Liquid dosing dispenser
A dispenser ( 20 ) has a container body ( 22 ), a closure valve assembly ( 24 ), and a cap. The closure valve assembly has: a seat ( 100 ) having an opening ( 122 ); a valve element ( 90 ); and a plurality of radially inwardly directed petals ( 106 ). The valve element is shiftable between: an open position depressed clear of the opening; and a closed position closing the opening. The petals support the valve element with flex spring bias toward the closed position. The cap has: a closed condition depressing the valve element to the valve element's open position; and an open condition disengaged from the valve element.
1. A dispenser ( 20 ) comprising:
a container body ( 22 );
a closure valve assembly ( 24 ) comprising:
a seat ( 100 ) having an opening ( 122 );
a valve element ( 90 ) shiftable between:
an open position depressed clear of the opening; and
a closed position closing the opening; and
a plurality of radially inwardly directed petals ( 106 ) supporting the valve element ( 90 ) with flex spring bias toward the closed position; and
a cap ( 28 ) having:
a closed condition depressing the valve element to the valve element's open position; and
an open condition disengaged from the valve element, wherein the closure valve assembly comprises a main body ( 50 ) as:
an internally threaded boss ( 52 ) receiving an externally threaded neck ( 36 ) of the container;
an externally threaded neck ( 62 ) received in an internally threaded sidewall ( 70 ) of the cap in the closed condition;
an annular wall ( 102 ) within the neck cooperating with the neck to define an annular channel; and
said plurality of petals ( 106 ) directed radially inward from the annular wall.
2. The dispenser of claim 1 wherein:
the valve element ( 90 ) is a spherical ball; and
the seat is formed as a cover secured to the main body to retain the ball.
3. The dispenser of claim 2 wherein:
the cover is snap fit across the annular wall.
4. The dispenser of claim 1 wherein:
the container body has a capacity of 0.3-1.5 liters.
5. The dispenser of claim 1 containing liquid in the container body.
6. The dispenser of claim 5 wherein:
the liquid is laundry detergent.
7. A method for using the dispenser of claim 1 comprising:
with the cap in its closed condition, orienting the dispenser so as to flow liquid from the container body through the seat opening;
moving the cap to its open condition so as to allow the valve element to shift under spring bias to its closed position, isolating a dose of the liquid; and
pouring the dose from the dispenser.
8. The method of claim 7 wherein:
the flow of liquid from the container body through the seat opening passes the liquid through gaps ( 124 ) between the petals.
9. The method of claim 7 further comprising:
between the orienting and the moving, reorienting the dispenser to a valve-up condition.
10. The method of claim 7 wherein:
the moving comprises unscrewing.
11. The method of claim 7 wherein:
the dose is 0.02-0.07 liter.
12. A method for manufacturing the dispenser ( 20 ) of claim 1 , the method comprising:
molding a valve main body ( 50 ) of the closure valve assembly ( 24 );
molding the valve element ( 90 );
molding the seat ( 100 ); and
snap fitting the seat to the valve main body over the valve element.
13. The method of claim 12 further comprising:
grinding the valve element.
14. The dispenser of claim 1 wherein:
a cover is snap fit across the annular wall.
15. The dispenser of claim 14 wherein:
the main body is a unitary plastic molding.
16. The dispenser of claim 1 wherein:
the main body is a unitary plastic molding.
17. A dispenser ( 20 ) comprising:
a container body ( 22 );
a closure valve assembly ( 24 ) comprising:
a seat ( 100 ) having an opening ( 122 );
a valve element ( 90 ) shiftable between:
an open position depressed clear of the opening; and
a closed position closing the opening; and
a plurality of radially inwardly directed petals ( 106 ) supporting the valve element ( 90 ) with flex spring bias toward the closed position; and
a cap ( 28 ) having:
a closed condition depressing the valve element to the valve element's open position; and
an open condition disengaged from the valve element, wherein the closure valve assembly comprises a main body ( 50 ) as:
an internally threaded boss ( 52 ) receiving an externally threaded neck ( 36 ) of the container;
a neck ( 62 ) engaging the cap in the closed condition;
a wall ( 102 ) within the neck cooperating with the neck to define a channel; and
said plurality of petals ( 106 ) directed radially inward from the wall.
18. The dispenser of claim 17 wherein:
the main body is a unitarily molded single piece.
19. The dispenser of claim 17 wherein:
the valve element comprises a ball.
20. The dispenser of claim 17 wherein:
a cover is snap fit across the wall.