Measured quantity liquid dispenser

Dispensing – With lock or fastening seal – Inhibiting operation of flow controller or closure

Reexamination Certificate

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Details

C222S158000, C222S205000, C222S450000

Reexamination Certificate

active

06244470

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to the field of liquid dispensers, and more particularly to a liquid dispenser that dispenses a predetermined volume of liquid.
2. Description of the Related Art
As can be seen by reference to the following U.S. Pat. Nos. 2,282,110; 3,197,086; 4,180,106; and 4,427,041 the prior art is replete with myriad and diverse liquid dispensers.
While all of the aforementioned prior art constructions are more than adequate for the basic purpose for which they have been specifically designed, they are uniformly deficient with respect to their failure to provide a simple, efficient and practical measured quantity liquid dispenser.
As a consequence of the foregoing situation, there has existed a need for a new and improved measured quantity liquid dispenser and the provision of such a construction is a stated objective of the present invention.
SUMMARY OF THE INVENTION
Briefly stated, the present invention provides a measured quantity liquid dispenser including a liquid supply container and an attached liquid dispensing chamber. The dispensing chamber has a hinged lid with a locking ledge. A slide plate is moveable between a first position where flow of liquid between the supply container and the dispensing chamber is prevented and the lid of the dispensing chamber is unlocked, and a second position where flow is permitted between the supply container and the dispensing chamber and the lid of the dispensing chamber is locked. The liquid dispenser is inverted with the slide plate moved to the second position to refill the dispensing chamber. The dispenser is especially useful to limit a child's use of a liquid composition such as mouthwash or shampoo.


REFERENCES:
patent: 1384687 (1921-07-01), Bushell et al.
patent: 2282110 (1942-05-01), Angell
patent: 2339644 (1944-01-01), Lucas
patent: 2416811 (1947-03-01), Bailey
patent: 3141579 (1964-07-01), Medlock
patent: 3197086 (1965-07-01), Raddysh
patent: 3209961 (1965-10-01), Wassell
patent: 4157768 (1979-06-01), Britt
patent: 4180106 (1979-12-01), Coetzee
patent: 4427041 (1984-01-01), Coetzee
patent: 5186367 (1993-02-01), Hickerson
patent: 6006952 (1999-12-01), Lucas
patent: 2 630 003 (1988-04-01), None

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