US4159785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for loading particulate matter in a vessel
Assignee: Honeywell UOP LLC
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Filing: 1977-07-14
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Granted: 1979-07-03
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Expires: 1997-07-14
Abstract
Abstract A method for loading particulate matter in a vessel. More particularly, a method for distributing particulate matter, at substantially a constant rate, uniformly across a given area to promote the dense packing of said particulate matter.
Inventors
- 👤 William M. Berry, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:50
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/002; G; G05; G05D; G05D7/00; G05D7/06; G05D7/0617; G05D7/0629; G05D7/0676
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
214 words
A method for loading solid catalytic particulate matter to an elongated catalytic hydrocarbon conversion vessel, at a substantially constant rate of loading, uniformly across a given area of said vessel by discharge of said particles from a rotatable discharge member consisting of a fluid operated driving means having a variable drive speed and dispensing apertures situated on the trailing edge of said discharge member wherein said solid catalytic particulate matter is deposited in a downflow direction to said vessel at a rate of fill of said vessel of up to twenty vertical inches per minute and at an average free fall distance of said particulate matter through a gaseous medium of at least one foot after exit from said discharge member's dispensing aperture which comprises: (a) sensing the rotational speed of said rotatable discharge member's drive means; (b) generating a first signal representative of said drive mean's rotational speed; (c) comparing said generated signal with a predetermined signal representative of the desired rotation speed of said discharge member's drive means; (d) generating a second signal representative of the differential between said generated signal and said predetermined signal; and (e) transmitting said resultant second signal to said fluid operating driving means to vary the rotational speed of said discharge member to the desired rotational speed.
Claim 2
Independent Claim
214 words
A method for loading solid catalytic particulate matter to an elongated catalytic hydrocarbon conversion vessel, at a substantially constant rate of loading, uniformly across a given area of said vessel by discharge of said particles from a rotatable discharge member consisting of a fluid operated driving means having a variable drive speed and dispensing apertures situated on the trailing edge of said discharge member wherein said solid catalytic particulate matter is deposited in a downflow direction to said vessel at a rate of fill of said vessel of up to twenty vertical inches per minute and at an average free fall distance of said particulate matter through a gaseous medium of at least one foot after exit from said discharge member's dispensing aperture which comprises: (a) sensing the rotational speed of said rotatable discharge member's drive means; (b) generating a first signal representative of said drive mean's rotational speed; (c) comparing said generated signal with a predetermined signal representative of the desired rotation speed of said discharge member's drive means; (d) generating a second signal representative of the differential between said generated signal and said predetermined signal; and (e) transmitting said resultant second signal to said fluid operating driving means to vary the rotational speed of said discharge member to the desired rotational speed.
References Cited (Backward Citations)
US3568886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-07-02 | 1983-01-01 | 1983-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-02 | 1987-01-01 | 1987-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-02 | 1991-01-01 | 1991-07-03 | $7700.00 | Window Closed / Lapsed |