Patent ID: 11875712
Assignee: nan
Field: Audio-visual technology (Electrical engineering)
Classification: CPC B  G  H | IPC G  H

Claim 7:
8. A method for making a safety sign device for a vehicle, the method comprising:
coupling a hinge to a side of the vehicle;
coupling an arm to the hinge, the arm comprising
an elongate base,
an electric motor coupled to the elongate base,
an elongate housing coupled to the elongate base,
a plurality of visual indicators carried by the elongate housing, and
a connection assembly coupled between the elongate base and the elongate housing and comprising first and second elastic devices coupled to adjacent portions of the elongate base, the connection assembly being configured to permit the elongate housing to be flexible with respect to the elongate base; and

coupling a sign to the arm and being substantially parallel to the arm;
the electric motor configured to extend and retract the arm between a retracted position and an extended position.