US1914820A

US1914820A - Hair drier

Info

Publication number: US1914820A
Application number: US578235A
Authority: US
Inventors: Zollars Louise
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-12-01
Filing date: 1931-12-01
Publication date: 1933-06-20
Anticipated expiration: 1950-06-20

Description

Patented June' 20, 1933 langszijy f UNITED STATESA PATENT OFFICE.

Louisa nomas, or noLLrwoon,

` i :um nm' application mea December 1, 1931. serial no. 578,235.

Means are provided for varying the tem`A perature of the heating` element and in some instances means are provided for varying the speed of the fan so as to regulate the velocity of air iiowing through the hood.A -Driers of this nature have the disadvantage of subjecting the occupant of the drier to aour; rentv of warm or hot air which circulates about the face and the neck over a substantial period of time, depending upon the timer required to properly dry the 'hail'.

It is the primary object of this invention to produce a drier of the class described which is constructed so thatwarm air may be d' ect d u on the hair of the occu ant 1r e p p preferred form of valve plate which nia and which is provided with means for selectively directing a current or currents of cold or cool air into the portions of the head space where no drying action is needed.

More specifically my invention 'comprises a drier of the class described consisting of vided with means for directing a current of warm air through the central portion of the hood and into engagement with the hair. In addition to such mea-ns I provide an isolated air duct preferably contained witho in the housing and adapted to carry cool or cold air into the front upper end portion of the -head space. v

In addition to this air duct I provide another isolated air duct preferably -situated in the bottom portion of the housing which a hood having a head-space therein and prodirects a current of cold air into the lower portion of the head space.

It will be seen that the first air duct mentioned above directs a currentof cool air across the face of the occupant of the drier and the second air duct directs a current of cool air about the neck of the occupant.

The air ducts just described are both providedwith valve means for regulating the 55 ilow of air therethrough.

The details in the construction of a pre- `ferred form of my invention, together with other'objects attending its production will be best understood from the following derlption of the accompanying drawing hich is chosen for illustrative purposes only, and in which- Fig. 1 is an elevational view partly in section showing a preferred form of my inc5 vention;

, Fig. 2 is a sectional view taken -in a plane 'regresented by the line 2 2 in Fig. 1;

ig. 3 is an end elevation which may be considered as having been taken in the di-I 7orection of .the arrow 3 in Fig. 1;

F1g. 4 is a perspective view showing a used in regulating the quantity of air owmg through the cold air ducts, and

Fig. 5 is a fragmentary detail view 4illustrating means for controlling' the air valves just mentioned. f

More particularly describing the invention as herein illustrated, reference numeral 11 indicates a drying apparatus which consists of a shell or housing 12'which may be made Yin any'cross sectional shape Abut is shown as being constructed as rectangular or substantially square.

This shell is providedA at its rear portion i with a circular flange 13 which supports a fan cage 14, the fan cage having a motor 15 mounted thereon, said motor belng provided with shaft 16 which extendsinwardly into 90 fan 18 provided thereon, within the fan chamber.

5. The shell 12 maybe supported in a'ny suitable manner but is shown as adj ustably supported, by means of ears 19 which are shown as being mounted in the fan cage and which pivotal y engage a'bracket 2O mounted upon a standard 21 which is adjustably received in a vertical leg22, such leg being provided with a suitable stand not shown.

The front end portion of the shell 12 is provided with what I may term ahood member 24 which extends forwardly t 'form a head space 25.

The central portion of the shell is provided -with what I may term ahot air barrel 26 which is shown as having its rear por- The upper end portion of the shell is provided with a partition plate 29 which is spaced a substantial distance from the shell roper and cooperates therewith to form a uct or assage 30 through which cool air,

The bottomv portlon o the shell is pro` vided with a partition member 34 which is spaced a substantial distance abovethe bot tom portion so as to form another air duct which leads from the air chamber 17 to the rear bottom portion of the head space.

This duct, which is indicated by reference numeral 35, has ports 36 provided in its forv ward edge, such ports being ada ted to direct the cool or cold air, coming rect from the fan, about the neck of an occupant of thedrier which is shown in dot and dash lines in Fig.v 1.

The air coming from the duct 30 is directed downwardly across the face of the occupant of the ,drier and for the purpose of'directing warm air against the hair of the occupant, I provide within the barrel26 an air irecting dome 40 which is supported in the barrel by a plurality of fins 41. This dome is situated with its widest diameter away vfrom the fan and the widest diameter of the dome is spaced inwardlyfrom the inner surface of the barrel 26. l

Mounted on the periphery of this dome, I provide a heating element indicated by reference numeral 42, this elementv being connected through a conductor 43 with va rheostatbox 44 which may be employed to regulate the current delivered to the heating element and .thereby regulate the temperature .;ofsuch element. Y

The air` which passes from the fan chamber tion supported in theshell by a supporting 17 through the heating element 42 is directed in a general inward direction by means of a baille 'member 45 which-is constructed in the nature of a constricted shell having a narrow throat, such shell being adapted to direct the air, which has been heated by the heating element, onto the hair of the occupant of the drier:

In order that the cool air passing through

ducts

30 and 35 may not be heated by t e heating element or by conduction through the central barrel, I provide suitable insulating means which separate the barrel from the

partition'members

29 and 34. This insulation may be any type of commercial insulation but in the form shown I have rovided the necessary insulating medium y separating the barrel 26 a slight distance from the respec- '

tive partition members

29 and 34, thus providing a dead air space therebetween which forms a very effective insulating medium.

