US2101502A - Hair drying apparatus - Google Patents

Description

Dec. 7, 1937. J. M. KELLER HAIR'DRYING AFPAHATUS Filed Dec. 28, 1931 INVENTOR. JOHN 7 KELLER. BY

v Q9 A TTORNEYS Patented Dec. 7, 1937 UNITED STATES 2,101,502 1mm DRYING APPARATUS I John M. Keller, Lakewood, Ohio- Application December 28, 1931, Serial No. 583,468

Claims.

This invention relating as indicated to hair drying apparatus has particular reference to an apparatus designed to be placed over the users head so that the hair, after washing, may be 5 quickly and efliciently dried without the usual discomforts incidental to the use of apparatus as heretofore constructed.

As is well known to those familiar with the art, the operation of drying hair, after washing w and the like, requires a considerable period of time, which is undesirable from the standpoint of the time consumed, as well as the physical discomfort of the individual during the drying operation. The reason why such a long period is required to dry the hair is that no means has been provided for quickly carrying away the moisture from the vicinity of the hair so that the drying operation may proceed continuously in a fresh supply of heated dry air.

It is among the objects of my invention to provide an apparatus which shall be capable of performing a hair drying operation in a minimum of time and with increased efficiency.

Other objects of my invention will appear as the description proceeds.

To the accomplishment of the foregoing and related ends, said invention, then consists of the means hereinafter fully described and par-' ticularly pointed out in the claims.

The annexed drawing and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical' forms in which the prlnciple of the invention may be used.

In said annexed drawing the single figure is a side elevational view, partially in section, of the apparatus comprising my invention.

Referring now more specifically to the drawit is to be noted that the apparatus com-' prising my invention may be supported on a suitable mobile stand, generally indicated at I, which, at its upper end; is provided with a tele: scopic extension 2 secured in adjusted elevation by a wing-nut 3. The extension 2 is provided with a laterally extending arm 4 which terminally supports the apparatus more specifically comprising my invention.

The hair drying apparatus comprising my invention consists of a motor 5 which may be of the usual construction so that a further detail of such motor will not be shown or described.

Secured to the motor or the arm 4 and depending therefrom is a bell-shaped casing '6 which has associated therewith an inner casing PATENT} OFFICE I defining a space .8 therebetween. The lower ends of the casings 6 and I are interconnected and the space 8 closed by some suitable means such as a rebent portion 9 of the inner shell. Mounted in the space 8 between the casings 6 and l is a heating element lllwhich may be of 'any common form of construction so that a fur-' ther description thereof is believed unnecessary. The heating element will preferably be in the form of a resistance unit connected to suitable leads for supplying electric current thereto.

Secured within the inner shell I and extending thereacross is a foraminous diaphragm H which is designed to admit the passage of air therethrough and yet keep the hair from being blown upwardly as it is being dried.

Mounted on the armature shaft of the motor 5 is a fan, generally indicated at l2, which has impeller blades l3 secured thereto. The impeller blades are so formed that when the armature of the motor is rotated in the normal direction, the air will be forced thereby upwardly in the direction indicated by the arrows. The impeller blades 13 have extensions l4 secured thereto or formed integrally therewith, such extensions being formedas impeller blades of a pitch opposite to that of the blades l3, so that the air isforced thereby. downwardly through the space 8 ,as indicated by the arrows.

Ingress orifices l5 are provided for the air 30 in the upper portion of the casing 6 and egress orifices it are provided in the upper portion of such casing .for the air exhausted from the apparatus by the impeller blades l3.

An annular baffle member I1 is secured to the inner surface of the casing l6 and disposed towards the juncture between the impeller blades l3 and I so as to maintain separate the streams of incoming and outgoing air. The lower portion of the inner casing I is provided with a plu- 4 rality of egress orifices l8 which project the air supplied by the impeller blades I4 against the head of the user whose hair is to be dried.

In order to insure that none of the humidified air discharged from the apparatus will be drawn 4 back into the same by means of the impellers I4, an annular baflle i9 is provided-which insures that the stream of incoming air will be drawn from a direction counter to the direction of flow of the stream of outgoing air. 6

The operation of the above described apparatus. is briefly as follows:

The telescopic extension 2 will be adjusted so that the hood comprising the inner and outer casing, l and 6 respectively, will be positioned over i the head of the user whose hair is to be dried. The motor 5 will then be energized to drive the fan I! in a direction to produce an air flow, as indicated by the arrows. The incoming air is forced downwardly through the space 8 between the inner and outer shells and is raised in temperature by means of the heating element Ill. The air will then be discharged through the orifices ll against and through the hair'which is to be dried. The impeller blades I I of the fan will evacuate the space within the inner shell so that there is a constant interchange of air over and through the hair being dried. Due to the fact that the moisture evaporating from the hair is immediately carried away'and a new supply of dry air provided, the drying operation will proceed at the fastest possible rate.

The provision of the impeller blades ll evacuating the inner casing I, also prevents any of the drying air which passes through the orifices i8 from blowing down onto the shoulders and neck of the user. The apparatus comprising my invention, therefore, eliminates the occurrence of objectionable drafts on the neck and shoulders of the user which hasheretofore been the source not only of considerable physical discomfort but has actually been injurious to the health.

I claim:

1. In hair drying apparatus, a hood adapted to be placed over the users head and comprising spaced inner and outer shells, means closing the lower end of the space between said shells, apertures in the lower portion of said inner shell, and a fan mounted across the upper end of said shells and having blades provided with oppositely pitched areas respectively opposite the spaces 'defined by said shells.

2. In hair drying apparatus, a hood adapted to be placed over the users head and comprising spaced inner and" outershells, means closing the lower end of the space between said shells, apertures in the lower portion of said inner shell, a foraminous diaphragm in said inner shell, and a fan mounted across the upper end of said shells and having blades provided with oppositely pitched areas respectively opposite the spaces defined by said shells.

3. In hair drying apparatus, a hood adapted to be placed over the users head and comprising spaced inner and outer shells, means closing the lower end of the space between said shells, apertures in the lower portion of said inner shell, a heating element disposed in the space between said shells, and a fan mounted across the upper end of said shells and having blades provided with oppositely pitched areas respectively opposite the spaces defined by said shells.

4. In hair drying apparatus, a hood adapted to be placed over the users head and comprising spaced inner and outer shells, means closing the lower end of the space between said shells, apertures in the lower portion of said inner shell, a heating element disposed in the space between said shells, and a fan mounted across the upper end of said shells and having blades provided with oppositely pitched areas respectively opposite the" spaces defined by said shells.

5. In hair drying apparatus, a bell shaped outer shell, an inner shell, means closing the lower end of the space between said shells, apertures in the lower portion of said inner shell, a heating element disposed in the space between said shells,

a foraminous diaphragm in said inner shell, a fan in said outer shell having blades provided with oppositely pitched areas respectively opposite the spaces defined by said shells, a plurality of annularly arranged apertures in the upper portion of said outer shell, and a baflie disposed between said annular rows of apertures.

JOHN M. KELLER.

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