US3904528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pick-up element for oily contaminants
Assignee: Individual
•
Filing: 1973-06-29
•
Granted: 1975-09-09
•
Expires: 1993-06-29
Abstract
Abstract An element for picking up oily contaminant in liquid form from the surface of a body of water. The element has an outer container of porous material which is pervious to oily contaminants in liquid form and impervious to water. An absorber is positioned in said container and substantially fills it. The absorber is a spongy material which will absorb oily contaminant and has large spaced parallel surfaces and a plurality of slits therethrough in the direction of the thickness of the absorber. The slits define a plurality of wide flat strips which lie against each other. The slits extend from one end of the absorber to just short of the other end. Granules of absorbent material are sprinkled over the surfaces of the absorber.
Inventors
- 👤 Charles H Yocum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:12
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/681; B; B01; B01D; B01D17/00; B01D17/02; B01D17/0202; B01D17/08; B01D17/10; E; E02; E02B; E02B15/00; E02B15/04; E02B15/10; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/924
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
116 words
AN ELEMENT FOR PICKING UP OILY CONTAMINANT IN LIQUID FORM FROM THE SURFACE OF A BODY OF WATER, COMPRISING AN OUTER CONTAINER OR POUROUS MATERIAL WHICH IS PERVIOUS TO OILY CONTAMINANTS IN LIQUID FROM AND IMPERVIOUS TO WATER, AN ABSORBER IN SAID CONTAINER AND SUBSTANTIALLY FILLING SAID CONTAINER, SAID ABSORBER BEING A SPONGY MATERIAL WHICH WILL ABSORB OILY CONTAMINANT AND HAVING LARGE SPACED PARALLEL SURFACES AND A PLURALITY OF SLITS THERETHROUGH IN THE DIRECTION OF THE THICKNESS THEREOF DEFINING A PLURALITY OF WIDE FLAT STRIPS, SAID SLITS EXTED ING FROM ONE END EDGE OF SAID OBSORBER TO JUST SHORT OF THE OTHER END EDGE, AND GRANULES OF ABSORBENT MATERIAL SPRINKLED OVER THE SURFACE OF SAID ABSORBER.
Claim 2
Dependent Claim
116 words
AN ELEMENT FOR PICKING UP OILY CONTAMINANT IN LIQUID FORM FROM THE SURFACE OF A BODY OF WATER, COMPRISING AN OUTER CONTAINER OR POUROUS MATERIAL WHICH IS PERVIOUS TO OILY CONTAMINANTS IN LIQUID FROM AND IMPERVIOUS TO WATER, AN ABSORBER IN SAID CONTAINER AND SUBSTANTIALLY FILLING SAID CONTAINER, SAID ABSORBER BEING A SPONGY MATERIAL WHICH WILL ABSORB OILY CONTAMINANT AND HAVING LARGE SPACED PARALLEL SURFACES AND A PLURALITY OF SLITS THERETHROUGH IN THE DIRECTION OF THE THICKNESS THEREOF DEFINING A PLURALITY OF WIDE FLAT STRIPS, SAID SLITS EXTED ING FROM ONE END EDGE OF SAID OBSORBER TO JUST SHORT OF THE OTHER END EDGE, AND GRANULES OF ABSORBENT MATERIAL SPRINKLED OVER THE SURFACE OF SAID ABSORBER.
Claim 3
Dependent Claim
26 words
An element as claimed in claim 1 in which said container is comprised of two flat sheets having the edges sealed together in water tight fashion.
Claim 4
Dependent Claim
21 words
An element as claimed in claim 2 in which the edges of said sheets are further mechanically secured to each other.
Claim 5
Dependent Claim
16 words
An element as claimed in claim 3 in which said sheets are stitched to each other.
Claim 6
Dependent Claim
53 words
An element as claimed in claim 1 in which said container is rectangular and is comprised of two rectangular sheets of a Material which is heat sealable, said sheets being heat sealed to each other around three edges and stitched along said three edges, and the fourth edges are folded over and stitched.
Claim 7
Dependent Claim
19 words
An element as claimed in claim 1 in which said absorber is a polygonal shape having spaced flat surfaces.
Claim 8
Dependent Claim
22 words
An element as claimed in claim 6 in which said absorber is rectangular, and said slits extend in the long direction thereof.
Claim 9
Dependent Claim
34 words
An element as claimed in claim 1 in which said granular absorbent material is on the exposed surfaces of said absorber and on the surfaces of said strips which are opposed to each other.
References Cited (Backward Citations)
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Cited
US2872043A
Cited
US3598729A
Cited
US3617566A
Cited
US3518183A
Cited
US3674683A
Cited
US3679058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |