Valve Assembly for a Pump

Abstract

A pump includes a bottle, an air-pumping device, a cover, a valve assembly and a buoyant. The air-pumping device is operable to pump air out of the bottle and therefore pump liquid into the bottle. The cover includes an opening and a channel. The bottle is in communication with the exterior thereof via the opening and in communication with the air-pumping device via the channel when the cover is attached to the bottle and the air-pumping device. The valve assembly is movable in the bottle between a first position for releasing the channel as the pump is in an upright position and a second position for blocking the channel as the pump is in a tilted position. The buoyant floats on the liquid in the bottle and moves the valve assembly into the second position as the bottle is almost full of the liquid in the upright position.

1 . A pump including:
 a bottle;   an air-pumping device for pumping air out of the bottle and therefore pumping liquid into the bottle;   a cover including an opening and a channel, wherein the bottle is in communication with the exterior thereof via the opening and in communication with the air-pumping device via the channel when the cover is attached to the bottle and the air-pumping device;   a valve assembly movable in the bottle between a first position for releasing the channel as the pump is in an upright position and a second position for blocking the channel as the pump is in a tilted position; and   a buoyant for floating on the liquid in the bottle and moving the valve assembly into the second position as the bottle is almost full of the liquid in the upright position.   
     
     
         2 . The pump in accordance with  claim 1 , wherein the valve assembly includes a valve movably placed in the bottle to block the channel as the valve assembly is in the second position. 
     
     
         3 . The pump in accordance with  claim 2 , wherein the valve is a ball. 
     
     
         4 . The pump in accordance with  claim 2 , wherein the valve is a tablet. 
     
     
         5 . The pump in accordance with  claim 2 , wherein the valve is a rod. 
     
     
         6 . The pump in accordance with  claim 5 , wherein the valve includes at least one rounded end. 
     
     
         7 . The pump in accordance with  claim 2 , wherein the valve is a cone. 
     
     
         8 . The pump in accordance with  claim 7 , wherein the rod includes a rounded, smaller end and a flat, larger end. 
     
     
         9 . The pump in accordance with  claim 2 , wherein the valve assembly includes a tubular guiding element attached to the cover so that the tubular guiding element extends toward the cover as the tubular guiding element extends upward, wherein the valve is quickly moves in the tubular guiding element into the second position to block the channel before the liquid is poured from the pump through the opening. 
     
     
         10 . The pump in accordance with  claim 9 , wherein the valve assembly includes an annular sealing element fit in the channel, wherein the valve abuts the annular sealing element to block the channel in the second position of the valve assembly. 
     
     
         11 . The pump in accordance with  claim 9 , wherein the valve assembly includes a plate formed at an upper end of the tubular guiding element and attached to the cover. 
     
     
         12 . The pump in accordance with  claim 9 , wherein the valve assembly includes a pusher formed with an upper section movably inserted in the tubular guiding element to contact the valve and a lower section placed out of the tubular guiding element to contact the buoyant. 
     
     
         13 . The pump in accordance with  claim 12 , wherein the valve assembly includes a screw inserted in the upper section of the pusher, wherein the tubular guiding element includes at least one slot for receiving at least one end of the screw. 
     
     
         14 . The pump in accordance with  claim 12 , wherein the valve assembly includes a pin inserted in the upper section of the pusher, wherein the tubular guiding element includes at least one slot for receiving at least one end of the pin. 
     
     
         15 . The pump in accordance with  claim 12 , wherein the valve assembly includes a pin inserted in the upper section of the pusher, wherein the tubular guiding element includes at least one groove for receiving at least one end of the pin. 
     
     
         16 . The pump in accordance with  claim 15 , wherein the valve assembly includes a C-clip fit in the tubular guiding element to keep the end of the pin in the groove. 
     
     
         17 . The pump in accordance with  claim 12 , wherein the valve assembly includes a pin transversely inserted in the tubular guiding element, wherein the upper section of the pusher includes at least one slot for receiving the pin. 
     
     
         18 . The pump in accordance with  claim 10 , wherein there is a sharp angle between the upper and lower sections of the pusher. 
     
     
         19 . The pump in accordance with  claim 10 , wherein the valve assembly includes at least one weight placed between the valve and the pusher.