US3867488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sparger Waste
Assignee: Individual
•
Filing: 1972-12-19
•
Granted: 1975-02-18
•
Expires: 1992-12-19
Abstract
Abstract A sparger comprising a porous propellor atop a hollow rotatable shaft connected to a gas source and means for rotating the shaft whereby gas forced into the hollow shaft leaves the sparger through the pores of porous blades of the propellor. The sparger is capable of quickly and efficiently dispersing a gas in a liquid and is typically mounted inside a liquid-containing chamber (such as a waste water chamber) in such a manner that the rotatable, hollow shaft enters the chamber through a water tight joint. The sparger is particularly useful for dispersing oxygen or ozone in the treatment of industrial waste water so that such water may be used in the particular process, and then reused, thereby providing substantial economic savings to the particular industry involved.
Inventors
- 👤 Hancel W Porterfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:58
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/20; C02F3/205; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/233; B01F23/2331; B01F23/23314; B01F23/2366; B01F23/2368; C02F3/26; B01F23/23311; B01F27/00; B01F27/05; B01F27/11; B01F27/113; B01F27/1131; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y10; Y10S; Y10S261/00; Y10S261/42
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
128 words
APPARATUS FOR DISSOLVING A GAS IN AN INDUSTRIAL WASTE WATER COMPRISING: A. A RECEPTACLE FOR RECEIVING A WASTE WATER, SAID RECEPTACLE CONTAINING A REMOVABLY SCREW-OUT PLUG; B. A SPARGER COMPRISING A ROTATABLE HOLLOW SHAFT AND A HOLLOW PROPELLOR MOUNTED ATOP SAID ROTATABLE HOLLOW SHAFT, SAID PROPELLOR HAVING A LEADING EDGE AND A TRAILING EDGE, EACH OF SAID EDGES CONTAINING PORES THROUGH WHICH A GAS IS DISPERSED; C. DRIVE MEANS FOR ROTATING SAID SPARGER; D. A GAS SOURCE; E. CONNECTING MEANS FOR CONNECTING SAID GAS SOURCE TO SAID SPARGER; F. A SLIP JOINT FOR CONNECTING SAID ROTATABLE HOLLOW SHAFT OF SAID SPARGER AND SAID CONNECTING MEANS; G. A WATER-TIGHT SEALING SURROUNDING SAID ROTATBLE HOLLOW SHAFT OF SAID SPARGER, SAID WATER TIGHT SEALING BEING MOUNTED SECURELY WITHIN SAID PLUG; AND
Claim 2
Dependent Claim
128 words
APPARATUS FOR DISSOLVING A GAS IN AN INDUSTRIAL WASTE WATER COMPRISING: A. A RECEPTACLE FOR RECEIVING A WASTE WATER, SAID RECEPTACLE CONTAINING A REMOVABLY SCREW-OUT PLUG; B. A SPARGER COMPRISING A ROTATABLE HOLLOW SHAFT AND A HOLLOW PROPELLOR MOUNTED ATOP SAID ROTATABLE HOLLOW SHAFT, SAID PROPELLOR HAVING A LEADING EDGE AND A TRAILING EDGE, EACH OF SAID EDGES CONTAINING PORES THROUGH WHICH A GAS IS DISPERSED; C. DRIVE MEANS FOR ROTATING SAID SPARGER; D. A GAS SOURCE; E. CONNECTING MEANS FOR CONNECTING SAID GAS SOURCE TO SAID SPARGER; F. A SLIP JOINT FOR CONNECTING SAID ROTATABLE HOLLOW SHAFT OF SAID SPARGER AND SAID CONNECTING MEANS; G. A WATER-TIGHT SEALING SURROUNDING SAID ROTATBLE HOLLOW SHAFT OF SAID SPARGER, SAID WATER TIGHT SEALING BEING MOUNTED SECURELY WITHIN SAID PLUG; AND
Claim 3
Dependent Claim
11 words
The apparatus according to claim 1 wherein said propellor is plastic.
Claim 4
Dependent Claim
12 words
The apparatus according to claim 1 wherein said propellor is polyvinyl chloride.
Claim 5
Dependent Claim
26 words
The apparatus according to claim 1 wherein said receptacle is a tube and said propellor has a diameter equal to one-half the radius of the tube.
Claim 6
Dependent Claim
12 words
The apparatus according to claim 1 wherein said entire propellor is porous.
Claim 7
Dependent Claim
13 words
The apparatus according to claim 1 wherein said drive means is a pulley.
Claim 8
Dependent Claim
19 words
The apparatus according to claim 1, wherein said gas is selected from the group consisting of oxygen and ozone.
Claim 9
Dependent Claim
162 words
Apparatus for dissolving a gas selected from the group consisting of oxygen and ozone in a textile waste water comprising: a. a receptacle for receiving a textile waste water, said receptacle containing a removable screw-out plug; b. a sparger comprising a rotatable hollow shaft and a hollow propellor mounted atop said rotatable hollow shaft, said propellor having a leading and trailing edge, each of said edges containing pores through which a gas is dispersed; c. drive means for rotating said sparger; d. a source of said gas; e. connecting means for connecting said source of said gas to said sparger; f. a slip joint for connecting said rotatable hollow shaft of said sparger and said connecting means; g. a water tight sealing surrounding said rotatable hollow shaft of said sparger, said water tight sealing being mounted securely withiN said plug; and h. means for attaching said plug to said receptacle, whereby said textile waste water may be reused in a textile process.
Claim 10
Dependent Claim
162 words
Apparatus for dissolving a gas selected from the group consisting of oxygen and ozone in a textile waste water comprising: a. a receptacle for receiving a textile waste water, said receptacle containing a removable screw-out plug; b. a sparger comprising a rotatable hollow shaft and a hollow propellor mounted atop said rotatable hollow shaft, said propellor having a leading and trailing edge, each of said edges containing pores through which a gas is dispersed; c. drive means for rotating said sparger; d. a source of said gas; e. connecting means for connecting said source of said gas to said sparger; f. a slip joint for connecting said rotatable hollow shaft of said sparger and said connecting means; g. a water tight sealing surrounding said rotatable hollow shaft of said sparger, said water tight sealing being mounted securely withiN said plug; and h. means for attaching said plug to said receptacle, whereby said textile waste water may be reused in a textile process.
Claim 11
Dependent Claim
23 words
The apparatus according to claim 8, wherein said ''''a'''', ''''b'''', and ''''e'''' are not chemically affected by said waste water or said gas.
Claim 12
Dependent Claim
12 words
The apparatus according to claim 8, wherein said entire propellor is porous.
Claim 13
Dependent Claim
13 words
The apparatus according to claim 8, wherein said drive means is a pulley.
References Cited (Backward Citations)
US3124131A
Cited
US1308587A
Cited
US1124855A
Cited
US2269583A
Cited
US2510427A
Cited
US2873600A
Cited
US2917372A
Cited
US2992182A
Cited
US3108146A
Cited
US3186700A
Cited
US3321082A
Cited
US3382980A
Cited
US3371779A
Cited
US3722679A
Cited
US3677528A
Cited
US3823923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |