Rite-hite Corporation

Garrett L Goins

Cary W Pinkalla

A vertical retainer assembly for a roll-up door that selectively blocks and unblocks a doorway, the door including a curtain attached to a roller, and vertical members disposed on either side of the doorway, which include vertically-disposed guide tracks for receiving and guiding the curtain in a vertical plane, the vertical retainer assembly compromising: a horizontally disposed member attached to the curtain, the member being movable out of the vertical plane of the door; and a retaining surface in one of the vertical members at a location external to the guide track, the horizontally disposed member being selectively engageable with this retaining surface which vertically retains the member against upward movement, and prevents the roller from being actuated to roll up the curtain.

Retainer assembly for roll-up door

A roll-up strip curtain barrier apparatus is provided which provides a curtain member suspended from a support roller rotatably mounted about a door opening. The curtain member has plurality of flexible curtain-like strip panels which are adapted to span the door opening and provide an air-blocking seal. In one embodiment, the plurality of the strip panels are disposed in a plurality of rows, each row having a plurality of adjacent strip panels. The panels in one row are in abutting and overlapping relationship with the panels in the adjacent row. In one mode of operation, the flexible strip panels deflect in response to personnel and material passing through the door opening and then return to their original suspended position. In another mode of operation, the support roller may be rotated so as to wind and elevate the curtain member about the roller and create an unobstructed door opening. Reverse rotation of the support roller lowers the curtain member to the sealing position. In one embodiment, the sides of the individual strip panels taper and narrow inwardly from the top to the bottom side so that the tapered sides of adjacent strip panels form gaps therebetween. The strip panels in the adjacent row are disposed in abutting and overlapping relationship with the strip panels in the first row to cover the gaps.

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Dubuque, IA, United States of America

Garrett L Goins