Media dispenser with dosing stroke limiter

Dispensing – With discharge assistant – With movable nozzle interconnected therewith

Patent

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Details

222386, B65D 8854

Patent

active

054272807

DESCRIPTION:

BRIEF SUMMARY
FIELD OF THE INVENTION

The invention relates to a discharge apparatus for flowable media, which can be gaseous or slightly volatile, liquid or pasty, pulverulent or the like. According to the invention, it can have at least one manually operable pump and a discharge opening connected to its pump chamber by means of an outlet channel, such as an atomizing nozzle, so that by manual operation an easy discharge of at least one predetermined medium quantity is ensured.


BACKGROUND OF THE INVENTION

The invention is based on the problem of avoiding the disadvantages of known solutions and in particular providing a manually operable discharge apparatus with which, in directly succeeding manner, two or more predetermined medium quantities can be discharged, preferably through the same discharge opening and by operating the same handles.


SUMMARY OF THE INVENTION

According to the invention means are provided in order to so limit at least one partial stroke at its stroke end that it is possible to switch to a further extending partial stroke. The preferably outwardly tightly sealed, inlet-free pump chamber stores the entire medium quantity to be discharged and is emptied in the partial strokes without refilling.
For limiting stroke to a partial stroke, it is possible to provide an arresting device with stops for the components that are slidable against one another. In addition, one of these components can, at the end of its partial stroke and before reaching the pump stroke end position, assume a position with respect to the other component such that, without engaging around, it could not, or could only be very difficulty, further operated to the end position. If the handle of the first-mentioned component is formed by the cross-member of a clip or the end wall of a cap, then the latter can be operated by a thumb positioned roughly radially thereto until it terminates roughly flush with an associated casing end of the other component. For a further actuation or stroke, in which the handle of one component is completely flush in the other, it is necessary to engage the thumb into one of the components that it is positioned roughly axially to the actuation direction.
The arresting means or device is appropriately provided between two casing parts, whereof at least one is the lowerable, substantially dimensionally stable part. This part preferably forms a substantially completely closed outer casing for the complete discharge apparatus, or at least the pump. A connection piece-like or similar discharge extension which has the discharge opening for the apparatus alone optionally projects from this casing. The layer of the two casing parts is appropriately connected or substantially in one piece with the discharge extension piece.
The arresting means can be provided in space-saving, easily fittable manner in the vicinity of a lower end of the discharge apparatus, such as in the discharge position behind the pump chamber end facing the discharge opening. Furthermore, for passing from one partial stroke to the next, it is possible to provide a changeover or sequence control, e.g. in the manner of a changeover of a multicolored writing implement operable by means of a single pushbutton, so that the pump is not returned to the starting position between two partial stokes. If it is returned to said starting position, then it can be advantageously used for sucking empty the outlet channel and optionally for sucking air into the pump chamber. However, it is also conceivable, despite the return of the components or the handles into the starting position, to prevent a return of the pump into the starting position by the provision of a type of freewheel.
The pump is preferably constructed as a thrust piston pump with a simple, dimensionally stable storage or cylindrical container, whose jacket is in one piece with its bottom. If the cylindrical container is inserted in stop-limited manner in a sliding guide of one component whose friction compared with the container is similar than that of the pump piston or a component connec

REFERENCES:
patent: 1926367 (1933-09-01), Booth
patent: 3128916 (1964-04-01), Picot
patent: 3279654 (1966-10-01), Pierick
patent: 4017007 (1977-04-01), Riccio
patent: 4061254 (1977-12-01), Nilson
patent: 4074831 (1978-02-01), Roach
patent: 4175704 (1979-11-01), Cohen
patent: 4433799 (1984-02-01), Corsette
patent: 4612010 (1986-09-01), Hamacher et al.
patent: 4871092 (1989-10-01), Maerte
patent: 4921142 (1990-05-01), Graf et al.
patent: 4946069 (1990-08-01), Fuchs
patent: 4962868 (1990-10-01), Borchard
patent: 5257726 (1993-11-01), Graf et al.

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