US5155925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable LPG-powered hair dryer
Assignee: Individual
•
Filing: 1991-12-19
•
Granted: 1992-10-20
•
Expires: 2011-12-19
Abstract
Abstract In order to make a hair dryer available outdoors or where a general power source is not available, an LPG powered hair dryer is provided. The hair dryer comprises a main body which can receive a bottle of LPG (liquified petroleum gas), and a burner in the main body for burning the LPG. The burner flame heats a double radiant plate arrangement in front of the burner and hot air is blow from the plate arrangement by a battery powered fan motor at the rear of the housing. A gas-interrupting valve, a gas-adjusting valve, an operation switch and a thermal sensor are also provided in the housing.
Inventors
- 👤 Wonchoel Choi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:50
CPC Classifications
A; A45; A45D; A45D20/00; A45D20/04; A45D20/06; A45D2020/065
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
277 words
A portable, gas fired hair dryer, comprising: a main body (1); receiving means (2) connected to said body for receiving a container of burnable gas; container fixing means (4) engageable with said receiving means for fixing a gas container to the body; a first conduit (16) having one end connected to said receiving means for receiving gas from a gas container received by said receiving means, said first conduit having an opposite end; a gas interrupting valve (10) and gas-adjusting valve (9) connected in series to each other and together connected to the opposite end of said first conduit, said gas-interrupting valve functioning when open to pass gas therethrough and when closed to interrupt a flow of gas therethrough, said gas-adjusting valve having a plunger for adjusting a flow of gas through said gas adjusting valve; a second conduit (15) having one end connected to said combined series connected gas-interrupting and gas-adjusting valves, said second conduit have an opposite end; an air intake (8) connected to the opposite end of said second conduit for mixing air with gas supplied through said second conduit; a burner containing a lighter for receiving and burning a gas plus air mixture from said air intake, said burner being connected to said air intake, said burner being positioned for discharging of flame in a forward direction toward a front of said main body; double plate means (5) positioned in said main body in front of said burner for being heated by a flame from said burner; and a valve operating switch movably connected to said main body and movable against said plunger for adjusting a flow of gas through said gas-adjusting valve.
Claim 2
Dependent Claim
277 words
A portable, gas fired hair dryer, comprising: a main body (1); receiving means (2) connected to said body for receiving a container of burnable gas; container fixing means (4) engageable with said receiving means for fixing a gas container to the body; a first conduit (16) having one end connected to said receiving means for receiving gas from a gas container received by said receiving means, said first conduit having an opposite end; a gas interrupting valve (10) and gas-adjusting valve (9) connected in series to each other and together connected to the opposite end of said first conduit, said gas-interrupting valve functioning when open to pass gas therethrough and when closed to interrupt a flow of gas therethrough, said gas-adjusting valve having a plunger for adjusting a flow of gas through said gas adjusting valve; a second conduit (15) having one end connected to said combined series connected gas-interrupting and gas-adjusting valves, said second conduit have an opposite end; an air intake (8) connected to the opposite end of said second conduit for mixing air with gas supplied through said second conduit; a burner containing a lighter for receiving and burning a gas plus air mixture from said air intake, said burner being connected to said air intake, said burner being positioned for discharging of flame in a forward direction toward a front of said main body; double plate means (5) positioned in said main body in front of said burner for being heated by a flame from said burner; and a valve operating switch movably connected to said main body and movable against said plunger for adjusting a flow of gas through said gas-adjusting valve.
Claim 3
Dependent Claim
41 words
A hair dryer according to claim 1, wherein said receiving means comprises a container receiving chamber defined in said main body, said container fixing means comprising a fixing screw engageable to said chamber for retaining a gas container in said chamber.
Claim 4
Dependent Claim
33 words
A hair dryer according to claim 1, including fan means in said main body for passing air through said main body, past said plate means out through the front of said main body.
Claim 5
Dependent Claim
25 words
A hair dryer according to claim 3, wherein said plate means comprises a pair of spaced apart plates extending across a front of said burner.
Claim 6
Dependent Claim
253 words
A portable, gas fired hair dryer, comprising: a main body (1); gas receiving means for receiving a supply of burnable gas in said main body; a first conduit (16) having one end connected to said gas receiving means for receiving gas therefrom said first conduit having an opposite end; a gas interrupting valve (10) and gas-adjusting valve (9) connected in series to each other and together connected to the opposite end of said first conduit, said gas-interrupting valve functioning when open to pass gas therethrough and when closed to interrupt a flow of gas therethrough, said gas-adjusting valve having a plunger for adjusting a flow of gas through said gas adjusting valve; a second conduit (15) having one end connected to said combined series connected gas-interrupting and gas-adjusting valves, said second conduit have an opposite end; an air intake (8) connected to the opposite end of said second conduit for mixing air with gas supplied through said second conduit; a burner containing a lighter for receiving and burning a gas plus air mixture from said air intake, said burner being connected to said air intake, said burner being positioned for discharging of flame in a forward direction toward a front of said main body; double plate means (5) positioned in said main body in front of said burner for being heated by a flame from said burner; and a valve operating switch movably connected to said main body and movable against said plunger for adjusting a flow of gas through said gas-adjusting valve.
Claim 7
Dependent Claim
253 words
A portable, gas fired hair dryer, comprising: a main body (1); gas receiving means for receiving a supply of burnable gas in said main body; a first conduit (16) having one end connected to said gas receiving means for receiving gas therefrom said first conduit having an opposite end; a gas interrupting valve (10) and gas-adjusting valve (9) connected in series to each other and together connected to the opposite end of said first conduit, said gas-interrupting valve functioning when open to pass gas therethrough and when closed to interrupt a flow of gas therethrough, said gas-adjusting valve having a plunger for adjusting a flow of gas through said gas adjusting valve; a second conduit (15) having one end connected to said combined series connected gas-interrupting and gas-adjusting valves, said second conduit have an opposite end; an air intake (8) connected to the opposite end of said second conduit for mixing air with gas supplied through said second conduit; a burner containing a lighter for receiving and burning a gas plus air mixture from said air intake, said burner being connected to said air intake, said burner being positioned for discharging of flame in a forward direction toward a front of said main body; double plate means (5) positioned in said main body in front of said burner for being heated by a flame from said burner; and a valve operating switch movably connected to said main body and movable against said plunger for adjusting a flow of gas through said gas-adjusting valve.
Claim 8
Dependent Claim
55 words
A hair dryer according to claim 5, wherein said gas receiving means comprises means in said main body for defining a gas chamber (19) said first conduit being connected to said gas chamber, and a gas injection valve (20) connected to said gas chamber for receiving a supply of burnable gas in said gas chamber.
Claim 9
Dependent Claim
25 words
A hair dryer according to claim 6, wherein said plate means comprises a pair of spaced apart plates extending across a front of said burner.
Claim 10
Dependent Claim
33 words
A hair dryer according to claim 5, including fan means in said main body for passing air through said main body, past said plate means out through the front of said main body.
Claim 11
Dependent Claim
41 words
A hair dryer according to claim 5, wherein said receiving means comprises a container receiving chamber defined in said main body, said container fixing means comprising a fixing screw engageable to said chamber for retaining a gas container in said chamber.
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) | 1995-10-20 | 1996-04-20 | 1996-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-20 | 2000-04-20 | 2000-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-20 | 2004-04-20 | 2004-10-20 | $7700.00 | Window Closed / Lapsed |