US3762557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating skimmer
Assignee: WATERMASTER IND Ltd
•
Filing: 1971-08-23
•
Granted: 1973-10-02
•
Expires: 1991-08-23
Abstract
Abstract A floating surface skimmer particularly adapted for use with a floating pump housed by said skimmer. The skimmer is circular in shape and has a plurality of peripheral radial openings communicating with a central opening in which the pump is housed whereby each of the said peripheral openings acts as a weir. The height of the skimmer above a liquid surface can be adjusted to control the depth of liquid skimmed.
Inventors
- 👤 A Tudor
- 👤 E Tudor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:25
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/24; B01D21/2433; E; E02; E02B; E02B15/00; E02B15/04; E02B15/10; E02B15/106; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/923
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
138 words
A floating surface skimmer suitable for use with a portable pump for skimming a liquid, comprising a floatable upper annular section having a central opening, a plurality of arch-shaped cut outs formed in the underside of said annular section and extending radially from said central opening to the periphery therein, a lower section dismountably secured to the underside of said upper section, said lower section including a central receptacle having a substantially conical or cylindrical truncated wall and a flange portion circumscribing the upper edge of said wall, said flange portion being coterminous with the annular section of said upper section, and at least three flotation cylinders releasably mounted at three equally spaced locations about the annular section and selectively adjustable to vary the height of the periphery of said skimmer floating above the liquid to be skimmed.
Claim 2
Dependent Claim
138 words
A floating surface skimmer suitable for use with a portable pump for skimming a liquid, comprising a floatable upper annular section having a central opening, a plurality of arch-shaped cut outs formed in the underside of said annular section and extending radially from said central opening to the periphery therein, a lower section dismountably secured to the underside of said upper section, said lower section including a central receptacle having a substantially conical or cylindrical truncated wall and a flange portion circumscribing the upper edge of said wall, said flange portion being coterminous with the annular section of said upper section, and at least three flotation cylinders releasably mounted at three equally spaced locations about the annular section and selectively adjustable to vary the height of the periphery of said skimmer floating above the liquid to be skimmed.
Claim 3
Dependent Claim
47 words
A floating surface skimmer according to claim 1 in which said upper section includes an opening formed on its upper surface and extending radially from said central opening to its periphery to accommodate a hose connected to the pump when said pump is mounted on said skimmer.
Claim 4
Dependent Claim
27 words
A floating surface skimmer according to claim 2 in which said central receptacle has a plurality of radial ribs formed therein for supporting a bottom suction pump.
Claim 5
Dependent Claim
54 words
A floating surface skimmer according to claim 2 in which said cylinders are in communication with a supply of air whereby air can be introduced into or exhausted from said cylinders to control the liquid level therein for vertical adjustment of the height of flotation of the skimmer above the liquid to be skimmed.
References Cited (Backward Citations)
US3397647A
Cited
US3534859A
Cited
US3598501A
Cited
US3642140A
Cited
US3701429A
Cited
US3690463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |