US 2575841 A
Description (OCR text may contain errors)
Nov. 20, 1951 J. Rbsu 2,575,841
DRYING CAP Filed Dec. 11,1948
ATTO KN E55 Patented Nov. 20, 19 l ".J'L'T UNITEDAVSTATES "PATENT OFFICE J acques Riisli, Zurich, Switzerland, assignor to APA Prospekt A-G.,;Zurich, Switzerland Application December 11, 1948, Serial No. 64,859 1 In Switzerland September 10, 1948 The drying devices for hair, with built-in hotair appliances, as generallyadopted by hairdressers, are first of all complicated in their construction and therefore expensive to purchase, so that their adoption can come into question only in business undertakings, i. e., in hair-dressing salons. In addition to that, they have the great drawback that the person being treated is much limited in her freedom of bodily movement, so that she must keep her head quiet under the cap and is also impeded in her breathing.
The present invention relates to a drying cap eliminating these drawbacks and simple to make and to use, which can be adopted in connection with any known hot-air apparatus both in business undertakings or in the home.
The drying cap according to the present invention is distinguished by a cap consisting of pliable material, impermeable to air, which has a tightly closing opening for the head, a member for admitting the air and outlet openings for the air.
As member for admitting the air it is preferable to adopt a piece of tubing impermeable to air and consisting of pliable material, this tubing opening tangentially in the cap in such a manner that the current of air entering the cap makes a circulating movement. This circulating movement may also be obtained by extending the tubing into the interior of the cap and ending it there in a part which guides the air-current in the desired direction.
The drying cap according to the present invention has the advantage that it can first of all be set on the head like a bathing cap and that the face remains free during the drying operation and is not subjected to the hot air current; it has further the advantage that the breathing is not affected and thirdly that the person being treated can move her head and also remains comparatively free in her other movements.
One execution of the object of the invention is illustrated by way of example in the accompanying drawing, where Fig. 1 is a view on to the blown-up cap,
Fig. 2 a view inside the cap.
The drying cap consists of a lower surrounding part I and an upper covering part 1, whereby the two parts I and I may be sewn together or stuck together from separate pieces, or the whole cap may consist of one single piece. The material forming the cap is impermeable to air and pliable; it may consist for instance of rubberised material of any kind.
1 Claim. (CI. 34-99) I In the lower part l of the cap an opening is, provided which is fitted with an elastic band 8,
so that the cap may press close to the head when in use.
A tubing 2 leads into the cap and also consists of pliable material impermeable to air; it serves for introducing the hot air, and close to the position where it enters the cap it torms a bend 9, so that it is directed obliquely downwards. The tubing 2 has at its lower end a. connecting piece It, which serves for fixing the tubing 2 to a hotair supply pipe and consists preferably of an elastic band, so that the tubing can be pushed in a simple manner over the supply pipe. For producing the hot air, an apparatus of known type may be adopted; when used in business undertakings the tubing can also be connected to an existing, stationary hot-air plant.
The air conducting tubing 2 enters the cap preferably not radially, but tangentially, so that the air current thereby receives a circulating movement in the cap. In order to guide the air current still better and to ensure the circulating movement of the air current, the tubing 2 extends with a part 3 into the interior of the cap and thus leads the air current along the inner wall of the cap next to the inlet opening. The part 3, which is in the interior of the cap, may form a part of the tubing 2 or be constructed as a separate part and fixed within the cap.
In order to ensure unimpeded passage of the air through the tubing 2 and unimpeded entrance into the cap, a supporting member 4, for instance a wire helix, is provided in the tubing 2; this helix keeps the cross-section of the tubing free, since it prevents any buckling, and it also holds the tubing 2 in its most preferred position at the place where it enters into the cap, so that the air current retains its necessary and optimum direction in the cap. The flexibility of the wire helix 4 nevertheless allows certain changes in the position of the cap and tubing and thus convenient accomplishment of the drying operation.
In the cap itself air outlets 6 are arranged in the neighborhood of the opening for the head; through these outlets the warm air laden with moisture can issue. These outlets may also be fitted with some known type of valves not shown in the drawing, in order that the quantity of air issuing may be suited to the pressure prevailing within the cap, so that the cap is fully blown up while in use and does not require any supporting members within it.
The described arrangement of the tangential entering of the tubing 2 into the cap and the arrangement of the part 3, guide the air current tangentially and prevent its being introduced directly against the head of the person whose hair is being dried, so that headaches and other disagreeable effects which might be caused by direct impact of the hot air on the head are avoided.
In addition, the drying process is accelerated by this guiding-of theair, since it enters into the moist hair, taking up the moisture there and goes circulating downwards and leaves the cap through the air outlets.
What is claimed:
1. A drying cap, comprising, in combination, a cap consisting of pliable material impermeable to air and having an inlet opening adjusted to 'fit closely to the head of the user, said cap having air outletsformed therein and located adjacent said opening, a flexible tubing having an end portion projecting into the interior of the cap and extending within the cap tangentially along an inner wall-thereof, whereby air-current entering the cap carries out a circulatory movement, and a flexible supporting wire within said tubing.
REFERENCES CITED The following references are of record in the file of thispatent:
UNITED STATES PATENTS v,
Number Name Date D. 147,599 Shields Sept. 30, 1947 11 155,482 Collison Oct. 11, 1949 1,685,345 Voss Sept. 25,1928 1,790,283, Rickard Jan. 27, 1931 2,266,653 Miller Dec. 16, 1941 2,440,157 Rousseau Apr. 20, 1948 2,466,915 Shields, Apr. 12, 1949 2,474,165 Roberts June 21, 1949 2,488,227 Nelson Nov. 15, 1949' FOREIGN PATENTS Num er Country Da e .Germ nymmg-w- June 11., 1 31