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 Title: |
US3889631:
Means for effecting fluidization in pyrolytic carbon coating processes
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Lackey, Jr., Walter J.; Oak Ridge, TN
Sease, John D.; Knoxville, TN
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| Assignee: |
The United States of America as represented by the United States Energy Research and Development Administration, Washington, DC
other patents from UNITED STATES OF AMERICA, DEPARTMENT OF ENERGY (597195) (approx. 6,712)
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| Published / Filed: |
1975-06-17
/ 1974-03-18
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| Application Number: |
US1974000452166
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| IPC Code: |
Advanced:
B01J 2/00;
B01J 8/44;
C23C 16/442;
Core:
B01J 8/24;
more...
IPC-7:
C23C 13/08;
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| U.S. Class: |
Current:
118/308;
034/582;
118/DIG.005;
422/143;
Original:
118/048;
023/288.S;
034/057.A;
118/DIG.5;
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| Field of Search: |
118/DIG. 5,308,429
117/DIG. 6
034/010,57 R,57 A
432/058
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| Government Interest: |
BACKGROUND OF THE INVENTION
The present invention relates to an improved means for effecting fluidization in pyrolytic carbon coating processes. The invention described herein was made in the course of, or under, a contract with the U.S. Atomic Energy Commission.
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| Priority Number: |
| 1974-03-18 |
US1974000452166 |
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| Abstract: |
An improved gas distribution means which has utility in fluidized bed coaters for depositing pyrolytic carbon is described which consists of a plurality of gas-permeable regions within a supporting matrix comprising a relatively thick dimension for structural rigidity and relatively thin sections to inhibit clogging due to decomposition products of the fluidizing gas. A second gas distribution means feeds gas into a plenum below said first gas distribution means to insure a uniform pressurized zone of gas which serves as feed to said gas-permeable regions.
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| Attorney, Agent or Firm: |
Carlson, Dean E. ;
Zachry, David S. ;
Barrack, Irving ;
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| Primary / Asst. Examiners: |
Kaplan, Morris;
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| Family: |
None
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| Claim |
What is claimed is:
1. A fluidized bed coater comprising:
- a coating chamber and heating means therewith;
- a porous plate defining the chamber bottom wall and the upper wall of a plenum chamber;
- means feeding and distributing a fluidizing gaseous stream into said plenum chamber, said gas then passing through said porous plate to effect fluidization of particulate material supported on said plate;
- said porous plate being relatively thick, whereby to adequately support the particulate material in a quiessent state, and having a plurality of uniformly spaced apertures therein;
- a relatively thin replaceable porous plate supported in each said aperture; and
- said thin plate of a dimension whereby the passageways thereof will not clog due to decomposition products of said gaseous stream.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 2 U.S. patent(s) that reference this one
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