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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 8186984 | Tire mold and tire with internal grooves in tire tread A tire mold is described that includes a plurality of tread molding segments having an inner surface for molding the tire tread. The mold further includes a plurality of sidewall plates having an inner surface for molding the tire sidewall. The tread mold segments t... | 05/29/2012 |
| 8177538 | Tire mold having sidewall structure An apparatus for molding a tire includes a first mold section having a first cavity, with an annular ridge disposed thereon. The apparatus also includes a second mold section having a second cavity. A plurality of lugs are removably attached to the first mold sectio... | 05/15/2012 |
| 8162642 | Molding blade for pneumatic tire tread A pneumatic tire tread has tread elements formed by circumferential and/or lateral grooves. At least one tread element has a sipe that devolves from a constant width sipe having a three dimensional aspect in at least a portion of the radially outer portion of the si... | 04/24/2012 |
| 8123508 | Venting valve to be used in venting bores of vulcanization molds Vent valve for venting bores of vulcanization moulds, especially for the tread profile area, consisting of a valve sleeve, in which a valve insert and a wound spring are movably located, wherein the valve insert consists of a valve shank, which is at one end equippe... | 02/28/2012 |
| 8105061 | Container mold exchanging apparatus A container mold exchanging apparatus includes: a container support body which supports the jacket of the container from which the lower sidewall mold is separated; a gripping mechanism which includes upper and lower gripping members and grips each tread mold so as ... | 01/31/2012 |
| 8100677 | Vacuum container for a tyre curing mold A vacuum container for a tyre curing mold having two sidewalls and a number of lateral sectors; the container having an inclined-surface actuating device, which moves the lateral sectors radially, is activated by a press having a movable plate with a central airtigh... | 01/24/2012 |
| 8033804 | Pressure measurement device and mould for vulcanizing rubber for tires A device (20) comprising a pressure measurement surface (28) functionally attached to a proof body (22) and a rigid component (30), functionally attached to the proof body (22), the measurement surface (28) forming a surface... | 10/11/2011 |
| 8002530 | Mold for vulcanization of tire Provided is a mold for vulcanization of a tire which does not entail troublesome work including removing vent spews, and which does not spoil the external appearance of the tire with the spews, and prevents light failures from occurring in the tire. Vent grooves are... | 08/23/2011 |
| 7963755 | Post cure rotational stations An apparatus for cooling a cured tire comprising: A retractable support member having a distal end connected to a support plate; the support plate having an inflatable bladder mounted about its circumferential edge... | 06/21/2011 |
| 7891962 | Tire building core manipulator apparatus A tire building core manipulating apparatus for a segmented tire building core is provided, the core including a plurality of core segments extending generally radially from a central axis. The manipulating apparatus includes a support frame; a core latching mechani... | 02/22/2011 |
| 7883326 | Apparatus and assembly for interchanging indicia of tire molds An apparatus selectively forms indicia of a tire sidewall. The apparatus includes a tire mold member for vulcaninzing an uncured tire. The tire mold member includes a surface engageable with a portion of the uncured tire, a detachable indicia forming member engageab... | 02/08/2011 |
| 7874821 | Tire forming mold A tire forming mold in which a depression for forming a land portion of a tread surface is provided in a molding surface forming a tread pattern of a tire. The tire forming mold has a pocket provided in the depression, a block fitted into the pocket to form an exhau... | 01/25/2011 |
| 7850439 | Vent plug for a tire vulcanization mold, tire vulcanization mold and method for manufacturing a pneumatic tire using the tire vulcanization mold The invention relates to a vent plug for a tire vulcanization mold used for a vent hole of the mold, the tire vulcanization mold, and a manufacturing method for the tire using the mold. The vent plug includes a plug holder with a hollow ventilation portion and a plu... | 12/14/2010 |
| 7717691 | Tire mold with vent inlet disposed under mold rib A die rib for a tire mold defines the inlets to vent passages of the mold through the sides of the die ribs so that the vent passages do not open through the contour surface of the mold. In one exemplary configuration, the invention provides a die rib having a vent ... | 05/18/2010 |
| 7670123 | Tire tread wear indicator molding device for forming a tread wear indicator A tire has at least one tread wear indicator. Each wear indicator is a single mark that provides continuous information to the consumer, while changing its presentation based upon the amount of tread wear. The mold blade employed to form the ear indicator has a seri... | 03/02/2010 |
| 7661942 | Device for molding a keyhole sipe in a tire tread The present invention provides for an improved device for molding keyhole sipes larger in size, i.e. sipes having a wider passage, than currently being formed in treads that will avoid damaging the tread during formation and removal thereof from a mold. The device i... | 02/16/2010 |
| 7645131 | Venting valve to be used in venting bores of vulcanization molds Vent valve for venting bores of vulcanization moulds, especially for the tread profile area, consisting of a valve sleeve, in which a valve insert and a wound spring are movably located, wherein the valve insert consists of a valve shank, which is at one end equippe... | 01/12/2010 |
| 7607908 | Insert for a tire mold vent An insert for a tire mold is provided. In one embodiment, the insert has an elongated cylindrical body. The insert includes at least one channel portion with a plurality of channels disposed in a non-axial direction along the surface of the insert. The at least one ... | 10/27/2009 |
| 7575424 | Flexible molding device for manufacturing a sunken groove in a tire tread A mold and molding device for forming a sunken groove in a tire is provided. The molding device includes a thin flexible wire having a desired cross-sectional shape. The wire thickness can range from about 0.5 mm to about 5 mm. The flexible wire is preferably hypere... | 08/18/2009 |
| 7566213 | Flexible enrobed molding device for manufacturing a sunken groove in a tire tread A mold and molding device for forming a sunken groove in a tire is provided. The molding device includes a thin flexible wire having one or more molded elastomer elements thereon. The flexible wire is preferably hyperelastic and the molded elastomer is preferably si... | 07/28/2009 |
| 7544054 | Flexible molding device for manufacturing a sunken groove in a tire tread A tire mold and a molding device for forming a sunken groove in a tire are provided. The molding device includes one or more rigid elements joined to a flexible member along an attachment point or line on the connecting surface of the rigid element. The flexible mem... | 06/09/2009 |
| 7530802 | Molding element for a mould for molding a cutout in a tire tread A tread provided with a plurality of cutouts of essentially transverse orientation and characterized in that when new, some of the transverse cutouts form on the running surface hollowed zones of average width Lt greater than or equal to 2 mm and of maximum depth Pt... | 05/12/2009 |
| 7530803 | Insert for a tire mold vent An insert for a tire mold is provided. In one embodiment, the insert has an elongated cylindrical body. The insert includes at least one channel portion with a plurality of channels disposed in a non-axial direction along the surface of the insert. The at least one ... | 05/12/2009 |
| 7527489 | Apparatus for vacuum forming a tire, wheel or other item from an elastomeric material A vacuum forming apparatus for forming a tire, wheel, or other item in a mold having a cavity with the shape of the item to be cast that is contained in the apparatus. The vacuum forming apparatus utilizes a bell shaped outer cover arranged to seal along its lower e... | 05/05/2009 |
| 7507077 | Self-locking tire blade system A tire blade system for curing tires including a tire mold defining at least one slot, the slot defining a first recess and a second recess spaced by a bridge, the walls of the first and second recess being straight; a blade including a body exposed within the tire ... | 03/24/2009 |
| 7507078 | Flexible molding device for molding a sunk groove, a sunk blade, and a large keyhole sipe in tire tread A tire mold and a molding device for forming a sunken groove, sipe in a tire is provided. The molding device molding device comprises a flexible member and a blade element, the flexible member having a distal end for mounting to a tire mold, a radiused midsection an... | 03/24/2009 |
