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US 4,124,337 AGranted
Post cure inflator
AssigneeNRM Corporation
InventorJoseph M. Martin
Life of this patent
Estimating the term…
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AssigneeNRM Corporation
InventorJoseph M. Martin
Estimating the term…
A flip-over PCI which includes a rotatable or oscillatable frame having pairs of tire engaging rims mounted thereon, the inner rim of each pair being fixed to the frame on opposite sides thereof and including an axially projecting and axially rotatable lock shaft, the outer rim of each pair including a housing for the lock shaft. The lock shaft and housing are constructed for alignment and safety so that the outer rim cannot rotate with respect to the inner rim and the lock shaft can rotate with respect to the outer rim only when the two rims are adjacent each other when the tire is not inflated. The rotation of the outer rim is precluded by an interference between the two rims when closely adjacent each other and by an interference between the shaft and housing when the rims are separated. One or the other of such interferences is always operative.
A post cure tire inflator comprising a pair of separable tire bead engaging rims, means to move said rims adjacent each other to seat a tire therebetween for inflation, lock means to permit limited separation of said rims during inflaltion and to hold said rims thus separated during inflation, said lock means comprising a key projecting from one rim and a keyhole slot in the other, and interference means between said key and slot mechanically to preclude relative rotation between said key and slot except when said rims are adjacent each other.
A PCI assembly comprising a pair of separable tire inflating rims, a rotatable lock shaft on one and a housing for said shaft on the other, means to move said rims together to engage a tire therebetween with the shaft fully entering said housing, means to rotate said shaft a limited extent to preclude the shaft and housing from being disconnected, and interference means between said shaft and housing to preclude rotation of said housing with respect to said shaft as said rims move apart when the tire is pressurized.
In a post cure inflator, a pair of bead rings movable toward and away from each other to seat and inflate a tire therebetween, a lock for said bead rings comprising a projecting key on one ring and a keyhole slot in the other, means to rotate the key within the slot and to lock the rings together, and interference means between said key and slot to preclude relative rotation of said key and slot unless said key is fully inserted in the slot.
A post cure inflator comprising a trunnion frame, an elevator vertically aligned with said trunnion frame, a ring on said elevator, a pair of tire inflating rims, one secured to said trunnion frame, and the other releasably secured to said one rim and to said elevator, said other rim including an axial projection adapted to fit into and be seated against said ring, and releasable lock means adapted to secure said ring and projection together, said lock means comprising a slide pin in said ring in one position engaging said projection.
A post cure inflator as set forth in claim 22 including means axially simultaneously to move said pins to lock and unlock said other rim with respect to said elevator.
Dependencies are inferred from the claim text.