US3552725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acceleration units
Assignee: Future Products Development Corp
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Filing: 1969-03-28
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Granted: 1971-01-05
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Expires: 1989-03-28
Abstract
Abstract A device for accelerating evaporation and oxidation in sewage systems comprising a frame, a cylindrical housing slidably contained in the frame, a motor driven fan located within the housing and a floatable hood attached to the lower end of the housing whereby the inlet space between the air inlet and the water level may be maintained at a constant level.
Inventors
- 👤 Bartow Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:53
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1278; C02F3/1284; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y02W10/30; Y02W10/37
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
77 words
An evaporation and aeration acceleration unit adapted for use in sewage oxidation ponds comprising a frame, a vertically extended housing in said frame, said housing containing a motor driven fan, a vertically adjustable hood arranged in telescopic relationship with the lower portion of said housing, said hood containing float means at its lower periphery, an air inlet, and means to move the hood vertically along the housing to maintain a constant inlet distance above a liquid level.
Claim 2
Dependent Claim
77 words
An evaporation and aeration acceleration unit adapted for use in sewage oxidation ponds comprising a frame, a vertically extended housing in said frame, said housing containing a motor driven fan, a vertically adjustable hood arranged in telescopic relationship with the lower portion of said housing, said hood containing float means at its lower periphery, an air inlet, and means to move the hood vertically along the housing to maintain a constant inlet distance above a liquid level.
Claim 3
Dependent Claim
24 words
Unit of claim 1 further comprising airtight flexible connecting means between the upper portion of said hood and the lower portion of said housing.
Claim 4
Dependent Claim
13 words
Unit of claim 1 wherein said float is provided with wave dampening means.
Claim 5
Dependent Claim
19 words
Unit of claim 1 wherein said motor is activated automatically by means responsive to variations in natural wind velocity.
Claim 6
Dependent Claim
32 words
Unit of claim 1 wherein the means to move the hood comprise grooves on the outer periphery of the housing adapted to receive rollers attached to the inner periphery of the hood.
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |