US5143460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable humidifier
Assignee: Kaz USA Inc
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Filing: 1991-08-20
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Granted: 1992-09-01
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Expires: 2011-08-20
Abstract
Abstract A humidifier including a base defining a boiler cavity; a liquid supply supported on the base and having a discharge opening communicating with the boiler cavity and adapted to maintain a given level of liquid therein; an evaporation unit removably mounted on the base and including an electrically energized heater element projecting into the cavity and adapted to induce evaporation of liquid contained thereby, and a vapor passage defining having a receiving end communicating with the cavity so as to receive vapor therefrom and a discharge end for discharging the vapor received from the cavity; and an electrical supply for supplying electrical.
Inventors
- 👤 Jui-Shang Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:12
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/025
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
122 words
A humidifier comprising: a base means defining a boiler cavity; a liquid supply means supported on said base means and having a discharge opening communicating with said boiler cavity and adapted to maintain a given level of liquid therein; and an evaporation unit mounted on said base means and substantially unattached thereto so as to facilitate complete separation therefrom so as to provide access to said cavity; said unit comprising an electrically energized resistive heating element projecting into said boiler cavity and adapted to induce evaporation of liquid contained thereby, and a vapor passage defining means having a receiving end communicating with said cavity so as to receive vapor therefrom and a discharge end for discharging the vapor received from said cavity.
Claim 2
Dependent Claim
122 words
A humidifier comprising: a base means defining a boiler cavity; a liquid supply means supported on said base means and having a discharge opening communicating with said boiler cavity and adapted to maintain a given level of liquid therein; and an evaporation unit mounted on said base means and substantially unattached thereto so as to facilitate complete separation therefrom so as to provide access to said cavity; said unit comprising an electrically energized resistive heating element projecting into said boiler cavity and adapted to induce evaporation of liquid contained thereby, and a vapor passage defining means having a receiving end communicating with said cavity so as to receive vapor therefrom and a discharge end for discharging the vapor received from said cavity.
Claim 3
Dependent Claim
21 words
A humidifier according to claim 1 wherein said liquid supply means is a tank means removably mounted on said base means.
Claim 4
Dependent Claim
52 words
A humidifier according to claim 1 wherein said evaporation unit further comprises air passage defining means having an entrance for receiving air from the environment and an exit communicating with said vapor passage, and blower means for inducing air flow into said entrance and out of said exit into said vapor passage.
Claim 5
Dependent Claim
21 words
A humidifier according to claim 3 wherein said liquid supply means is a tank means removably mounted on said base means.
Claim 6
Dependent Claim
59 words
A humidifier according to claim 1 wherein said base means defines reservoir means including said cavity and a liquid supply channel having an inlet end and an outlet end communicating with said cavity, and said discharge opening of said liquid supply means communicates with said inlet end of said channel so as to supply liquid therethrough to said cavity.
Claim 7
Dependent Claim
21 words
A humidifier according to claim 5 wherein said liquid supply means is a tank means removably mounted on said base means.
Claim 8
Dependent Claim
52 words
A humidifier according to claim 5 wherein said evaporation unit further comprises air passage defining means having an entrance for receiving air from the environment and an exit communicating with said vapor passage, and blower means for inducing air flow into said entrance and out of said exit into said vapor passage.
Claim 9
Dependent Claim
21 words
A humidifier according to claim 7 wherein said liquid supply means is a tank means removably mounted on said base means.
Claim 10
Dependent Claim
24 words
A humidifier according to claim 1 including an enclosure means mounted on said evaporation unit and defining a restricted chamber enclosing said heating element.
Claim 11
Dependent Claim
23 words
A humidifier according to claim 9 wherein said enclosure means further defines orifice means providing liquid communication between said cavity and said chamber.
Claim 12
Dependent Claim
18 words
A humidifier according to claim 1 including electrical supply means for supplying electrical energy to said heating element.
Claim 13
Dependent Claim
18 words
A humidifier according to claim 11 wherein said electrical supply means is retained completely in said evaporation unit.
Claim 14
Dependent Claim
18 words
A humidifier according to claim 12 wherein said base means is devoid of electrical components and electrical circuitry.
Claim 15
Dependent Claim
18 words
A humidifier according to claim 1 wherein said base means is devoid of electrical components and electrical circuitry.
Claim 16
Dependent Claim
16 words
A humidifier according to claim 1 wherein said base means is an integrally formed unitary structure.
Claim 17
Dependent Claim
16 words
A humidifier according to claim 1 including latch means securing said evaporation unit to said base.
Claim 18
Dependent Claim
15 words
A humidifier according to claim 16 wherein said latch means is a manually operated latch.
Claim 19
Dependent Claim
110 words
A humidifier comprising: a base means defining a boiler cavity; a liquid supply means communicating with said boiler cavity and adapted to maintain a given level of liquid therein; an evaporation unit mounted on said base means and comprising an electrically energized heater means projecting into said cavity and adapted to induce evaporation of liquid contained thereby, and a vapor passage defining a receiving end communicating with said cavity so as to receive vapor therefrom and a discharge end for discharging the vapor received from said cavity; electrical supply means for supplying electrical energy to said heater means; and an enclosure means defining a restricted chamber enclosing said heater means.
Claim 20
Dependent Claim
110 words
A humidifier comprising: a base means defining a boiler cavity; a liquid supply means communicating with said boiler cavity and adapted to maintain a given level of liquid therein; an evaporation unit mounted on said base means and comprising an electrically energized heater means projecting into said cavity and adapted to induce evaporation of liquid contained thereby, and a vapor passage defining a receiving end communicating with said cavity so as to receive vapor therefrom and a discharge end for discharging the vapor received from said cavity; electrical supply means for supplying electrical energy to said heater means; and an enclosure means defining a restricted chamber enclosing said heater means.
Claim 21
Dependent Claim
23 words
A humidifier according to claim 11 wherein said enclosure means further defines orifice means providing liquid communication between said cavity and said chamber.
Claim 22
Dependent Claim
16 words
A humidifier according to claim 12 wherein said enclosure means is supported by said evaporation unit.
Claim 23
Dependent Claim
100 words
A humidifier comprising: a base means defining a reservoir; a tank means supported on said base means and adapted to maintain a given liquid level in said reservoir, said tank means being substantially unattached to said base means so as to facilitate complete separation therefrom; and an evaporation unit supported on said base means adjacent to said tank means and substantially unattached to said base means so as to facilitate complete separation therefrom, said humidification unit comprising electrically energized resistive heater means projecting into said reservoir, and wherein said humidification unit and said tank means substantially cover said base means.
Claim 24
Dependent Claim
100 words
A humidifier comprising: a base means defining a reservoir; a tank means supported on said base means and adapted to maintain a given liquid level in said reservoir, said tank means being substantially unattached to said base means so as to facilitate complete separation therefrom; and an evaporation unit supported on said base means adjacent to said tank means and substantially unattached to said base means so as to facilitate complete separation therefrom, said humidification unit comprising electrically energized resistive heater means projecting into said reservoir, and wherein said humidification unit and said tank means substantially cover said base means.
Claim 25
Dependent Claim
19 words
A humidifier according to claim 21 wherein said base means and said reservoir are an integrally formed one-piece unit.
Claim 26
Dependent Claim
18 words
A humidifier according to claim 18 wherein said base means is devoid of electrical components and electrical circuitry.
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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) | 1995-09-01 | 1996-03-02 | 1996-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-01 | 2000-03-02 | 2000-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-01 | 2004-03-02 | 2004-09-01 | $7700.00 | Window Closed / Lapsed |