Qualitas Manufacturing, Inc. Patent applications |
Patent application number | Title | Published |
20140231029 | Unitized Structural Frame - An improvement in a rolling shutter assembly for covering an opening of a structure defined by a top wall, a bottom wall and oppositely disposed side walls. The rolling shutter assembly includes a shutter housing, a shutter support member rotatably disposed within the shutter housing, a shutter coupled to the shutter support member, the shutter comprising a plurality of individual slats and a plurality of hinges interconnecting the slats, and a pair of side tracks. The shutter rolls between a rolled position wherein the shutter is rolled onto the shutter support member and an unrolled position wherein the shutter covers the opening and the ends of the slats are disposed within the channels of the corresponding side tracks. The improvement comprises a support frame having top, bottom and side rails mounted to the walls defining the opening with the side tracks each mounted to a corresponding one of the side rails of the support frame. The support frame reduces or eliminates the transmission of torsion loads from the shutter to the framing elements of the walls during positive and negative pressure conditions. | 08-21-2014 |
20130048231 | Base Slat Retention and Motor Triggering For Rolling Protective Shutters - The present invention is directed to a rolling protective shutter having an improved stopping mechanism that prevents the shutter from completely rolling up onto the shutter support member, and that is hidden within the shutter housing or the side tracks. The stopping mechanism may include a limit switch operatively connected to a drive motor to detect a disposition of the base slat of the shutter curtain proximate the shutter housing. The limit switch may actuate to turn off the drive motor at an appropriate position to retain the base slat within the side tracks and to prevent damage to the shutter housing due to engagement by the base slat. | 02-28-2013 |
20120273142 | Manual Drive Mechanism for Rolling Protective Shutters - The present invention is directed to a rolling protective shutter having an improved manual drive mechanism. The improved manual drive mechanism may include a hand crank pole having a female connector that demountably attaches to a male connector of the rolling protective shutter to rotate a drive shaft. The female connector may be attached to the hand crank pole by a universal joint so that the female connector may pivot relative to the hand crank pole. A resilient alignment mechanism, such as an elastomeric sleeve or coil spring, may be disposed on and engage the universal joint to axially align the female connector with the hand crank pole while allowing the female connector to pivot relative to the elongated pole section when a force is applied. | 11-01-2012 |
20120273141 | Manual Drive Mechanism for Rolling Protective Shutters - The present invention is directed to a rolling protective shutter having an improved manual drive mechanism. The improved manual drive mechanism may include a hand crank pole having a female connector that demountably attaches to a male connector of the rolling protective shutter to rotate a drive shaft. The female connector may be attached to the hand crank pole by a universal joint so that the female connector may pivot relative to the hand crank pole. A resilient alignment mechanism, such as an elastomeric sleeve or coil spring, may be disposed on and engage the universal joint to axially align the female connector with the hand crank pole while allowing the female connector to pivot relative to the elongated pole section when a force is applied. | 11-01-2012 |