On-board hydraulic fluid degasification system for a hydraulic hybrid vehicle
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 18, 2014
Grant Date -
Oct 4, 2012
app pub date -
Mar 29, 2012
filing date -
Mar 31, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A fluid degasification system for a hydraulic circuit includes a gas/fluid separation tank, a fluid entry passage directing fluid into a small foam generating cup containing foam and a small amount of additional fluid, thereby stimulating foam formation. A separation screen is positioned below the foam generating cup to receive bubbles formed in the cup and to allow liquid to pass through the screen to a degasified-fluid collecting chamber below the screen as the bubbles resting on the separation screen decompose.
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 | |
---|---|---|
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE U S ENVIRONMENTAL PROTECTION AGENCY | WASHINGTON DC |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Imfeld, Sterling | Dexter, US | 1 | 5 |
# of filed Patents : 1 Total Citations : 5 | |||
Kramer, Dustin | Helotes, US | 7 | 9 |
# of filed Patents : 7 Total Citations : 9 | |||
Williams, David | San Antonio, US | 273 | 4987 |
# of filed Patents : 273 Total Citations : 4987 |
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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 | Aug 18, 2025 |
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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Legal Events
Date | Code | Event | Description |
---|---|---|---|
Apr 28, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Nov 14, 2017 | I | Issuance | |
Oct 25, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jan 29, 2015 | P | Published | |
Aug 29, 2014 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HAMA, YUKIO;OKAMOTO, KOICHIRO;HIROI, JUNKO;REEL/FRAME:033658/0592 Owner name: SEKISUI PLASTICS CO., LTD., JAPAN Effective Date: Aug 29, 2014 |
Mar 29, 2013 | F | Filing | |
Sep 26, 2012 | PD | Priority Date |

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