US3829983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grid plate
Assignee: Phillips Petroleum Co
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Filing: 1971-10-27
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Granted: 1974-08-20
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Expires: 1991-10-27
Abstract
Abstract A grid plate having an inverted conical configuration, an axis, an axially aligned opening therethrough, a lower surface and an upper surface, there being formed in the upper surface a plurality of depressions with each of the depressions having an aperture penetrating the lower surface of the grid plate.
Inventors
- 👤 N White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:17
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/02; F26B3/06; F26B3/08; F26B3/082; B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/44
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
169 words
A grid plate having an inverted conical configuration with an axis, an enlarged axially aligned material discharge opening therethrough which provides a passageway for the removal of treated material from the upper surface of said grid plate, a lower surface, an upper surface converged conically downward to said opening with the upper surface having a plurality of conical depressions arranged in a triangular pattern formed therein, said depressions having angularly disposed side walls which are disposed at an angle of from about 35* to about 55* from said upper surface of said grid plate, the side walls of adjacent depressions being in intersecting relationship to form a nonplanar upper surface with the further proviso that said conical depressions are spaced such that the circle forming their base intersects with other base-forming circles, resulting in a configuration, when viewed from the top, which projects as a series of hexagonal-based inverted cones, said depressions having an aperture formed in their lower extremity, said apertures penetrating said lower surface of said grid.
Claim 2
Dependent Claim
169 words
A grid plate having an inverted conical configuration with an axis, an enlarged axially aligned material discharge opening therethrough which provides a passageway for the removal of treated material from the upper surface of said grid plate, a lower surface, an upper surface converged conically downward to said opening with the upper surface having a plurality of conical depressions arranged in a triangular pattern formed therein, said depressions having angularly disposed side walls which are disposed at an angle of from about 35* to about 55* from said upper surface of said grid plate, the side walls of adjacent depressions being in intersecting relationship to form a nonplanar upper surface with the further proviso that said conical depressions are spaced such that the circle forming their base intersects with other base-forming circles, resulting in a configuration, when viewed from the top, which projects as a series of hexagonal-based inverted cones, said depressions having an aperture formed in their lower extremity, said apertures penetrating said lower surface of said grid.
Claim 3
Dependent Claim
51 words
A grid plate according to claim 1 wherein a laminated wire mesh having a mesh size defined as ranging from about a 10 X 52 plain Dutch weave to about a 24 X 110 plain Dutch weave is attached to the upper surface in a conforming cOnfiguration of said upper surface.
Claim 4
Dependent Claim
43 words
A grid plate according to claim 1 wherein the lower surface forms an angle of up to 45* with a horizontal plane, with the lower surface and the horizontal plane having a point of convergence fixed on the axis of the grid plate.
Claim 5
Dependent Claim
20 words
A grid plate according to claim 1 wherein the apertures are formed by the projection of said angularly disposed walls.
Claim 6
Dependent Claim
22 words
A grid plate according to claim 1 wherein the apertures are axially aligned perpendicularly to the lower surface of the grid plate.
Claim 7
Dependent Claim
16 words
A grid plate according to claim 1 wherein the depressions and corresponding apertures are symmetrically distributed.
References Cited (Backward Citations)
US2740752A
Cited
GB714870A
Cited
US2990260A
Cited
US3370361A
Cited
US3379345A
Cited
US3514868A
Cited
US3765101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |