US3744638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil mop and method of using same
Assignee: Individual
•
Filing: 1971-04-13
•
Granted: 1973-07-10
•
Expires: 1991-04-13
Abstract
Abstract The present disclosure is directed to a method of removing oil from the surface of a body of water with an oil mop made of thin gauge narrow strips of polypropylene or similar material passed through the oil on the surface of water and then through wringers and/or water or chemical sprays or both to remove the oil from the mop, depositing the oil in a receptacle and returning the non-oil ladened mop back into the oil covered water to pick up more surface oil.
Inventors
- 👤 H Rhodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:32
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/10; E02B15/101; E02B15/042; E02B15/104; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A device suitable for removing crude oil or oil products from a water surface comprising a. long lengths of groups of thin gauge narroW strips of polypropylene b. a length of multi-strand polypropylene line c. said lengths of groups of narrow strips of polypropylene being braided in said multi-strand line so that the center of pull of said narrow strip groups is on the center line of the multi-strand line d. and buoyancy means passed through and among the strands of said polypropylene line at spaced distances along said line.
Claim 2
Dependent Claim
30 words
A device as claimed in claim 2 wherein the buoyancy means are a plurality of closed cell foam polystyrene rods spaced along the line at 4 to 6 inch spacings.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |