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4967results about "Surveying instruments" patented technology

Trailer hitch alignment guide

An apparatus for aligning a trailer hitch and receiver includes an elongated channel or tube defining an angle, such that when the trailer is tilted back for hitching, the upper tube is substantially vertically aligned. A rubber tipped rod extends from the lower tube and contacts the vehicle when the vehicle draws near the trailer. As the rod is pushed into the lower tube, a connecting rod drives an actuator or indicating rod upwards. A calibration tube is slid over the upper tube, and is aligned along the upper tube to expose a brightly colored painted region on the indicating rod at the point where the receiver and hitch are aligned one above the other. Alternatively, the calibration tube moves a series of switches up or down, whereby the actuator is pushed by the rod to contact the switches successively to indicate the approach to and arrival at a hitching position, by the illumination of electric lights, and or by activation of an audible signal. The calibration rod may alternatively slide on the lower tube, wherein the contact rod creates or activates electrical connections within the calibration tube. The apparatus may further be incorporated into the trailer frame, before or after manufacturing. One or more of the apparatus may be placed near the rear of the trailer to aid lateral alignment, or to gauge the distance of the trailer to an object behind the trailer, either before or after hitching.
Owner:BEAREY DALE

Trailer hitch alignment guide

An apparatus for aligning a trailer hitch and receiver includes an elongated channel or tube defining an angle, such that when the trailer is tilted back for hitching, the upper tube is substantially vertically aligned. A rubber tipped rod extends from the lower tube and contacts the vehicle when the vehicle draws near the trailer. As the rod is pushed into the lower tube, a connecting rod drives an actuator or indicating rod upwards. A calibration tube is slid over the upper tube, and is aligned along the upper tube to expose a brightly colored painted region on the indicating rod at the point where the receiver and hitch are aligned one above the other. Alternatively, the calibration tube moves a series of switches up or down, whereby the actuator is pushed by the rod to contact the switches successively to indicate the approach to and arrival at a hitching position, by the illumination of electric lights, and or by activation of an audible signal. The calibration rod may alternatively slide on the lower tube, wherein the contact rod creates or activates electrical connections within the calibration tube. The apparatus may further be incorporated into the trailer frame, before or after manufacturing. One or more of the apparatus may be placed near the rear of the trailer to aid lateral alignment, or to gauge the distance of the trailer to an object behind the trailer, either before or after hitching.
Owner:BEAREY DALE

Operator guiding system

A base station is installed in a predetermined area where a large number of target points are studded around the station. When the operator moves a mobile station around the base station, display means is provided for both or either of the base station that guides the operator and the mobile station, and a display screen of the display means displays 2 kinds of a Forward (foreground) mode and a Back (background) mode. In the Forward (foreground) mode, the display screen of the display means displays a landscape in a forward direction (opposite direction to the mobile station by 180° when seen from the base station) of the operator (mobile station) when the operator sees the base station from the current position of the mobile station, or from the next target point if the operator reaches the next target point. In the Back (backward) mode, the display screen of the display means displays the landscape in a backward direction (direction of the operator and the mobile station when seen from the base station) of the operator (mobile station) when the operator sees the base station from the current position of the mobile station, or from the next target point if the operator reaches the next target point. The relationship between the mobile station and the next target point is displayed on an imaginary landscape in an imaginary manner so that the operator can see the direction and distance for movement.
Owner:KK TOPCON
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