Dispensing – With casing or support – Bracket or suspension supported
Patent
1996-02-20
1998-12-01
Kaufman, Joseph
Dispensing
With casing or support
Bracket or suspension supported
222341, B67D 506
Patent
active
058426086
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Technical Field
The present invention relates to a dispenser for liquid disinfectants, liquid surfactant products such as liquid soap, hand lotion, shower gel, shampoo, or for other liquids, with at least one supply container and at least one liquid outlet opening and with at least one pump unit being located between the supply container(s) and the respective liquid outlet opening and subjecting the liquid to pressure, and also with a housing part accepting at least the supply containers, with the dispenser being designed as a module that can be installed in a wall installation opening.
2. Prior Art
A dispenser for liquid soap and the like is known from DE 35 05 893 A1, the dispenser can be mounted in the rest room on the outside wall next to a washbasin or the like, and consists of a housing in which a supply container is provided for the liquid. A peristaltic pump is used as the metering pump for the liquid, the outlet of said pump making a transition through a hose to a handle that projects forward essentially horizontally, said handle serving as a crank lever for a mechanical drive of the peristaltic pump. Alternatively, the drive is provided with a foot-operated lever.
The simply designed mechanical drive of the peristaltic pump thus permits dispensing liquids in uniformly metered amounts.
DE 32 13 240 A1 is known as a dispenser for metered dispensing of liquid soap, with the user being obliged to place his hands near the outlet nozzle. A proximity switch then activates an electric drive for the metering pump and causes single or multiple ejection of a metered quantity of soap. The dispenser therefore requires an electrical power connection at the point where it is installed. This connection and the electronics used in the dispenser must also be given special protection against moisture to avoid a short circuit and a possible fire in the device. A dispenser of this kind must therefore be installed at a sufficient distance from water faucets.
These known devices for metered dispensing of liquid soap and the like are disadvantageous because they are mounted in a relatively large housing together with the supply container, which must be made sufficiently large for a prolonged period of use, and with the liquid pump and its drive, said housing being only surface-mountable on the tiled walls of the rest-room area. A projection is provided only rarely on tiled walls, so that the housing is accommodated out of sight in a niche. The bottom or top of the device must be freely accessible so that the crank lever mounted on the device, together with the outlet for the liquid soap or the foot-operated lever provided therein or the outlet nozzle provided therein together with a laterally mounted proximity switch, is freely accessible.
The dispenser housing is therefore mounted in a prominent location on the wall, and in the vicinity of the washbasin it takes up space that could be available for mounting other devices in the rest room. The dispenser housings made of stainless steel sheet or enameled sheet metal are thus exposed to increased contamination and aging in a wet area, and even when made of materials that are easy to care for are not often in a hygienically unobjectionable state. There is also the risk that the dispenser housing could be dented or damaged in some other way, or even torn violently off the wall on which it is mounted.
According to DE 93 06 291.5 U1 a liquid soap dispenser is already known which is designed, in combination with a square wall tile, so that it can be located behind the tile and is also removable from the wall. The tile is rotatably mounted in the dispenser frame which is installed in the wall. The upper part of the tile, which is forced into the frame during actuation, compresses a bellows that generates the pressure required to force the soap out of a container that is attached to the back of the tile and is pivotable together with the latter, while the lower part of the tile, which automatically projects outward, exposes the opening of the disp
REFERENCES:
patent: 3142415 (1964-07-01), Louchheim
patent: 3809293 (1974-05-01), Chappell
patent: 4561571 (1985-12-01), Chen
patent: 4621749 (1986-11-01), Kanfer
patent: 5421489 (1995-06-01), Holzner, Sr. et al.
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