Abstract: A camera can have a mounting socket configured to connect to a photodetector switch port of a streetlight for mechanically supporting a housing, a power supply receiving power from the port and an optical image sensor and lens arrangement mounted in the camera housing. A camera can have an optical image sensor and lens arrangement, a memory unit to store optical image data and a microcontroller unit to process optical image data. The camera can use a wireless network communications interface to communicate the optical image data by forming a network among similar wireless network communications interfaces from neighboring streetlight cameras.

Abstract: A camera can have a mounting socket configured to connect to a photodetector switch port of a streetlight for mechanically supporting a housing, a power supply receiving power from the port and an optical image sensor and lens arrangement mounted in the camera housing. A camera can have an optical image sensor and lens arrangement, a memory unit to store optical image data and a microcontroller unit to process optical image data. The camera can use a wireless network communications interface to communicate the optical image data by forming a network among similar wireless network communications interfaces from neighboring streetlight cameras.

Abstract: The invention relates to an actuator for heavy machinery including a cylinder, a piston and a protective sleeve. The cylinder forms a chamber for receiving a fluid, and includes an external flange extending radially and outwardly from the cylinder. The piston is operable to translate axially relative to the cylinder between an open position and a closed position, and includes a first extremity positioned outside the cylinder and a second extremity positioned within the chamber. The second extremity sealingly engages the chamber. The protective sleeve protects the piston in the open position, which is movable with the piston and operable to overlap at least a portion of the cylinder in the closed position. The protective sleeve includes an internal flange extending radially and inwardly from the protective sleeve and is positioned for abutting the external flange when the piston is in the open position. This abutment limits the axial translation of the piston out of the cylinder.

Abstract: The invention relates to an actuator for heavy machinery including a cylinder, a piston and a protective sleeve. The cylinder forms a chamber for receiving a fluid, and includes an external flange extending radially and outwardly from the cylinder. The piston is operable to translate axially relative to the cylinder between an open position and a closed position, and includes a first extremity positioned outside the cylinder and a second extremity positioned within the chamber. The second extremity sealingly engages the chamber. The protective sleeve protects the piston in the open position, which is movable with the piston and operable to overlap at least a portion of the cylinder in the closed position. The protective sleeve includes an internal flange extending radially and inwardly from the protective sleeve and is positioned for abutting the external flange when the piston is in the open position. This abutment limits the axial translation of the piston out of the cylinder.