jiri Forejt, Stanislav Rom
  • Patent number: 6053228
    Abstract: A high impact logo structure for a tire sidewall includes a pattern formed in the body of the sidewall. The structure of the pattern creates the appearance that the pattern is recessed into the tire sidewall without actually extending inwardly past the outer surface of the sidewall. The pattern has an interior wall that projects outwardly from the outer surface of the body of the sidewall above the reference plane of the outer surface of the sidewall. The interior wall defines at least part of the pattern. An outline wall projects outwardly from the outer surface of the body of the sidewall above the reference plane of the outer surface of the sidewall. The outline wall extends about at least part of the perimeter of the interior wall of the pattern. The outline wall is spaced from the interior wall by a groove that increases the visual impact of the pattern. The lower surface of the groove is substantially coplanar with the outer surface of the sidewall.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: April 25, 2000
    Assignee: Bridgestone/Firestone, Inc.
    Inventor: Christopher T. Baker
  • Patent number: 6026875
    Abstract: Vehicle tire and a metal sheet mold plate for forming the vehicle tire having at least one axial end section includes a tread that includes sipes running substantially axially in at least one of the axial end sections when viewed from the top (i.e., perpendicular to the tread surface). The sipes are corrugated to form corrugated ridges and valleys that are substantially straight lines diagonally inclined in an oblique plane parallel to the substantially axially running sipes. The substantially axially running sipes may include a first set of sipes and a second set of sipes. The corrugated ridges and valleys of the first set of sipes are oriented, with regard to a radially outward direction, to extend axially inwardly toward (i.e., toward a axial center of the tire). Conversely, the corrugated ridges and valleys of the second set of sipes are oriented, with regard to the radially outward direction, to extend axially outwardly (i.e., away from the axial center of the tire).
    Type: Grant
    Filed: December 8, 1997
    Date of Patent: February 22, 2000
    Assignee: Continental Aktiengesellschaft
    Inventors: Franz Diensthuber, Christian Haigerer, Reinhard Mundl, Helmut Rodewald
  • Patent number: 5950700
    Abstract: A pneumatic tire comprises sipes in each land portion defined by wide-width grooves in a tread portion, in which a sipe corresponding to at least a part of these sipes comprises a pair of main portions slightly shifting to each other in the axial direction and a link portion connecting opposed end portions of these main portions to each other, and the pair of the main portions are inclined in opposite directions with respect to a radial direction so as to make a mutual distance L between the main portions large.
    Type: Grant
    Filed: September 10, 1997
    Date of Patent: September 14, 1999
    Assignee: Bridgestone Corporation
    Inventor: Toru Fukuoka
  • Patent number: 5939101
    Abstract: A vent for a mold having a mold cavity comprising a vent main body, a valve closure member having an upper end face for positioning at the surface of the mold cavity, the valve closure member being moveable with respect to the vent main body for opening and closing the vent, a spring opening mechanism formed integrally with the vent main body for opening the vent, and a valve seat between the valve closure member and the main body wherein the vent is closed by material in the mold cavity contacting the upper end face of the valve closure member.
    Type: Grant
    Filed: April 21, 1998
    Date of Patent: August 17, 1999
    Assignee: Dunlop Tyres Ltd.
    Inventor: Thomas Benjamin Green
  • Patent number: 5932153
    Abstract: A tire tread that is applicable to retread a worn tire carcass. The tire tread includes a cured tread portion having a first shoulder and a second shoulder. A first uncured wing portion extends from the first shoulder and a second uncured wing portion extends from the second shoulder. Further, an end section at each end of the tire tread portion is uncured. When the tire tread is wrapped around the tire carcass to be formed to the tire carcass and form a tire retread, the first and second wing portions extend down the side walls of the tire carcass and the uncured end sections of the tire tread contact each other. The tire carcass is placed within an autoclave, and the autoclave is heated under pressure such that the tire tread is cross-linked to the tire carcass. During the autoclaving step, the uncured wing portions are cured and cross-linked to the side walls of the tire carcass, and the uncured end portions are cured and cross-linked to each other.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: August 3, 1999
    Assignee: The Standard Products Company
    Inventor: James F. Keys
  • Patent number: 5928675
    Abstract: A plurality of green tire storage tables and a green tire loading/unloading apparatus for transferring a green tire on the green tire carrier onto the green tire storage table are provided between a green tire loader at the mold opening/closing station and a plurality of green tire carriers, at least one green tire storage table of the green tire storage tables is a movable green tire storage table, the movable green tire storage table being capable of reciprocating between a first position where a green tire is received by using the green tire loading/unloading apparatus and a second position where a green tire is delivered to the green tire loader, the green tire loading/unloading apparatus can travel between the plural green tire carriers and the plural green tire storage tables, the green tire held horizontally on the movable green tire storage table or by the green tire loading/unloading apparatus is turned so that the positioning control of green tire can be carried out, and the green tire type mark att
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: July 27, 1999
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventor: Nobuhiko Irie
  • Patent number: 5922237
    Abstract: A vent for a mold comprising a valve closure member and integrally formed spring opening mechanism for opening the valve closure member such that when mounted in an air release vent the valve closure member may open or close said vent.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: July 13, 1999
    Assignee: Dunlop Tyres Ltd.
    Inventor: Thomas Benjamin Green
  • Patent number: 5906835
    Abstract: A method and apparatus for producing both wing-type and wingless tire treads from a single mold. The mold includes a main portion, a pair of first inserts which are selectively attachable to the main portion. The pair of first inserts is capable of molding wingless treads. A pair of second inserts can be selectively secured to the main portion in place of the first pair of inserts to mold wing-type treads. The method for converting a wingless tire tread mold to a wing-type tire tread mold includes the steps of removing the pair of first inserts from the main portion of the mold and securing the pair of second inserts to the main portion of the mold with the securing apparatus.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: May 25, 1999
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Spiros Apostolou Triantafyllis
  • Patent number: 5866171
    Abstract: A mold for tire vulcanization comprises a plurality of segments forming respectively a part of a circular interior complementary to land portions and groove portions of the tread portion of a tire product and being separable from each other in the tire circumferential direction, and each of the segments comprising a plurality of pieces forming said circular interior part and a block supporting the pieces, wherein each of the pieces comprises a combination of a matrix metal and a core made of a different kind of material which is preferably fitted to a through hole of the matrix metal and has a lower coefficient of thermal expansion than that of the matrix metal. In a method of manufacturing the mold, upon casting the matrix metal, the matrix metal is cast around the core with a higher fusion point than that of the matrix metal.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: February 2, 1999
    Assignee: Bridgestone Corporation
    Inventor: Takehiro Kata
  • Patent number: 5851557
    Abstract: An improved mold (1) for the molding and vulcanizing of annular treads inded, in particular, for the recapping of tires, which includes at least one rigid core (3) defining the inner surface of the tread and a collar (2) divided into sectors (21) which are movable radially between an open position and a closed position of the collar (2) for the molding of the outside of the tread, characterized by the fact that the core (3) bears movable annular elements (5) for the tight connection of the core (3) to the sectors (21) whatever the position of the latter between the closed position of the collar (2) and a slightly apart position of the sectors (21), and that the sectors (21), the core (3), and the annular element (5) define the molding space of the tread.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: December 22, 1998
    Assignee: Compagnie Generale des Establissements Michelin - Michelin & Cie
    Inventors: Guy Pouille, Bernard Ravel
  • Patent number: 5820886
    Abstract: A tire vulcanizing mold assembly includes an upper flange disposed on an outer peripheral portion of an upper mold of a tire vulcanizing mold or an upper flange disposed in the outer peripheral portion of a plate into which the upper mold is assembled, a lower flange disposed in an outer peripheral portion of a plate into which a lower mold is assembled so as to go up and down, and a lock ring which is rotatably assembled into one of the respective flanges and detachably engaged to the other flange, wherein one end portion of a pressurizing unit is detachably engaged to the plate, an output shaft is engaged onto the other end portion of the pressurizing unit so as to abut against the lower mold through the plate portion, and when the tire vulcanizing mold is closed so that the respective flange portions are coupled to each other by the lock ring, a mold opening force due to the inner pressure of the tire vulcanizing mold is prevented.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: October 13, 1998
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventor: Nobuhiko Irie
  • Patent number: 5820885
    Abstract: A tire vulcanizing system includes a vulcanizing station in which a plurality of sets of tire molds for vulcanization are arranged; a mold opening/closing station having a mold opening/closing device for opening/closing the tire mold, a loader for inserting an unvulcanized tire into the tire mold, and an unloader for removing a vulcanized tire from the tire mold; and a transferring device for transferring a tire mold between the vulcanizing station and the mold opening/closing station.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: October 13, 1998
    Assignee: Mitsubishi, Jukogyo Kabushiki Kaisha
    Inventor: Nobuhiko Irie
  • Patent number: 5800642
    Abstract: A pneumatic tire, a tire making method and a tire vulcanizing mold are disclosed. The tire has a pair of rounded or tapered shoulder portions each of which is provided with a circumferentially extending narrow groove for improving the wandering performance. The mold is provided with a tread molding face and shoulder molding faces. Each of the shoulder molding faces is provided with a protrusion for forming the above-mentioned narrow groove. The protrusion is provided with slits for forming thin partition walls in the narrow groove. The tread molding face is provided with vent holes. And vent grooves each of which extends from one of the slits in the shoulder molding face into the tread molding face is provided. As a result, no spue is formed in the tire shoulder portions and the tire appearance is improved. And the productivity can be improved.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: September 1, 1998
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Yukihide Ohya
  • Patent number: 5769975
    Abstract: A tire tread that is applicable to retread a worn tire carcass. The tire tread includes a cured tread portion having a first shoulder and a second shoulder. A first uncured wing portion extends from the first shoulder and a second uncured wing portion extends from the second shoulder. Further, an end section at each end of the tire tread portion is uncured. When the tire tread is wrapped around the tire carcass to be formed to the tire carcass and form a tire retread, the first and second wing portions extend down the side walls of the tire carcass and the uncured end sections of the tire tread contact each other. The tire carcass is placed within an autoclave, and the autoclave is heated under pressure such that the tire tread is cross-linked to the tire carcass. During the autoclaving step, the uncured wing portions are cured and cross-linked to the side walls of the tire carcass, and the uncured end portions are cured and cross-linked to each other.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: June 23, 1998
    Assignee: The Standard Products Company
    Inventor: James F. Keys
  • Patent number: 5744169
    Abstract: A tire press in which a pair of upper and lower molds are opened/closed and squeezed by an operation of a crank mechanism is disclosed. Especially, the tire press is improved in the aspects of its machine accuracy, strength, size, and maintenance. The tire press has: a pair of upper and lower molds; a base for supporting the lower mold; side frames on both sides of the base; a side slot vertically extended in each of the side frames; a top slide which slides along the side slots and holds the upper mold; and a crank mechanism for moving the top slide only in the vertical direction. The crank mechanism includes: a crank gear; a lever attached to the crank gear and whose front and is positioned on the outer side of the outer diameter of the crank gear; and a link connecting a crank fulcrum at the tip of the lever and the top slide sliding along the side slots. The side slot vertically extends parallel to a vertical central line crossing the center of rotation of the crank gear and the crank fulcrum.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: April 28, 1998
    Assignees: Kabushiki Kaisha Kobe Seiko Sho, Kobelco Stewart Bolling, Inc.
    Inventors: Yasuhiko Fujieda, Hiroyuki Takebayashi, Masaki Naoi
  • Patent number: 5733399
    Abstract: An apparatus and method for manufacturing a synchronous drive belt or timing belt is disclosed. The method allows a belt with axially interlocked teeth to be manufactured. The method utilizes transfer molding, as opposed to compression molding, and involves an inflatable diaphragm which pushes rubber radially outwardly from a mandrel into a mold having teeth on an inner surface. The method includes the provision of a barrier layer which can be advantageously built into the belt to improve the transfer molding process.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: March 31, 1998
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Douglas Bruce Wood
  • Patent number: 5723154
    Abstract: A tire transporter which shuttles between a vulcanizing station 1 in which plural pairs of tire molds are arranged to perform vulcanization and a mold opening/closing station 2 in which the tire mold is opened and the vulcanized tire is taken out from the tire mold. Subsequently, an unvulcanized tire to be vulcanized is inserted into the tire mold and shaped before the tire mold is closed. The tire transporter includes a first railway 4 disposed along the vulcanizing station 1 and the mold opening/closing station 2. A truck is provided and moves along the first railway between a first position P1, set in the mold opening/closing station 2, and second positions P2, set at a plurality of portions in front of the vulcanizing station 1. A second railway 12 is disposed on the truck along a direction orthogonal to the first railway 4.
    Type: Grant
    Filed: November 15, 1995
    Date of Patent: March 3, 1998
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Nobuhiko Irie, Teruaki Muta
  • Patent number: 5693160
    Abstract: A pneumatic tire the aspect ratio of which is not more than 50% has, for reinforcing a tread portion, a belt comprising at least two rubber coated cord layers having cords arranged obliquely at angles with respect to an equatorial plane of the tire of 26.degree. or more, and a belt reinforcing layer arranged outside the belt and comprising at least one organic fiber cord layer having cords arranged substantially parallel with respect to the equatorial plane of the tire. The tire is molded in a mold with a cross-sectional profile of a molded surface facing the tread portion having a radius smaller than that of a nominal tire cross-sectional profile by 1% or more of a section width of the tire and forming a convex curve to a cavity.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: December 2, 1997
    Assignee: Bridgestone Corporation
    Inventors: Misao Kawabata, Kazuo Hayashi
  • Patent number: 5681594
    Abstract: A tire vulcanizer is provided with a vulcanizing station where tire vulcanizing molds are arranged to perform vulcanization. The tire vulcanizer also includes a mold opening/closing station where, after the tire vulcanizing mold is opened, a vulcanized tire is taken out from the inside of the tire vulcanizing mold, and then an unvulcanized tire to be succeedingly vulcanized is inserted into the inside of the tire vulcanizing mold so as to be shaped before the tire vulcanizing mold is closed. Also, a mold carrier truck is provided which is movable between the vulcanizing mold and the mold opening/closing station. An unvulcanized tire storage section is disposed above each of the tire vulcanizing molds in the vulcanizing station.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: October 28, 1997
    Assignee: Mitsubishi Jukogyo Kabushiki Kaisha
    Inventor: Nobuhiko Irie
  • Patent number: 5631028
    Abstract: A conveyor system that performs a conveyance by using pallets for loading green tires and device for conveying these pallets, installs a storage area for storing pallets as they are on the way to convey, and uses robots for transferring the green tires from a pallet to a tire vulcanizer. Pallets being of such a type as to be able to load two or more green tires for planar placement and a conveyor devise is desired to be able to get under these pallets for lifting up. Furthermore, a visual sensor provided on a robot reads at least one of a mark concerning the specification of a green tire, a mark for its positioning on a pallet, and a mark for its positioning on a tire vulcanizer, identifies a green tire to be conveyed, and automatically performs a positioning in transferring the green tire from the relevant pallet and a positioning in transferring the green tire to a tire vulcanizer in the conveyor system.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: May 20, 1997
    Assignees: Kabushiki Kaisha Kobe Seiko Sho, Shinko Electric Co., Ltd.
    Inventors: Takumi Mizokawa, Koji Ota, Kashiro Ureshino, Katsumi Ichikawa, Koichi Nomura, Tadashi Tomita
  • Patent number: 5614225
    Abstract: A toroidal semifinished product (5) made of raw elastomeric material is semivulcanized in a semivulcanization chamber (4) defined between two half-molds (2, 3) disposed close to each other. A pressure, preferably equal to the pressure exerted by the gases generated in the semifinished product (5), is created in the mold (1a). The half-molds (2, 3) are moved apart from each other and pressure in the mold is gradually reduced, thereby giving rise to the expansion and consequent transferring of the semifinished product (5) from the semivulcanization chamber (4) to a surrounding final vulcanization chamber (6). When the inner diameter of the semifinished product (5) is larger than the inner diameter of the final vulcanization chamber (6), said chamber is closed at its inner circumferential edge and then, after possible pressure increase in the mold, at its outer circumferential edge, in order to integrally enclose the semifinished product and enable completion of the vulcanization process.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: March 25, 1997
    Assignee: Pirelli Coordinamento Pneumatici S.p.A.
    Inventors: Alessandro Volpi, Ivano Vismara
  • Patent number: 5585123
    Abstract: A sculpting tool is provided for use in sculpting shapeable mass, such as common beach sand, snow, soft dirt or soft clay. The tool has first and second sculpting heads, each sculpting head having a pair of oppositely-facing cutting elements for cutting into the shapeable mass. The tool also has an elongate shaft or handle extending between the sculpting heads. Each cutting element is serrated so that a user may use the tool to produce patterns in the granular material. Preferably, each cutting element has a different serration pattern, thereby providing the user with four different patterns with which to sculpt. In addition, each sculpting head defines a pair of opposite cup-like structures such that a user may scoop and/or move a portion of the shapeable mass.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: December 17, 1996
    Inventor: Philip J. Busby
  • Patent number: 5545680
    Abstract: By mixing a hydrophilic polymer into an elastomer matrix, elastomers loaded with hydrophilic polymer are prepared which have unique properties. In the illustrated method, a hydrophilic polymer is mixed with an elastomer base polymer. In one embodiment, the hydrophilic polymer forms fibers in a resulting elastomeric matrix. A base elastomer matrix interspersed with hydrophilic polymer made according to the invention can be used in reinforced elastomeric products such as tires.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: August 13, 1996
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Filomeno G. Corvasce, Tom D. Linster