US4904289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deodorizing apparatus
Assignee: Sharp Corp
•
Filing: 1988-03-11
•
Granted: 1990-02-27
•
Expires: 2008-03-11
Abstract
Abstract A deodorizing apparatus includes a case having an air inlet and an air outlet, an ozone generator of the discharge type disposed in an air flow channel between the air inlet and the air outlet, an acceleration device disposed in the air flow channel at the air outlet side thereof for accelerating the decomposition of odors and ozone, a fan provided within the case, an electric motor provided within the case for driving the fan, and device disposed in the air flow channel at the air inlet side thereof for preventing an excess of ozone from flowing out. As a result, odors can be efficiently removed by a decomposition with ozone, while the leakage of residual ozone is minimized.
Inventors
- 👤 Junji Miyakami
- 👤 Yuzo Yoshioka
- 👤 Kazuhiko Otozi
- 👤 Hiroyasu Nakagawa
- 👤 Toshiyuki Shirouzu
- 👤 Fumio Yada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:07
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/12; F; F25; F25D; F25D17/00; F25D17/04; F25D17/042; A61L9/122; F25D2317/00; F25D2317/04; F25D2317/041; F25D2317/0415; F25D2317/0416
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
142 words
A deodorizing apparatus comprising: a case having an air flow channel provided therein having an air inlet disposed at a first end of said air flow channel and an air outlet disposed at a second end of said air flow channel opposite to said first end; an ozone generator disposed in said air flow channel between said air inlet and said air outlet, said ozone generator being of a discharge type; first acceleration means disposed in said air flow channel adjacent to said air outlet for accelerating the decomposition of odors and ozone; a fan disposed within said case; an electric motor disposed with said case for driving said fan; and second acceleration means disposed in said air flow channel adjacent to said air inlet for preventing an excess of ozone from flowing out by accelerating the decomposition of odors and ozone.
Claim 2
Dependent Claim
142 words
A deodorizing apparatus comprising: a case having an air flow channel provided therein having an air inlet disposed at a first end of said air flow channel and an air outlet disposed at a second end of said air flow channel opposite to said first end; an ozone generator disposed in said air flow channel between said air inlet and said air outlet, said ozone generator being of a discharge type; first acceleration means disposed in said air flow channel adjacent to said air outlet for accelerating the decomposition of odors and ozone; a fan disposed within said case; an electric motor disposed with said case for driving said fan; and second acceleration means disposed in said air flow channel adjacent to said air inlet for preventing an excess of ozone from flowing out by accelerating the decomposition of odors and ozone.
Claim 3
Dependent Claim
36 words
An apparatus as defined in claim 1, wherein said air inlet, said second acceleration means, said ozone generator, said first acceleration means, said electric motor, said fan and said air outlet are arranged in this order.
Claim 4
Dependent Claim
28 words
An apparatus as defined in claim 1, wherein said ozone generator comprises a high voltage generating circuit having a constant-voltage circuit at a power supply input side, thereof.
Claim 5
Dependent Claim
33 words
An apparatus as defined in claim 1, wherein said first acceleration means comprises a plate having a honeycomb structure, said plate comprising a material capable of accelerating the decomposition of odors and ozone.
Claim 6
Dependent Claim
34 words
An apparatus as defined in claim 1, wherein said air inlet, said electric motor, said second acceleration means, said fan and said air outlet are arranged in this order in said air flow channel.
Claim 7
Dependent Claim
31 words
An apparatus as defined in claim 1, wherein said electric motor and said ozone generator are driven by an output voltage of a step-down transformer connected to a commercial power supply.
Claim 8
Dependent Claim
25 words
An apparatus as defined in claim 6, wherein the step-down transformer is housed in a transformer case separate from said case of the deodorizing apparatus.
Claim 9
Dependent Claim
24 words
An apparatus as defined in claim 7, wherein said case of the deodorizing apparatus is connected to said transformer case by a two-core cable.
Claim 10
Dependent Claim
18 words
An apparatus as defined in claim 8 wherein said two-core cable is removably connected to said transformer case.
Claim 11
Dependent Claim
35 words
An apparatus as defined in claim 7, wherein said transformer case comprises blades capable of being inserted into a commercial power supply receptacle for removably connecting said transformer case to said commercial power supply receptacle.
Claim 12
Dependent Claim
19 words
An apparatus as defined in claim 1, wherein the deodorizing apparatus is installed within a refrigerator having a door.
Claim 13
Dependent Claim
35 words
An apparatus as defined in claim 11, further comprising first control means for controlling the operation of said electric motor, and second control means for intermittently operating said ozone generator at predetermined ON- and OFF-periods.
Claim 14
Dependent Claim
34 words
An apparatus as defined in claim 12, wherein said first control means intermittently operates said electric motor in an operative relation to the intermittent operation of said ozone generator by said second control means.
Claim 15
Dependent Claim
31 words
An apparatus as defined in claim 12, wherein said first control means operates said electric motor for a period of time greater than said predetermined ON- period of said ozone generator.
Claim 16
Dependent Claim
24 words
An apparatus as defined in claim 12, wherein said electric motor comprises current detecting means in a drive current circuit of said electric motor.
Claim 17
Dependent Claim
43 words
An apparatus as defined in claim 15, wherein said current detecting means detects the absence of a drive current for said electric motor and prevents said second control means from operating said ozone generator in response to the absence of said drive current.
Claim 18
Dependent Claim
20 words
An apparatus as defined in claim 11, wherein said case comprises a portion of the inner wall of said refrigerator.
Claim 19
Dependent Claim
24 words
An apparatus as defined in claim 12, wherein a common a.c. power supply supplies drive power to said electric motor and said ozone generator.
Claim 20
Dependent Claim
69 words
An apparatus as defined in claim 18, wherein said first control means comprises first switching means for opening and closing a first circuit for supplying said drive power from said common a.c. power supply to said electric motor and said ozone generator, and said second control means comprises second switching means for opening and closing a second circuit for supplying power from said switching means to said ozone generator.
Claim 21
Dependent Claim
17 words
An apparatus as defined in claim 12, wherein said first and second control means comprises a microcomputer.
Claim 22
Dependent Claim
24 words
An apparatus as defined in claim 12, wherein said refrigerator includes a temperature sensor and a humidity sensor in the interior of said refrigerator.
Claim 23
Dependent Claim
38 words
An apparatus as defined in claim 21, wherein said second control means is responsive to an output from said temperature sensor and said humidity sensor for intermittently operating said ozone generator by controlling said predetermined ON- and OFF-periods.
Claim 24
Dependent Claim
25 words
An apparatus as defined in claim 12, wherein said refrigerator includes a door switch operative in response to the opening and closing of said door.
Claim 25
Dependent Claim
63 words
An apparatus as defined in claim 23, wherein said second control means comprises a first timer for measuring and setting said predetermined ON-period of the intermittent operation of said ozone generator, said second control means interrupts the measuring operation of said first timer and the intermittent operation of said ozone generator, and causes said first timer and said ozone generator to resume operating.
Claim 26
Dependent Claim
50 words
An apparatus as defined in claim 24, wherein said second control means comprises a second timer for measuring a closed period of time during which said door is closed, and prevents the operation of said ozone generator when the door is closed for at least a predetermined period of time.
Claim 27
Dependent Claim
28 words
An apparatus as defined in claim 11, wherein said ozone generator comprises a high voltage generating circuit having a constant-voltage circuit at a power supply input side, thereof.
Claim 28
Dependent Claim
50 words
An apparatus as defined in claim 23, wherein said second control means comprises a second timer for measuring a closed period of time during which said door is closed and prevents the operation of said ozone generator when the door is closed for at least a predetermined period of time.
Claim 29
Dependent Claim
126 words
A deodorizing apparatus comprising: a case having an air flow channel therein with an air inlet disposed at a first end of said air flow channel and an air outlet disposed at a second end of said air flow channel opposite to said first end; an ozone generator disposed in said air flow channel between said air inlet and said air outlet, said ozone generator being of a discharge type; first acceleration means disposed in said air flow channel adjacent to said air outlet for accelerating the decomposition of odors and ozone; a fan disposed within said case; and an electric motor disposed in said air flow channel adjacent to said air inlet for driving said fan and preventing an excess of ozone from flowing out.
Claim 30
Dependent Claim
126 words
A deodorizing apparatus comprising: a case having an air flow channel therein with an air inlet disposed at a first end of said air flow channel and an air outlet disposed at a second end of said air flow channel opposite to said first end; an ozone generator disposed in said air flow channel between said air inlet and said air outlet, said ozone generator being of a discharge type; first acceleration means disposed in said air flow channel adjacent to said air outlet for accelerating the decomposition of odors and ozone; a fan disposed within said case; and an electric motor disposed in said air flow channel adjacent to said air inlet for driving said fan and preventing an excess of ozone from flowing out.
Claim 31
Dependent Claim
39 words
An apparatus as defined in claim 26, wherein said air flow channel is U-shaped, and said air inlet, said electric motor, said ozone generator, said first acceleration means, said fan and said air outlet are arranged in this order.
Claim 32
Dependent Claim
46 words
An apparatus as defined in claim 28, wherein said air inlet, said electric motor, said fan, said ozone generator, said first acceleration means and said air outlet are arranged in this order from said first end of the deodorizing apparatus upward against the direction of gravity.
References Cited (Backward Citations)
US1714562A
Cited
US1837296A
Cited
US1961878A
Cited
US2116480A
Cited
US2173073A
Cited
US2203188A
Cited
US2212109A
Cited
US2331147A
Cited
US2920622A
Cited
US3230033A
Cited
US3421836A
Cited
US4051045A
Cited
US4587591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-26 | 1993-08-28 | 1994-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-26 | 1997-08-28 | 1998-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-26 | 2001-08-28 | 2002-02-27 | $7700.00 | Window Closed / Lapsed |