A purging system for a multiple variety seed meter of a multi-variety planter. The purging system includes seed return valves that may be arranged for receiving seed that was removed from the seed meter. The seed return valves return the removed seed into corresponding appropriate seed storage compartments to allow a new seed variety to be delivered to the seed meter while reducing seed variety mixing in the seed meter. A pipe with a purge passage may extend from the seed meter to a purging hose that delivers the removed seed to the seed return valve(s). Each seed return valve may be a vacuum-actuated piston airlock valve assembly with a valve plunger that reciprocates to define seed collecting and releasing states of the valve.

A purging system for a multiple variety seed meter of a multi-variety planter. The purging system includes seed return valves that may be arranged for receiving seed that was removed from the seed meter. The seed return valves return the removed seed into corresponding appropriate seed storage compartments to allow a new seed variety to be delivered to the seed meter while reducing seed variety mixing in the seed meter. A pipe with a purge passage may extend from the seed meter to a purging hose that delivers the removed seed to the seed return valve(s). Each seed return valve may be a vacuum-actuated piston airlock valve assembly with a valve plunger that reciprocates to define seed collecting and releasing states of the valve.

In one respect, the invention is an improved valve block design having minimal or no deadlegs that improves the efficiency of a system purge process. In another respect, the invention is a system incorporating said improved valve block design.

The invention is a gas vent valve (10) for a gas pressure regulator (1), comprising: a tubular body (11) developed between two opposite openings (11a, 11b); a shutter body (12) biased towards a position in which a first opening (11a) of the tubular body (11) is closed and movable from the closed position towards an open position for opening the first opening (11a) due to the effect of a pressure acting from the outside of the tubular body (11) through the first opening (11a); constraining means (13) configured so as to prevent the movement of the shutter body (12) from the closed position towards the open position when the ambient temperature exceeds a predefined value.

The invention is a gas vent valve (10) for a gas pressure regulator (1), comprising: a tubular body (11) developed between two opposite openings (11a, 11b); a shutter body (12) biased towards a position in which a first opening (11a) of the tubular body (11) is closed and movable from the closed position towards an open position for opening the first opening (11a) due to the effect of a pressure acting from the outside of the tubular body (11) through the first opening (11a); constraining means (13) configured so as to prevent the movement of the shutter body (12) from the closed position towards the open position when the ambient temperature exceeds a predefined value.

The invention relates to a drainage connector (1) having a cup-shaped housing (2) which comprises a housing base (3) and a housing wall (4). A connection geometry (5) is arranged on the outside on the housing wall (4) for inserting into a container opening, wherein an inlet pipe (9) of an inlet side (7) is guided to an outlet side (8) through the housing base (3) and an annular collecting chamber (10) is formed between the inlet pipe (9) and the housing wall (4). In order to discharge denser fluid which can accumulate in the collecting chamber, the housing (2) has a discharge channel (11), which leads from the collecting chamber (10) to the outlet side (8) and can be closed from the outlet side (8). The drainage connector is intended to be producible in a cost-effective manner at low cost and to have a low mass. For this purpose, the inlet pipe (9) on the outlet side (8) merges into an outlet pipe (13) which has a closing element (16) that can be moved between an open position and a closed position, wherein the housing (2) comprising the connection geometry (5), the inlet pipe (9) and the outlet pipe (13) is formed from plastic as a single piece.

The invention relates to a drainage connector (1) having a cup-shaped housing (2) which comprises a housing base (3) and a housing wall (4). A connection geometry (5) is arranged on the outside on the housing wall (4) for inserting into a container opening, wherein an inlet pipe (9) of an inlet side (7) is guided to an outlet side (8) through the housing base (3) and an annular collecting chamber (10) is formed between the inlet pipe (9) and the housing wall (4). In order to discharge denser fluid which can accumulate in the collecting chamber, the housing (2) has a discharge channel (11), which leads from the collecting chamber (10) to the outlet side (8) and can be closed from the outlet side (8). The drainage connector is intended to be producible in a cost-effective manner at low cost and to have a low mass. For this purpose, the inlet pipe (9) on the outlet side (8) merges into an outlet pipe (13) which has a closing element (16) that can be moved between an open position and a closed position, wherein the housing (2) comprising the connection geometry (5), the inlet pipe (9) and the outlet pipe (13) is formed from plastic as a single piece.

A tap (1) is disclosed for delivering liquids, particularly for delivering high- and medium-density liquids from rigid vessels, comprising: a body (3); stem means (9); and elastic actuating means (11) of the stem means (9); air inlet/outlet means (13, 25, 28) in the body (3) and inside the vessel; valve means (7) for passing air; non-return valve means (26) placed between the air inlet and outlet means (13, 25, 28) and the vessel interior and adapted to be guided and driven by the pressure difference between outside the tap (1) and inside the vessel; anti-counterfeiting and protecting means (A); supporting means (E); and an integrated glass (D).

A tap (1) is disclosed for delivering liquids, particularly for delivering high- and medium-density liquids from rigid vessels, comprising: a body (3); stem means (9); and elastic actuating means (11) of the stem means (9); air inlet/outlet means (13, 25, 28) in the body (3) and inside the vessel; valve means (7) for passing air; non-return valve means (26) placed between the air inlet and outlet means (13, 25, 28) and the vessel interior and adapted to be guided and driven by the pressure difference between outside the tap (1) and inside the vessel; anti-counterfeiting and protecting means (A); supporting means (E); and an integrated glass (D).

A dispenser for delivering a liquid from a supply bottle is disclosed. The dispenser has a base with a base foot. A tubular support is attached to the base foot. The tubular support extends vertically from the base foot. A rim is attached to the tubular support. The rim extends horizontally from the tubular support at a location above the base foot. The rim is vertically aligned with the base foot. A removable bottle collar engages with the rim. The removable bottle collar is adapted to engage and support the supply bottle inverted and positioned within the rim. The removable bottle collar has a center aperture where a mouth of the supply bottle extends there through.