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US5015442A Expired / Lapsed US ⏱️ 0.0 years remaining

Sterilizing/deodorizing apparatus

Assignee: Tokai Kogyo Co Ltd
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Filing: 1989-02-24
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Granted: 1991-05-14
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Expires: 2009-02-24
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Abstract

Abstract A sterilizing/deodorizing apparatus having a fan for creating an air flow in one direction in a box-like body. The body has divided air passages, one of the air passages having an ozonizer and an air-permeable ozone-decomposing catalyzer, and the other air passage simply allowing untreated air to flow therethrough.

Inventors

  • 👤 Yoichi Hirai

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 06:53
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/16; A61L9/18; A61L9/20; Y; Y10; Y10S; Y10S261/00; Y10S261/88

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 326 words
A sterilizing/deodorizing apparatus for treating air, comprising: a substantially hollow box-like body defining therein first and second air receiving chambers; an air inlet formed in said body in communication with said first chamber to permit untreated air to be supplied thereto; an air outlet provided in said body in communication with said second chamber to permit air to be discharged therefrom; divider wall means mounted within said body for defining generally elongate first and second air passages which are isolated from one another and each of which has inlet and outlet ends providing communication with said first and second chambers, respectively; means positioned within said body for creating air flow through said body from said inlet to said outlet; flow adjusting means provided in said second passage for adjustably controlling the ratio of flows through said first and second passages by controlling the amount of flow through said second passage, said flow adjusting means being positioned adjacent the inlet end to said second passage; an ozone generating means disposed within said first passage for generating ozone in the air passing from said first chamber through said first passage to said second chamber, said ozone generating means comprising an ultraviolet ray lamp which radiated ultraviolet rays of a wavelength of about 185 nm; means movably supporting said lamp for movement between a first position wherein the lamp is disposed within said first passage at a substantial distance downstream from the inlet end thereof, and a second position wherein the lamp is disposed closely adjacent the inlet end to said first passage; an ozone-decomposing catalyzer disposed within said first passage downstream of said ozone generating means; and said second passage being free of air treating devices and being sized such that, when said second passage is fully open, most of the untreated air flowing through the inlet into said first chamber flows untreated through said second passage into said second chamber so as to bypass said first passage.
Claim 2
Dependent Claim 326 words
A sterilizing/deodorizing apparatus for treating air, comprising: a substantially hollow box-like body defining therein first and second air receiving chambers; an air inlet formed in said body in communication with said first chamber to permit untreated air to be supplied thereto; an air outlet provided in said body in communication with said second chamber to permit air to be discharged therefrom; divider wall means mounted within said body for defining generally elongate first and second air passages which are isolated from one another and each of which has inlet and outlet ends providing communication with said first and second chambers, respectively; means positioned within said body for creating air flow through said body from said inlet to said outlet; flow adjusting means provided in said second passage for adjustably controlling the ratio of flows through said first and second passages by controlling the amount of flow through said second passage, said flow adjusting means being positioned adjacent the inlet end to said second passage; an ozone generating means disposed within said first passage for generating ozone in the air passing from said first chamber through said first passage to said second chamber, said ozone generating means comprising an ultraviolet ray lamp which radiated ultraviolet rays of a wavelength of about 185 nm; means movably supporting said lamp for movement between a first position wherein the lamp is disposed within said first passage at a substantial distance downstream from the inlet end thereof, and a second position wherein the lamp is disposed closely adjacent the inlet end to said first passage; an ozone-decomposing catalyzer disposed within said first passage downstream of said ozone generating means; and said second passage being free of air treating devices and being sized such that, when said second passage is fully open, most of the untreated air flowing through the inlet into said first chamber flows untreated through said second passage into said second chamber so as to bypass said first passage.
Claim 3
Dependent Claim 33 words
An apparatus according to claim 1, wherein said ozone-decomposing catalyzer extends transversely across said first passage adjacent the outlet end thereof so that all air flowing through said first passage must pass therethrough.
Claim 4
Dependent Claim 29 words
An apparatus according to claim 2, wherein a sterilizing ultraviolet ray lamp which radiates ultraviolet rays of a wavelength of about 254 nm is positioned within said second chamber.

References Cited (Backward Citations)

US1932379A Cited
US2638644A Cited
US3442602A Cited
US3576593A 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) 1994-05-13 1994-11-12 1995-05-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-05-13 1998-11-12 1999-05-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-05-13 2002-11-12 2003-05-14 $7700.00 Window Closed / Lapsed

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