US4073244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material handling apparatus
Assignee: SIMON-MACAWBER Ltd
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Filing: 1976-06-03
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Granted: 1978-02-14
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Expires: 1996-06-03
Abstract
Abstract Material handling apparatus for moving particulate material from at least two delivery points into a single pipeline and along the pipeline to a destination, the apparatus including at least two material inlets to the pipeline, each inlet provided with a closure member capable of sealing that inlet, and means for supplying compressed air for moving material along the pipeline.
Inventors
- 👤 Brian Snowdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:32
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/04; B65G53/06; B65G53/10; B65G53/12; F; F23; F23J; F23J1/00; F23J2900/00; F23J2900/01003
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
168 words
Material handling apparatus comprising a pipeline or the like, means connected to the pipeline for supplying intermittent blasts of high pressure compressed air to the pipeline, a material outlet at one end of said pipeline, and at least two material inlet members located between said compressed air supply means and said material outlet. each material inlet member being in the form of a chamber opening at the bottom end thereof into the pipeline and extending upwardly from the pipeline, said chamber having in its upper part a spherical closure member which is movable between an open position at which material may be passed into the chamber and a closed position at which material is prevented from passing into the chamber, said chamber being further provided with an annular seal which is mounted for movement to engage with said closure member when said closure member is in its closed position, thereby providing an air tight seal to prevent leakage of compressed air from the pipeline via said inlet member.
Claim 2
Dependent Claim
168 words
Material handling apparatus comprising a pipeline or the like, means connected to the pipeline for supplying intermittent blasts of high pressure compressed air to the pipeline, a material outlet at one end of said pipeline, and at least two material inlet members located between said compressed air supply means and said material outlet. each material inlet member being in the form of a chamber opening at the bottom end thereof into the pipeline and extending upwardly from the pipeline, said chamber having in its upper part a spherical closure member which is movable between an open position at which material may be passed into the chamber and a closed position at which material is prevented from passing into the chamber, said chamber being further provided with an annular seal which is mounted for movement to engage with said closure member when said closure member is in its closed position, thereby providing an air tight seal to prevent leakage of compressed air from the pipeline via said inlet member.
Claim 3
Dependent Claim
24 words
Material handling apparatus according to claim 1 wherein the material inlet member is also provided with means for reducing the size of solid particles.
Claim 4
Dependent Claim
49 words
A material handling apparatus according to claim 2, wherein said means for reducing the size of solid particles comprises two parallel, spaced apart, ash breaker members mounted for rotation with means provided for rotating said two members in directions to cause the ash to pass between said two members.
Claim 5
Dependent Claim
175 words
Material handling apparatus comprising two pipelines, one for ash and one for grit, each of said pipelines having a material outlet and means to supply bursts of compressed air at a location remote from said outlet, inlet members to discharge material into said pipelines, said members being located between the material outlet and the compressed air supply means of each pipeline, each material inlet member being in the form of a chamber opening at the bottom end thereof into the pipeline and extending upwardly from the pipeline, said chamber having in its upper part a spherical closure member which is movable between an position at which material may be passed into the chamber and a closed position at which material is prevented from passing into the chamber, said chamber being further provided with an annular seal which is mounted for movement to engage with said closure member when said closure member is in its closed position, thereby preventing an air tight seal to prevent leakage of compressed air from the pipeline via said inlet member.
Claim 6
Dependent Claim
175 words
Material handling apparatus comprising two pipelines, one for ash and one for grit, each of said pipelines having a material outlet and means to supply bursts of compressed air at a location remote from said outlet, inlet members to discharge material into said pipelines, said members being located between the material outlet and the compressed air supply means of each pipeline, each material inlet member being in the form of a chamber opening at the bottom end thereof into the pipeline and extending upwardly from the pipeline, said chamber having in its upper part a spherical closure member which is movable between an position at which material may be passed into the chamber and a closed position at which material is prevented from passing into the chamber, said chamber being further provided with an annular seal which is mounted for movement to engage with said closure member when said closure member is in its closed position, thereby preventing an air tight seal to prevent leakage of compressed air from the pipeline via said inlet member.
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) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |