US4226829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Renewable vaporizer for air treatment and the like
Assignee: Individual
•
Filing: 1978-10-04
•
Granted: 1980-10-07
•
Expires: 1998-10-04
Abstract
Abstract A vaporizer for air treatment and the like producing vapors which can be renewed to provide effective operation for an extended period of time. The vaporizer comprises an hourglass-shaped container having a pair of adjacent chambers communicating by means of a restrictive orifice. Each chamber has an opening in the end covered by a porous membrane. The container contains a supply of particulate fluid-like carrier material carrying a volatile vapor-producing treating material. A part of the treating agent is transferred by the carrier material to the membrane for producing air treating vapors by volatilization or evaporation of the treating agent. Inversion of the container, mixes and redistributes the treating agent among the carrier vehicle particles and exposes a freshly loaded vapor producing membrane.
Inventors
- 👤 Andrew Mike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:07
CPC Classifications
A; A01; A01M; A01M1/00; A01M1/20; A01M1/2022; A01M1/2027; A01M1/2055; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/12; Y; Y10; Y10S; Y10S261/00; Y10S261/17; Y10S261/65; Y10S261/88; Y10S261/89
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
95 words
A renewable vaporizer for producing air treating vapors comprising a container having at least one opening therein, a supply of fluid-like carrier material carrying a vapor producing treating agent contained within said container; and a porous membrane covering said opening, said fluid-like material being in contact with said membrane to transfer a part of said treating agent thereto when said container is positioned in a first orientation, said membrane operating to bring a part at least of said transferred treating agent into contact with the outer surface of said membrane for producing air treating vapors.
Claim 2
Dependent Claim
95 words
A renewable vaporizer for producing air treating vapors comprising a container having at least one opening therein, a supply of fluid-like carrier material carrying a vapor producing treating agent contained within said container; and a porous membrane covering said opening, said fluid-like material being in contact with said membrane to transfer a part of said treating agent thereto when said container is positioned in a first orientation, said membrane operating to bring a part at least of said transferred treating agent into contact with the outer surface of said membrane for producing air treating vapors.
Claim 3
Dependent Claim
23 words
The vaporizer according to claim 1 including a perforated plate-like support member extending across said container adjacent said membrane to support said membrane.
Claim 4
Dependent Claim
30 words
The vaporizer according to claim 1 wherein said container includes a flange-like lip extending outwardly adjacent said membrane for forming an air space adjacent said outer surface of said membrane.
Claim 5
Dependent Claim
19 words
The vaporizer according to claim 1 wherein said vaporizer includes a removable and imperforate sheet temporarily covering said membrane.
Claim 6
Dependent Claim
15 words
The vaporizer according to claim 1 wherein said container is at least partially optically transmissive.
Claim 7
Dependent Claim
106 words
The vaporizer according to claim 1 wherein said container comprises a pair of chambers interconnected by a restrictive orifice, each of said chambers having an opening disposed therein, each of said openings being covered with a said membrane, said fluid-like material being in contact with one of said membranes when said container is positioned in said first orientation, said fluid-like material being in contact with the other of said membranes when said container is in a second orientation, said fluid-like material passing through said restrictive orifice when said container is moved between said first and second orientations to mix said material and redistribute said treating agent.
Claim 8
Dependent Claim
12 words
The vaporizer according to claim 6 wherein said container is substantially hourglass-shaped.
Claim 9
Dependent Claim
14 words
The vaporizer according to claim 1 wherein said carrier material comprises a particulate material.
Claim 10
Dependent Claim
14 words
The vaporizer according to claim 8 wherein said particulate material absorbs said treating agent.
Claim 11
Dependent Claim
26 words
The vaporizer according to claim 8 wherein said particulate material is substantially non-absorptive, said treating agent being carried substantially on the surface of said particulate material.
Claim 12
Dependent Claim
15 words
The vaporizer according to claim 10 wherein said particulate material is comprised of inorganic beads.
Claim 13
Dependent Claim
14 words
The vaporizer according to claim 1 wherein said treating agent comprises a volatile fluid.
Claim 14
Dependent Claim
13 words
The vaporizer according to claim 1 wherein said membrane absorbs said treating agent.
Claim 15
Dependent Claim
12 words
The vaporizer according to claim 1 wherein said membrane is substantially non-absorptive.
References Cited (Backward Citations)
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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) | 1983-10-07 | 1984-04-07 | 1984-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-07 | 1988-04-07 | 1988-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-07 | 1992-04-07 | 1992-10-07 | $7700.00 | Window Closed / Lapsed |