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US 12,546,070 B2Granted
Portable barricade and portable barricade system
AssigneeDelta Scientific Corporation
InventorsHarry D. Dickinson, David G. Dickinson, James John Burnett, Judy L. Manor
Life of this patent
Estimating the term…
Abstract
A portable barricade includes a road plate, first and second support posts extending upward from end portions of the road plate, a barricade arm extending between the first and second support posts, and a lift coupled one of the end portions of the barricade arm and a corresponding one of the first and second support posts. Actuation of the lift is configured to slide the barricade arm relative to the first and second support members between a retracted position proximate to the road plate and a deployed position distal from the road plate.
Claims18
A method of arresting a forward motion of a vehicle travelling on a surface, the method comprising:
- resting a portable barricade on said surface, wherein said barricade comprises a road plate, a barricade arm having a first end portion opposite a second end portion, a first post, and a second post, wherein the barricade arm extends between the first and second posts, wherein an actuator is coupled to the first end portion of the barricade arm for providing a force only to said first end portion for moving the barricade arm between a retracted position where said first and second end portions are adjacent the road plate to a deployed position where said first and second portions are spaced apart from the road plate, and wherein a counterweight is coupled to the second end portion of the barricade arm for aiding said moving of the barricade arm between the retracted position and the deployed position, wherein the force necessary to move said barricade arm from the retracted position toward the deployed position is solely provided by said actuator and said counterweight;
- moving the barricade arm from the retracted position adjacent to the road plate to the deployed position spaced apart from the road plate, wherein moving the barricade arm comprises actuating the actuator for sliding the barricade arm along the first and second posts, and wherein when the barricade arm is in the retracted position adjacent the road plate, a vehicle may pass over the road plate and retracted barricade arm;
- and
- wherein when in the deployed position, contacting of said barricade arm by the moving vehicle will cause said road plate to rotate and contact an undercarriage of the vehicle during the forward motion of the vehicle, lifting at least a forward end portion of the vehicle.
1 more element
A method of arresting a forward motion of a vehicle travelling on a surface, the method comprising:
- resting a portable barricade on said surface, wherein said barricade comprises a road plate, a barricade arm having a first end portion opposite a second end portion, a first post, and a second post, wherein the barricade arm extends between the first and second posts, wherein an actuator is coupled to the first end portion of the barricade arm for moving the barricade arm between a retracted position where said first and second end portions are adjacent the road plate to a deployed position where said first and second portions are spaced apart from the road plate, and wherein a counterweight is coupled to the second end portion of the barricade arm for aiding said moving of the barricade arm between the retracted position and the deployed position;
- moving the barricade arm from the retracted position adjacent to the road plate to the deployed position spaced apart from the road plate, wherein moving the barricade arm comprises actuating the actuator for sliding the barricade arm along the first and second posts, and wherein when the barricade arm is in the retracted position adjacent the road plate, a vehicle may pass over the road plate and retracted barricade arm;
- and
- wherein when in the deployed position, contacting of said barricade arm by the moving vehicle will cause said road plate to rotate and contact an undercarriage of the vehicle during the forward motion of the vehicle, lifting at least a forward end portion of the vehicle, wherein said actuator is located at the first post, wherein said counterweight is located at the second post, and wherein a counterweight is not located at the first post.
1 more element
A method of arresting a forward motion of a vehicle travelling on a surface, the method comprising:
- resting a portable barricade on said surface, wherein said barricade comprises a road plate, a barricade arm having a first end portion opposite a second end portion, a first post, and a second post, wherein the barricade arm extends between the first and second posts, wherein an actuator is translationally retained at the first post and is coupled to the first end portion of the barricade arm for moving the barricade arm between a retracted position where said first and second end portions are adjacent the road plate to a deployed position where said first and second portions are spaced apart from the road plate, and wherein a counterweight is coupled to the second end portion of the barricade arm for aiding said moving of the barricade arm between the retracted position and the deployed position;
- and
- moving the barricade arm from the retracted position adjacent to the road plate to the deployed position spaced apart from the road plate, wherein moving the barricade arm comprises actuating the actuator to extend providing actuating energy for sliding the barricade arm along the first and second posts from the retracted position toward the deployed position, and wherein when the barricade arm is in the retracted position adjacent the road plate, a vehicle may pass over the road plate and retracted barricade arm, wherein all actuating energy necessary for sliding the barricade arm with the aid of the counterweight is provided to the first end portion;
- wherein when in the deployed position, contacting of said barricade arm by the moving vehicle will cause said road plate to rotate and contact an undercarriage of the vehicle during the forward motion of the vehicle, lifting at least a forward end portion of the vehicle.
1 more element
Dependencies are inferred from the claim text.