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US3791105A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for separating oil from a mixture of oil and a gaseous fluid

Assignee: Oil Mop International Inc
•
Filing: 1971-07-27
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Granted: 1974-02-12
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Expires: 1991-07-27
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Abstract

Abstract The present disclosure is directed to an oil filter for removing oil from a gaseous fluid in which the oil containing gaseous fluid is passed through two filter stages, the first of which is a medium packed petrophilic aerophobic hydrophobic material and the second stage is a densely packed filter media of the same material. The oil free gaseous fluid is removed from the top of the second stage while the oil is drained by gravity from the bottom of the second stage.

Inventors

  • 👤 H Rhodes

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 10:03
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/10; B01D46/12; B01D39/00; B01D39/14; B01D39/16; B01D39/1607; B01D39/1623; B01D39/18; Y; Y10; Y10S; Y10S55/00; Y10S55/25

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 104 words
The method of separating oil from a gaseous fluid containing oil therein comprising passing the fluid through a first filtering medium of medium packed fibrilated polypropylene, thereafter passing the thus filtered gaseous fluid to a second filtering medium of a densely packed fibrilated polypropylene, subjecting the gaseous fluid to a filtering medium of a high porosity cotton sheeting treated with fluorocarbon to electrostatically repel oil entrained in the gaseous fluid between said first and second filtering mediums, removing the thus filtered gaseous fluid exiting from said second filtering medium and cotton sheeting and collecting the oil by gravity flow from said second filtering medium.

References Cited (Backward Citations)

US1362125A Cited
US1896833A Cited
US3250398A Cited
US3352778A Cited
US3464186A Cited
US3455459A Cited
US3527027A Cited
US3631654A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-02-11 1977-08-13 1978-02-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-02-11 1981-08-13 1982-02-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-02-11 1985-08-13 1986-02-12 $7700.00 Window Closed / Lapsed

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