US3600821A - Hair dryer hood - Google Patents
Hair dryer hood Download PDFInfo
- Publication number
- US3600821A US3600821A US670844A US3600821DA US3600821A US 3600821 A US3600821 A US 3600821A US 670844 A US670844 A US 670844A US 3600821D A US3600821D A US 3600821DA US 3600821 A US3600821 A US 3600821A
- Authority
- US
- United States
- Prior art keywords
- hood
- air
- passages
- layers
- blower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/18—Flexible caps with provision for hot air supply
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/44—Hair-drying helmets whereon the ventilating means and the heating means are apart from the helmet
Definitions
- ABSTRACT A hair dryer hood formed of a flexible material that is inflatable into a helmet shape, the hood being self-supporting without being carried by or in contact with the user's head, and being collapsible into a small space when not in use.
- the flexible material comprises inner and outer sheets secured together with primary and secondary air passages between the sheets, and a plurality of apertures in the inner sheet permitting warm air to be distributed to all areas inside the hood.
- HAIR DRYER HOOD BACKGROUND OF THE INVENTION 1.
- This invention pertains to hoods for hair dryers, and more particularly to flexible hoods forrnable into a helmet shape when operative and collapsible when inoperative.
- prior art hair dryers include an electric motor and fan combination for providing an airflow, a heater for warming the air, and a hood for enclosing the upper portion of a persons head and for receiving and distributing the warmed air to dry the persons hair.
- Typical commercial, beauty parlor hair dryers are large stationary machines with hard, helmetlike hoods under which a person places her head. These hoods are supported by the machine such that the user merely sits with her head under and partly within the hood, but without touching the hood.
- hoods employed with these dryers have certain unsatisfactory characteristics.
- a hard, rigid hood is employed which has the disadvantage of being bulky for travel or storage, and thus tends to defeat the principal objective of portability.
- the hood is made of flexible material which is collapsible for storage in a small container, but has a great many unpleasant operating characteristics described below.
- hoods are bonnets which have a draw string or elastic band around the lower opening to make certain the bonnet fits snugly about the head.
- the snug fit not only irritates the users forehead, but often leaves an impression after use which is uncomfortable and unsightly for a considerable time.
- an air inlet hose At the rear of the bonnet is an air inlet hose, the weight of which pulls downward causing the front of the hood to be pulled rearward against the users forehead and against curlers if they are used, causing further discomfort.
- the hoods with elastic bands are cumbersome to maneuver over the curlers; also such bands disturb hair near the back of the neck which may be set with small hair pins or clips.
- the discomfort of being encased in a tight-fitting bonnet is accentuated by having the inlet hose, which becomes hot, lie against the back of the users neck, and by having the close-fitting bonnet cover the ears which interferes with normal hearing.
- the bonnet-type hoods closely surround the users head with a resulting tendency of the air to recirculate through the hair and hood before being discharged. Recirculated air is partially saturated with moisture absorbed during its initial pass through the hair, and its capacity for further absorption of moisture is obviously reduced.
- the hard hoods of stationary dryers mentioned above while not portable in the practical sense, do provide numerous desirable operating features that are unavailable with bonnettype hoods of portable dryers.
- These hard hoods are substantially larger than the average users head, providing a space between the hood and the user's head for the air to pass freely. Consequently, the warm air makes essentially a single pass through the hair before being discharged, without recirculation.
- the capacity of the air to absorb moisture from the hair and to fully dry the hair is optimized, and discomfort and inconvenience to the user is minimized.
- the space between the edges of the open part of the hood and the users head permits the air to expand as it exhausts, being thus slightly cooled, and minimizing the passage of hot, moist air directly adjacent the users face and neck.
- the total cross-sectional area of all the apertures through which air is discharged is substantially smaller than the cross section of the air inlet and the principal passage such that a pressure may be maintained within the passages, and the hood may be maintained in an inflated condition.
- the collapsible hood constructed of flexible sheet material is inflatable to a self-supporting helmet shape without the users head contacting the hood to support it.
- This invention is an improved hood for use with a hair dryer having a blower and heater which provide a flow of heated air.
- the hood is adapted to surround and dry the hair on the upper portion of a person's head and further adapted to receive and direct the airflow into the hair.
- This new hood comprises an outer and an inner layer of flexible sheet material, the layers having substantially the same dimensions, being disposed in overlying relationship in registry with each other, having an inherent helmet shape, and being inflatable to have an upper half with a top-closed part and a lower half with a bottomopen part.
- the two layers are secured to each other near the bottom part of the hood, and further secured together at a plurality of spaced junctions which define, between the layers and between the junctions, passages for the airflow from the blower and heater component.
- These passages include a principal passage of a predetermined cross section generally circumscribing the hood, and a plurality of secondary passages, each having a smaller cross section than the principal passage and each communicating between the principal passage and other selected portions of the hood.
- the inner layer includes a plurality of air discharge apertures communicating with each passage, whereby the airflow passes from the passages into the interior of the hood.
- the cross-sectional area of the principal passage is substantially greater than the total cross-sectional area of all the apertures in the inside layer, whereby the airflow entering the passages of the hood under greater than atmospheric pressure may inflate and maintain the hood in an open helmet shape, without the need for external support.
- the invention further includes a support means for hoods described above, which is also highly collapsible for rendering the entire apparatus portable and convenient for operation and storage.
- FIG. 1 is a perspective view of an inflated hood, support, and container assembly 'of the invention
- FIG. 2 is a bottom perspective view of the inflated hood
- FIG. 3 is a rear elevation view of the hood, showing the basic polyconic shape
- FIG. 4 is a exploded view in perspective of the hoods components
- FIG. .5 is a plan view of the blank fonnable into a cone for the upper part of the hood
- FIG. 6 is a plan view of the blank formable into a cone for the lower outside part of the hood
- FIG. 7 is a sectional view taken along lines 7-7 of FIG. 3, and through the air passages,
- FIG. 8 is a sectional view taken along lines 88 of FIG. 3 and through vertical junction lines,
- FIG. 9 is a sectional plan view taken along lines 9-9 of FIG. 8, showing the inside of the hood and secondary air passages of the upper part,
- FIG. 10 is a sectional view taken through lines ll0 of FIG. 8 and through the principal air passage
- FIG. 11 is a sectional view taken through lines 1l11 of FIG. 8 and showing secondary air passages of the lower part of the hood,
- FIG. 12 is a fragmentary elevation view of the support member and connection means for the hood
- FIG. 13 is a fragmentary sectional view showing the rim at the lower edge of the hood
- FIG. 14 is a fragmentary sectional view through lines 14- 14 of FIG. 12 showing the connection of the support member to the hood, 7
- FIG. 15 is a sectional view of the container of FIG. 1, showing in full line, the hood collapsed and encased, and in dotted line a portion of the support member in operating position,
- FIG. 16 is a perspective view of a collapsible rim
- FIG. 17 is a fragmentary view of a folded portion of the collapsible rim
- FIG. 18 is a' perspective view of another embodiment of the hood.
- FIG. 19 is a plan view of a side structing a hood.
- FIG. 20 is a plan view of a top panel blank for the hood of FIG. 19.
- FIG. 1 The preferred form of the hood of this invention is shown in an inflated condition in FIG. 1.
- a hair dryer assembly comprising the hood 1, a hollow telescoping arm 2, which supports the hood and also serves as a conduit for the heated airflow from the blower to the hood, and a carrying case 3 which encloses the blower and heater and serves as a base for the assembly during operation.
- the hood has the general shape of an inverted bowl and is formed of an outer layer of flexible, plastic sheet material and a similar inner layer secured to the outer layer. These layers are joined, for example, by heating, sealing, sewing, gluing or any other known plastic-joining means, along numerous junction lines to form air passages defined by the lines between the layers.
- the hoods shape in a side elevation view is more specifically defined as being polyconic, in that the upper half 4 (FIG. 3) is cone shaped and flat across the top, and the bottom half is a similar but inverted cone.
- each blank is wrapped to form the cone as indicated in FIG. 4; one set of opposing upper and lower cones 7 and 8 form the inner layer of the hood, and a second set of upper and lower cones 9 and form the outer layer.
- each blank is wrapped into a cone shape with its respective adjacent side edges. joined at 7a, 8a, 9a, and 100, as shown in both panel blank used in con- FIGS. 3 and 4.
- the inner layer is completed by joining the cap and 13b of the cone.
- the outer layer is completed by joining the bases of lower cone 10 to upper cone 9 along circumferential junction line 12, and by joining cap 14 to cone 9 at line 14a.