| 7481638 | Extruding tread components directly into a tire mold A method may include the steps of: (a) providing a tire mold; (b) providing an extruder operatively connected to a head with a die assembly; (c) inserting at least a first compound into the first extruder; (d) forming an extrudate from the die assembly; (e) applying... | 01/27/2009 |
| 7448859 | Devices and method for treating cooling fluids utilized in tire manufacturing Devices and methods for treating, preventing from growth, and neutralizing microorganisms in cooling fluids utilized in tire manufacturing, using high-frequency, low-energy ultrasound. In one embodiment, a method includes simultaneously exposing said cooling fluid t... | 11/11/2008 |
| 7442335 | Apparatus and method for loading and unloading a tire press A tire press has an upper mold fixedly attached to a top plate. A bottom mold is fixedly attached to a bottom plate. The tire press has a plurality of guide posts adapted to maintain proper alignment of the upper mold and the lower mold as the tire press opens and c... | 10/28/2008 |
| 7402031 | Piece for tire mold, method of producing the piece, piece-type tire mold and method of producing the piece-type tire mold To form a fine slit having a width of 0.1 mm or less in each piece of a piece type tire mold, a plate-like shim member 44 having a width of 0.1 mm or less is inserted into a rubber mold 40A when a piece 40 is to be produced, a molten metal such ... | 07/22/2008 |
| 7399172 | Apparatus for vacuum forming an elastomeric tire A vacuum forming apparatus and process for its use in forming a transport tire from an elastomeric material that includes a mold having a cavity or annular area wherein a transport tire core of plies, belt and beads is laid-up on a mandrel located within the mold. T... | 07/15/2008 |
| 7384252 | Method for producing tire vulcanizing mold and tire vulcanizing mold A 3-D solid model of a tire vulcanizing mold is constructed on CAD, lamination models the optimum value of the pitch of which is determined in consideration of molding accuracy and processing time are created by dividing this model in a predetermined lamination dire... | 06/10/2008 |
| 7360749 | Rubber molded article vulcanizing mold, and method for cleaning the same Semi-circular cover members 17 and 17 having a spring function for opening and closing the openings of pores 15S are provided on the cavity inner wall side of a porous air vent 15 in order to close the openings of the above pores 15 | 04/22/2008 |
| 7338571 | Method of manufacturing tire with metal studs A stud for vehicle tyres includes a central body, a tip connected to a first end of the central body, and a base provided on a second end of the central body. The first end of the central body is opposite the second end. The stud has at least one abutting shoulder a... | 03/04/2008 |
| 7290996 | Tire vulcanizing mold A vulcanizing mold for pneumatic tires includes a plurality of mold pieces for forming a tread portion of the tire, which can be assembled with each other in a circumferential direction of the tire. Each mold piece has a molding surface for forming a tread pattern o... | 11/06/2007 |
| 7276198 | Method and mold for making tire with tie bar A tire having an outer surface and plurality of circumferential and lateral grooves formed into the outer surface. The circumferential and lateral grooves extend to at least one groove depth to define a groove bottom surface. The circumferential and lateral grooves ... | 10/02/2007 |
| 7252488 | Forming mold A mold used to form a rubber or resin article which includes a shaping surface for shaping a surface of an object to be molded, and a vent structure for releasing air between the shaping surface and the surface, wherein the vent structure includes EDM vents each hav... | 08/07/2007 |
| 7225844 | Tread comprising incisions and lamella for molding these incisions A tread of elastomeric material for tires, this tread being provided with a plurality of incisions, each incision of average width e being defined by facing walls, this tread being characterized in that at least one of the walls defining each incision comprises at l... | 06/05/2007 |
| 7186103 | Tire tread mould The invention relates to a tire tread mould comprising a lower molding part (2) and an upper molding part (3) defining respectively the outer surface or the inner surface of a tread, at least one of the parts being movable between two positions corresp... | 03/06/2007 |
| 7172722 | Method of vacuum forming a molded article having an undercut channel A display unit for displaying various flat or flat-packaged articles, such as greeting cards, magazines, brochures, and the like is provided. The display unit includes a molded backboard having a plurality of walls joined to one another by a plurality of horizontal ... | 02/06/2007 |
