US4394144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehumidifying container
Assignee: Kaken Pharmaceutical Co Ltd
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Filing: 1981-09-03
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Granted: 1983-07-19
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Expires: 2001-09-03
Abstract
Abstract A dehumidifying container comprises an inner container having an opening at its upper end, and a bottom portion. The inner container is filled with a dehumidifying agent and has a discharge pipe provided upright at the center of its bottom portion. The discharge pipe has at least one slit in a wall thereof and an open lower end which protrudes downwardly through the bottom portion of the inner container. The inner container is detachably fitted into an outer container in such a manner that a space having a predetermined volume is formed between the respective bottom portions of the inner and outer containers. The dehumidifying agent absorbs moisture from the air and the so formed solution of the agent flows readily through the or each slit in the discharge pipe out through the open lower end of the pipe, and into said space. The upper end of the pipe is also open to assist such flow.
Inventors
- 👤 Yoshio Aoki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:19
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26; B01D53/261
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
126 words
A dehumidifier, comprising: a dehumidifying agent; an outer container; and an inner container having an upper end and a bottom portion interconnected with a side wall, said inner container containing said dehumidifying agent therein, said container having an opening at its upper end and having a discharge pipe provided upright from a center of said bottom portion, said discharge pipe having at least one slit in a wall thereof in the form of a spiral, said discharge pipe having respective openings at its upper and lower ends, said inner container being detachably fitted into said outer container in such a manner that a space having a predetermined volume is formed between said bottom portion of said inner container and a bottom portion of said outer container.
Claim 2
Dependent Claim
126 words
A dehumidifier, comprising: a dehumidifying agent; an outer container; and an inner container having an upper end and a bottom portion interconnected with a side wall, said inner container containing said dehumidifying agent therein, said container having an opening at its upper end and having a discharge pipe provided upright from a center of said bottom portion, said discharge pipe having at least one slit in a wall thereof in the form of a spiral, said discharge pipe having respective openings at its upper and lower ends, said inner container being detachably fitted into said outer container in such a manner that a space having a predetermined volume is formed between said bottom portion of said inner container and a bottom portion of said outer container.
Claim 3
Dependent Claim
49 words
The dehumidifier claimed in claim 1 wherein said inner container side wall is solid so that solution formed by said dehumidifying agent contacting air is conveyed from said inner container to said bottom portion of said outer container only through said at least one slit in said discharge pipe.
Claim 4
Dependent Claim
138 words
A dehumidifier, comprising: a dehumidifying agent; an outer container; and an inner container having an upper end and a bottom portion interconnected with a side wall, said inner container containing said dehumidifying agent therein, said inner container having an opening at its upper end and a discharge pipe provided upright from a center of said bottom portion, said discharge pipe having at least one slit which continuously extends in a longitudinal direction of said pipe in a wall thereof and along a substantial length of said wall, said discharge pipe having respective openings at its upper and lower ends, said inner container being detachably fitted into said outer container in such a manner that a space having a predetermined volume is formed between said bottom portion of said inner container and a bottom portion of said outer container.
Claim 5
Dependent Claim
138 words
A dehumidifier, comprising: a dehumidifying agent; an outer container; and an inner container having an upper end and a bottom portion interconnected with a side wall, said inner container containing said dehumidifying agent therein, said inner container having an opening at its upper end and a discharge pipe provided upright from a center of said bottom portion, said discharge pipe having at least one slit which continuously extends in a longitudinal direction of said pipe in a wall thereof and along a substantial length of said wall, said discharge pipe having respective openings at its upper and lower ends, said inner container being detachably fitted into said outer container in such a manner that a space having a predetermined volume is formed between said bottom portion of said inner container and a bottom portion of said outer container.
Claim 6
Dependent Claim
49 words
The dehumidifier claimed in claim 3 wherein said inner container side wall is solid so that solution formed by said dehumidifying agent contacting air is conveyed from said inner container to said bottom portion of said outer container only through said at least one slit in said discharge pipe.
Claim 7
Dependent Claim
29 words
The dehumidifier claimed in claim 1, 3, 2 or 4, wherein said open lower end of said discharge pipe protrudes downwardly from said bottom portion of said inner container.
Claim 8
Dependent Claim
25 words
The dehumidifier claimed in claim 1, 3, 2 or 4, wherein said discharge pipe is detachably mounted to said bottom portion of said inner container.
Claim 9
Dependent Claim
29 words
The dehumidifier claimed in claim 1, 3, 2 or 4, wherein the upper open end of said discharge pipe is flush with said upper end of said inner container.
Claim 10
Dependent Claim
21 words
The dehumidifier claimed in claim 1, 3, 2 or 4, wherein the lower end of the discharge pipe is tapered downwardly.
References Cited (Backward Citations)
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Cited
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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) | 1986-07-18 | 1987-01-17 | 1987-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-18 | 1991-01-17 | 1991-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-18 | 1995-01-17 | 1995-07-19 | $7700.00 | Window Closed / Lapsed |