The Goodyear & Tire Rubber Company

Other

Robert L Duncan

Clarence R Cole

Paris H Wiley

A system for locating and determining the distance to an object with respect to a movable vehicle is provided which utilizes at least three transducers wherein at least two of the three transducers operates either as a receiver transducer, in which case the remaining transducer operates as a transmitter transducer, or two of the three transducers operate as transmitter transducers in which case the remaining transducer operates as a receiver transducer with the system also including means for sequentially operating the three transducers for sending and receiving reflected ultrasonic signals to simultaneously determine both the location and distance of persons or objects with respect to the transducers.

Object indicator for moving vehicles

Method and apparatus for curing a tire having an internal cavity using as heat and fluid pressure media first steam and then cooler inert gas. The time rate of pressure loss in the cavity is determined in each tire curing cycle by closing the cavity so as to form a completely closed chamber for a test time less than the normal cure time for the tire. Pressure loss during the test time is monitored and if determined to be at a greater than tolerable rate a warning device is actuated and means for loading a next tire into the mold is rendered inactive.

Tire press and mold leakage control

Apparatus for curing a tire having an internal cavity using as heat and fluid pressure media first steam and then cooler inert gas. The time rate of pressure loss in the cavity is determined in each tire curing cycle by closing the cavity so as to form a completely closed chamber for a test time less than the normal cure time for the tire. Pressure loss during the test time is monitored and if determined to be at a greater than tolerable rate a warning device is actuated and means for loading a next tire into the mold is rendered inactive.

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Akron, OH, United States of America

Robert L Duncan