Dispensing – With discharge assistant – With movable nozzle interconnected therewith
Patent
1996-04-11
2000-06-13
Bomberg, Kenneth
Dispensing
With discharge assistant
With movable nozzle interconnected therewith
2223219, 222341, B67D 542
Patent
active
060738146
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a discharge apparatus for flowable and/or other media which e.g. before or during the discharge procedure may be gaseous, liquid, pasty and/or powderlike. Discharge may be of only a single media component or separate components simultaneously via separate discharge paths such that their start of discharge and/or their end of discharge is delayed with respect to each other.
SUMMARY OF THE INVENTION
2. Description of Related Art
The discharge apparatus comprises according to the invention at least one working member, such as a resilient element, an integral working spring or the like, which during the work, e.g. the discharge work, of the apparatus is tensioned and released and/or may cause other functions. Such functions may be control movements, return movements, closing movements, abutment functions, sliding guidance or the like. Expediently the discharge apparatus or the working member in each case is made exclusively of plastic or non-metallic materials which may be copolymerisates such as polyethylene, polypropylene or other thermoplastics, so that the component concerned is to be produced as a molding.
Furthermore, it is intended that the discharge apparatus, which is to be gripped, freely carried and simultaneously actuated single-handedly, discharges or thereby pulverizes the medium over the major part of its actuating path, particularly directly after at least partial closing of an inlet. The minimum tension of the spring in the starting and resting condition of the discharge apparatus lies preferably above 2 to 5 N and below 10 or 8 N, the tension at the start of discharge or on closing the inlet being above 10 or 15 N and below 30 or 25 N and the maximum tension at the end of the discharge procedure being above 40 or 50 N and below 100 or 80 N, respectively. The discharge apparatus may be configured very small, namely as regards its surfaces coming into contact with the media have a maximum width of 30, 20 or roughly 10 mm, whilst its length amounts to a maximum of 50 or 40 mm respectively. This length relates e.g. to the spacing between the inner bottom of a pressure space and the outer end of an actuating handle for a discharge apparatus which is to be inserted by the inner end through the bottleneck into a small bottle. The discharge apparatus is suitable for very small discharge volumes of each complete, abutment-limited discharge procedure, namely volumes of less than one, one half or three tenths of a centiliter or milliliter. The manual actuating force for a discharge procedure may then lie below 200 or 100 N respectively.
The invention is based further on the object of creating a discharge apparatus for media in which disadvantages of known configurations are avoided and/or advantages and effects of the kind described are achieved. In particular, it is intended to ensure, where applicable, a simple manufacture and/or a fully-automatic assembly and/or a very low number of components or a high functional safety even at the most varied of temperatures.
The working spring in each case may include working sections which are expediently lined up one against the other in the longitudinal direction and have for each respective length unit a differing stiffness or springiness. The working section in each case may be a resiliently deformable spring section, a non-resilient intermediate section, a non-resilient end section and/or a resilient end section. Each respective non-resilient section is expediently affected not by closely or contacting juxtaposed spring windings, but by a corresponding change in cross-section or other stiffening configurations of the working spring, so that each respective spring section may have substantially the same spring effect over its full length and up to one or both ends for each respective length unit or spring winding. Each respective spring winding forms advantageously full cross sections which in directions located transversely to each other have greatly differing extensions, e.g.
REFERENCES:
patent: 3235135 (1966-02-01), Robert et al.
patent: 4260079 (1981-04-01), Cary et al.
patent: 5205441 (1993-04-01), Andris
patent: 5238156 (1993-08-01), Andris
patent: 5265771 (1993-11-01), Meshberg
patent: 5303867 (1994-04-01), Peterson
patent: 5316198 (1994-05-01), Fuchs et al.
Weber, Anton: Die Kunstsoffe und das Automobil. In: ATZ Automobiltechnische Zeitschrift 97, 1995, 9,S.589-592.
JP 5-229578 A., In: Patents Abstracts of Japan, M-1528, Dec. 14, 1993, vol. 17, No. 682.
Bomberg Kenneth
Teoranta Caideil M.P.
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