US 12,320,193 B2
Roll-up door with spiral brackets
Ruiping Ouyang, Richardson, TX (US); Thomas Joseph Steckbeck, Mifflintown, PA (US); Kazuo Mita, Lewisville, TX (US); and Toru Kimura, Lewisville, TX (US)
Assigned to Overhead Door Corporation, Lewisville, TX (US)
Filed by Overhead Door Corporation, Lewisville, TX (US)
Filed on Jul. 20, 2021, as Appl. No. 17/380,942.
Application 17/380,942 is a division of application No. 16/122,730, filed on Sep. 5, 2018, granted, now 11,162,301.
Claims priority of provisional application 62/555,484, filed on Sep. 7, 2017.
Prior Publication US 2021/0348442 A1, Nov. 11, 2021
Int. Cl. E06B 9/62 (2006.01); E06B 9/06 (2006.01); E06B 9/15 (2006.01); E06B 9/17 (2006.01); E06B 9/58 (2006.01)
CPC E06B 9/17007 (2013.01) [E06B 9/0638 (2013.01); E06B 9/15 (2013.01); E06B 9/17061 (2013.01); E06B 9/581 (2013.01); E06B 9/62 (2013.01); E06B 2009/0684 (2013.01); E06B 2009/1583 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A high-speed roll-up door assembly comprising:
a plurality of sectional panels slidingly moveable between an open position and a closed position, each of the plurality of sectional panels having a roller at each end;
a track enclosing the roller, the track having a removable cover; and
wherein the roller includes a shaft that is secured to a respective sectional panel of the plurality of sectional panels via a fastener such that when the plurality of sectional panels is in the open position the fastener is exposed for removal and when the plurality of sectional panels is in the closed position the fastener is concealed by a portion of a respective adjacent sectional panel such that the fastener is inaccessible.