Patent US3727766A successfully refreshed from Google Patents.
US3727766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum skimming apparatus for removing liquid contaminants floating in confined bodies of water
Assignee: Individual
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Filing: 1971-05-18
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Granted: 1973-04-17
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Expires: 1991-05-18
Abstract
Abstract A boat-mounted vacuum system for removing floating liquid contaminants, such as oil spills, particularly from confined bodies of waters such as harbors, bays, and the like. The system employs one or more water jet eductors for creating a vacuum in a vacuum tank located between the suction heads and the pump supplying high pressure water to the eductors so that the pump does not lose its prime when the suction heads are lifted off the water surface from which it is collecting the contaminants.
Inventors
- 👤 W Heyser
- 👤 H Neely
- 👤 D Horne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:43
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/10; E02B15/106; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
235 words
In a system for collecting oil from a confined area on the surface of a body of water said system comprising a Vacuum tank, means for producing a vacuum in said tank, a flexible conduit with a first end connected to said tank and a second end adapted to collect oil from the surface of said body of water, the improvement comprising: a water pump with an inlet and outlet thereto; first conduit means with one end connected to said inlet of said water pump and a second end located beneath the surface of said body of water at a location removed from said confined area; water operated eductor means operatively connected to the vacuum tank of said system for producing a continuous vacuum therein, means for transferring the oil collected in said vacuum tank to a depository, said transfer means being separate from and operable independently of said eductor; conduit means connected between said outlet of said water pump and an inlet to said water operated eductor means, second conduit means with a first end connected to an outlet of said water operated eductor means and a second discharge end located spaced apart from said eductor means and leading to said body of water whereby water utilized in operating said eductor may be discharged into said body of water at a location removed from oil floating on the surface of said body of water.
Claim 2
Dependent Claim
235 words
In a system for collecting oil from a confined area on the surface of a body of water said system comprising a Vacuum tank, means for producing a vacuum in said tank, a flexible conduit with a first end connected to said tank and a second end adapted to collect oil from the surface of said body of water, the improvement comprising: a water pump with an inlet and outlet thereto; first conduit means with one end connected to said inlet of said water pump and a second end located beneath the surface of said body of water at a location removed from said confined area; water operated eductor means operatively connected to the vacuum tank of said system for producing a continuous vacuum therein, means for transferring the oil collected in said vacuum tank to a depository, said transfer means being separate from and operable independently of said eductor; conduit means connected between said outlet of said water pump and an inlet to said water operated eductor means, second conduit means with a first end connected to an outlet of said water operated eductor means and a second discharge end located spaced apart from said eductor means and leading to said body of water whereby water utilized in operating said eductor may be discharged into said body of water at a location removed from oil floating on the surface of said body of water.
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) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |