Gregory M Calico

50885391, Feb 18, 1992

Sep 11, 1990

7/580707

Bryce Mannen - Conway AR
Gregory M. Calico - Conway AR
Tumkur R. Vijay - Newark DE

FMC Corporation - Chicago IL

B60C 25132

157 117

A tire changer having a vertical wheel hold down shaft rotatably mounted in a base cabinet and extending upward to a wheel mounting end portion above the cabinet. A collar attached to the hold down shaft beneath its mounting end portion and having a frusto-conical section extending upward to a backing flange centered about the hold down shaft. A locking pin which fits into a wheel lug hole extends upward from the flange. An upwardly extending biased centering cone slidably fitted around the hold down shaft. A bead breaker arm pivotally attached to an outside wall of the cabinet to pivot in a horizontal plane. A pneumatic cylinder is provided which is linked to both the hold down shaft and the bead breaker arm to actuate both, thus providing one pneumatic means for two different functions.

50961608, Mar 17, 1992

Aug 21, 1991

7/750743

Gregory M. Calico - Conway AR
Judson D. Spillyards - North Little Rock AR
Ronald L. Hill - Conway AR

FMC Corporation - Chicago IL

B66F 324

254 93HP

A scissor jack of the type which is mountable on and usable in conjunction with a conventional automotive vehicle lift to permit a selected axle of the vehicle to be elevated relative to the lift. The invention provides a gravity activated locking mechanism which includes a plurality of lock keys of different widths. The keys fall individually into a lock position as the jack rises incrementally in height, to prevent unintended lowering of the jack at any height or any time during the lifting process.