US3607133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removing carbon monoxide from room air and exhaust gas
Assignee: KACHITA CO Ltd
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Filing: 1969-10-20
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Granted: 1971-09-21
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Expires: 1989-10-20
Abstract
Abstract Apparatus for removing carbon monoxide continuously and efficiently from room air or automobile exhaust using an oxidizing catalyst containing a desiccative substance such as natural zeolite, active silica or active alumina includes a casing having a gas inlet and outlet on its lid section, and a slowly rotatable catalyst containing vessel of flat cylindrical shape closely disposed on the inner periphery of the casing. The air or gas to be purified passes over the catalyst twice, in opposite directions.
Inventors
- 👤 Osamu Hirao
- 👤 Tsutomu Kato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:55
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/10; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/62; B01D53/92; B01D53/94; B01D53/944; F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2803; F01N3/2832; F01N3/2839; F01N3/2846; F01N2250/00; F01N2250/12; F01N2290/00; F01N2290/02; F01N2290/06; F01N2330/00; F01N2330/08; F01N2370/00; F01N2370/02; F01N2370/04; F01N2450/00; F01N2450/30; F01N2490/00; F01N2490/16; Y; Y02; Y02A; Y02A50/00; Y02A50/20; Y10; Y10S; Y10S55/00; Y10S55/30; Y10S60/00; Y10S60/902
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
29 words
Apparatus as described in claim 1 wherein the desiccative substance mixed with the catalyst materials is selected from the group consisting of natural zeolite, active silica and active alumina.
Claim 2
Dependent Claim
36 words
Apparatus as described in claim 1 wherein the catalyst vessel houses therein a corrugated thin stainless steel board wound in a spiral form to divide the inner space of the vessel into a plurality of compartments.
Claim 3
Dependent Claim
26 words
Apparatus as described in claim 1 wherein the catalyst vessel is made of porcelain material and has a plurality of longitudinal holes for receiving catalyst granules.
Claim 4
Dependent Claim
23 words
Apparatus as described in claim 1 whErein the catalyst vessel is covered with a perforate material on the top and bottom sides thereof.
Claim 5
Dependent Claim
14 words
Apparatus as described in claim 5 wherein the perforate material is a wire net.
Claim 6
Dependent Claim
54 words
Apparatus according to claim 1 wherein said casing includes a hole formed therein between said gas inlet and said gas outlet; and comprising a support shaft rotatably received in said hole and coupled to said flat cylindrical vessel; said rotating means including means coupled to said support shaft for rotating said flat cylindrical vessel.
Claim 7
Dependent Claim
26 words
Apparatus according to claim 7 wherein said shaft includes a support ring coupled thereto and engaging said casing to support said shaft relative to said casing.
Claim 8
Dependent Claim
64 words
Apparatus according to claim 1 wherein said lid section includes a first gas distributing inner space communicating with said gas inlet and distributing gas to a first portion of said cylindrical vessel, and a second gas distributing inner space which is spaced from said first space and which communicates with said gas outlet for receiving gas from a second portion of said cylindrical vessel.
Claim 9
Dependent Claim
18 words
Apparatus according to claim 1 wherein said inlet and outlet are on opposite sides of said lid section.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |