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US 4,527,946 AGranted
Tire curing press with pop-up, rotating nozzle
AssigneeNRM Corporation
InventorsAnand P. Singh, Virgil Y. Blosser, Thomas A. Crumbacher
Life of this patent
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AssigneeNRM Corporation
InventorsAnand P. Singh, Virgil Y. Blosser, Thomas A. Crumbacher
Estimating the term…
A pop-up, rotating nozzle in a tire curing press provides for dispersed and uniform introduction of fluid media into the upper containment portion of a curing and shaping bladder during tire cure and cooling, and yet allows for relatively close spacing of upper and lower bladder clamps such as during bladder insertion and stripping operations. The nozzle has an outlet head in communication with the interior of the bladder and a supply stem mounted in a lower bladder clamp and porting assembly of the press for both axial and rotational movement. The nozzle is movable against a spring biasing force by the upper bladder clamp to a lowermost retracted position which allows the bladder clamps to be axially spaced apart a distance substantially less than their axial spacing during cure. As the bladder clamps move apart to their respective positions for cure, the spring urges the nozzle to an elevated dispensing position locating the outlet head thereof in the upper containment portion of the bladder and closely adjacent the upper bladder clamp for more uniform circulation of fluid media with the drain located at the bottom of the bladder. The outlet head is provided with a plurality of tangentially arranged outlets or jets such that the nozzle will rotate causing a uniform and dispersed flow of fluid media throughout the interior of the bladder. The outlet head may also serve to locate the bladder clamps with respect to one another when engaged therebetween.
In a tire curing press, a center mechanism operative to define a fluid chamber in which heat transfer fluid media is circulated to shape and cure an uncured tire carcass in the press, nozzle means for introducing such fluid media into said chamber, and means for mounting said nozzle means in said center mechanism for movement between relatively retracted and extended positions in said chamber, said means for mounting including a porting member in said center mechanism, and said nozzle means being mounted in said porting member for extension and retraction.
In a tire curing press, a center mechanism operative to define a fluid chamber in which heat transfer fluid media is circulated to shape and cure an uncured tire carcass in the press, nozzle means for introducing such fluid media into said chamber, and means for mounting said nozzle means in said center mechanism for movement between relatively retracted and extended positions in said chamber, said center mechanism including a shaping and curing bladder and upper and lower clamps therefor which are relatively vertically movable to a relatively close vertical spacing less than their vertical spacing for cure, and said nozzle means being mounted in said lower bladder clamp for vertical movement from such retracted position accommodating such relatively close vertical spacing of said bladder clamps to such extended position upon vertical separation of said bladder clamps to their respective positions for cure.
In a tire curing press, nozzle means for introducing heat transfer fluid media into the cavity of a tire for shaping and cure of the tire in the press, and means for rotating said nozzle means to effect uniform and dispersed flow of fluid media within such cavity.
In a tire curing press including a center mechanism operative to define a fluid chamber in which heat transfer fluid media is circulated under pressure to shape and cure an uncured tire carcass;
Dependencies are inferred from the claim text.