SHAFT SEAL AND A METHOD OF OPERATING SUCH A SHAFT SEAL
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 -
May 26, 2016
app pub date -
Jul 16, 2014
filing date -
Jul 16, 2014
priority date (Note) -
Published
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
The invention relates to a shaft seal (1), arranged to seal a rotatable drive shaft (2) from a high pressure area. The shaft seal (1) comprises a shaft seal housing (3), a first seal (10) and a second seal (20), wherein the first and second seals (10, 20) are positioned around the drive shaft (2) at different axial positions. A chamber (4) is created in between the first (10) and second seal (20), wherein the shaft seal (1) comprises a fluid supply (74-78) for supplying a pressurized fluid to the chamber (4). The first seal (10) is a mechanical seal positioned between the high pressure area and the chamber and the second seal (20) is a lip seal.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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IHC HOLLAND IE B V | 2961 AW KINDERDIJK |
International Classification(s)

- 2014 Application Filing Year
- F16J Class
- 613 Applications Filed
- 500 Patents Issued To-Date
- 81.57 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Koning, Theodorus Adrianus | Breda, NL | 4 | 10 |
# of filed Patents : 4 Total Citations : 10 | |||
Van, Opstal Timothy Alexander | Rotterdam, NL | 4 | 15 |
# of filed Patents : 4 Total Citations : 15 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 3 Citation Count
- F16J Class
- 25.15 % this patent is cited more than
- 9 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 26, 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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