Vacuum conduit pick-up device with improved control

Details Vacuum conduit pick-up device with improved control Vacuum conduit pick-up device with improved control

1975-09-29

1977-01-04

J.N., Eskovitz

Harvesters

Fruit gatherer

15340, A01D 4624

Patent

active

040006026

ABSTRACT:
A flexible pick-up conduit is connected to a source of vacuum for picking up leaves and the like. The conduit is mounted to an assembly which includes at least three longitudinally expandable accordian-like tubular control members normally extending parallel to the conduit. Pressurized air flows through the control members, and the relative air flow therethrough is selectively variable, as by a proportioning valve, thereby causing the tilt angle of the conduit and its mouth to change. A momentarily actuatable piston functions through a valve control plate to increase or decrease the expansion of the control members so as to lengthen or shorten the conduit without changing its angular disposition.

REFERENCES:
patent: 3537245 (1970-11-01), Smith
patent: 3913307 (1975-10-01), Cardinal, Jr.

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