Dispensing – Resilient wall – Fluid pressure generating pump or pulsator and/or removable...
Patent
1996-11-12
1998-12-08
Kaufman, Joseph A.
Dispensing
Resilient wall
Fluid pressure generating pump or pulsator and/or removable...
222213, 222494, B65D 3700
Patent
active
058458174
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a self-closing dispensing device which enables viscous or powder substances, such as liquid foodstuffs of different kinds, such as fruit juice, cooking oil, soya, mustard, mayonnaise, ketchup, chemical-technical products, such as glue, furniture oil, shoe cream, dishwashing agents or medicaments in the form of creams, pastes, powder or liquid substances, to be dispensed from a container in metered quantities, said self-closing device including a rigid, open channel or cup-shaped first main part having a channel-shaped outlet or dispensing opening, and a bowl-shaped or channel-like second main part which is made of a resilient material and whose shape is complementary to the shape of the first main part and which is intended to be joined to said first main part to form a closed dispensing container, wherein the second main part is also provided with a resilient closure part which is complementary to the outlet part of said first main part and lies resiliently against said outlet opening.
DESCRIPTION OF THE BACKGROUND ART
Many different types of self-closing devices for dispensing viscous substances from different types of containers are known to the art. These devices are often technically complicated and difficult, and therewith expensive to manufacture, or are of simple design and have a short effective life.
Examples of known devices of this nature are described and illustrated in SE B 465556, DK B 151767, DE B 1917391 and U.S. Pat. No. 5,099,885. SE B 465556 discloses a dosage pump having an inlet valve and an outlet valve. The opening and closing of said valves depends entirely on the internal pressure in the device.
BRIEF DISCLOSURE OF THE INVENTIVE CONCEPT
An object of the present invention is to provide a self-closing device for dispensing container-carried substances which is not encumbered with the drawbacks and disadvantages of known devices of this kind.
To achieve the objects and in accordance with the purpose of the invention, as embodied and broadly described herein the dispensing device of this invention comprises a rigid first main part having side walls and formed in the shape of an open channel and having at one end a channel-shaped dispensing opening, and a second main part which is formed in the shape of a channel and comprised of a resilient material and having a shape complementary to the first main part so that the first main part and the second main part can be joined together to form a closed dispensing container, the second main part having a closure part which is complementary to the dispensing opening of the first main part and which lies resiliently against the dispensing opening at an angle thereto, the resilient end-wall which contacts the side walls of the first main part of two places located inwardly of the dispensing opening, and the closure wall which is formed integrally with the resilient end-wall and, in a non-assembled state, is located essentially in a plane with the end-wall and having a length which is greater than the depth of the open channel such that, in an assembled state, the closure wall constitutes the closure, the end-wall having a material thickness which is greater than the material thickness of the second main part other than an end-wall such that during operation said second main part will be deformed elastically in the vicinity of the end-wall and to a greater extent than the end-wall whereby pressure applied to the end-wall will cause the wall to pivot at the two places against a spring force that derives from the deformation of the second main part and the closure to swing away from the dispensing opening of the first main part.
In accordance with the inventive concept, there is provided an easily handled device which can be readily fitted to different types of containers with the aid of different attachment methods, which can be manufactured easily, which has a relatively long effective life, and which is flexible in many respects.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now b
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patent: 4927061 (1990-05-01), Leigh et al.
patent: 5099885 (1992-03-01), Nilsson
patent: 5190190 (1993-03-01), Fudalla
PCT International Search Report dated Jun. 27, 1995 (4 pages).
Cenova AB
Kaufman Joseph A.
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