Class 425/49 - Internal mold, form or support for toroid

Subclass of Class 425 - Plastic article or earthenware shaping or treating: apparatus
Definition: Apparatus comprising an annular mold or form designed to
No. of patents: 24
Last issue date: 05/24/2005

Number	Title	Issue Date
6896235	Mold for molding foamed tube for tire, and method of manufacturing foamed tube for tire A mold for molding a foamed tube for a tire is formed from a first mold and a second mold. Each mold has an annular concave portion for tube molding, and joining faces which are continuous with the annular concave portion and are formed at an inner side and an outer...	05/24/2005
6479008	Method and apparatus for moulding and curing tires for vehicle wheels A green tire manufactured on a toroidal support is closed in a vulcanization mould. Steam or another fluid under pressure is infed to a diffusion gap which is formed, following an expansion of the tire, between the inner surface of the latter and the oute...	11/12/2002
6332999	Method and apparatus for moulding and curing tires for vehicle wheels A method of moulding and curing tires for vehicle wheels includes disposing a tire being worked on a rigid toroidal support having an outer surface the shape of which substantially matches an inner surface of the tire, closing the tire and rigid toroidal ...	12/25/2001
6287101	Semi-pneumatic mine service tire A semi-pneumatic tire assembly including a tire casing 22 and a lining 26 is provided. The lining 26 includes a contoured inward surface 30 defining an inflation chamber 18 about an associated wheel rim. The lining 26 minimizes the risk of puncture damage...	09/11/2001
5310518	Method and device for manufacturing curing bladders A method and device for manufacturing curing bladders (2), whereby a curing mold (3) defines, via a first (4) and second (5) half mold and an inner core (6), an inner molding chamber (7) and an outer injection chamber (34) communicating with the inner cha...	05/10/1994
5290163	Metal mold for vulcanizing a tire An annular metal mold portion forming a tire tread is constructed by assembling a plurality of sector metal molds 2 severed in the circumferential direction, and all or some of the sector metal molds 2 are constructed of a plurality of smaller parts 3 sev...	03/01/1994
5149545	Central mechanism of tire vulcanizer According to a central mechanism of a tire vulcanizer of the present invention, in a central mechanism of a tire vulcanizer in which a lower clamp ring holding a lower end portion of a bladder is fixed detachably to a lower ring having a passage of a vulc...	09/22/1992
5127811	Bladderless type moulding apparatus A bladderless tire mold press for tires including lower and upper platens and a mechanism for moving the platens relatively toward one another from an open position to a closed molding position. Each of the platens includes side wall molds for molding the...	07/07/1992
4984976	Mold for making annular polymeric articles A method of making annular polymeric articles in which a workpiece is placed on a cylindrical shaping surface and is divided about the perimeter into alternating first and second portions. Moulding is done in two stages, the first stage including moulding...	01/15/1991
4895692	Mold for the molding and vulcanizing of a rubber tire A mold for molding and vulcanizing a rubber tire comprises a rigid core defining an interior surface of the tire, two side parts and a peripheral ring divided into a plurality of segments. In order to be able to close the mold, all the members are designe...	01/23/1990
4770324	Dental cream package Dental cream in contact with a polyolefin resin surface of a package such as a laminate tube, a mechanical dispenser or a flexible sachet. The dental cream contains a dentally acceptable water-insoluble alkaline earth metal salt, a liquid vehicle and an a...	09/13/1988
4756678	Arcuate plate device for tire retreading apparatus Disclosed is a hub replacement device for use in vehicle tire retreading processes. An envelope is sealed against the tire carcass sidewalls to provide an environmental seal of the new tread on the carcass crown during the vulcanization process. Three arc...	07/12/1988
4738738	Manufacture of vehicle tires A method and apparatus for building a tire comprising fitting a patterned cavity of a tread mould with unvulcanized tread composition, shaping the radially inner surface of the tread to a first profile to accommodate a tread reinforcement breaker, consoli...	04/19/1988
4662834	Hub replacement device for tire retreading apparatus Disclosed is a hub replacement device for use in vehicle tire retreading processes. An envelope (30) is sealed against the tire carcass sidewalls (22, 24) to provide an environmental seal of the new tread (54) on the carcass crown (50) during the vulcaniz...	05/05/1987
4653992	Cure press for retreading tires A segmented matrix cure press retreads pneumatic tires by vulcanizing a tread strip onto a tire casing. The press centers the tire and provides a tailored support to the entire casing periphery of the tire. A bottom mold cavity forming member having a rin...	03/31/1987
4631014	Hydraulic curing press A time curing press includes an upper mold part which is movably arranged by means of long-stroke cylinders relative to a lower mold part. Extending at a central area of the upper mold part and connected thereto is a vertical guide bar which is supported ...	12/23/1986
4545750	Apparatus for vulcanizing a tire This disclosure relates to apparatus for vulcanizing a tire, and includes a pair of generally annular split dies which are axially movable relative to each other, and a pair of generally circular supports surrounded by the dies. The supports include bead ...	10/08/1985
4401502	Method and apparatus for molding a tire with an annular reinforcement below the tread surface An apparatus for molding a tire with an annular reinforcement below the tread surface includes a first set of molding segments for molding a tire, a winding mechanism for winding a flexible reinforcement band or thread about the molded tire under tension ...	08/30/1983
4242070	Shape of cut for semicure butyl rubber bag A cylindrical expandable sleeve for use in a curing process wherein a pair of annular end portions and a cylindrical expandable body have a longitudinally extending splice with interlocking ribs and surfaces to firmly interconnect such body into a unitary...	12/30/1980
4211592	Method of building a closed tube-tire A method of building a closed tube-tire includes constructing a green tire carcass (13) on a disintegratable core (17) and curing the tire carcass (13) in a curing mold (10) having two halves (11,12) which are movable between opened and closed positions. ...	07/08/1980
4197068	Apparatus for molding vehicle tires The invention provides an apparatus for molding vehicle tires. Component parts of the tire are molded separately in molds having different shells but using the same core. The parts of the tire are at least partially vulcanized at the same time as they are...	04/08/1980
4181488	Tire tread forming mold body A body having rubber material thereon is positioned on a lower member, and an upper member is moved toward the lower member, such relative movement causing tread-forming shoes to move to inward positions to form a tread on the rubber material. As an alter...	01/01/1980
4181482	Tire tread forming apparatus A body having rubber material thereon is positioned on a lower member, and an upper member is moved toward the lower member, such relative movement causing tread-forming shoes to move to inward positions to form a tread on the rubber material. As an alter...	01/01/1980
4177027	Core portion for a tube tire Apparatus includes a rigid mold body and an expandable bladder associated therewith. The bladder is inflatable and expandable to form and press sand core material between itself and the mold body while exerting uniform compressive force over the total sur...	12/04/1979

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Class 425/49 - Internal mold, form or support for toroid