Abstract: Apparatus, methods, and systems for rotational molding of a multilayer article, e.g., an article with a sight gauge, using a mold including a primary mold portion and a secondary mold portion.

Abstract: A bracket for securing an end portion of a flexible agricultural chemical delivery tube along an end portion of an elongate rigid seed tube on a planter. The elongate bracket has a rear surface adapted to be positioned along and in contact with the front surface of the seed tube, and has a longitudinally extending row of sockets opening through its rear surface that are adapted to receive protrusions projecting above the front surface of the seed tube. The sockets are defined by surfaces adapted to engage those protrusions to retain the position of the bracket along the front surface of the seed tube. Along a front surface of the bracket are members adapted to receive and retain the end portion of the flexible chemical delivery tube.

Abstract: A support assembly supporting a spray boom assembly from a liquid supply assembly. Spaced support arms have opposite ends pivotably mounted on frames of the liquid supply assembly and the boom assembly to afford movement of the spray boom assembly between raised and lowered positions by a changeable length assembly such as a hydraulic piston, and shocks or bouncing action transmitted from the liquid supply assembly are damped by an assembly comprising an elongate shaft, an elongate tube around the shaft, resiliently elastic shock absorbing strips disposed between the shaft and the tube that with surfaces of the shaft and tube are shaped to restrict rotation of the tube around the shaft without resilient compression of the shock absorbing strips. Either the shaft or tube is fixed to the frame or the support arms, the other has an activating arm fixed to and projecting from it, which activating arm is pivotably attached to one end of the changeable length means.

Abstract: A tank with spin molded unitary polymeric walls. An upper portion of the walls have graduations indicating the amount of liquid required to fill the tank to each of the graduations, and the walls are sufficiently light transmissive to afford visual observation of the level of the liquid in the upper portion of the tank. The tank has a generally funnel shaped portion adjacent its lower end decreasing in area from its upper portion to its lower end, a liquid passage opening at its lower end, a transverse wall at said upper end, and an air passage opening adjacent its upper end. A frame is provided for supporting the tank on a horizontal surface with its upper end uppermost.

Abstract: A liquid chemical measuring system including an elongate translucent or transparent polymeric tank having an upper portion with graduations indicating the amount of liquid required to fill the tank to each of the graduations when said tank is vertically disposed, and a generally funnel shaped portion adjacent its lower end. The tank has a liquid passage opening through its lower end, and an air passage through a transverse wall at its upper end. A frame supports the tank with its upper end uppermost, a liquid valve is attached to the tank across its liquid passage opening, and an air pump is coupled to the air passage opening of the tank by a valve operated by a single lever so that it can alternatively cause vacuum or pressure in the tank, thereby allowing liquid to be drawn into the tank to measure it using the graduations and then to be forced out of the tank.

Abstract: An elongate polymeric spray shield adapted to be connected to a support frame moved over plants growing in spaced rows from the earth to temporarily enclose the plants. The spray shield has opposite arcuate side wall portions along its axis and nozzle anchor portions along each of the side wall portions that are recessed inwardly of the spray shield from the side wall portions along which they are positioned. Each nozzzle anchor portion has a generally planar anchor part having a generally centered through opening adapted to receive a liquid outlet nozzle assembly with the axis of a nozzle in the assembly oriented at a right angle to the surfaces of the anchor part and the outlet end of the nozzle adjacent the inner surface of the side wall portion oriented at a predetermined relationship relative to the side wall portions to direct spray from the nozzle in a desired pattern.

Abstract: A flow indicator that can visually indicate to an implement operator whether or not there is an equal flow rate of liquids through multiple liquid outlet lines on the implement. The flow indicator includes wall portions defining a manifold adapted to be connected in the system to receive liquid output from a pump, and transparent generally parallel closely spaced tubular members having similarly sized through openings communicating with the manifold, increasing in diameter from their inlet ends, and having outlet ends coupled to the outlet lines. Normally, liquid is pumped into the manifold and flows out the tubular members with equal flow rates so that similarly sized indicating members visible in the tubular members will be horizontally aligned. If the operator observes one indicating member out of alignment, this will indicate that one of the outlet lines is obstructed and in need of attention.

Abstract: A toy vehicle including an electronic timing mechanism with an elapsed time display that may be manually started and will be stopped via a switch when the front end of the vehicle is actuated by an impact with a vertical surface so that the time required for the vehicle to travel a predetermined distance to the vertical surface may be measured.

Abstract: A self-contained game providing an enclosed space between a base and a transparent dome, and including a plurality of freely movable objects within the space. A plurality of levers are pivotably mounted on the base and can be manually activated by players via portions of the levers accessible outside the dome so that a hammer portion of the lever will impact objects at sockets on a surface portion of the base, causing the objects to fly upwardly into the space in an attempt by the players to propel the objects into receptacles on the base. After the game is completed, the game can be inverted to return the objects from the receptacles to the surface portion of the base so that the game can be replayed.

Abstract: An upright rearwardly inclined game-piece receiving panel is carried by a panel receiving socket in a base and is movable to a vertical position by a biasing spring acting on the socket. Game-pieces applied to the panel are ejected therefrom upon the expiration of a predetermined period of time when a timer mechanism also carried by the base member releases a latch mechanism holding the socket inclined against the bias of the spring. The panel is preferably shaped like a human head. The game-pieces preferably resemble facial features and have bases shaped complementary to recesses formed in the panel at appropriate locations and are selected by the player as a component of a face by reference to a design on a card. The game is won by first selecting the appropriate game pieces and applying them to the panel to produce the prescribed composite design and then manually stopping the timer mechanism before it causes the game-pieces to be ejected from the panel.