Patent US3973802A successfully refreshed from Google Patents.
US3973802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor line fluidizer
Assignee: General Resource Corp
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Filing: 1975-03-06
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Granted: 1976-08-10
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Expires: 1995-03-06
Abstract
Abstract Apparatus is disclosed for insertion into a conveying system line wherein particles are conveyed by a gaseous medium. The apparatus accepts a pressurized gas input and develops therefrom in an internal chamber and annular orifice a gas flow having an internally-directed refluidizing component and a longitudinally-directed conveyor film component.
Inventors
- 👤 Sung Lim Kwon
- 👤 Josef Pausch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:04
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/52; B65G53/521; B65G53/58
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
217 words
An apparatus for propagating particles suspended in a gaseous stream through a conveying system, comprising: a. an inlet pipe having a first end constructed for connection into the conveying system in axial flow alignment with said gaseous stream; b. an outlet pipe having a first end constructed for connection into the conveying system in axial alignment downstream of said inlet pipe, said outlet pipe having an axially-symmetric expanding contour fitted over said inlet pipe, and having an end plate closing about said inlet pipe, said end plate being inclined at an angle of from 2° to 45° from a plane which is perpendicular to the inlet pipe axial direction; c. a chamber external said inlet pipe and formed by the interior surfaces of said outlet pipe expanding contour and end plate, and the exterior surface of said inlet pipe, and having an annular output orifice about the interior end of said inlet pipe; d. an inlet for receiving pressurized gas, opening into said chamber at a point approximately tangential to the chamber inner surface and adjacent the inclined end plate at a position closest to said inlet pipe first end; and e. means for telescoping said inlet pipe into said outlet pipe expanded contour through said inclined end plate, for varying the chamber output annular orifice size.
Claim 2
Independent Claim
217 words
An apparatus for propagating particles suspended in a gaseous stream through a conveying system, comprising: a. an inlet pipe having a first end constructed for connection into the conveying system in axial flow alignment with said gaseous stream; b. an outlet pipe having a first end constructed for connection into the conveying system in axial alignment downstream of said inlet pipe, said outlet pipe having an axially-symmetric expanding contour fitted over said inlet pipe, and having an end plate closing about said inlet pipe, said end plate being inclined at an angle of from 2° to 45° from a plane which is perpendicular to the inlet pipe axial direction; c. a chamber external said inlet pipe and formed by the interior surfaces of said outlet pipe expanding contour and end plate, and the exterior surface of said inlet pipe, and having an annular output orifice about the interior end of said inlet pipe; d. an inlet for receiving pressurized gas, opening into said chamber at a point approximately tangential to the chamber inner surface and adjacent the inclined end plate at a position closest to said inlet pipe first end; and e. means for telescoping said inlet pipe into said outlet pipe expanded contour through said inclined end plate, for varying the chamber output annular orifice size.
Claim 3
Dependent Claim
37 words
The apparatus as claimed in claim 1 wherein said means for telescoping said inlet pipe further comprises a threaded coupling between said inlet pipe exterior surface and said inclined end plate into said outlet pipe enlarged portion.
Claim 4
Dependent Claim
23 words
The apparatus of claim 2 wherein the inlet pipe and outlet pipe connections into the conveying system are of substantially equal cross-sectional areas.
Claim 5
Dependent Claim
29 words
The apparatus of claim 3 wherein the cross-sectional area of said chamber annular output orifice is no greater than the cross-sectional area of said inlet for receiving pressurized gas.
Claim 6
Dependent Claim
28 words
The apparatus of claim 3 wherein the cross-sectional area of said chamber annular output orifice is less than the cross-sectional area of said inlet for receiving pressurized gas.
Claim 7
Dependent Claim
33 words
The apparatus of claim 5 wherein said annular orifice cross-sectional area is adjusted at a dimension whereby the pressure in said chamber exceeds the pressure at said inlet pipe by at least 10%.
Claim 8
Dependent Claim
20 words
The apparatus of claim 5 wherein said annular orifice has a radial dimension of between 1/32 inch and 1/16 inch.
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) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |