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US4337704A
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Turbulent-water way
Assignee: Mannesmann Demag AG
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Filing: 1980-05-28
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Granted: 1982-07-06
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Expires: 2000-05-28
Abstract
Abstract A turbulent waterway, having boats guided in a trough made from bargrating, individual plates of which are connected with each other, the side of the trough being covered with a dense synthetic plastic film.
Inventors
- 👤 Klaus Becker
- 👤 Jurgen Cittrich
- 👤 Karl E. Kaufmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:02
CPC Classifications
A; A63; A63G; A63G3/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
57 words
A trough for a turbulent waterway comprising: (a) a bottom surface constructed of bar grating; (b) two side walls constructed of bar grating; (c) said side walls being loosely connected to said bottom surface and extending upwardly therefrom; and (d) said bottom surface and said side walls having an overlying synthetic film for providing a watertight environment.
Claim 2
Dependent Claim
57 words
A trough for a turbulent waterway comprising: (a) a bottom surface constructed of bar grating; (b) two side walls constructed of bar grating; (c) said side walls being loosely connected to said bottom surface and extending upwardly therefrom; and (d) said bottom surface and said side walls having an overlying synthetic film for providing a watertight environment.
Claim 3
Dependent Claim
20 words
A trough as claimed in claim 1, wherein: (a) said side walls are inclined with respect to said bottom surface.
Claim 4
Dependent Claim
36 words
A trough as claimed in claim 1, wherein: (a) said bottom surface and/or at least one of said side walls are constructed of at least two bar grates which are themselves loosely connected to one another.
Claim 5
Dependent Claim
20 words
A trough as claimed in claim 1, wherein: (a) said side walls are connected to said bottom surface by mortar.
Claim 6
Dependent Claim
25 words
A trough as claimed in claim 1, wherein: (a) sheet metal is provided to said side walls between said bar grating and said synthetic film.
Claim 7
Dependent Claim
31 words
A trough as claimed in claim 5, wherein: (a) said sheet metal extends upwardly from said bottom surface, and above said side walls to thereby provide upwardly extending water retaining edges.
Claim 8
Dependent Claim
47 words
A trough as claimed in claim 1, wherein: (a) said bottom surface is provided with a center guide member which is adapted to control lateral displacement of a boat riding in said trough; and (b) said guide member is positioned between two control surfaces of said boat.
Claim 9
Dependent Claim
15 words
A trough as claimed in claim 7, wherein: (a) said center guide member is flat.
Claim 10
Dependent Claim
19 words
A trough as claimed in claim 8, wherein: (a) said center guide member is supported on said bottom surface.
Claim 11
Dependent Claim
37 words
A trough as claimed in claim 9, wherein: (a) said center guide member is secured to said bottom surface by bolts; and (b) said bolts pass through integral bushings of said bar grating of said bottom surface.
References Cited (Backward Citations)
US3853067A
Cited
US4194733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-05 | 1986-01-04 | 1986-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-05 | 1990-01-04 | 1990-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-05 | 1994-01-04 | 1994-07-06 | $7700.00 | Window Closed / Lapsed |