Sand gate for use in a sand distribution apparatus
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United States of America Patent
Stats
-
Nov 20, 2001
Grant Date -
N/A
app pub date -
Apr 6, 2000
filing date -
Apr 6, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An apparatus for promoting desired sand distribution into a mold flask in a foundry process, comprising a proximal distribution plate mounted subjacent a hopper, a distal distribution plate slidably mounted subjacent the proximal distribution plate, and a masking plate assembly mounted subjacent to the distal distribution plate. The proximal distribution plate includes a series of primary apertures, while the distal distribution plate includes a series of repeating secondary apertures therethrough, with each series of secondary apertures corresponding to one primary aperture. The masking plate assembly includes a masking plate having a series of masking plate bores traversing therethrough, with each masking plate bore corresponding to each secondary aperture. Each masking plate bore includes a principal diameter extending through the masking plate, with the principal diameter determining the flow rate of sand through the masking plate.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
ANKURA TRUST COMPANY LLC AS THE SUCCESSOR AGENT | 140 SHERMAN STREET 4TH FLOOR FAIRFIELD CT 06824 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Sheldon, David Samuel | P.O. 307, Helena, AL 35080 | 2 | 0 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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