Dispensing – Agitator followed by discharge assistant and/or... – Axially aligned – with axially rotary and longitudinally...
Patent
1996-03-27
1998-07-28
Kaufman, Joseph
Dispensing
Agitator followed by discharge assistant and/or...
Axially aligned, with axially rotary and longitudinally...
222235, 222386, 222405, 2224085, G01F 1100
Patent
active
057852103
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
This invention relates to a paste container and dispenser which is particularly suitable for dispensing pseudoplastic pastes, more particularly highly viscous detergent pastes of the type used in institutional laundries.
BACKGROUND OF THE INVENTION
Paste-form detergents are used in particular in institutional laundries where they have the advantages of powder-form detergents, more particularly a high active-substance content, and none of the disadvantages of liquid detergents, more particularly the water or solvent content. Disadvantages of paste-form detergents can lie in packaging and dispensing problems.
RELATED ART
German patent application DE-A-37 19 906 describes a detergent container and dispenser. The storage container for the paste-form detergent is a container with rigid outer walls and a circular or square cross-section which is equipped on one side with a displaceable, tightly closing plate (follower plate). Under the effect of its weight, the follower plate applies pressure to the surface of the paste and enables the detergent paste to be withdrawn via the dispenser which may be formed by a simple pipe and pump. As the amount of paste decreases, the follower plate slowly follows the paste level downwards. The container and dispenser described in DE-A-37 19 906 may also be equipped with a mixing unit which mixes water simultaneously introduced into the dispenser with the detergent paste and thus forms a water-containing liquid concentrate which can be delivered to the individual washing machines.
German patent application DE-A-38 26 110 also describes a detergent container and dispenser for paste-form detergents. In this case, the detergent container is cylindrical with an opening at both ends. One opening is closed by a plate which is arranged in the container and designed for displacement axially thereof. The container opening situated opposite this displaceable plate carries a releasable connecting element with which it can be fixed or coupled to the dispenser. The connected dispenser comprises a plunger which acts on the displaceable plate of the paste container and causes it to advance as the paste is removed.
Unfortunately, the dispensing systems described above are only suitable for pastes with relatively low viscosities, more particularly in the range from about 75,000 mPa.s to 90,000 mPa.s. Pastes with higher viscosities in the range from about 150,000 mPa.s to 250,000 mPa.s are difficult or even totally impossible to pump with conventional dispensing systems, for example of the type described above, with the result that complete emptying is not possible in the removal of high-viscosity pastes.
BRIEF DESCRIPTION OF THE INVENTION
Accordingly, the problem addressed by the present invention was to provide a paste container and dispenser which would even enable pastes with high viscosities under normal conditions to be continuously removed by a dispensing and transporting system and, at the same time, would achieve a high degree of residual emptying of the paste container.
The present invention relates to a paste container and dispenser consisting of a cylinder (7) open at one end, a displaceable tightly closing follower plate (2) arranged at the open end of the cylinder and a dispenser (1) for removing and transporting the paste,
A. the follower plate (2) supporting a motor and transmission system (3), on the shaft of which--projecting centrally through the follower plate (2)--a multiple-blade stirring propeller (4) is arranged in such a way that it is able to rotate freely in the paste just below the follower plate (2) and
B. the dispenser (1) being connected to the follower plate (2) outside the center thereof and above the area covered by the stirring propeller (4) and transporting the paste--optionally through a metering unit--to its point of use.
BRIEF DESCRIPTION OF THE FIGURE
The FIGURE is a diagrammatic representation in cross-section of a dispenser of the invention.
DETAILED DESCRIPTION OF THE INVENTION
The paste container and dispenser acco
REFERENCES:
patent: 2385579 (1945-09-01), King et al.
patent: 3722715 (1973-03-01), Young
patent: 3824937 (1974-07-01), Turner et al.
patent: 3951462 (1976-04-01), De Francisci
patent: 4635820 (1987-01-01), Marshall
patent: 4889644 (1989-12-01), Amberg et al.
patent: 4967810 (1990-11-01), Arashida
patent: 5078304 (1992-01-01), Schneider
patent: 5167350 (1992-12-01), Amberg et al.
patent: 5221488 (1993-06-01), Amberg et al.
Amberg Guenther
Eichner Walter
Koeppelmann Edgar
Henkel-Ecolab GmbH & Co. OHG
Jaeschke Wayne C.
Kaufman Joseph
Ortiz Daniel S.
Szoke Ernest G.
LandOfFree
Paste container and dispenser does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Paste container and dispenser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Paste container and dispenser will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-16217