Inorder to prevent a loss of air from the drier through the opening through which the conduit 43 is lead from the heating element, Il provide a tube 47 which is provided with a packing member 48 in its upper end portion.

For the purpose of controlling the quantity of air delivered to the top and bottom portions of the head space through the

ducts

30 and 35, I provide such ducts with valve means generally indicated by

reference numerals

49 and 50 respectively. These valves may be of anypreferred type, but for simplicity and economy in constructio I choose to form the valves of substantially at plates best shown in Fig. 4 and indicated by reference numeral 51. l

These plates have theirv side portions upturned to form

guide ianges

52 and 53, the

guide flan e 53 being provided with a knob 54 adapte to extend through a slot 55 in the side of the drier shell.

It will be observed that these plates 51 may bemoved from an extreme open position, as shown in Fig. 1, to a position at which the rear edges of the plates engage the vertical plate portion 57 of the shell or housing.

When in this extreme rear position there will .air is drawn into the fan space through-a screen indicated at 60. Part of such cold air is thrown outwardly by the fanand passes through the

ducts

30 and 35, the quantity of such air being controlled by the position of the

valve members

49 and 50. The remainder of the air drawn into the fan space by the fan,

is vforced inwardly over the dome 40 and through the heating element 42 which warms 1t to the desired temperature, depending upon the temperature of the heating element and the velocity at which the fan is operated. This Warm air is then-directed into the head ing a head space which is provided with means for directing two or more currents of air into the head space, such currents of air being of different temperatures. This construction, as pointed out above, has the advantage of providing means whereby warm or hot air may be directed against the hair and a current of cold or cool air that may be directed against those portions of the head which are not to be dried.

It is to be understood that While I have herein described and illustrated one preferred form of my invention, the invention is not limited to the precise construction describedabove, but includes within its scope any changes which fairly come within the spirit of the appended claims.

I claim as my invention:

1. A hair drier embodying: a housing having a head space in the` front portion thereof and a fan chamber in the rear portion thereof; air heating means in said housing; means for conducting air from said fan chamber through said heating means and into the central port-ion of said head space; and a cool air conduit in the top of said housing for conducting cool air from said fan chamber to the front upper portionv of said head space; said cool air conduit terminating in an opening arranged for directing air from said'conduit downwardly across the front of said head space and across the face andA cheeks of a head therein.

2. A hair drier embodying: a housing having a hood formed with a head space in the front portion thereof and a fan chamber in the rear portion thereof; air heating means in said housing; means for conducting air from said fan chamber through said heating means and into the central portion of said head space; a cool air conduit in the top of said housing for conducting coolI air from said fan chamber to the front edge of said hood; and insulating means interposed between said cool air conduit and said air heating means, said cool air conduit terminating in an elongated opening arranged to direct cool air downwardly across the front of said head space and across the face and cheeks of an occupant of said drier.

3. A hairl drier embodying: a housing having a hood formed with a head space in the front portion thereofrand a fan chamber.

tom of said housing extending from said fan chamber to the lower edge of said hood, said cool air conduit having an opening at the lower edge of said hood for directing cool air across the lower edge of said head space and across the neck and shoulders of an occupant thereof.

4. A hair drier embodying: a housing having a hea-d space in the front portion thereof and a fan chamber in the rear portion thereof; -air heating means in said housing; means for conducting air from said fan chamberV through said heating means and into the central portion of said head space; a cool air conduit in thebottom offsaid housing for conducting cool air from said fan chamber to the lower edge of said head space; and insulating means' interposed between said air heating means and said cool air conduit.

5. A hair drier embodying: a housing having a head space in the front portion thereof and a fan chamber in the rear portion thereof; air heating means in said housing; means for conducting air from said l fan chamber through said heating means and into the central portion of said head space; a cool air conduit in the bottom of said housing for conducting cool air fromvsaid fan lchamber to the lower edge of said head space; and valve means for opening and closing sa1d cool air conduit.

6. A hair drlerembod ng: a housing having a head space in the front end thereof;

`a fan chamber in the rear portion of said housing; a fan in said fan chamber; air heating means in said housing; means for conducting air from said fan chamber through said heating means to said head space; a cool air duct extending along one edge of sa1d housing from the fan chamber to the head space; and valve means for opening and in said housing for delivering air from said y fan chamber into the central portion of said head space; a heating element in said hot air conduit; and cool air conduits leading from said fan chamber to said hood and separated from said hot air conduit, said cool air conduits having openings in said hood arranged so as to direct cool air across the front and bottom of said head space.

8. A hair drier embodying: a housing having ahead space formed in the front portion thereof and a fan chamber in the rear portion thereof; a hot air conduit in said housing for delivering air from said fan chamber into the central portion of said i 4 I :msm

head'spaoe; means for heating the air through said het air conduit; cool au' oon-4 duit means in said housing for delivering cool air from said fan chamber to the 5 of said head space and directing said cool an* across the front and bottom of said end space, said cool air conduit means be` separated from said hot air'conduit.

In testimon whereof I have hereunto set 10 my hand at Angeies, California, this 20th day of November 1931.k

LOUISE ZOLLABS.