US 5,020,725 AGranted

Manual spray apparatus

OwnerJohn E. Waldruminventor

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Abstract

A manual, portable spray apparatus is disclosed to enable a worker to spray fields in a remote area where batteries may be difficult to obtain. The apparatus includes a portable chemical liquid storage tank, from which gravity feeds agricultural liquid chemicals to a rotary spray head. The spray head is powered by a small electric motor which receives its electrical current from a portable dynamo. The portable dynamo is rotated by a portable gear train which in turn is functioned by a hand crank. The worker can maintain spraying operations by rotating the crank as he walks and by applying the rotary spray head to the desired areas to be sprayed as the entire apparatus is moved. The dynamo output can be connected to accessory electrical or electronic equipment such as a radio transmitter, a transistor radio or a lamp to thereby achieve maximum utility under all conditions of use.

Claims11

Dependent claims

A manual, portable spray apparatus comprising

an agricultural chemical, rotary spray head;
a small electric motor connected to rotatively drive the spray head when the motor is energized;
a liquid chemical containing tank feeding liquid chemical to the spray head through an intercommunicating conduit;
a hand rotated dynamo having an output and being adapted to power the electric motor, the dynamo producing an electrical current at the dynamo output when the dynamo is turned;
a speed changing gear train having an input and an output, the dynamo being connected to the gear train output;
electrical conveying means interconnecting the output dynamo with an input of the electric motor to cause rotation of the electric motor upon rotation of the dynamo;
and
an electrical appliance connected to the dynamo output, the electrical appliance generating an electrical impulse upon receiving sufficient electrical current from the dynamo,
the electrical appliance being a radio transmitter and the electrical impulse being a radio signal;
whereby, the electric motor and the rotary spray head are rotated when the dynamo is rotated to generate the electric current to energize the electric motor.

7 more elements

Dependencies are inferred from the claim text.