US 12,264,445 B2
Method for actuating a barrier
Matthew Owens, Glendale, CA (US)
Assigned to Delta Scientific Corporation, Palmdale, CA (US)
Filed by Delta Scientific Corporation, Palmdale, CA (US)
Filed on Mar. 22, 2024, as Appl. No. 18/614,543.
Application 18/352,908 is a division of application No. 17/009,666, filed on Sep. 1, 2020, granted, now 11,725,354, issued on Aug. 15, 2023.
Application 18/614,543 is a continuation of application No. 18/352,908, filed on Jul. 14, 2023, granted, now 11,976,428.
Prior Publication US 2024/0229384 A1, Jul. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. E01F 13/08 (2006.01); F16H 21/54 (2006.01)
CPC E01F 13/08 (2013.01) [F16H 21/54 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of actuating a rotatable component of a barricade between a stowed configuration and a deployed configuration, the method comprising:
pulling, with an actuator mechanism comprising an actuator and a linkage, a rear end portion of the rotatable component to move the rotatable component into the deployed configuration; and
moving the rear end portion of the rotatable component upward to move the rotatable component into the stowed configuration, wherein a difference when pulling between a torque supplied to the rotatable component by the actuator mechanism and a gravitational torque acting on the rotatable component is greater when the rotatable component is in the stowed configuration than when the rotatable component is in an intermediate configuration between the stowed configuration and the deployed configuration.