Patent application number | Description | Published |
20090095388 | Tire Tread With Tread Wear Indicator - A tire tread | 04-16-2009 |
20090165912 | TIRE WITH RETRACTABLE STUD - A retractable stud pin assembly is described for use in a conventional tire. The stud pin assembly includes a housing having an elastomer compartment and a spring in cooperation with the elastomer. A stud pin is mounted to the spring. The assembly may further optionally include a fluid compartment in cooperation with the elastomer compartment and the spring. The assembly may further include a second compression spring, which cooperates with the first spring and stud pin. An optional adjustment nut may be used to manually raise and lower the pin height as desired. An optional adjustment pin may also be used to extend into an optional fluid compartment to fine tune the pin height. | 07-02-2009 |
20100159047 | TIRE MOLD AND TIRE WITH INTERNAL GROOVES IN SHOULDER AREA - 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 together with the sidewalls cooperate to form a tire molding cavity. The sidewall plate further comprises a slot that extends from the outer surface of the tread segment to the inner mold surface, and has a piston having a head slidably received in the slot. A pin is positioned between the piston head and an end of the slot. The mold further includes actuating means for actuating the piston in the slot when the mold is closed. | 06-24-2010 |
20110088822 | STUDS FOR A TIRE - A tire includes a carcass, a tread band having a radially outer tread surface and a plurality of radially extending recesses, and an anti-slip structure disposed in one of the radially extending recesses. The anti-slip structure includes a first end portion, a second triangular middle portion, and a third triangular end portion. The third end portion includes three radially extending projections for providing traction over ice. The shape of the radially extending recess corresponds to the shape of the anti-slip structure such that the anti-slip structure is both radially and rotationally secured within the recess relative to the tread band of the tire. | 04-21-2011 |
20110088823 | STUDS FOR A TIRE - A tire includes a carcass, a tread band having a radially outer tread surface and a plurality of radially extending recesses, and an anti-slip structure disposed in one of the radially extending recesses. The anti-slip structure includes a first circular inner portion, a second outer portion, and a third core portion. The third core portion comprises an assembly of three pin structures for providing traction over ice. Each pin structure has a wedge-shaped base portion secured within the first circular inner portion and a pin extending through the second outer portion to the tread surface. The three wedge-shaped base portions combine to form a circular base portion for the assembly. | 04-21-2011 |
20110151038 | MOLD DEVICE FOR FORMING GROOVES IN TIRE SHOULDER - A mold device is described for use in a mold having a plurality of tread molding segments. Each tread molding segment has an end face for mating with an adjoining segment. The mold device includes a piston located on the segment and is actuated by the opening and closing of the mold. The piston is positioned within a first chamber and has a plunger end in communication with a working material and a spring. Each of the mold segments further includes a retractable blade assembly having a distal end in fluid communication with a second chamber. The first chamber is in fluid communication with the second chamber. Closing of the mold compresses the piston, forcing the working fluid to transfer from the first chamber to the second chamber, actuating the blade assembly. | 06-23-2011 |
20110151039 | 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 together with the sidewalls cooperate to form a tire molding cavity. The sidewall plate further comprises a slot that extends from the outer surface of the tread segment to the inner mold surface, and has a pin extending from the outer surface of the tread segment. The pin is mounted to a rotatable body which can swivel. The rotatable body further comprises a guide pin which cooperates with a working member to rotate the body into a desired position in order to position the pin in the tire tread to be molded. The working member actuates the rotatable body into various positions. | 06-23-2011 |
20130160927 | AIR MAINTENANCE TIRE METHOD OF CONSTRUCTION - A method of constructing a tire includes: constructing an elongate strip core; encasing the strip core into a containment within an uncured flexible tire component, the strip core extending between an air inlet and an air outlet cavity in the flexible tire component; building on a tire building drum a green tire carcass from tire components including the flexible tire component and encased strip core; removing the encased strip core from the cured flexible tire component to leave within the flexible tire component a substantially unobstructed air passageway; and inserting a permanent air inlet assembly into the air inlet cavity and a permanent air outlet assembly into the air outlet cavity. | 06-27-2013 |
20130160928 | METHOD OF FORMING AN AIR PASSAGEWAY IN AN AIR MAINTENANCE TIRE - A method of forming an air passageway in a an air maintenance tire carcass includes: embedding an elongate strip within a pre-cured flexible tire component of a pre-cured tire carcass, the elongate strip extending in a longitudinal direction between an air inlet cavity and an air outlet cavity in the flexible tire component; curing the pre-cured tire carcass including the flexible tire component; extracting the elongate strip longitudinally end-to-end from occupancy within the flexible tire component; and defining an air passageway in the flexible component by the space previously occupied by the withdrawn elongate strip. A free end portion of the strip is accessible at either the air inlet cavity or the air outlet cavity, and the elongate strip may be extracted from either the air inlet cavity or the air outlet cavity by a tensile withdrawal force applied to the elongate strip free end. | 06-27-2013 |
20140130895 | CONNECTOR SYSTEM AND AIR MAINTENANCE TIRE ASSEMBLY - A connector system and tire assembly includes a tire having a toroidal tire cavity for containing pressurized air, an elongate integral air passageway contained within a flexible tire component, the air passageway extending between an air inlet cavity and an air outlet cavity in the flexible tire component, the air passageway extending for at least a partial circumferential path around the tire, and a metallic connector assembly within the outlet cavity, the connector assembly including a through-channel for conducting air flow communication between the air passageway within the flexible tire component and a chamber of the connector assembly. | 05-15-2014 |
20150041035 | VALVE ASSEMBLY FOR AIR MAINTENANCE TIRE - An air maintenance tire and air pump assembly includes a sidewall and a tire cavity for maintaining pressure; an elongate tubular air passageway enclosed within a flexing region of the sidewall, air passageway, the air passageway operably closing segment by segment in reaction to induced forces from the tire flexing region as the flexing region of the tire wall rotates adjacent a rolling tire footprint, the elongate air passageway having at least one check valve device seated within the axial air passageway; and a relief valve assembly comprising a chamber body, a valve, a piston, and a silicone ring, the valve having a valve body and a valve head, the valve head, deforming to release over-pressurized air from the tire cavity to atmosphere. | 02-12-2015 |