Marine vibratory sound source for beneath water seismic exploration
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 3, 2017
Grant Date -
Feb 27, 2014
app pub date -
Sep 24, 2013
filing date -
Aug 24, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A marine vibratory sound source for producing swept or pulse coded signals in a body of water and within geological structures beneath a body of water, primarily for seismic exploration of the strata beneath the bottom of the water. More particularly, a high power, servo controlled hydraulic, sound source that delivers fluid alternatively to first and second actuator pistons to move the actuator pistons to a forward and an aft position thereby axially vibrating a piston shaft having cone-shaped pistons for vibrationally moving water out and in through a plurality of ports for propagating vibratory sound. The sound source having a position sensor to determine a center point of travel and by tracking the position sensor air pressure in hollow stationary cone-shaped bulkheads is modulated to maintain the travel of the cone-shaped pistons at an equal distance in the fore and aft directions from the determined center point.
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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CHELMINSKI STEPHEN | PETERBOROUGH NEW HAMPSHIRE 03458 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Chelminski, Stephen | Antrim, US | 20 | 175 |
# of filed Patents : 20 Total Citations : 175 |
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Patent Citation Ranking
- 1 Citation Count
- G01V Class
- 11.56 % this patent is cited more than
- 8 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 3, 2028 |
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 |
Full Text

Legal Events
Date | Code | Event | Description |
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Nov 09, 2022 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8 |
Jan 01, 2021 | AS | ASSIGNMENT | free format text: CHANGE OF NAME;ASSIGNOR:HITACHI AUTOMOTIVE SYSTEMS, LTD.;REEL/FRAME:056299/0447 Owner name: HITACHI ASTEMO, LTD., JAPAN Effective Date: Jan 01, 2021 |
Nov 15, 2018 | 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 |
Dec 05, 2015 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
May 26, 2015 | I | Issuance | |
May 06, 2015 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Oct 30, 2014 | P | Published | |
Aug 12, 2014 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KAKEGAWA, SHINJI;MITOMA, HIROTO;OSHIMA, AKIRA;AND OTHERS;SIGNING DATES FROM 20140418 TO 20140514;REEL/FRAME:033519/0317 Owner name: HITACHI AUTOMOTIVE SYSTEMS, LTD., JAPAN |
Oct 24, 2012 | F | Filing | |
Nov 11, 2011 | PD | Priority Date |

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