Electric resistance heating devices – Heating devices – Vaporizer
Reexamination Certificate
2000-04-27
2001-08-28
Paik, Sang (Department: 3742)
Electric resistance heating devices
Heating devices
Vaporizer
C261S139000
Reexamination Certificate
active
06282369
ABSTRACT:
The invention relates to a facial sauna as defined in the preamble of claim
1
.
BACKGROUND OF THE INVENTION
Such a facial sauna is known, for example, from the patent document U.S. Pat. No. 4,399,349 A. The known facial sauna is fitted with a total of four vapor delivery means of different construction, i.e. one substantially cup-shaped vapor delivery mask, one vapor delivery tube with an open end, one vapor delivery tube with an end closed by a brush, and one vapor delivery tube with an end closed by a piece of foam material. When the known facial sauna is used with the vapor delivery mask, which issues a wide jet of vapor, a user will position his/her face at a distance to the vapor delivery mask which is felt to be comfortable. When using the facial sauna with the vapor delivery nozzle with open end, which gives off a comparatively narrow vapor jet, a user must approach with his/her face considerably more closely to the facial sauna so as to utilize the comparatively concentrated vapor jet for the treatment of only a small skin portion, as desired, which has the result that the user must bend more closely towards the facial sauna which is, for example, positioned on a table surface, which in its turn leads to a less comfortable body position and may lead to painful muscular tensions in the back region in the case of a longer period of use.
SUMMARY OF THE INVENTION
The invention has for its object to reduce substantially or even eliminate completely the disadvantages indicated above and to provide an improved facial sauna which guarantees a comfortable body position during its use at all times.
To achieve the above object, a facial sauna as defined in the preamble of claim
1
, according to the invention, is characterized in that the features defined in the characterizing part of claim
1
are present.
The measures according to the invention achieve in a very simple manner that, when using the facial sauna, a user can always occupy the same position relative to the facial sauna with his/her face independently of the use of one or the other of the two vapor delivery means, i.e. can always assume and maintain the same, personally comfortable body position, so that a relaxed utilization of the facial sauna is achieved at all times and unpleasant physical loads are prevented. The measures according to the invention indeed achieve in a particularly simple manner that, when a thin vapor jet of comparatively small diameter is generated, i.e. a concentrated vapor jet for the treatment of special skin portions—for example the transition portion between the nose and the forehead—, the production of this thin vapor jet takes place at a comparatively great distance from the facial sauna, and accordingly at a comparatively small distance from the skin portion to be treated, so that the thin vapor jet makes contact with the skin portion to be treated in a concentrated form while the user occupies a pleasant and comfortable body position.
The distance ratios as specified in claims
2
and
3
have been found to be particularly advantageous in a facial sauna according to the invention. This has been demonstrated in practical tests.
The construction of a facial sauna according to the invention may be such that one or the other of the two vapor delivery means may be connected to the vapor outlet of the facial sauna, as desired. It was found to be particularly advantageous, however, if in addition the features as defined in claim
4
are provided in a facial sauna according to the invention. A particularly simple handling is thus achieved in such a facial sauna according to the invention, because the first vapor delivery means can remain permanently connected to the vapor outlet, and only the second vapor delivery means must be handled, i.e. is to be provided on the first vapor delivery means if a thinner vapor jet instead of a wider vapor jet is desired.
In a facial sauna according to the invention in which the second vapor delivery means can be coupled to the first vapor delivery means, in particular can be pushed home onto the latter, it was found to be particularly favorable when in addition the features of claims
5
and
6
are provided. The measures according to claim
5
safeguard a secure coupling of the second vapor delivery means to the first vapor delivery means. Furthermore, the measures of claim
6
achieve that water condensation which may be formed in the second vapor delivery means can flow back through the at least one water return channel into the interior of the facial sauna.
The above and further aspects of the invention will become clear from the following description of an embodiment and are explained in more detail with reference to this embodiment.
REFERENCES:
patent: 2467393 (1949-04-01), Leher
patent: 3351737 (1967-11-01), Katzman et al.
patent: 4190052 (1980-02-01), McCarthy
patent: 4300556 (1981-11-01), Ochi et al.
patent: 4399349 (1983-08-01), Deming et al.
patent: 5010905 (1991-04-01), Snyder et al.
patent: 5098414 (1992-03-01), Walker
patent: 5607409 (1997-03-01), John
Kruschitz Bernd
Maier Michael
Schrettlinger Joachim
Bartlett Ernestine C.
Paik Sang
U.S. Philips Corporation
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