US 4,392,563 AGranted

Brake mechanism for material handling system

OwnerLee Holmaninventor

Life of this patent

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Abstract

A brake primarily for use with a cement dispensing system such as those attached to the rear of a cement truck. A dispensing chute receives material from the tube connecting with the drum and is mounted to swing through an arc for carrying the cement away from the truck. The brake comprises an annular flange mounted concentric with the dispensing tube and a cooperating brake having shoes for gripping the flange. By fixing the flange to either the tube or the chute and the brake to the other member, actuation of the brake will stop and hold the chute in a selected radial position. The brake functions better than prior art devices because the flange in being positioned around the tube, provides a substantial lever arm for allowing the brake to stop and hold the chute.

Claims1

Dependent claims

An unloading system for a cement carrying truck wherein cement is carried in a drum and emptied therefrom through a rear opening, said unloading system comprising:

a dispensing funnel supported on said trunk and comprising a vertically extending cylindrical section positioned to receive and transport cement from said drum rear opening;
an elongated chute for carrying cement from said funnel;
means supporting one end of said chute in a position to receive cement from said funnel with the chute being rotatable in a generally horizontal plane about the cylindrical section of said funnel and to the rear of said truck;
and
energizeable brake means for locking said chute in any of said positions about said funnel cylindrical section comprising;
a flange fixed to said chute and extending partially around and normal to said funnel cylindrical section to move around said funnel with said chute as it is rotated;
and
brake mechanism fixed to said funnel and including clamping means to squeeze said flange when said brake mechanism is energized thereby stopping and holding said chute in any selected horizontal position to which it is rotated.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/321,182Filed 16 Nov 1981 · continuation
Priority: 31 Mar 1980
Granted: 12 Jul 1983
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B60P 3/16
Vehicles adapted to transport, to carry or to comprise special loads or objects: for carrying mixed concrete, e.g. having rotatable drums
B28C 5/4244
Charge or discharge systems therefor: discharging; Concrete conveyor means, chutes or spouts therefor
B65G 11/186
Supports or mountings: for bulk
B60P
Vehicles adapted for load transportation or to transport, to carry, or to

Family

Serial136,178Parent of this continuation · filed 31 Mar 1980
US 4,392,563 AThis patent

From the US filing history. Foreign family members aren’t listed.

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