Patent US3289683A successfully refreshed from Google Patents.
Patent US3846047A successfully refreshed from Google Patents.
US3846047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable hair dryer
Assignee: Panasonic Electric Works Co Ltd
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Filing: 1973-02-28
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Granted: 1974-11-05
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Expires: 1993-02-28
Abstract
Abstract A foldable hair dryer consisting of a hollow nozzle assembly made up of a cylindrical portion and tangentially extending nozzle coaxially fitted into a handle assembly having a cylindrical portion and tangentially extending handle, the two assemblies being generally symmetrical. The thickness of the nozzle, handle and their associated cylindrical portions, measured axially, is approximately the same resulting in a compact, ''''flat'''' construction. Within the cylindrical portion of the nozzle assembly is mounted a motor and fan assembly also of ''''flat'''' configuration in which the blades of the fan are peripherally disposed about the motor. The nozzle is fitted with a heating element. The nozzle and handle assemblies are coaxially pivoted for movement between an operating condition in which the nozzle and handle are in ''''L'''' configuration and a collapsed condition in which the nozzle and handle lie compactly side by side. A switch on the handle is operated by the nozzle incident to the collapsing movement to insure that the motor and heating element are both turned off in the collapsed state.
Inventors
- 👤 Y Wada
- 👤 H Okutu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:59
CPC Classifications
A; A45; A45D; A45D20/00; A45D20/04; A45D20/08; A45D20/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
123 words
A hair dryer comprising, in combination, a hollow handle assembly made up of a cylindrical portion and a tangentially extending handle, a hollow nozzle assembly made up of a cylindrical portion and a tangentially extending nozzle, one of the cylindrical portions having a cylindrical sidewall and the other being open-sided for the nested fitting together of the two cylindrical portions in coaxial relationship, a motor and fan assembly mounted within the cylindrical sidewall for discharge of air through the nozzle, the two assemblies being generally symmetrical and coaxially pivoted together for relative scissoring movement between an operating condition in which the handle and nozzle are in ''''L'''' configuration and a collapsed condition in which the handle and nozzle lie compactly side by side.
Claim 2
Dependent Claim
123 words
A hair dryer comprising, in combination, a hollow handle assembly made up of a cylindrical portion and a tangentially extending handle, a hollow nozzle assembly made up of a cylindrical portion and a tangentially extending nozzle, one of the cylindrical portions having a cylindrical sidewall and the other being open-sided for the nested fitting together of the two cylindrical portions in coaxial relationship, a motor and fan assembly mounted within the cylindrical sidewall for discharge of air through the nozzle, the two assemblies being generally symmetrical and coaxially pivoted together for relative scissoring movement between an operating condition in which the handle and nozzle are in ''''L'''' configuration and a collapsed condition in which the handle and nozzle lie compactly side by side.
Claim 3
Dependent Claim
48 words
The combination as claimed in claim 1 in which the motor and fan assembly is of flat configuration with the blades of the fan being radially disposed about the periphery of the motor and having such limited axial dimension as to permit accommodation within the nested cylindrical portions.
Claim 4
Dependent Claim
39 words
The combination as set forth in claim 2 in which the nested cylindrical portions are centrally provided with registering air inlet ports for admission of inlet air which is acted upon by the blades and discharged through the nozzle.
Claim 5
Dependent Claim
57 words
The combination as claimed in claim 1 in which the thickness in the axial direction of the cylindrical portions, nozzle and handle is approximately the same to produce a dryer which is generally flat sided defining a cylindrical compartment of flat configuration, the motor and fan assembly being of conforming shape and entirely contained in the compartment.
Claim 6
Dependent Claim
70 words
The combination as claimed in claim 1 in which a switch for the motor is provided in the surface of the handle which faces the nozzle, the switch having an operator which extends beyond such surface when the switch is in the ''''on'''' condition, with the result that when the handle and nozzle are collapsed the nozzle bears upon the operator to restore the switch safely to its ''''off'''' condition.
Claim 7
Dependent Claim
26 words
The combination as claimed in claim 5 in which the switch is of the rocker type rockable in opposite directions from a central flush off condition.
Claim 8
Dependent Claim
54 words
The combination as claimed in claim 1 in which each of the assemblies consists of mated, cup-shaped right and left-hand halves to form a hollow central space, each assembly having respective fasteners so that the halves of the outer one of the assemblies may be assembled over the inner assembly to nest the latter.
Claim 9
Dependent Claim
136 words
A hair dryer comprising, in combination, a hollow nozzle assembly made up of a cylindrical portion and a tangentially extending nozzle, the cylindrical portion having a cylindrical sidewall, a motor and fan assembly axially centered within the cylindrical sidewall for discharge of air through the nozzle, and a hollow handle assembly made up of a cylindrical portion and a tangentially extending handle, the two assemblies being generally symmetrical and with the cylindrical portion of the handle assembly being open sided so as to snugly and coaxially nest within it the cylindrical portion of the nozzle assembly, the two assemblies being Coaxially pivoted together for relative scissoring movement between an operating condition in which the handle and nozzle are in ''''L'''' configuration and a collapsed condition in which the handle and nozzle lie compactly side by side.
Claim 10
Dependent Claim
136 words
A hair dryer comprising, in combination, a hollow nozzle assembly made up of a cylindrical portion and a tangentially extending nozzle, the cylindrical portion having a cylindrical sidewall, a motor and fan assembly axially centered within the cylindrical sidewall for discharge of air through the nozzle, and a hollow handle assembly made up of a cylindrical portion and a tangentially extending handle, the two assemblies being generally symmetrical and with the cylindrical portion of the handle assembly being open sided so as to snugly and coaxially nest within it the cylindrical portion of the nozzle assembly, the two assemblies being Coaxially pivoted together for relative scissoring movement between an operating condition in which the handle and nozzle are in ''''L'''' configuration and a collapsed condition in which the handle and nozzle lie compactly side by side.
Claim 11
Dependent Claim
54 words
The combination as claimed in claim 8 in which the cylindrical portion of the nozzle assembly is centrally open to define an annulus having a pair of circular inner edges and in which the cylindrical portion of the handle assembly overlies and mates with the inner edges for relative pivoting of the two assemblies.
Claim 12
Dependent Claim
49 words
The combination as claimed in claim 9 in which the inner edges of the nozzle assembly are notched and in which the cylindrical portion of the handle assembly has registering projections to provide a bayonet type connection to keep the cylindrical portions assembled together while permitting relative rocking movement.
Claim 13
Dependent Claim
31 words
The combination as claimed in claim 8 in which interengaging stop surfaces are provided on the two assemblies to limit scissoring movement into operating condition thereby to define the ''''L'''' configuration.
References Cited (Backward Citations)
FR1091797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |