US4085049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skimming apparatus
Assignee: SANIVAN Inc
•
Filing: 1976-05-04
•
Granted: 1978-04-18
•
Expires: 1996-05-04
Abstract
Abstract A skimming device for removing oil and similar products from the surface of water. The device is self-adjusting in that its skimming rate and the depth of skim are controlled by the rate that the skimmed fluid is removed from the device.
Inventors
- 👤 Norman John Reid Hartwick
- 👤 Donald Charles Clayton Lathe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:34
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/10; E02B15/106; B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0214; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/923
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
107 words
A device for removing oil and like products from the surface of water comprising a spaced pair of float members; an elongated, open-sided reservoir having a weir edge extending substantially parallel with the reservoir longitudinal axis; and mounting means coupled to the longitudinal ends of said reservoir at a point between the reservoir longitudinal axis and the weir edge and rotatably mounting said reservoir on said float members to allow the depth of fluid within said reservoir to control the degree of rotation of said reservoir relative to said float members, whereby the rate of removal of skimmed fluid from the reservoir controls the depth of skim.
Claim 2
Independent Claim
107 words
A device for removing oil and like products from the surface of water comprising a spaced pair of float members; an elongated, open-sided reservoir having a weir edge extending substantially parallel with the reservoir longitudinal axis; and mounting means coupled to the longitudinal ends of said reservoir at a point between the reservoir longitudinal axis and the weir edge and rotatably mounting said reservoir on said float members to allow the depth of fluid within said reservoir to control the degree of rotation of said reservoir relative to said float members, whereby the rate of removal of skimmed fluid from the reservoir controls the depth of skim.
Claim 3
Dependent Claim
43 words
A device according to claim 1 including a third float member secured to and extending between said pair of spaced float members, and at least one suction conduit secured to said third float member and having an inlet end positioned in said reservoir.
Claim 4
Dependent Claim
19 words
A device according to claim 1 wherein said reservoir is cylindrical in shape with a flattened side facing outwardly.
Claim 5
Dependent Claim
23 words
A device according to claim 1 including means on the sides of said pair of float members for diverting oil into said reservoir.
Claim 6
Dependent Claim
37 words
A device according to claim 1 including a rotatable trash collecting means mounted to and extending between said pair of float members and comprising a three segment screen pivotally attached at its ends to said float members.
Claim 7
Dependent Claim
18 words
A device according to claim 1 wherein said float members are compartmented with closures for adding fluid therein.
Claim 8
Dependent Claim
18 words
A device according to claim 1 including a suction conduit having an inlet end positioned in said reservoir.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-17 | 1981-10-17 | 1982-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-17 | 1985-10-17 | 1986-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-17 | 1989-10-17 | 1990-04-18 | $7700.00 | Window Closed / Lapsed |