US4500479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidifier
Assignee: Soken Inc
•
Filing: 1982-08-02
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Granted: 1985-02-19
•
Expires: 2002-08-02
Abstract
Abstract An air humidifier having a humidifier element provided with an air passage constructed by a water-absorbable material. The air is humidified as it flows through the air passage in the humidifier element.
Inventors
- 👤 Akira Fukami
- 👤 Hiroki Noguchi
- 👤 Hiroshi Hamaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:37
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/21; B01F23/215; Y; Y10; Y10S; Y10S261/00; Y10S261/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
139 words
An automobile humidifier mounted behind the passenger compartment of an automobile provided with conventional air conditioning means having air heating and cooling functions, said humidifier comprising: an air duct mounted behind the passenger compartment of an automobile and having an air inlet and an air outlet from and to, respectively, the compartment; a humidifier element in said duct having air passages therethrough, the walls of which are constructed of high water absorbing material, said passages being adapted to be inclined downward, said element having a laminated structure comprising alternating non-corrugated sheet material and corrugated spacer sheet material of highly water absorbable paper containing activated carbon fibers; a blower disposed in said duct for blowing air through said passages; nozzle means for applying water into the upper ends of said passages; and means for supplying said nozzle means with water.
Claim 2
Dependent Claim
139 words
An automobile humidifier mounted behind the passenger compartment of an automobile provided with conventional air conditioning means having air heating and cooling functions, said humidifier comprising: an air duct mounted behind the passenger compartment of an automobile and having an air inlet and an air outlet from and to, respectively, the compartment; a humidifier element in said duct having air passages therethrough, the walls of which are constructed of high water absorbing material, said passages being adapted to be inclined downward, said element having a laminated structure comprising alternating non-corrugated sheet material and corrugated spacer sheet material of highly water absorbable paper containing activated carbon fibers; a blower disposed in said duct for blowing air through said passages; nozzle means for applying water into the upper ends of said passages; and means for supplying said nozzle means with water.
Claim 3
Dependent Claim
15 words
An automobile humidifier according to claim 1 wherein the structure is of rolled layer configuration.
Claim 4
Dependent Claim
16 words
A automobile humidifier according to claim 1 wherein the non-corrugated sheets are flat and substantially parallel.
Claim 5
Dependent Claim
34 words
A humidifier according to claim 1, wherein said water-absorbable material is a porous ceramic material and said humidifier element is produced by an extrusion from said porous ceramic material to have an integral honeycomb-form.
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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) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |