US4173231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair dryer attachment
Assignee: Panasonic Electric Works Co Ltd
•
Filing: 1977-10-31
•
Granted: 1979-11-06
•
Expires: 1997-10-31
Abstract
Abstract A hair dryer attachment improved in the effect of application of hot air from dryer body to hair wound on the attachment and in the function of achieving hair dressing with natural feeling is provided. A substantially cylindrical body of the attachment mounted at an open end to air-blowing port of the dryer body has hot-air delivery ports respectively extending between respective arrays of hair combing and holding bristles and in direction transversing the longitudinal axis of the cylindrical body as spaced from one another, and each delivery port has a width in said direction smaller than its depth in direction of communicating with inner hollow space of the cylindrical body. Such width of the delivery ports is preferably made gradually smaller as the ports approach closed tip end of the attachment opposing the open end.
Inventors
- 👤 Koichi Isino
- 👤 Hisakichi Nose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:06
CPC Classifications
A; A45; A45D; A45D20/00; A45D20/48; A45D20/50
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
237 words
A hair dryer attachment comprising an elongate cylindrical body closed at an axial end and opened at the other axial end for mounting the body to an air blow-off port of a hair dryer, said body having a longitudinal axis and comprising a plurality of parallel ribs extending transversely relative to said longitudinal axis, a plurality of longitudinally spaced slots located between said ribs, said transverse ribs extending transversely beyond said slots to form lateral projections, and an elongate bristle fixture comprising a plurality of parallel bristle bases extending transversely relative to said longitudinal axis and interconnected by longitudinal ribs, the quantity and shape of said bases corresponding to that of said transverse ribs in said cylindrical body, and a plurality of rows of bristles extending from respective ones of said bristle bases, said bristle fixture being mounted on said body, with said bristle bases being fitted over said transverse ribs and with both ends of said transverse bristle bases engaging said lateral projections of the body, said slots each having a depth extending in a direction substantially perpendicular to said longitudinal axis for allowing an air stream from the hair dryer to be blown through the slot in a direction perpendicular to said axis, and said slots and rows of bristles lying substantially in directions intersecting said longitudinal axis at right angles to deliver said blown air stream to hair caught between the respective bristle rows.
Claim 2
Dependent Claim
237 words
A hair dryer attachment comprising an elongate cylindrical body closed at an axial end and opened at the other axial end for mounting the body to an air blow-off port of a hair dryer, said body having a longitudinal axis and comprising a plurality of parallel ribs extending transversely relative to said longitudinal axis, a plurality of longitudinally spaced slots located between said ribs, said transverse ribs extending transversely beyond said slots to form lateral projections, and an elongate bristle fixture comprising a plurality of parallel bristle bases extending transversely relative to said longitudinal axis and interconnected by longitudinal ribs, the quantity and shape of said bases corresponding to that of said transverse ribs in said cylindrical body, and a plurality of rows of bristles extending from respective ones of said bristle bases, said bristle fixture being mounted on said body, with said bristle bases being fitted over said transverse ribs and with both ends of said transverse bristle bases engaging said lateral projections of the body, said slots each having a depth extending in a direction substantially perpendicular to said longitudinal axis for allowing an air stream from the hair dryer to be blown through the slot in a direction perpendicular to said axis, and said slots and rows of bristles lying substantially in directions intersecting said longitudinal axis at right angles to deliver said blown air stream to hair caught between the respective bristle rows.
Claim 3
Dependent Claim
44 words
A hair dryer attachment according to claim 1, wherein said body further includes a longitudinally extending rib positioned centrally of said slots, said longitudinal ribs of the bristle fixture clampingly engaging said longitudinal rib of said body to secure the fixture to the body.
References Cited (Backward Citations)
US883598A
Cited
US1642636A
Cited
US1716617A
Cited
US1833434A
Cited
US2862226A
Cited
US3599345A
Cited
US3931826A
Cited
US3929142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-11-05 | 1983-05-07 | 1983-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-05 | 1987-05-07 | 1987-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-05 | 1991-05-07 | 1991-11-06 | $7700.00 | Window Closed / Lapsed |