EP0003384A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A dredgings transport conduit
Assignee: LIESBOSCH BV
•
Filing: 1979-01-23
•
Granted: —
•
Expires: 1999-01-23
Abstract
Abstract A transport conduit (3) comprises a stone catcher housing (17) having a grid basket (22) arranged in it. The stones sticking in the meshes of the grid basket are flushed out of it or they are getting loosened when removing the basket from the housing.
Inventors
- 👤 Tjako Aaldrik Wolters
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 23:43
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/88; E02F3/90; E02F3/94; F; F16; F16L; F16L55/00; F16L55/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
149 words
A transport conduit including a suction pipe connected with a pump, carried by a floating body and having a nozzle and at least one stationary stone catcher included in the suction pipe and disposed on deck for sieving out large stones and/or other large objects from the dredged material, for example, spoil, said stone catcher comprising a stone catcher housing having a mixture inlet, a mixture outlet and a stone outlet provided with a door hermetically closed against the open air and hinged to the stone catcher housing, which is provided with a grid basket to be traversed from a high to a low level and surrounded by an outlet chamber to be traversed by the mixture and opening out in a mixture outlet, characterized in that the stone catcher housing is provided with additional discharge means permanently fixed thereto for loosening the stones collected in the grid basket.
Claim 2
Dependent Claim
149 words
A transport conduit including a suction pipe connected with a pump, carried by a floating body and having a nozzle and at least one stationary stone catcher included in the suction pipe and disposed on deck for sieving out large stones and/or other large objects from the dredged material, for example, spoil, said stone catcher comprising a stone catcher housing having a mixture inlet, a mixture outlet and a stone outlet provided with a door hermetically closed against the open air and hinged to the stone catcher housing, which is provided with a grid basket to be traversed from a high to a low level and surrounded by an outlet chamber to be traversed by the mixture and opening out in a mixture outlet, characterized in that the stone catcher housing is provided with additional discharge means permanently fixed thereto for loosening the stones collected in the grid basket.
Claim 3
Dependent Claim
24 words
A transport conduit as claimed in claim 1, characterized in that the additional discharge means comprise a flushing duct communicating with the outlet chamber.
Claim 4
Dependent Claim
43 words
A transport conduit as claimed in claim 1 or 2, characterized in that the additional discharge means comprise pivotal means for turning the grid basket between a working position inside the stone catcher housing and a discharge position outside the stone catcher housing.
Claim 5
Dependent Claim
54 words
A transport conduit as claimed in anyone of the preceding claims, characterized in that at least one stone catcher housing is provided with at least two grid baskets, which can be alternately moved between a working position inside the housing and a discharge position outside the housing with the aid of additional discharge means.
Claim 6
Dependent Claim
66 words
A transport conduit as claimed in anyone of the preceding claims, in which the stone outlet opening is provided in a side and/or the bottom of the stone catcher housing, characterized in that the additional discharge means comprise mechanisms for moving the grid basket out of and into the stone catcher housing through the stone outlet arranged in the side and/or the bottom of the housing.
Claim 7
Dependent Claim
54 words
A transport conduit as claimed in anyone of the preceding claims, characterized in that two stone catchers arranged side by side and communicating with a common suction pipe alternately communicate with a movable nozzle disposed near the stone catchers and alternately opening out in one of, the two mixture inlets of these stone catchers.
Claim 8
Dependent Claim
42 words
A transport conduit as claimed in anyone of the preceding claims, characterized in that the stone catcher comprises at least one grid basket consisting of a flexible net, which is deformable between a basket-like working position and a substantially straightened discharge state.
Claim 9
Dependent Claim
19 words
A transport conduit as claimed in anyone of the preceding claims, characterized by shaking means engaging the grid basket.
Claim 10
Dependent Claim
148 words
A transport conduit comprising a suction pipe communicating with a pump, carried by a floating body and having a nozzle and at least one stationary stone catcher included in the suction pipe and disposed on deck for sieving out large stones and/or other large objects from the dredged mixture, for example, spoil, said stone catcher comprising a stone catcher housing having a mixture inlet, a mixture outlet and a stone outlet provided with a door hermetically closed against the open air and hinged to the stone catcher housing, which is provided with a grid basket to be traversed from a high to a low level and surrounded by an outlet chamber to be traversed by the mixture and opening out in a mixture outlet, characterized in that a rail extending as far as beyond the board guides a grab carriage carrying a tiltable grab engaging the grid basket.
Claim 11
Dependent Claim
148 words
A transport conduit comprising a suction pipe communicating with a pump, carried by a floating body and having a nozzle and at least one stationary stone catcher included in the suction pipe and disposed on deck for sieving out large stones and/or other large objects from the dredged mixture, for example, spoil, said stone catcher comprising a stone catcher housing having a mixture inlet, a mixture outlet and a stone outlet provided with a door hermetically closed against the open air and hinged to the stone catcher housing, which is provided with a grid basket to be traversed from a high to a low level and surrounded by an outlet chamber to be traversed by the mixture and opening out in a mixture outlet, characterized in that a rail extending as far as beyond the board guides a grab carriage carrying a tiltable grab engaging the grid basket.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.