- a rim to be secured between the two layers. These layers are joined in a manner as described above, in a first junction line along their mutual terminal edges at 30 and a second junction line 30a spaced about one inch from the first line, forming between them a circumferential slot for encasing the rim 29.
- the rim is a semirigid plastic material that maintains the open end of the hood in a generally circular shape. This rim might be a closed hoop, or straight strip of plastic bent into a circular shape with its ends joined fixedly to remain in this shape.
- FIGS. 16 and 17 is a modified version of a collapsible rim 36 that is formable into a generally circular shape.
- This rim comprises a plurality of semirigid arcuate portions 31 spaced between flexible, reduced thickness hinge portions 32.
- this or a comparable rim is secured to the open end of the hood, it will provide adequate support for defining a circular opening for the hood, and can be fully collapsible when inoperative.
- junction lines 15a and 15b and junction spots 16 are joined together by a plurality of junction lines 15a and 15b and junction spots 16, such that both primary and secondary air passages are defined between these junctions and between the layers.
- the slot for the rim defines horizontal lines 30 and 30a.
- the junction lines 15b in the lower half of the hood extend from the junction line 30a upward toward, .but not reaching, the midpoint junction line 12 of the upper and lower cones.
- Junction lines 15a between secondary passages of the upper cones extend generally vertically, each line having its lower end spaced about 1% inches from the center seam line 12, and its upper end spaced about 1 inch from junction lines and 14a where the caps join the upper cones.
- each junction line 15b and the lower end of each junction line 15a is such that the resulting primary passage 17 has a cross-sectional area substantially greater than that of the secondary passages 18 formed between lines 15a and 15b.
- the various passages become filled with air, causing the hood to take and maintain a helmet shape.
- the air in these passages is discharged to the interior of the hood through the many aper- The caps 13 and 14 of the inner and outer layers respectively, are joined at four junction spots 16 with the result that a second primary air passage 21 is formed which circumscribes the flat top of the upper cone.
- the junction spots 16 serve the dual function of defining the passage 21 and preventing the inner layercap 13 from ballooning downward into the hood interior, which must remain essentially empty to leave space for the user's head.
- the boot is essentially a short rectangular tube having a flange 220 at the end that adjoins the hood.
- the boot is disposed so that the hoods outer layer is sandwiched between the boot flange and a sealing band23 conforming to the flange dimensions, the three elements being joined by rivets 28 or other connection means.
- the lower part of the boot includes a hinge part 24 (FIG. 12) secured to the rim 29 within the hood and pivotally secured to the principal part of the boot. The hinge permits the boot to be pivoted to operative position with the axis of the boot and of conduit 2 and pivoted to inoperative posigenerally perpendicular for storage (FIG.
- FIG. 12 generally coaxial (FIG. 12), tion with the axes 15).
- the boot may be secured in the operative position by a latch means including a spring 25 having one end riveted to the conduit 2 and the other end formed into a hook 26 to engage a shoulder or detent 27 of the boot.
- a button 33 is mounted in the conduit such that axial pressure on the button will deflect the spring 25 and release the boot to be pivoted to its inoperative position.
- the support conduit is made of two or more telescoping tubular members having rectangular cross sections.
- the conduit In FIG. 1 and in FIG. 15 (in dotted lines) the conduit is shown in fully extended position; in FIG. 15 (in full lines) the conduit 2 is shown retracted and pivoted to closed position, with the rim 29, boot 22, and sheet material 1 of the hood also pivoted against the conduit to 00- cupy minimum space.
- the airflow from the conduit 2 passes through the boot 22 and into the air passages adjacent the boot (FIG. 3).
- the largest passage, and thus the one of least resistance to the further flow of air is the principal passage 17 which passes very near the boot, the result being that the air flows freely through passage 17, completely around to the front of the hood, and then becomes distributed to the secondary passages 15a and 15b above and below passage 17.
- the second principal passage 21 also becomes fully inflated whereby the air travels completely around the top of the hood and then is distributed downward into the secondary passages 15a.
- Each principal passage also functions as a reservoir in which a supply of air under pressure is maintained, the reservoir being a factor in maintaining the selflsupporting helmet shape of the hood, in addition to supplying the secondary passages.
- the sheet material in the preferred embodiment of this hood invention is a vinyl thermoplastic of about 0.005-inch thickness, which is well adapted for heat sealing at the numerous junctions between the layers. Vinyl has further desirable characteristics in being essentially impervious to the penetration of airand to absorption of water or even of moisture from the air in contact with the layers.
- An alternative sheet material is spinnaker cloth which has most of the same advantages of flexibility, lightweight, and economy.
- This is a calendered nylon fabric, and during its manufacture the woven threads are welded together by a process utilizing pressure and heat which produces a fabric of great strength and stability, and which is highly resistant to the penetration of air or the absorption of moisture. Junctions of layers of this fabric in the hood are made by stitching rather than heat sealing. A silicone coating applied to the fabric would further improve its moisture-resistant characteristics.
- other flexible sheet material having the required physical characteristics could be employed.
- the blower used with the preferred hood provides an airflow of about 35-45 cubic feet per minute, and the heater component is rated at about 700 watts to raise the temperature of air reaching the hood to a maximum of 150 F.
- a control unit adjusts both the rate of flow and the temperature to desired levels.
- the blower and heater components mounted within the carrying case 3 shown in FIG. 1, are the blower and heater components, one disposed on each side of the conduit.
- the lid 3a is hingedly connected to the case and covers the collapsed and flattened hood, resulting a highly compact unit.
- the hood of the present invention could be constructed in a variety of ways, one further embodiment being shown in FIGS. 18-20. Both the inner and outer layers of this hood 34 are formed of six similar panels or staves 35 which are joined at their adjacent sides. For each layer the cap part 37 is a hexagonal blank, each of its edges being joined to the top edge 38 of one panel.
- junctions between these components of the hood may be joined by any of the abovedescribed methods including heat sealing when the sheet material is vinyl or its equivalent, and stitching or gluing when the material is an appropriate cloth.
- a principal air passage may be formed to circumscribe the lower part of the hood, as shown, the middle part as in FIG. 7, or elsewhere, such that the desired airflow distribution and pressure equalization is achieved.
- a collapsible hood adapted to surround the hair on the upper portion of a person's head and further adapted to receive and direct the airflow into the hair to dry the hair, the hood comprising:
- an outer layer and an inner layer of flexible sheet material the layers being disposed in overlying position in registry with each other, having an inherent helmet shape and being inflatable to have an upper portion with a topclosed part and a lower portion with a bottom-open part,
- the layers being further secured together at a plurality of spaced junctions which def ne, between the layers and between the junctions, passages through which the air will flow, the passages including:
- the inner layer including a plurality of air discharge apertures, whereby the airflow passes from the passages into the interior of the hood, and
- a rim formed of a plurality of arcuate portions spaced between reduced thickness hinge portions, the rim being secured to the layers at the bottom part thereof and formable into a generally circular shape for defining the bottom opening, and being foldable at the hinge portions for collapsing the hood.
- a hair dryer having a carrying case, an air heater and blower mounted in the case, a hood having internal air passages and a semirigid rim at its bottom-open part, the hood having an inherent helmet shape and being both inflatable into a self-supporting open condition and collapsible, the improvement in combination therewith of means for supporting the hood and for communicating the air from the blower to air passages in the hood, the means comprising a telescoping tubular member a. having one end pivotally mounted in the case permitting the member to be pivoted from an inoperative position within the case to an operative telescoped position extending out of the case, and
- the carrying case being generally cylindrical and operatively positioned with the axis thereof vertical, the blower and heater components being spaced apart, the tubular member in inoperative position being disposed horizontally between the blower and heater, the hood when collapsed being disposed above the blower, heater and tubular member, and the case further comprising a hinged lid adaptable to cover the components in the case.
- the inner layer of sheet material having a multiplicity of perforations therethrough for distributing the air to the persons hair;
- a hair dryer hood according to claim 3 in which,
- a carrying case is provided for the hood
- the air heater and blower are mounted in the carrying case, and
- a hollow supporting arm is connected between the hood and the carrying case, the air being fed through said hollow arm to said main and auxiliary air supply passages.
Abstract
Description
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67084467A | 1967-09-27 | 1967-09-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3600821A true US3600821A (en) | 1971-08-24 |
Family
ID=24692120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US670844A Expired - Lifetime US3600821A (en) | 1967-09-27 | 1967-09-27 | Hair dryer hood |
Country Status (1)
Country | Link |
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US (1) | US3600821A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4361966A (en) * | 1980-12-29 | 1982-12-07 | Downey John H | Portable hair dryer |
US5235760A (en) * | 1991-12-23 | 1993-08-17 | Bastien Ernest J | Hair dryer with blower and radiant heating modes of operation |
US20080229480A1 (en) * | 2007-03-21 | 2008-09-25 | Rose Hardwick | Heat deflector for use with a hood-type hair dryer |
US20170231359A1 (en) * | 2014-10-06 | 2017-08-17 | Hair Flair Limited | Hood hair dryer attachment |
USD819267S1 (en) * | 2017-04-25 | 2018-05-29 | Ronette Mayfield | Hair dryer cover |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2481407A (en) * | 1948-04-14 | 1949-09-06 | Genie Entpr Inc | Hair drying device |
CH367291A (en) * | 1959-12-31 | 1963-02-15 | Tornado France | Headdress for drying hair |
US3113848A (en) * | 1959-11-12 | 1963-12-10 | Gen Electric | Hair dryer bonnet |
US3281955A (en) * | 1963-11-26 | 1966-11-01 | Gen Electric | Hair dryer bonnet |
GB1067853A (en) * | 1963-07-09 | 1967-05-03 | Siemens Elektrogeraete Gmbh | Hair dryer hood |
US3362086A (en) * | 1966-05-31 | 1968-01-09 | Gen Electric | Hair dryer with selective telescopic adjusting means |
US3374551A (en) * | 1966-03-02 | 1968-03-26 | Bretford Mfg Inc | Hair dryer bonnet |
-
1967
- 1967-09-27 US US670844A patent/US3600821A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2481407A (en) * | 1948-04-14 | 1949-09-06 | Genie Entpr Inc | Hair drying device |
US3113848A (en) * | 1959-11-12 | 1963-12-10 | Gen Electric | Hair dryer bonnet |
CH367291A (en) * | 1959-12-31 | 1963-02-15 | Tornado France | Headdress for drying hair |
GB1067853A (en) * | 1963-07-09 | 1967-05-03 | Siemens Elektrogeraete Gmbh | Hair dryer hood |
US3281955A (en) * | 1963-11-26 | 1966-11-01 | Gen Electric | Hair dryer bonnet |
US3374551A (en) * | 1966-03-02 | 1968-03-26 | Bretford Mfg Inc | Hair dryer bonnet |
US3362086A (en) * | 1966-05-31 | 1968-01-09 | Gen Electric | Hair dryer with selective telescopic adjusting means |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4361966A (en) * | 1980-12-29 | 1982-12-07 | Downey John H | Portable hair dryer |
US5235760A (en) * | 1991-12-23 | 1993-08-17 | Bastien Ernest J | Hair dryer with blower and radiant heating modes of operation |
US20080229480A1 (en) * | 2007-03-21 | 2008-09-25 | Rose Hardwick | Heat deflector for use with a hood-type hair dryer |
US20170231359A1 (en) * | 2014-10-06 | 2017-08-17 | Hair Flair Limited | Hood hair dryer attachment |
USD819267S1 (en) * | 2017-04-25 | 2018-05-29 | Ronette Mayfield | Hair dryer cover |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: NIHON SIBER HEGNER, K.K. Free format text: SECURITY INTEREST;ASSIGNOR:RONSON CORPORATION A CORP OF NJ;REEL/FRAME:004286/0886 Effective date: 19840314 |
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AS | Assignment |
Owner name: LAZERE FINANCIAL CORPORATION 60 EAST 42ND STREET, Free format text: SECURITY INTEREST;ASSIGNOR:RONSON CORPORATION;REEL/FRAME:004304/0018 Effective date: 19840516 Owner name: SECURITY PACIFIC BUSINESS CREDIT INC., 228 EAST 45 Free format text: SECURITY INTEREST;ASSIGNOR:RONSON CORPORATION;REEL/FRAME:004304/0018 Effective date: 19840516 |
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Owner name: FOOTHILL CAPITAL CORPORATION, A CORP. OF CA, ILLIN Free format text: SECURITY INTEREST;ASSIGNOR:RONSON CORPORATION;REEL/FRAME:004431/0132 Effective date: 19850614 |
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AS | Assignment |
Owner name: RONSON CORPORATION, NEW JERSEY Free format text: RELEASE OF SECURITY INTEREST IN PATENTS;ASSIGNOR:WELLS FARGO FOOTHILL, INC.;REEL/FRAME:022248/0313 Effective date: 20090209 |