US3797475A - Portable cordless hairdryer - Google Patents

Portable cordless hairdryer Download PDF

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Publication number
US3797475A
US3797475A US00288440A US3797475DA US3797475A US 3797475 A US3797475 A US 3797475A US 00288440 A US00288440 A US 00288440A US 3797475D A US3797475D A US 3797475DA US 3797475 A US3797475 A US 3797475A
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US
United States
Prior art keywords
housing
casing
wire element
core
air
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
Application number
US00288440A
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English (en)
Inventor
T Hughes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ronson Corp
Original Assignee
Ronson Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ronson Corp filed Critical Ronson Corp
Application granted granted Critical
Publication of US3797475A publication Critical patent/US3797475A/en
Assigned to NIHON SIBER HEGNER, K.K. reassignment NIHON SIBER HEGNER, K.K. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RONSON CORPORATION A CORP OF NJ
Assigned to SECURITY PACIFIC BUSINESS CREDIT INC.,, Lazere Financial Corporation reassignment SECURITY PACIFIC BUSINESS CREDIT INC., SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RONSON CORPORATION
Assigned to FOOTHILL CAPITAL CORPORATION, A CORP. OF CA reassignment FOOTHILL CAPITAL CORPORATION, A CORP. OF CA SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RONSON CORPORATION
Anticipated expiration legal-status Critical
Assigned to RONSON CORPORATION reassignment RONSON CORPORATION RELEASE OF SECURITY INTEREST IN PATENTS Assignors: WELLS FARGO FOOTHILL, INC.
Expired - Lifetime legal-status Critical Current

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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
    • A45D20/04—Hot-air producers
    • A45D20/06—Hot-air producers heated otherwise than electrically; ventilated by muscle power
    • 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
    • A45D20/04—Hot-air producers
    • A45D20/06—Hot-air producers heated otherwise than electrically; ventilated by muscle power
    • A45D2020/065—Hot-air producers heated otherwise than electrically; ventilated by muscle power heated by gas or fuel

Definitions

  • a portable cordless hairdryer comprising a heater unit to produce an exothermic reaction at a controlled rate and battery operated blower means to direct air heated by the heater unit onto hair to be dried.
  • This invention relates to hairdryers and more particularly to portable cordless hairdryers.
  • a hairdryer normally comprises a motor driven fan and a heater.
  • the arrangement is such that cold air drawn in by the fan is directed across the heater onto the hair of the user.
  • Both the fan and heater are normally electrically operated.
  • the hairdryer which comprises a motor driven fan energized by primary or storage cells and a heater which includes a material or materials capable of producing an exothermic reaction at a controlled rate contained in a heat conductive housing.
  • the material is combustible in air and is totally enclosed apart from small perforations in the housing for the entry of combustion air.
  • the material is preferably ignited electrically.
  • FIG. 1 is a perspective and diagrammatic view of a hairdryer, the hairdryer housing only being shown in outline, and
  • FIG. 2 is an exploded perspective view of a heater assembly for use in the hairdryer of FIG. 1.-
  • FIG. 1 the general outline of the hairdryer casing is shown at 10 and the casing includes an air outlet 12,
  • the hairdryer uses a conventional fan 16 of the tangential type driven by a low voltage d.c. motor 18 from four batteries 20 which may be of any suitable type, primary or rechargeable.
  • the batteries 20 are suitably housed within casing 10.
  • the heater unit 22 comprises a core 24 of a material combustible in air, such as charcoal, carrying a spiral of wire 26 therearound.
  • the charcoal core 24 and wire 26 are surrounded by loosely packed fibreglas formed as a casing 28 and closed by a lid 30.
  • a preforated cylindrical metal sheath 32 provided with a plurality of perforations 34 in the cylindrical wall surrounds the fibreglas.
  • a base member 36 is provided for the sheath 32 and the base member includes two contact pins 38, 40 extending therefrom to which the ends of the wire 26 are secured, one to each, in good electrical contact.
  • a lid 42 fits on the open end 44 of the metal sheath 32 and completely seals the heater unit 22.
  • the heater unit 22 is inserted through an aperture 46 in casing to the position shown in FIG. 1 and the contact pins 38 and 40 slide into engagement with a socket (not shown) positioned within casing 10.
  • a socket (not shown) positioned within casing 10.
  • One pin is electrically connected by way of the socket directly to the batteries of the hairdryer while the other pin is connected to a terminal 48 of a switch 50.
  • the other terminal 52 of the switch 50 is connected to the fan motor 18.
  • the switch 50 can be operated from outside casing 10 to make contact to complete the circuit to either the heater unit 22 or the fan motor 18.
  • the switch is shown in the drawing in its off position.
  • Combustion of the charcoal rod is sustained by air which enters the heater through the perforations 34 in the sheath 32.
  • the switch 50 is moved to contact terminal 52 and the motor 18 is connected to the batteries.
  • the fan 16 is driven by the motor 22 and air is directed past the heater unit 22 to the outlet 12. The forced draft of air from the fan assists in the continued sustained combustion of the charcoal rod 26.
  • the air is heated by the rod 26.
  • a portable cordless hairdryer comprising a casing having an air outlet aperture therein, blower means within said casing to force a flow of air through said casing and out said air outlet aperture, a portable power source within said casing adapted to be selectively connected to said blower means to activate said blower means, an exothermic heater unit disposed within said casing and comprising a closed housing located between said air outlet aperture and said blower means in the path of flow of the air forced to flow through said casing, said housing forming a closed space therewithin and said housing having perforations formed therethrough affording communication between the space within said housing and the exterior of said housing, a core of solid fuel material combustible in air and capable of sustained combustion located within the closed space in said housing, a wire element enclosed within the space in said closed housing and disposed in contact with said core of solid combustible fuel material, an electrical circuit arranged for selectively connecting said portable power source to said wire element so that when said wire element is connected to said power source said wireelement incandesces and ignite
  • a hairdryer as set forth in claim 1, wherein said core of solid combustible fuel material is a charcoal rod completely enclosed within the space in said housing, said wire element is wound about the exterior of said rod, and each end of said wire element is selectively operably connected to said portable power source by said through said electrical circuit.

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  • Cosmetics (AREA)
US00288440A 1971-09-29 1972-09-12 Portable cordless hairdryer Expired - Lifetime US3797475A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4543971 1971-09-29

Publications (1)

Publication Number Publication Date
US3797475A true US3797475A (en) 1974-03-19

Family

ID=10437212

Family Applications (1)

Application Number Title Priority Date Filing Date
US00288440A Expired - Lifetime US3797475A (en) 1971-09-29 1972-09-12 Portable cordless hairdryer

Country Status (3)

Country Link
US (1) US3797475A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS4862556A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA968152A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4516561A (en) * 1982-09-30 1985-05-14 P D Manufacturing, Inc. Portable battery powered blower apparatus for fanning charcoal or other fuel
US4570358A (en) * 1982-11-15 1986-02-18 Ypsilon Limited Sports racket handle drying device
USD282879S (en) 1983-08-04 1986-03-04 Roberton Charlene A Nail polish dryer
US4700494A (en) * 1986-09-15 1987-10-20 Pridgen Danny W Apparatus for drying hair spray and other compositions
US4757183A (en) * 1985-05-22 1988-07-12 Braun Aktiengesellschaft Portable cordless electric hair dressing appliance utilizing stored heat
US4800654A (en) * 1987-10-15 1989-01-31 Mark R. Levin Handheld cordless hair dryer
US4939345A (en) * 1989-03-21 1990-07-03 Farina Michelle J Portable hair dryer assembly
US5873178A (en) * 1997-08-15 1999-02-23 Johnson; Jimmy L. Portable hand dryer
EP0937422A2 (en) 1998-02-18 1999-08-25 Collins, Hamilton P. II External auditory canal drying apparatus
WO2003025527A3 (en) * 2001-09-20 2003-07-31 Aradigm Corp Temperature controlling device for aerosol drug delivery
US20120125909A1 (en) * 2009-05-27 2012-05-24 Ondal Friseurtechnik Gmbh Hairdryer appliance
US9599367B1 (en) * 2003-10-01 2017-03-21 Carline Curry Portable battery operated heater
US9795200B2 (en) 2015-06-30 2017-10-24 Annmarie Annunziata Solar powered cordless hair dryer
US20210172651A1 (en) * 2019-12-06 2021-06-10 Matthew Alfred CROWE Electric space heater
US12193551B1 (en) * 2024-07-16 2025-01-14 Keira Valerie Castaneda Hair drying device with improved efficiency and improved security

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54171986U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1978-05-23 1979-12-05

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US835150A (en) * 1905-04-03 1906-11-06 John P Bowditch Whip-handle.
US900434A (en) * 1907-11-09 1908-10-06 George Siegfried Hair-drying device.
US1987899A (en) * 1931-10-16 1935-01-15 William F Gelsdorf Charcoal lighter
US2989049A (en) * 1957-11-22 1961-06-20 Crouzet Jean-Philippe Arrangement for protection against cold and inclement weather
US3397463A (en) * 1966-01-03 1968-08-20 Laing Nikolaus Hair dryers
US3509866A (en) * 1968-05-03 1970-05-05 Esther Lee Singleton Portable utilities cabinet
US3547100A (en) * 1967-02-17 1970-12-15 Yasumasa Usui Portable warming appliance for burning solid fuel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US835150A (en) * 1905-04-03 1906-11-06 John P Bowditch Whip-handle.
US900434A (en) * 1907-11-09 1908-10-06 George Siegfried Hair-drying device.
US1987899A (en) * 1931-10-16 1935-01-15 William F Gelsdorf Charcoal lighter
US2989049A (en) * 1957-11-22 1961-06-20 Crouzet Jean-Philippe Arrangement for protection against cold and inclement weather
US3397463A (en) * 1966-01-03 1968-08-20 Laing Nikolaus Hair dryers
US3547100A (en) * 1967-02-17 1970-12-15 Yasumasa Usui Portable warming appliance for burning solid fuel
US3509866A (en) * 1968-05-03 1970-05-05 Esther Lee Singleton Portable utilities cabinet

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4516561A (en) * 1982-09-30 1985-05-14 P D Manufacturing, Inc. Portable battery powered blower apparatus for fanning charcoal or other fuel
US4570358A (en) * 1982-11-15 1986-02-18 Ypsilon Limited Sports racket handle drying device
USD282879S (en) 1983-08-04 1986-03-04 Roberton Charlene A Nail polish dryer
US4757183A (en) * 1985-05-22 1988-07-12 Braun Aktiengesellschaft Portable cordless electric hair dressing appliance utilizing stored heat
US4700494A (en) * 1986-09-15 1987-10-20 Pridgen Danny W Apparatus for drying hair spray and other compositions
US4800654A (en) * 1987-10-15 1989-01-31 Mark R. Levin Handheld cordless hair dryer
US4939345A (en) * 1989-03-21 1990-07-03 Farina Michelle J Portable hair dryer assembly
US20070062526A1 (en) * 1996-11-21 2007-03-22 Aradigm Corporation Temperature controlling device for aerosol drug delivery
US6694975B2 (en) * 1996-11-21 2004-02-24 Aradigm Corporation Temperature controlling device for aerosol drug delivery
US7143766B2 (en) 1996-11-21 2006-12-05 Aradigm Corporation Temperature controlling device for aerosol drug delivery
US5873178A (en) * 1997-08-15 1999-02-23 Johnson; Jimmy L. Portable hand dryer
EP0937422A2 (en) 1998-02-18 1999-08-25 Collins, Hamilton P. II External auditory canal drying apparatus
US5979072A (en) * 1998-02-18 1999-11-09 Collins, Ii; Hamilton P. External auditory canal drying apparatus
WO2003025527A3 (en) * 2001-09-20 2003-07-31 Aradigm Corp Temperature controlling device for aerosol drug delivery
US9599367B1 (en) * 2003-10-01 2017-03-21 Carline Curry Portable battery operated heater
US20120125909A1 (en) * 2009-05-27 2012-05-24 Ondal Friseurtechnik Gmbh Hairdryer appliance
US8890035B2 (en) * 2009-05-27 2014-11-18 Exonda Salon Tools Gmbh Hairdryer appliance
US9795200B2 (en) 2015-06-30 2017-10-24 Annmarie Annunziata Solar powered cordless hair dryer
US20210172651A1 (en) * 2019-12-06 2021-06-10 Matthew Alfred CROWE Electric space heater
US12193551B1 (en) * 2024-07-16 2025-01-14 Keira Valerie Castaneda Hair drying device with improved efficiency and improved security

Also Published As

Publication number Publication date
JPS4862556A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-08-31
CA968152A (en) 1975-05-27

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Legal Events

Date Code Title Description
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

AS Assignment

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

Owner name: LAZERE FINANCIAL CORPORATION 60 EAST 42ND STREET,

Free format text: SECURITY INTEREST;ASSIGNOR:RONSON CORPORATION;REEL/FRAME:004304/0018

Effective date: 19840516

AS Assignment

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

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