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Patent US3837581A successfully refreshed from Google Patents.
US3837581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair dryer nozzles
Assignee: Continental Hair Products Inc
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Filing: 1973-10-11
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Granted: 1974-09-24
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Expires: 1993-10-11
Abstract
Abstract A nozzle for a hair dryer having a cylindrical barrel terminating in a circular output port. The nozzle includes a cylindrical section for frictionally engaging the output port end of the barrel, and a fluid accelerating section having an oblong opening for providing a flat main stream of air. The accelerating section includes a pair of arcuate surfaces which extend from the cylindrical section and define the long sides of the oblong opening. The arcuate surfaces include slots for providing auxiliary streams of air substantially parallel to the main stream. In one embodiment louver boards extend over the slots for directing the auxiliary streams.
Inventors
- 👤 E Orsoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:38
CPC Classifications
A; A45; A45D; A45D20/00; A45D20/04; A45D20/08; A45D20/10; A45D20/12; A45D20/122
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
76 words
A nozzle for an electric hair dryer having a barrel terminating in an output port through which pumped heated air is expelled, comprising: a coupling section for engaging the output port end of the hair dryer barrel; and a fluid accelerating section extending from the coupling section, said section having an oblong opening for providing from the expelled air a flat main stream of air and at least two slots for providing auxiliary streams of air.
Claim 2
Dependent Claim
76 words
A nozzle for an electric hair dryer having a barrel terminating in an output port through which pumped heated air is expelled, comprising: a coupling section for engaging the output port end of the hair dryer barrel; and a fluid accelerating section extending from the coupling section, said section having an oblong opening for providing from the expelled air a flat main stream of air and at least two slots for providing auxiliary streams of air.
Claim 3
Dependent Claim
24 words
A nozzle as defined in claim 1 wherein the oblong opening and slots extend in directions transverse to longitudinal axis of the dryer barrel.
Claim 4
Dependent Claim
16 words
A nozzle as defined in claim 1 wherein said slots and oblong opening are all parallel.
Claim 5
Dependent Claim
23 words
A nozzle as defined in claim 3 wherein said nozzle includes at least four of said slots in addition to said oblong opening.
Claim 6
Dependent Claim
51 words
A nozzle as defined in claim 1 wherein the accelerating section further includes at least two louver boards, each of the louver boards cooperating with a dIfferent one of the slots for directing the air exiting through the slots in a direction parallel to the longitudinal axis of the dryer barrel.
Claim 7
Dependent Claim
34 words
A nozzle as defined in claim 5 wherein said louver boards extend forwardly from said fluid accelerating section in a direction parallel to the dryer barrel, each louver board completely overlying its respective slot.
Claim 8
Dependent Claim
44 words
A nozzle as defined in claim 1 wherein said fluid accelerating section includes a pair of converging sections extending from the coupling section for providing the long sides of the oblong opening, each of the converging sections having at least one of the slots.
Claim 9
Dependent Claim
42 words
A nozzle as defined in claim 7 wherein at least one of the converging sections includes two parallel slots defining a rib between the slots, said rib having one of its surfaces parallel to the direction of flow of the main stream.
Claim 10
Dependent Claim
15 words
A nozzle as defined in claim 8 wherein each of the converging sections is arcuate.
Claim 11
Dependent Claim
27 words
A nozzle as defined in claim 8 wherein said rib extends forwardly in the direction of the flow of the main stream, thereby defining a louver board.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |