Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1993-11-26
1995-01-31
Weston, Caleb
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
141 4, 1523311, 1523391, 152811, B60C 504, B60C 520, B60C 522
Patent
active
053851919
ABSTRACT:
A pneumatically-inflated inner tube having two compartments such that if one compartment is damaged and deflates, the other compartment may be inflated without removing the tire. The compartments inflate independently of each other using separate valves; each compartment has its own valve for inflation. When inflated, the two compartments surround the same annular axis. The two embodiments described have primary and secondary compartments. In the first embodiment, each compartment is a discrete component wherein the secondary compartment is disposed inside the primary compartment. The compartments connect where the valve of the secondary compartment projects through an aperture in the primary compartment. In the second embodiment, the two compartments form an integral unit. The compartments share a common surface such that one compartment is formed inside the other compartment. The primary compartment inflates using a valve disposed on the common surface which terminates at an aperture open to the primary compartment. The secondary compartment inflates using a valve disposed on the common surface in which the aperture opens to the secondary compartment.
REFERENCES:
patent: 499600 (1893-06-01), Sherbondy
patent: 837458 (1906-12-01), Fairchild
patent: 1081010 (1913-12-01), Breitung
patent: 1178809 (1916-04-01), Kraft et al.
patent: 1202604 (1916-10-01), Stevenson
patent: 1433643 (1922-10-01), Overlander
patent: 1506161 (1924-08-01), Caldwell
patent: 1592607 (1926-07-01), Lemos
patent: 1696707 (1928-12-01), Booth
patent: 1900568 (1933-03-01), Krug
Aflague Allen
Talbot Mark
Etherton Sandra L.
Johnstone Adrienne C.
Weston Caleb
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