# US 4,394,144 A · Dehumidifying container

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- Number: US 4,394,144 A
- Document ID: US4394144A
- Status: Granted
- Kind: A
- Application number: 06/299,263
- Filed: 1981-09-03
- Granted: 1983-07-19
- Earliest claimed: 1981-09-03
- Assignees: Kaken Chemical Co., Ltd.
- Inventors: Yoshio Aoki
- Web page: https://patentgrep.com/patent/US4394144A

## CPC

- B01D 53/261: {by adsorption}
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)

## 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.

## Claims

### Claim 1

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 (depends on 1)

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 3

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 4 (depends on 3)

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 5 (depends on 1, 2, 3, 4)

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 6 (depends on 1, 2, 3, 4)

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 7 (depends on 1, 2, 3, 4)

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 8 (depends on 1, 2, 3, 4)

The dehumidifier claimed in claim 1, 3, 2 or 4, wherein the lower end of the discharge pipe is tapered downwardly.