Coating apparatus – Projection or spray type – With projector heating – cleaning or conditioning
Reexamination Certificate
2001-02-08
2003-09-02
Crispino, Richard (Department: 1734)
Coating apparatus
Projection or spray type
With projector heating, cleaning or conditioning
C118S325000, C427S008000, C427S209000, C222S491000
Reexamination Certificate
active
06613144
ABSTRACT:
The present invention refers to a pump-free dosing device for the application of a cleaning and/or care emulsion to paper, hygienic towels, cotton balls or pads and the like for personal hygiene, body therapy or domestic hygiene.
The cleaning action of ordinary dry paper is not at all times satisfactory. The manifold need for better and additional cleaning is often met by the known moistened cleaning towels.
This type of additional cleaning, however, has diverse disadvantages. The manipulation involving a closed container is mostly somewhat cumbersome. Moreover, the moistened towels are relatively expensive and rapidly dry up. In addition, nonwoven cellulose fabric towels often contain preservatives from nonwoven fabric production which may provoke allergies, particularly in tender baby skin. Besides, the nonwoven fabric towels may clog the sewers and in most cases are hard to decompose. Also, the fragrant substances contained in the ready-wipe towels may provoke allergies, and substances that compromise the protective functions of the skin are utilized to prevent drying.
Devices have already been proposed which dispense moistened cleaning towels in toilets on demand. Thus, WO 93/04622 describes a spray device that moistens the paper before it is withdrawn. This device is mounted above the roll of paper and is actuated by a lever functionally connected with a metering pump. A technically demanding dispenser for cleaning towels is described in WO 98/04177, where the paper is advanced by motor-driven rollers and the liquid is applied by a pump-driven spray nozzle head actuated by a motor-driven eccentric. In WO 93/22961 a moistening device fixed outside the roll case is proposed where the paper is first withdrawn, then the moistening occurs by lifting of a simple valve at the withdrawal unit. These devices require either a pump or a valve for moistening of the paper, and the liquid is applied by spraying.
It is the aim of the present invention, to the contrary, to directly equip a withdrawal device for hygienic towels, cotton balls and the like, essentially of the usual design, with an additional simple, pumpless dosing or metering device providing a better possibility for cleaning and/or care, and applicable in particular for viscous emulsions.
Withdrawal devices envisaged in this sense are primarily toilet paper holders. Beyond that this term also encompasses holders for other wiping aids such as rolls of kitchen towels or other cleaning and/or care towels or papers in the form of rolls, boxes for piles of paper or fabric towels that could be doubled or folded, boxes or cups for cotton balls or cotton pads, as well as other supply containers of the same or similar kind for the withdrawal of wiping aids appropriate for the application of flowable, and more particularly non-sprayable media to surfaces. Preferred media are creamlike emulsions or gels, particularly those for body care, personal hygiene and/or body therapy.
In other applications such as cleaning, polishing and/or lubricating of the surfaces of objects of all kinds, particularly those with preferably smooth metal, plastic, wood or glass surfaces, different media, always flowable and preferably viscous, which are available, either directly as the corresponding cleaners, polishes and/or lubricants or at least contain these agents, are utilized as the application may demand.
The withdrawal device preferably comprises a cover that can be raised or detached, or a lid of the same kind, or can be fitted with such a cover or lid. In addition the withdrawal device is preferably suitable for wall mounting, but within the scope of the present invention this term shall also be understood as including floor models and transportable models of paper holders, boxes and other of the above-mentioned supply containers.
According to the invention, this aim is achieved by mounting at the cover of such a withdrawal device, a dispensing container so built and oriented that by pressing or squeezing of the dispensing container or of a region thereof, a medium, preferably viscous, for instance a cleaning and/or care emulsion, can be applied to the paper, the hygienic towels, cotton balls, cotton pas and the like.
Features of the invention that should be mentioned as advantages, apart from its simple operation, are particularly the following: withdrawal devices of traditional design can be used; the dispensing container either constitutes itself the cover or is directly mounted at the cover of the withdrawal device; it proves to be a significant advantage in the latter case, moreover, that the dispensing container when mounted beneath the cover is practically invisible in its service condition, apart of course from that region designated for triggering a dosage by pressing; the dispensing container preferably can be exchanged and, when this is done, is readily mounted to and detached from the cover; it can be manufactured at an advantageous price. By simply pressing on a region of the dispensing container, for instance a cleaning cream or care cream for different needs such as deodorizing, cooling, against burning, itching etc., but also for therapeutic treatments of hemorrhoids, fistulas or anal fissures for instance can be dispensed onto a desired sheet of paper or hygienic towel or a cotton ball or pad. Particularly in the case of paper of inferior quality such as toilet paper made of recycled paper, the cream will prevent irritations of the skin in the anal region caused by contact allergens contained in the paper. Moreover, the targeted, spotlike application of a liquid or cream to a wiping aid such as a sheet of paper is more economic than a wide-area distribution thereon, and in the instance of paper has in addition a softening effect. Also, the disposal problems known from the use of fabric towels such as nonwoven fabric towels do not arise when using the dosage device according to the invention in combination with paper towels.
The withdrawal device as a rule is a paper roll holder of common design such as the ones known for toilet paper or paper towels. However, it is also possible to arrange the paper supply as a pile, particularly of individual sheets, or folded, doubled and perforated. Moreover, apart from paper, other materials suitable for the uptake of cream such as cotton or textile fabrics can be envisaged.
Dosage device for dispensing the emulsion is a dispensing container which at least in the region intended for pressure application is made of material that is elastic to compression or bending or can be creased. The dispensing container can be mounted beneath or above the cover for the paper, the fabric towels or the cotton pads. In another embodiment, the dispensing container itself is formed as the cover and mounted directly on the wall bracket of the withdrawal device, for instance via a hinge. In the case of boxes for piles of papers or cotton pads, this fixation usually occurs at the upper edge of the back wall.
The dispensing container can basically be fixed in a permanent way at the withdrawal device, and the cleaning an/or care product can be refurnished through a sealable opening, but it is preferred to mount the container so that it can be exchanged. Mounting and demounting can be performed without tools in the latter case. This is possible, for instance, by clamping or engaging of the dispensing container in the cover. To this end a recess is provided in the cover in a preferred embodiment, and a corresponding bulge of the dispensing container is passed through this recess. Preferably, the bulge has a shape complementary to that of the recess. The shape of the recess is in no way limited, preferred shapes are circular or ellipsoidal. Instead of a recess, at least one cavity can be provided at the front or side of the cover into which the dispensing container, correspondingly shaped, can be pushed, while the bulge of the container is clamped between the edges of the cavity. Here the cavity is preferably shaped so that the entrance opening for insertion of the dispensing container has a smaller diameter than the
Loertscher Ulrich
Pfluger Toni
Crispino Richard
Kuyus-Stiftung
Rothwell, Figg, Ernest & Manbeck, P.C.
Tadesse Y. T.
LandOfFree
Pump-free dosing device for flowable media does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pump-free dosing device for flowable media, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pump-free dosing device for flowable media will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3039852