Slider curtain arrangement for controlling ventilation of a livestock barn
AssigneeNorbco, Inc.
InventorJoseph R. Moreau
Life of this patent
Estimating the term…
Abstract
A slider ventilation curtain for an agricultural building has upper and lower curtains, with the lower curtain having an upper hem pipe that is mounted in a fixed location on the wall of the building, and an upper curtain that slides past the lower curtain, up to a closed position and down to a ventilation position for permitting outside air to enter the building from above the animals. There are roll up mechanisms associated with the lower hem pipes of the two curtains to permit the curtains to be rolled up for storage, so that the wall can be fully open for summer conditions.
Claims14
Slider curtain for controlling ventilation through an open wall of an agricultural livestock building, comprising:
- a lower curtain assembly mounted on said wall and including a horizontal upper hem pipe supported at a midway vertical position on said wall, a horizontal lower hem pipe, and a flexible fabric lower curtain supported between said upper and lower hem pipes;
- an upper curtain assembly mounted on said wall at a vertical position above and overlapping the position of the upper hem pipe of the lower curtain assembly, the upper curtain assembly including a horizontal upper hem pipe, a horizontal lower hem pipe, and a flexible fabric upper curtain supplied between the associated upper and lower hem pipes, said upper and lower hem pipes of the upper curtain assembly being free to travel vertically;
- and
- a hoisting mechanism on said wall and coupled to the upper hem pipe of the upper curtain assembly and adapted for raising and lowering said upper curtain assembly between a raised severe weather position in which ventilation through said wall is closed off and a lowered mild weather position in which an upper portion of the wall is open to permit ventilation.
Dependencies are inferred from the claim text.