Abstract: A slotted liner comprises a pipe having a plurality of slots extending through the pipe wall. The slots are arranged in clusters provided along the length of the pipe. In one aspect, the clusters are generally elliptical in shape.

Abstract: An automatic eaves trough downspout includes a first conduit and a second conduit. The first conduit has a coupling socket. The second conduit has a hollow cylindrical coupling body is adapted to fit in the socket to form a pivotal connection. A pair of pivot pins serve as an axle for relative pivotal movement of the first conduit and the second conduit. A torsion spring overlies at least one of the pivot pins to bias the second conduit into a substantially vertical stored position. A ratchet engagement is provided between the pivot pin and the socket of the first conduit, which permits rotational movement pin in the first direction to increase spring tension and resists rotational movement in the second direction.

Abstract: An automatic eaves trough downspout includes a first conduit and a second conduit. The first conduit has a coupling socket. The second conduit has a hollow cylindrical coupling body is adapted to fit in the socket to form a pivotal connection. A pair of pivot pins serve as an axle for relative pivotal movement of the first conduit and the second conduit. A torsion spring overlies at least one of the pivot pins to bias the second conduit into a substantially vertical stored position. A ratchet engagement is provided between the pivot pin and the socket of the first conduit, which permits rotational movement pin in the first direction to increase spring tension and resists rotational movement in the second direction.

Abstract: A system for effecting a braking force on a towed vehicle, the system including at least one braking sensor located on a towing vehicle, a control unit for communication with a braking actuator mechanism located on the apparatus towed by the towing vehicle, the system characterized in that the control unit can determine braking force sensed by the braking sensor and signal braking actuator mechanism to apply a braking force to a towed vehicle proportional to the force applied to the braking sensor as determined by the control unit.