US3781519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair steamer
Assignee: Gillette Co LLC
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Filing: 1972-06-12
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Granted: 1973-12-25
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Expires: 1992-06-12
Abstract
Abstract A hair steamer comprising a steam generating chamber having at least one restricted nozzle for delivering a jet of steam, a heater for preheating and maintaining the chamber at a temperature above the boiling point of water, a tank for holding a supply of water separate from the chamber, manually actuatable supply means for introducing a limited quantity of water into the chamber from the supply tank, and air inlet means mounted adjacent the outlet of the nozzle for introducing a controlled quantity of air into the steam jet. A choke is provided for adjusting the ratio of air to steam.
Inventors
- 👤 J Martin
- 👤 M Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:57
CPC Classifications
A; A45; A45D; A45D19/00; A45D19/16
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
171 words
A portable hand-held steamer for applying adjustable quantities of steam and air to an article comprising a protective housing enclosing a steam generating chamber, said chamber having at least one restricted nozzle for delivering a jet of steam, a heater within said housing for preheating and maintaining said chamber at a temperature above the boiling point of water, a tank for holding a supply of water separate from said chamber, manually actuable supply means for introducing a limited quantity of water into said chamber from said supply tank, and air inlet means mounted adjacent to and outside of the outlet end of said nozzle for introducing air into said steam jet, said air inlet means comprising an open ended tube having a diameter substantially greater than that of said nozzle, said tube having its axis aligned with said nozzle to receive said jet and having its end adjacent said nozzle spaced therefrom to form an air gap to permit air to be drawn into said tube by said jet of steam.
Claim 2
Dependent Claim
171 words
A portable hand-held steamer for applying adjustable quantities of steam and air to an article comprising a protective housing enclosing a steam generating chamber, said chamber having at least one restricted nozzle for delivering a jet of steam, a heater within said housing for preheating and maintaining said chamber at a temperature above the boiling point of water, a tank for holding a supply of water separate from said chamber, manually actuable supply means for introducing a limited quantity of water into said chamber from said supply tank, and air inlet means mounted adjacent to and outside of the outlet end of said nozzle for introducing air into said steam jet, said air inlet means comprising an open ended tube having a diameter substantially greater than that of said nozzle, said tube having its axis aligned with said nozzle to receive said jet and having its end adjacent said nozzle spaced therefrom to form an air gap to permit air to be drawn into said tube by said jet of steam.
Claim 3
Dependent Claim
18 words
A steamer as claimed in claim 1 in which said heater comprises a thermostatically controlled electrical resistance heater.
Claim 4
Dependent Claim
17 words
A steamer as claimed in claim 2 in which said supply means comprises a positive displacement pump.
Claim 5
Dependent Claim
20 words
A steamer as claimed in claim 1 including a manually actuable choke for varying the size of said air gap.
Claim 6
Dependent Claim
50 words
A hair steamer as claimed in claim 4 including a manually actuable choke mounted for adjustable movement to and from a first position overlying said tube in which position the air gap is substantially unobstructed and a second position adjacent said nozzle in which position said air gap is restricted.
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) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |