Abstract: A system comprising a rotatable spool, an engine configured to impart torque on the spool via a drive shaft, a cord attached to the spool, and a curtain attached to the cord is disclosed. Moreover, a method comprises releasing a curtain from a hanging support, and pulling a curtain. Also disclosed is a system comprising a plurality of hangers from which a curtain is capable of being released, a spool to which a cord is attachable, an engine capable of causing the spool to be rotated, and a rim through which the cord is pulled.
Abstract: A modular crowd control barrier that is collapsible includes a rounded top rail and a rearward projecting horizontal boss with a bore and axel. The axel of one barrier connects to the respective bore of an adjacent barrier. A hinged gate with a latch and catch may pivotally connect adjacent barriers to each other.
Type:
Grant
Filed:
February 24, 2006
Date of Patent:
February 6, 2007
Assignee:
All Access Staging and Productions, Inc.