US3552424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating lift station
Assignee: YE DOCK MASTER Inc
•
Filing: 1969-04-23
•
Granted: 1971-01-05
•
Expires: 1989-04-23
Abstract
Abstract A sewer system for a floating wharf utilizing a floating lift station. Means are provided for gravity feeding sewage from a plurality of floating boat slips to a floating holding tank at the lift station, and means are provided for transferring sewage from the holding tank to a main sewage conduit.
Inventors
- 👤 Kenneth L Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:31
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/06; E02B3/062; E02B3/064; E03; E03F; E03F5/00; E03F5/22; Y; Y10; Y10T; Y10T137/00; Y10T137/6851
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
54 words
A sewer system for a floating wharf, comprising: a main sewage conduit; a floating tank for holding sewage below a first level; a plurality of floating boat slips; means for feeding sewage from said boat slips to said holding tank; and means for transferring sewage from said holding tank to said main sewage conduit.
Claim 2
Dependent Claim
54 words
A sewer system for a floating wharf, comprising: a main sewage conduit; a floating tank for holding sewage below a first level; a plurality of floating boat slips; means for feeding sewage from said boat slips to said holding tank; and means for transferring sewage from said holding tank to said main sewage conduit.
Claim 3
Dependent Claim
37 words
The system of claim 1 wherein said transferring means comprises a pump which is automatically actuated when said sewage in said holding tank reaches a predetermined level therewithin to pump said sewage into said main sewage conduit.
Claim 4
Dependent Claim
35 words
The system of claim 1 including means for securing said holding tank in substantially fixed lateral position with respect to said wharf but allowing said holding tank to move vertically with respect to said wharf.
Claim 5
Dependent Claim
34 words
The system of claim 1 wherein said holding tank is disposed beneath said wharf structure, and including rigid means extending downwardly from said wharf structure and disposed in slidable relation with said holding tank.
Claim 6
Dependent Claim
45 words
The system of claim 1 including a flexible conduit between saiD holding tank and said sewage feeding means and a flexible conduit between said holding tank and said main sewage conduit, whereby said holding tank can float between predetermined limits of flexure of said conduits.
Claim 7
Dependent Claim
19 words
The system of claim 1 including ballast means in said holding tank for limiting the upward floating level thereof.
Claim 8
Dependent Claim
60 words
A system of claim 1 wherein said sewage feeding means comprises a feed conduit having an intake and an exhaust, said intake being at a level higher than said first level, said sewer system including means for connecting said feed conduit exhaust to said holding tank whereby sewage introduced into said feed conduit is gravity fed to said holding tank.
Claim 9
Dependent Claim
45 words
The system of claim 7 wherein said feed conduit has an intake port at each of a plurality of said boat slips for enabling said feed conduit to receive sewage therefrom, each of said intake ports being at a level higher than said first level.
Claim 10
Dependent Claim
45 words
A floating lift station, comprising: a tank for holding sewage and including means defining intake and exhaust ports thereof; means for transferring sewage from said tank through said exhaust port; and rigid means disposed in slidable relation with said tank for limiting lateral movement thereof.
Claim 11
Dependent Claim
45 words
A floating lift station, comprising: a tank for holding sewage and including means defining intake and exhaust ports thereof; means for transferring sewage from said tank through said exhaust port; and rigid means disposed in slidable relation with said tank for limiting lateral movement thereof.
Claim 12
Dependent Claim
36 words
The lift station of claim 9 wherein said transferring means comprises a pump which is automatically actuated when said sewage in said holding tank reaches a predetermined level to pump said sewage through said exhaust port.
Claim 13
Dependent Claim
26 words
The lift station of claim 9 including flexible conduits on said intake and exhaust ports whereby said holding tanks can substantially free-float between predetermined flexure limits.
Claim 14
Dependent Claim
15 words
The lift station of claim 9 including means for limiting downward movement of said tank.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |