Patent US4248539A successfully refreshed from Google Patents.
US4248539A
Expired / Lapsed
US
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Material spreader
Assignee: Individual
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Filing: 1978-12-26
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Granted: 1981-02-03
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Expires: 1998-12-26
Abstract
Abstract A solids spreader in the form of a three-dimensional quincunx including a vertical column having a number of layers of parallel bars extending horizontally across it to deflect falling material with the bars in each layer being set at an angle to the bars in adjacent layers and being offset with respect to the bars in the next layer above and below in the same direction.
Inventors
- 👤 Edwin M. Glocker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:21
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/04; B65G69/0441; B01; B01F; B01F25/00; B01F25/80; B01F25/83
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
223 words
A device for uniformly spreading a fluent material comprising in combination a vertical column formed by solid enclosing side walls, said column having an open top and an open bottom and being of uniform cross-section from top to bottom, a plurality of stacked rows of spaced parallel bars extending across said column, the bars in each row being uniformly spaced across the entire cross-section of said column, a first set of said rows having the bars therein extending in a first direction, a second set of said rows having the bars therein extending in a second direction which is at an angle with respect to said first direction, the rows of said first set being positioned with respect to the rows of said second set so that the bars in each row are juxtaposed at an angle with respect to the bars in the rows immediately above and below, the bars in every other row of a given set being in the same vertical plane, the bars in intervening rows of said given set being laterally offset with respect to the bars in the rows of said given set immediately above and below, the spacing between bars in any given row and between the rows being sufficient to permit the flow of material through said device without bridging and from the open bottom.
Claim 2
Independent Claim
223 words
A device for uniformly spreading a fluent material comprising in combination a vertical column formed by solid enclosing side walls, said column having an open top and an open bottom and being of uniform cross-section from top to bottom, a plurality of stacked rows of spaced parallel bars extending across said column, the bars in each row being uniformly spaced across the entire cross-section of said column, a first set of said rows having the bars therein extending in a first direction, a second set of said rows having the bars therein extending in a second direction which is at an angle with respect to said first direction, the rows of said first set being positioned with respect to the rows of said second set so that the bars in each row are juxtaposed at an angle with respect to the bars in the rows immediately above and below, the bars in every other row of a given set being in the same vertical plane, the bars in intervening rows of said given set being laterally offset with respect to the bars in the rows of said given set immediately above and below, the spacing between bars in any given row and between the rows being sufficient to permit the flow of material through said device without bridging and from the open bottom.
Claim 3
Dependent Claim
12 words
The device of claim 1 wherein said angle is a right angle.
Claim 4
Dependent Claim
22 words
The device of claim 2 wherein the column is rectangular and the bars are disposed in the form of a three-dimensional quincunx.
Claim 5
Dependent Claim
10 words
The device of claim 3 wherein the column is square.
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) | 1984-02-03 | 1984-08-04 | 1985-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-03 | 1988-08-04 | 1989-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-03 | 1992-08-04 | 1993-02-03 | $7700.00 | Window Closed / Lapsed |