US3661323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Odor neutralizing device
Assignee: Individual
•
Filing: 1970-06-10
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Granted: 1972-05-09
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Expires: 1990-06-10
Abstract
Abstract An odor neutralizing device for use with a heating and/or air conditioning system having an air return duct and a blower for use in a self-contained apparatus having an air passage with a fan or blower. The device includes a housing having an air inlet and an air discharge chamber and a container for the odor neutralizing material attached to the housing and communicating with the two chambers and forming an air passage therebetween. A thermostatically controlled valve senses the temperature of the air flowing through the chambers and varies the flow of air to maintain a substantially constant odor neutralizing vapor-to-air ratio regardless of air temperature.
Inventors
- 👤 Richard W Farris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:59
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/12; A61L9/122; F; F24; F24F; F24F8/00; Y; Y10; Y10S; Y10S261/00; Y10S261/88
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
140 words
An odor neutralizing device for use with an air passage of a system having a blower therein: a housing, a partition in said housing dividing said housing into a first chamber having an air inlet passage and a second chamber having a port for communicating with the air passage, a bottom member for each of said chambers, a container for odor neutralizing material mounted on said housing beneath said bottom members, an opening in each of said bottom members communicating with said container, a valve element closing one of said openings, a control means for varying the degree of opening of said valve element, and a thermostatically controlled valve means for controlling the flow of air through one of said openings to increase the flow of air therethrough with a decrease in temperature of the air passing through said chamber.
Claim 2
Dependent Claim
140 words
An odor neutralizing device for use with an air passage of a system having a blower therein: a housing, a partition in said housing dividing said housing into a first chamber having an air inlet passage and a second chamber having a port for communicating with the air passage, a bottom member for each of said chambers, a container for odor neutralizing material mounted on said housing beneath said bottom members, an opening in each of said bottom members communicating with said container, a valve element closing one of said openings, a control means for varying the degree of opening of said valve element, and a thermostatically controlled valve means for controlling the flow of air through one of said openings to increase the flow of air therethrough with a decrease in temperature of the air passing through said chamber.
Claim 3
Dependent Claim
36 words
An odor neutralizing device as defined in claim 1 in which a valve element closes the other of said openings and is operatively connected to said first valve element for opening and closing said openings simultaneously.
Claim 4
Dependent Claim
28 words
An odor neutralizing device as defined in claim 1 in which said valve element is mounted on a pivot means and opens and closes through an arcuate movement.
Claim 5
Dependent Claim
39 words
An odor neutralizing device as defined in claim 3 in which said control means for varying the degree of opening of said valve element includes a linear movable means and a linkage connecting said means with said valve element.
Claim 6
Dependent Claim
26 words
An odor neutralizing device as defined in claim 2 in which said valve element is mounted on a pivot means and opens through an arcuate movement.
Claim 7
Dependent Claim
39 words
An odor neutralizing device as defined in claim 5 in which said control means for varying the degree of opening of said valve element includes a linear movable means and a linkage connecting said means with said valve element.
Claim 8
Dependent Claim
29 words
An odor neutralizing device as defined in claim 1 in which a switch is controlled by said control means for controlling the operation of a blower in said system.
Claim 9
Dependent Claim
29 words
An odor neutralizing device as defined in claim 6 in which a switch is controlled by said control means for controlling the operation of a blower in said system.
Claim 10
Dependent Claim
41 words
An odor neutralizing device as defined in claim 1 or 8 in which said thermostatically controlled valve means consists of a plate-like member movable toward and away from the opening to said second chamber in response to changes in air temperature.
Claim 11
Dependent Claim
45 words
An odor neutralizing device as defined in claim 9 in which a thermostatic element is attached to said plate-like member and an adjustment screw vAries the position of said member relative to the opening in said second chamber in response to changes in air temperature.
Claim 12
Dependent Claim
32 words
An odor neutralizing device as defined in claim 1 in which said container is constructed of translucent material and is threadedly secured to said housing beneath the bottom members of said chambers.
Claim 13
Dependent Claim
43 words
An odor neutralizing device as defined in claim 1 in which said housing contains a horizontally opening port and a vertically opening port for mounting said housing on the vertical wall of the air passage or on a horizontal wall of a duct.
Claim 14
Dependent Claim
126 words
An odor neutralizing device for use with an air passage of a system having a blower therein: a housing, a member in said housing having an air inlet opening communicating with ambient air and an air outlet opening communicating with the air passage, walls defining an air flow chamber communicating with one of said openings, a container for odor neutralizing material connected to said member and interconnecting said openings, a valve element closing one of said openings, a control means for varying the degree of opening of said valve element, and a thermostatically controlled valve means for controlling the flow of air through one of said openings to increase the flow of air therethrough with a decrease in temperature of the air passing through said chamber.
Claim 15
Dependent Claim
126 words
An odor neutralizing device for use with an air passage of a system having a blower therein: a housing, a member in said housing having an air inlet opening communicating with ambient air and an air outlet opening communicating with the air passage, walls defining an air flow chamber communicating with one of said openings, a container for odor neutralizing material connected to said member and interconnecting said openings, a valve element closing one of said openings, a control means for varying the degree of opening of said valve element, and a thermostatically controlled valve means for controlling the flow of air through one of said openings to increase the flow of air therethrough with a decrease in temperature of the air passing through said chamber.
Claim 16
Dependent Claim
36 words
An odor neutralizing device as defined in claim 13 in which a valve element closes the other of said openings and is operatively connected to said first valve element for opening and closing said openings simultaneously.
Claim 17
Dependent Claim
28 words
An odor neutralizing device as defined in claim 13 in which said valve element is mounted on a pivot means and opens and closes through an arcuate movement.
Claim 18
Dependent Claim
29 words
An odor neutralizing device as defined in claim 13 in which a switch is controlled by said control means for controlling the operation of a blower in said system.
Claim 19
Dependent Claim
38 words
An odor neutralizing device as defined in claim 13 in which said thermostatically controlled valve means consists of a plate-like member movable toward and away from the openings to said chamber in response to changes in air temperature.
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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |