US3897000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple jet aerator module
Assignee: Madison Management Group Inc
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Filing: 1973-11-08
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Granted: 1975-07-29
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Expires: 1993-11-08
Abstract
Abstract A multiple jet aerator module or header which is formed substantially completely of fiber glass and which includes a right-circular tubular sheet-form liquid duct and a rightsemicircular tubular sheet-form air duct having a radius substantially less than the radius of the liquid duct. Molded fiber glass liquid nozzles are located along the length of the liquid duct and a corresponding number of liquid-air nozzles are located along the length of the air duct in register with the liquid nozzles.
Inventors
- 👤 Mikkel G Mandt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:45
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1236; C02F3/1257; B; B01; B01F; B01F23/00; B01F23/40; B01F23/45; B01F23/454; B01F25/00; B01F25/20; B01F25/21; B01F25/211; C02F3/1278; C02F3/1294; B01F23/20; B01F23/23; B01F33/00; B01F33/80; B01F33/81; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
71 words
A multiple jet aerator module comprising a liquid duct including a tubular sheet-form member and a plurality of longitudinally spaced circumferentially aligned liquid nozzles, and an air duct including a sheet-form member mounted on said liquid duct to form a passage therebetween and including a plurality of longitudinally spaced circumferentially aligned liquid-air nozzles, said liquid-air nozzles corresponding in number to and being disposed respectively in radial alignment with said liquid nozzles.
Claim 2
Dependent Claim
71 words
A multiple jet aerator module comprising a liquid duct including a tubular sheet-form member and a plurality of longitudinally spaced circumferentially aligned liquid nozzles, and an air duct including a sheet-form member mounted on said liquid duct to form a passage therebetween and including a plurality of longitudinally spaced circumferentially aligned liquid-air nozzles, said liquid-air nozzles corresponding in number to and being disposed respectively in radial alignment with said liquid nozzles.
Claim 3
Dependent Claim
20 words
The invention as defined in claim 1 wherein said liquid duct tubular sheet-form member comprises a circumferentially continuous right-circular cylinder.
Claim 4
Dependent Claim
18 words
The invention as defined in claim 1 wherein said air duct sheet-form member comprises a right-semi circular cylinder.
Claim 5
Dependent Claim
23 words
The invention as defined in claim 1 wherein said liquid and air ducts are formed of light weight filament wound reinforced fiber glass.
Claim 6
Dependent Claim
25 words
The invention as defined in claim 1 wherein said liquid nozzles are formed of molded fiber glass and bonded to said liquid duct sheet-form member.
Claim 7
Dependent Claim
25 words
The invention as defined in claim 5 wherein said liquid nozzles are bonded to said liquid duct sheet-form member by means of an epoxy resin.
Claim 8
Dependent Claim
24 words
The invention as defined in claim 1 wherein said liquid-air nozzles are formed of fiber glass and bonded to said air duct sheet-form member.
Claim 9
Dependent Claim
25 words
The invention as defined in claim 7 wherein said liquid-air nozzles are bonded to said air duct sheet-form member by means of an epoxy resin.
Claim 10
Dependent Claim
22 words
The invention as defined in claim 1 wherein said liquid and air ducts together provide a tear-drop configuration in transverse cross section.
Claim 11
Dependent Claim
39 words
The invention as defined in claim 1 and including a layer of fiber glass wound in filaments and wrapped transversely around the liquid duct and the air duct mounted thereon to provide strength, rigidity and streamlining to the module.
Claim 12
Dependent Claim
46 words
The invention as defined in claim 1 wherein said liquid duct tubular sheet-form member comprises a circumferentially continuous right-circular cylinder and said air duct sheet-form member comprises a right-semicircular cylinder, the radius of said air duct being substantially less than the radius of said liquid duct.
Claim 13
Independent Claim
151 words
The method of making a multiple jet aerator module comprising the steps of forming a one-piece tubular shaped circumferentially continuous sheet-form fiber glass liquid duct of constant cross-sectional configuration along the length thereof, providing a plurality of longitudinally spaced circumferentially aligned bores in said liquid duct, bonding a plurality of molded fiber glass liquid nozzles to said liquid duct in alignment respectively with said liquid duct bores, forming an elongated one-piece fiber glass sheet-form member having a constant cross-sectional configuration along the length thereof different from the configuration of said liquid duct, bonding said latter sheet-form member to said liquid duct to provide an enclosed air duct therebetween, providing a plurality of bores in said air duct corresponding in number and location to said bores in said liquid duct, and bonding a plurality of molded fiber glass liquid-air nozzles to said air ducts in alignment respectively with said air duct bores.
Claim 14
Independent Claim
151 words
The method of making a multiple jet aerator module comprising the steps of forming a one-piece tubular shaped circumferentially continuous sheet-form fiber glass liquid duct of constant cross-sectional configuration along the length thereof, providing a plurality of longitudinally spaced circumferentially aligned bores in said liquid duct, bonding a plurality of molded fiber glass liquid nozzles to said liquid duct in alignment respectively with said liquid duct bores, forming an elongated one-piece fiber glass sheet-form member having a constant cross-sectional configuration along the length thereof different from the configuration of said liquid duct, bonding said latter sheet-form member to said liquid duct to provide an enclosed air duct therebetween, providing a plurality of bores in said air duct corresponding in number and location to said bores in said liquid duct, and bonding a plurality of molded fiber glass liquid-air nozzles to said air ducts in alignment respectively with said air duct bores.
Claim 15
Dependent Claim
22 words
The invention as defined in claim 12 wherein said nozzles are bonded to their respective ducts by means of an epoxy resin.
Claim 16
Dependent Claim
38 words
The invention as defined in claim 12 and including the step of wrapping said liquid duct with the air duct bonded thereto with filament wound fiber glass to enhance the strength, rigidity and sTreamlining configuration of the module.
Claim 17
Independent Claim
167 words
The method of making a multiple jet aerator module comprising the steps of forming a first right-circular tubular circumferentially continuous fiber glass sheet-form member to provide a liquid duct, providing a plurality of longitudinally spaced circumferentially aligned bores therein, bonding a plurality of molded fiber glass liquid nozzles to said first sheet-form member in register with said bores therein, forming a second right-circular tubular circumferentially continuous fiber glass sheet-form member having a diameter less than the diameter of said first sheet-form member, removing a portion of said second sheet-form member along the length thereof to provide a segmental right-circular sheet-form member, bonding said segmental right-circular sheet-form member to said first sheet-form member in parallel relation to provide an air duct therebetween, providing a plurality of bores in said segmental right-circular sheet-form member corresponding in number and location to said bores in said first sheet-form member, and bonding a plurality of molded fiber glass liquid-air nozzles to said segmental right-circular sheet-form member in register with said bores therein.
Claim 18
Independent Claim
167 words
The method of making a multiple jet aerator module comprising the steps of forming a first right-circular tubular circumferentially continuous fiber glass sheet-form member to provide a liquid duct, providing a plurality of longitudinally spaced circumferentially aligned bores therein, bonding a plurality of molded fiber glass liquid nozzles to said first sheet-form member in register with said bores therein, forming a second right-circular tubular circumferentially continuous fiber glass sheet-form member having a diameter less than the diameter of said first sheet-form member, removing a portion of said second sheet-form member along the length thereof to provide a segmental right-circular sheet-form member, bonding said segmental right-circular sheet-form member to said first sheet-form member in parallel relation to provide an air duct therebetween, providing a plurality of bores in said segmental right-circular sheet-form member corresponding in number and location to said bores in said first sheet-form member, and bonding a plurality of molded fiber glass liquid-air nozzles to said segmental right-circular sheet-form member in register with said bores therein.
Claim 19
Dependent Claim
22 words
The invention as defined in claim 15 and including the step of wrapping the module with a layer of filament-wound fiber glass.
Claim 20
Dependent Claim
22 words
The invention as defined in claim 15 in which said nozzles are bonded to their respective sheet-form member by an epoxy resin.
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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) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |