Fruehauf Corporation

Fruehauf Trailer Corporation

Lawrence A Botkin

Mahmud K Javadi

A drop frame trailer in which the vertical webs of the beams in the joints between the gooseneck portion and a vertically extending portion are reinforced by welding generally triangularly shaped, unitary reinforcing members to the inboard and outboard sides thereof. The preferred reinforcing member is generally triangularly shaped and has a generally triangularly shaped opening positioned generally centrally therein. An alternative reinforcing member is generally hourglass shaped with no central opening therein.

Drop frame truck trailer

An aerating or fluidizing device is located adjacent the gravity discharge opening of a hopper. The device is in the form of a flexible, resilient member fixed so that a marginal edge normally contacts and defines an interface with an associated surface. Air under pressure is fed to the interface in such fashion as to cause the marginal edge of the resilient member to flutter and allow the air to escape in randomly directed 'puffs.' The fluttering movement combined with the intermittent puffs of air causes pulverulent material to be agitated, aerated and/or fluidized as it passes to the discharge opening.

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Omaha, NE, United States of America

Lawrence A Botkin