RISER SLEEVE WITH AIR GAP
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Oct 22, 2015
app pub date -
Nov 19, 2013
filing date -
Nov 19, 2012
priority date (Note) -
Published
status (Latency Note)
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Abstract
A riser sleeve (100) for use in a foundry molding operation has cylindrical body in which the side wall (14) that may be untapered or that may taper uniformly from the bottom to the top (12) of the body. The riser sleeve is characterized by a plurality of cavities (102) are formed on the side wall, extending from the top in an axial direction of the body. These cavities provide air gaps when the riser sleeve is inserted into a mold, decreasing heat loss at the interface between the riser sleeve and the mold.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
ASK CHEMICALS L P | 1209 ORANGE STREET THE CORPORATION TRUST COMPANY CORPORATION TRUST CENTER WILMINGTON DE 19801 |
International Classification(s)

- 2013 Application Filing Year
- B22C Class
- 137 Applications Filed
- 129 Patents Issued To-Date
- 94.17 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
AUFDERHEIDE, Ronald C | Huber Heights, US | 18 | 57 |
# of filed Patents : 18 Total Citations : 57 | |||
HARMON, Sean R | Columbus, US | 1 | 0 |
# of filed Patents : 1 Total Citations : 0 | |||
HORVATH, Lee R | Powell, US | 3 | 2 |
# of filed Patents : 3 Total Citations : 2 | |||
SHOWMAN, Ralph E | Galloway, US | 13 | 30 |
# of filed Patents : 13 Total Citations : 30 |
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Patent Citation Ranking
- 0 Citation Count
- B22C Class
- 0 % this patent is cited more than
- 10 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 22, 2027 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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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