Patent US2359996A successfully refreshed from Google Patents.
EP0132802A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method and apparatus for the generation and utilization of a spiral gas stream in a pipeline
Assignee: Individual
•
Filing: 1984-07-20
•
Granted: —
•
Expires: 2004-07-20
Abstract
Abstract @ Uniform flow of gas flowing in a cylinder having inner diameter larger than that of a pipeline is introduced through a funnelform reducer into the inlet of the pipeline, where uniform flow of gas turned to a spiral gas stream by bringing to the mean gas stream velocity faster than 20 meter per second there. When solid particles are introduced into the spiral gas stream zone, they are transported to the outlet of the pipeline. A compressed gas layer is formed along the inside wall of the pipeline by the spiral motion of gas stream, and the layer prevents the direct contact of the solid particles to the inside wall of the pipeline which causes the erosion of the pipeline. As the center part of the cross section of the pipeline becomes very low pressure, especially along the axis of the pipeline, solid particles containing or accompanying volatile matters are desiccated or concentrated as a result of the evaporation of volatile matters while being transported in the pipeline. When grinding powder (abrasive) is transported by the spiral gas stream and spattered on an object, the surface of the object is ground without consumption of much energy.
Inventors
- 👤 Kiyochi Horii
- 👤 Toshiaki Murata
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 11:43
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/40; B65G53/42; B65G53/48; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/206; Y10T137/2087
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
63 words
A method for the generation of a spiral gas stream in a pipeline which comprises introducing a uniform flow of gas flowing in a cylinder having inner diameter larger than that of the pipeline into the inlet of the pipeline through a funnelform reducer and bringing the mean gas stream velocity in the pipeline to that faster than 20 meter per second .
Claim 2
Independent Claim
63 words
A method for the generation of a spiral gas stream in a pipeline which comprises introducing a uniform flow of gas flowing in a cylinder having inner diameter larger than that of the pipeline into the inlet of the pipeline through a funnelform reducer and bringing the mean gas stream velocity in the pipeline to that faster than 20 meter per second .
Claim 3
Independent Claim
75 words
A method for the transportation of solid particles through a pipeline which comprises introducing the solid particles into a spiral gas stream zone in the pipeline generated by introducing a uniform flow of gas flowing in a cylinder having inner diameter larger than that of the pipeline into the inlet of the pipeline through a funnelform reducer and bringing the mean gas stream velocity in the pipeline to that faster than 20 meter per second.
Claim 4
Independent Claim
75 words
A method for the transportation of solid particles through a pipeline which comprises introducing the solid particles into a spiral gas stream zone in the pipeline generated by introducing a uniform flow of gas flowing in a cylinder having inner diameter larger than that of the pipeline into the inlet of the pipeline through a funnelform reducer and bringing the mean gas stream velocity in the pipeline to that faster than 20 meter per second.
Claim 5
Dependent Claim
24 words
A method of claim 1 or claim 2 wherein the mean gas stream velocity in the cylinder is less than 10 meter per second.
Claim 6
Dependent Claim
22 words
A method of claim 2 wherein said solid particles are a mixture of larger size solid particles and smaller size solid. particles.
Claim 7
Dependent Claim
22 words
A method of claim 2 wherein said solid particles are a mixture of heavier weight solid particles and lighter weight solid particles.
Claim 8
Independent Claim
76 words
A method for the desiccation or concentration of solid particles containing or accompanying volatile matters which comprises introducing said solid particles into a spiral gas stream zone generated by introducing a uniform flow of gas flowing in a cylinder having inner diameter larger than that of the pipeline into the inlet of the pipeline through a funnelform reducer and bringing the mean gas stream velocity in the pipeline to that faster than 20 meter per second.
Claim 9
Independent Claim
76 words
A method for the desiccation or concentration of solid particles containing or accompanying volatile matters which comprises introducing said solid particles into a spiral gas stream zone generated by introducing a uniform flow of gas flowing in a cylinder having inner diameter larger than that of the pipeline into the inlet of the pipeline through a funnelform reducer and bringing the mean gas stream velocity in the pipeline to that faster than 20 meter per second.
Claim 10
Dependent Claim
67 words
A method of claim 6 wherein the desiccated or concentrated solid particles in a spiral gas stream in a pipeline are separated from the gas stream by blowing the gas stream from the outlet of the pipeline upon a plate which is placed substantially at right angles to the stream with some distance from the outlet of the pipeline and piling the solid particles on the plate.
Claim 11
Independent Claim
107 words
A method for the grinding of an object which comprises: a. transporting grinding powder (abrasive) through a pipeline by introducing it into a spiral gas stream zone in a pipeline generated by introducing a uniform flow of gas flowing in a cylinder having inner diameter larger than that of the pipeline into the inlet of the pipeline through a funnelform reducer and bringing the mean gas stream velocity in the pipeline to that faster than 20 meter per second. b. spattering the grinding powder (abrasive) which has been transported in the pipeline upon the surface of an object which is set at the outlet of the pipeline.
Claim 12
Independent Claim
107 words
A method for the grinding of an object which comprises: a. transporting grinding powder (abrasive) through a pipeline by introducing it into a spiral gas stream zone in a pipeline generated by introducing a uniform flow of gas flowing in a cylinder having inner diameter larger than that of the pipeline into the inlet of the pipeline through a funnelform reducer and bringing the mean gas stream velocity in the pipeline to that faster than 20 meter per second. b. spattering the grinding powder (abrasive) which has been transported in the pipeline upon the surface of an object which is set at the outlet of the pipeline.
Claim 13
Independent Claim
90 words
An apparatus for the generation of a spiral gas stream in a pipeline, characterized by a cylinder (11) having inner diameter larger than that of the pipeline (2), a bottom plate (12) attached to one end of the cylinder (11), a funnelform reducer (13) connected to the other end of the cylinder (11) and at least one gas inlet pipe (14) installed at the side of the cylinder (11) so as to cause the flow line of the feed gas into the cylinder to cross the axis of the cylinder.
Claim 14
Independent Claim
90 words
An apparatus for the generation of a spiral gas stream in a pipeline, characterized by a cylinder (11) having inner diameter larger than that of the pipeline (2), a bottom plate (12) attached to one end of the cylinder (11), a funnelform reducer (13) connected to the other end of the cylinder (11) and at least one gas inlet pipe (14) installed at the side of the cylinder (11) so as to cause the flow line of the feed gas into the cylinder to cross the axis of the cylinder.
Claim 15
Independent Claim
121 words
An apparatus for the transportation of solid particles by a spiral gas stream in a pipeline (2), characterized by a cylinder (11) having inner diameter larger than that of the pipeline (2), a bottom plate (12) attached to one end of the cylinder (11), a funnelform reducer (13) connected to the other end of the cylinder (11), at least one gas inlet pipe (14) installed at the side of the cylinder (11) so as to cause the flow line of the feed gas into the cylinder (11) to cross the axis of the cylinder, and a feed pipe (15) of solid particles inserted from the center of the bottom plate (12) into the cylinder along the axis of the cylinder (11).
Claim 16
Independent Claim
121 words
An apparatus for the transportation of solid particles by a spiral gas stream in a pipeline (2), characterized by a cylinder (11) having inner diameter larger than that of the pipeline (2), a bottom plate (12) attached to one end of the cylinder (11), a funnelform reducer (13) connected to the other end of the cylinder (11), at least one gas inlet pipe (14) installed at the side of the cylinder (11) so as to cause the flow line of the feed gas into the cylinder (11) to cross the axis of the cylinder, and a feed pipe (15) of solid particles inserted from the center of the bottom plate (12) into the cylinder along the axis of the cylinder (11).
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.