§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US3853767A Expired / Lapsed US ⏱️ 0.0 years remaining

Pumping apparatus for skimming and recovering an oil layer from a body of water

Assignee: Patents and Development AS
•
Filing: 1972-04-14
•
Granted: 1974-12-10
•
Expires: 1992-04-14
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The disclosed apparatus for recovering oil floating on the surface of a body of water comprises a bowl for skimming and collecting oil from the surface of the water, means for supporting the bowl with its peripheral edge surface located at the surface of the water while its body portion therebelow extends downwardly below the level of the body of water, said bowl having a central downwardly and inwardly inclined upper surface, a pump for pumping recovered oil from the central lower portion of the bowl, a plate outside and surrounding the bowl for directing water and oil toward the peripheral edge of the bowl where oil is separated from water, said plate having a central downwardly and inwardly inclined portion below the bowl having a bottom water outlet passageway, and a water pump connected into the water outlet passageway for drawing water and oil over the peripheral surface of the plate to the peripheral edge of the bowl and for drawing water on through the space between the plate and bowl and out the said passageway. The pump may be located in the bowl, for example, in a chamber which surrounds the pump and is provided with oil flow passageways leading into the chamber.

Inventors

  • 👤 F Mohn

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 22:23
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: 6
Claim 1
Independent Claim 224 words
Apparatus for recovering oil floating on the surface of a body of water comprising a bowl for skimming and collecting oil from the surface of the water, means for supporting the bowl with its peripheral edge surface located at the surface of the water while its body portion therebelow extends downwardly below the level of the body of water, said bowl having a central downwardly and inwardly inclined upper surface, a pump and a pump inlet for pumping recovered oil from the central lower portion of the bowl, a plate below and spaced from the under surface of said bowl, said plate having an outer peripheral surface for directing water and oil toward the peripheral edge of the bowl where oil is separated from water, said plate having a central downwardly and inwardly inclined portion below the bowl, said central downwardly and inwardly inclined portion having a bottom outlet passageway, means for drawing water and oil over the peripheral surface of said plate toward and over the peripheral edge of said bowl, said means also drawing water through the space between said plate and said bowl and out the said passageway, said means including a water pump connected into said water outlet passageway, and the lower portion of said bowl being provided with a channel for the flow of water to the plate below.
Claim 2
Dependent Claim 224 words
Apparatus for recovering oil floating on the surface of a body of water comprising a bowl for skimming and collecting oil from the surface of the water, means for supporting the bowl with its peripheral edge surface located at the surface of the water while its body portion therebelow extends downwardly below the level of the body of water, said bowl having a central downwardly and inwardly inclined upper surface, a pump and a pump inlet for pumping recovered oil from the central lower portion of the bowl, a plate below and spaced from the under surface of said bowl, said plate having an outer peripheral surface for directing water and oil toward the peripheral edge of the bowl where oil is separated from water, said plate having a central downwardly and inwardly inclined portion below the bowl, said central downwardly and inwardly inclined portion having a bottom outlet passageway, means for drawing water and oil over the peripheral surface of said plate toward and over the peripheral edge of said bowl, said means also drawing water through the space between said plate and said bowl and out the said passageway, said means including a water pump connected into said water outlet passageway, and the lower portion of said bowl being provided with a channel for the flow of water to the plate below.
Claim 3
Dependent Claim 36 words
An apparatus as claimed in claim 1, including means at the discharge side of the water pump for directing streams of water from the water pump laterally into the body of water below the water pump.
Claim 4
Dependent Claim 37 words
An apparatus as claimed in claim 1, including a central chamber in the bowl having a wall surrounding the oil pump inlet, said wall having inlets for the flow of oil from the bowl into said chamber.
Claim 5
Dependent Claim 27 words
An apparatus as claimed in claim 3, wherein the bowl outside said chamber is provided with a channel for the flow of water to the plate below.
Claim 6
Dependent Claim 19 words
An apparatus as claimed in claim 1, wherein the bowl is secured to the plate in spaced relation thereabove.

References Cited (Backward Citations)

DE1284363B Cited
US3635342A Cited
US3741391A Cited
US3701429A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-12-09 1978-06-10 1978-12-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-12-09 1982-06-10 1982-12-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-12-09 1986-06-10 1986-12-10 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag