Patent US4447925A successfully refreshed from Google Patents.
US4447925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sluice apparatus for cleaning the interior of pipes
Assignee: ALFRED GUTMANN und Co Firma GmbH
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Filing: 1982-03-31
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Granted: 1984-05-15
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Expires: 2002-03-31
Abstract
Abstract A sluice apparatus intended for dosed introduction of abrasive or rubbing elements into, and removal from, a liquid-carrying pipe or tube line system includes a drum-like collecting vessel with three connecting valves--namely, two continuous flow valves and one catcher valve. Disposed inside the vessel is an apertured catcher basket which is spaced from the inside wall of the vessel and which has the geometry of a partial drum with two side plates. Its upper end is secured by means of holding tubes adapted to be supported on holding pins so that the basket can be easily inserted and withdrawn.
Inventors
- 👤 Erich O. Riedel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:09
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/26; F16L55/46; F28; F28G; F28G1/00; F28G1/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
106 words
A sluice apparatus for dosed introduction of rubbing elements into, and removal from, a liquid-carrying pipeline, comprising: a drum-shaped collecting vessel interposable into the pipeline having a flow inlet valve and a flow outlet valve in the upper portion thereof for establishing a continuous flow therethrough, said drum-shaped collecting vessel also having a catcher valve in the lower portion thereof; and a catcher basket with side plates having a multiplicity of apertures formed therein arranged inside said vessel above said catcher valve in spaced relation from the inside wall of said vessel so that said rubbing elements enter said catcher basket from said flow inlet valve.
Claim 2
Dependent Claim
106 words
A sluice apparatus for dosed introduction of rubbing elements into, and removal from, a liquid-carrying pipeline, comprising: a drum-shaped collecting vessel interposable into the pipeline having a flow inlet valve and a flow outlet valve in the upper portion thereof for establishing a continuous flow therethrough, said drum-shaped collecting vessel also having a catcher valve in the lower portion thereof; and a catcher basket with side plates having a multiplicity of apertures formed therein arranged inside said vessel above said catcher valve in spaced relation from the inside wall of said vessel so that said rubbing elements enter said catcher basket from said flow inlet valve.
Claim 3
Dependent Claim
42 words
The sluice apparatus of claim 1, wherein said catcher basket has the shape of a partial drum which defines a free space provided coaxially between said flow inlet and outlet valves, from said vessel inside wall to the catcher basket outside wall.
Claim 4
Dependent Claim
34 words
The sluice apparatus of claim 1, wherein said collecting vessel has at least one removable cover and wherein said catcher basket is removably mounted therein to permit withdrawal thereof after removal of said cover.
Claim 5
Dependent Claim
27 words
The sluice apparatus of claim 1, wherein said catcher basket comprises a trough-shaped base and wherein said catcher basket has lateral upper ends secured to holding pins.
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) | 1987-05-15 | 1987-11-14 | 1988-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-15 | 1991-11-14 | 1992-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-15 | 1995-11-14 | 1996-05-15 | $7700.00 | Window Closed / Lapsed |