MODULAR, ROLL-DOWN AIRFLOW CONTROL APPARATUS

摘要

A flexible yet durable roll-down curtain is normally stored in a rolled condition, and is unrolled during use. The curtain includes plural, vertically spaced apart rods extending through a width of the curtain. When rolled, the curtain wraps around an elongate, spring-loaded mandrel assembly. The mandrel assembly couples with a pair of mounting brackets mounted at opposing sidewalls of a temperature-controlled compartment. A pair of locking brackets disposed directly opposite one another at opposing sidewalls engage opposing ends of a rod extending through the curtain, to retain the curtain in a deployed position. A flexible side seal provides a sealing engagement vertically along each side edge of the curtain. When deployed, the curtain extends from ceiling to floor, and from sidewall to sidewall, forming a barrier against uncontrolled air movement from a space on either side of the curtain to a space on an opposing side of the curtain.

主权项

1. A thermal curtain apparatus, comprising:
a mandrel assembly including:
an elongate inner shaft disposed coaxially within an elongate cylindrical outer shaft, wherein opposing ends of the inner shaft extend longitudinally beyond each corresponding end of the outer shaft;a curtain comprising an expanse of a flexible material coupled at a first end thereof along the outer shaft, wherein the curtain is configured to concentrically wrap around the outer shaft in response to rotation of the outer shaft in a first direction during use, and to unwrap from the outer shaft in response to rotation of the outer shaft in a second direction during use; anda coiled spring coupled at a first end with the inner shaft and coupled at a second end with the outer shaft, wherein rotation of the outer shaft in the second direction relative to the inner shaft loads tension in the spring; a pair of mounting brackets, wherein each mounting bracket of the pair includes:
a planar base portion configured to confront and be securely coupled with a vertical mounting surface via one or more fasteners, anda mandrel support portion configured to receive and support one of two opposing ends of the mandrel assembly in an elevated position relative to the vertical mounting surface; a first elongate rod coupled with and extending transversely across the curtain proximate to an opposing second end thereof, wherein each of two opposing ends of the first elongate rod extends beyond respective opposing sides of the curtain; a pair of locking brackets, wherein each locking bracket of the pair includes:
a planar base portion configured to confront and be securely coupled with the vertical mounting surface via one or more fasteners, andan inverted-V shaped rod engaging portion configured to receive and retain one of the two opposing ends of the elongate rod and to retain the curtain in an unwrapped, deployed condition in opposition to tension loaded in the spring.