US4419302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam generator
Assignee: Panasonic Holdings Corp
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Filing: 1980-09-26
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Granted: 1983-12-06
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Expires: 2000-09-26
Abstract
Abstract PCT No. PCT/JP80/00223 Sec. 371 Date May 28, 1981 Sec. 102(e) Date May 28, 1981 PCT Filed Sep. 26, 1980 PCT Pub. No. WO81/00903 PCT Pub. Date Apr. 2, 1981.This invention relates to a steam generator for evaporating from a vaporizing portion (17) thereof a liquid (12) sucked up by means of a liquid sucking-up member (10) to provide a steam generator which is capable of vaporizing a liquid efficiently in a short time by application of heat from a heating unit (13) and air fed from a fan (15).
Inventors
- 👤 Atsushi Nishino
- 👤 Tadashi Suzuki
- 👤 Kazunori Sonetaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:37
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/025; A; A61; A61M; A61M11/00; A61M11/04; A61M11/041; A61M11/042; F22; F22B; F22B1/00; F22B1/28; F22B1/284; F22B27/00; Y; Y10; Y10S; Y10S261/00; Y10S261/65
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
217 words
A steam generator comprising a container having an upper vaporization chamber and a lower liquid storage chamber, means for partitioning the upper and lower chambers from each other, said vaporization chamber having a gas charge inlet port enabling a gas to be charged into said vaporization chamber and a discharge port for discharging steam generated within said vaporization chamber; a suck-up member disposed to extend into the upper and lower chambers within said container so that one end portion of said suck-up member is immersed in a liquid contained in said lower storage chamber while the other end portion extends into the upper chamber; and heating unit means provided at said other end portion of the suck-up member for heating and vaporizing the liquid absorbed by the suck-up member at the one end portion when it reaches the other end portion of said suck-up member, said heating unit means being in the form of a wire or band and a metal oxide or metallic double oxide layer formed on said wire or band to thereby increase the surface area of the heating unit means in contact with the liquid and improve thermal transmission to vaporize the liquid, said vaporized liquid being entrained by a gas passed through said gas charge port for discharge through said discharge port.
Claim 2
Dependent Claim
217 words
A steam generator comprising a container having an upper vaporization chamber and a lower liquid storage chamber, means for partitioning the upper and lower chambers from each other, said vaporization chamber having a gas charge inlet port enabling a gas to be charged into said vaporization chamber and a discharge port for discharging steam generated within said vaporization chamber; a suck-up member disposed to extend into the upper and lower chambers within said container so that one end portion of said suck-up member is immersed in a liquid contained in said lower storage chamber while the other end portion extends into the upper chamber; and heating unit means provided at said other end portion of the suck-up member for heating and vaporizing the liquid absorbed by the suck-up member at the one end portion when it reaches the other end portion of said suck-up member, said heating unit means being in the form of a wire or band and a metal oxide or metallic double oxide layer formed on said wire or band to thereby increase the surface area of the heating unit means in contact with the liquid and improve thermal transmission to vaporize the liquid, said vaporized liquid being entrained by a gas passed through said gas charge port for discharge through said discharge port.
Claim 3
Dependent Claim
40 words
A steam generator according to claim 1 further including gas supply means for charging gas into the vaporization chamber to provide a gas flow rate greater than approximately 0.1 m/sec at a point where the gas contacts the suck-up member.
Claim 4
Dependent Claim
36 words
A steam generator according to claim 1, wherein said suck-up member is made of an inorganic material having capillary action and selected from the group consisting of glass fibers, alkali-proof fibers, silica fibers and alumina fibers.
Claim 5
Dependent Claim
19 words
A steam generator according to claim 3, wherein said inorganic material is in the form of cloths or fabrics.
Claim 6
Dependent Claim
47 words
A steam generator according to claim 1, wherein said suck-up member is made of at least one member selected from cloths or fabrics of materials selected from the group consisting of novolac fibers, metallic fibers, ceramic fibers, asbestos and carbon fibers, heat-resistant porous materials and foamed materials.
Claim 7
Dependent Claim
30 words
A steam generator according to claim 1, 3, 4 or 5 wherein said suck-up member is constituted of a material having a water suction rate greater than approximately 1.0 mm/sec.
Claim 8
Dependent Claim
29 words
A steam generator according to claim 1, wherein said wire or band is made from material selected from the group consisting of Ni-Cr, Fe-Cr, Fe-Cr-Al, Fe-Cr-Al-Y and stainless steel.
Claim 9
Dependent Claim
26 words
A steam generator according to claim 7, wherein said metal oxide or metallic double oxide is in the form of a spray-coating on said heating member.
Claim 10
Dependent Claim
27 words
A steam generator according to claim 7, further comprising a heat-resistant alloy layer provided between said heating member and said metal oxide or metallic double oxide layer.
Claim 11
Dependent Claim
21 words
A steam generator according to claim 7, wherein a sealant layer is formed on said metal oxide or metallic double oxide.
Claim 12
Dependent Claim
17 words
A steam generator according to claim 10, wherein said sealant layer is made of a fluorine-containing resin.
Claim 13
Dependent Claim
33 words
A steam generator according to claim 11, wherein said fluorine-containing resin includes at least one member selected from the group consisting of ethylene tetrafluoride resin, propylene tetrafluoride copolymer resin and ethylene trifluoride resin.
Claim 14
Dependent Claim
28 words
A steam generator according to claim 1, wherein said heating unit means is substantially covered by a portion of said suck-up member extending around the outer surface thereof.
Claim 15
Dependent Claim
25 words
The apparatus of claim 1, wherein said such up member includes a wick having capillary action to draw and contain liquid within the vaporization chamber.
Claim 16
Dependent Claim
18 words
The apparatus of claim 14, wherein said heating means is disposed within ambient air in the vaporization chamber.
Claim 17
Dependent Claim
36 words
The apparatus of claim 1, wherein said upper and lower chambers are substantially entirely partitioned from each other so that the only liquid communicating directly with the vaporization chamber is substantially contained within the suck-up member.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |