Dispensing – Collapsible wall-type container – With wall-collapsing means
Patent
1994-02-10
1995-05-23
Kashnikow, Andres
Dispensing
Collapsible wall-type container
With wall-collapsing means
222105, 222209, 222494, B65D 3528
Patent
active
054173477
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a dispenser assembly for delivering a liquid or pasty product contained in a flexible bag having an automatic closure system which opens or closes, in order to deliver the product without taking in air, according to whether the product is or is not, through the flexible bag, at an adequate pressure, the flexible bag being, apart from its automatic closure system, contained in a leaktight manner in a container, the casing of which has a passage which can be closed off in order, in the event of closure of the passage which can be closed off, to be able to compress the air then trapped between the bag and the container, and thus to uniformly compress the bag in order to deliver the product.
Such a dispenser assembly has the advantage that it can be maneuvered with just one hand and that the product is protected against contamination from the environment, for example: dust or sand in the event that the container falls to the ground, water if it falls in the bathtub or in the sea, or, finally, the air, which oxidizes the products and prevents optimum preservation with minimum concentrations of chemical preservatives.
PRIOR ART
FR-A-2,389,419 describes a dispenser assembly in which the casing of the container is elastically deformable throughout; moreover, provision is made for the passage which can be closed off, of the casing, to be closed off by the finger of the user whose hand holds the casing in order to exert directly thereon the pressure necessary to deliver the product. This arrangement thus obliges the user to take care to position a finger opposite the passage which can be closed off. Moreover, the quantity of product delivered depends essentially on the force exerted by the user's hand and may even, accidentally, be quite excessive.
SUMMARY OF THE INVENTION
The object of the present invention, in particular, is to remedy these drawbacks and it proposes, in a particularly economical manner, to equip the dispenser assembly with a device arranged in order to deliver substantially the same quantity of product regardless of how the user's fingers make the maneuver.
The subject of the present invention is thus, firstly, a dispenser assembly as defined above, wherein the casing of the container comprises an element in the form of a bellows, which bellows is the only elastically deformable part of the casing of the container, the other walls of which are relatively rigid. A bellows is a known device and it is known that, upon each maneuver, it compresses the quantity of air present in the container and permits the delivery of a quantity of product; at the end of each maneuver, in order to deliver more product, it is obviously necessary to reset the bellows and, thus, there is no longer any risk of excess product flowing out; it even suffices to dimension the bellows adequately so as to obtain only the desired quantity of product and thus the dispenser assembly also acts as a metering device.
The dispenser assembly preferably also comprises a handle articulated so as to be manually maneuverable in order to compress the bellows. In fact, a bellows is a relatively fragile member and, in order to prevent premature wear of it, caused by rough handling, for example off-center maneuvers, it is preferable to impose on the user a single maneuvering direction by means of a handle articulated about a hinge.
The dispenser assembly is advantageously defined in that the said passage which can be closed off is provided on the outer wall of the bellows, and in that the said handle has, internally, opposite the passage which can be closed off, an element in relief arranged in order to close off the passage which can be closed off upon maneuvering of the handle. Thus, closure of the passage which can be closed off in order to trap the air is effected automatically and the user no longer has to take care in positioning his finger opposite the passage.
Various closing-off elements in relief can be envisaged but, advantageously, provision is made in the handle for a
REFERENCES:
patent: 2608320 (1952-08-01), Harrison, Jr.
patent: 2743038 (1956-04-01), Ferries
patent: 2777612 (1957-01-01), Bensen
patent: 2804995 (1957-09-01), Fee
patent: 3195785 (1965-07-01), Oram
patent: 3223289 (1965-12-01), Bouet
patent: 3255933 (1966-06-01), Martin
patent: 3341083 (1967-09-01), Stewart
patent: 3794247 (1974-02-01), Corsette
patent: 4087024 (1978-05-01), Martin et al.
patent: 4147278 (1979-04-01), Uhlig
patent: 4159790 (1979-07-01), Bailey
patent: 4909416 (1990-03-01), Evezich
patent: 5005737 (1991-04-01), Rohr
patent: 5012956 (1991-05-01), Stoody
"L'Oreal"
Douglas Lisa
Kashnikow Andres
LandOfFree
Dispenser for liquid or paste does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dispenser for liquid or paste, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dispenser for liquid or paste will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2135201