Hydraulic accumulator comprising a position indicator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 26, 2007
Grant Date -
Sep 28, 2006
app pub date -
Jan 22, 2004
filing date -
Mar 11, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A hydraulic accumulator includes an accumulator housing (1) formed of a non-magnetizable material and defining an axial direction of the housing. A separating element (9) can be axially displaced in the accumulator housing (1) and separates two working chambers (5, 7) from each other in the accumulator housing (1). A field-generating magnetic configuration (29) is arranged on the separating element. A series of magnetic field sensors (35) are arranged on the outer side of the accumulator housing (1), extend along the path of the axial movement of the separating element (9) and react to the field of the magnetic configuration (29) on the separating element (9) to characterize its position along the series of magnetic field sensors (35).
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 | |
---|---|---|
HYDAC TECHNOLOGYGMBH | INDUSTRIEGEBIET 66280 SULZBACH/SAAR |
International Classification(s)

- 2004 Application Filing Year
- F16L Class
- 873 Applications Filed
- 452 Patents Issued To-Date
- 51.78 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Dorr, Walter | Volklingen, DE | 7 | 53 |
# of filed Patents : 7 Total Citations : 53 |
Cited Art Landscape
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Patent Citation Ranking
- 7 Citation Count
- F16L Class
- 3.54 % this patent is cited more than
- 18 Age
Forward Cite Landscape
- No Forward Cites to Display

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 |
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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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Sep 27, 2016 | I | Issuance | |
Sep 07, 2016 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Mar 27, 2014 | P | Published | |
Nov 18, 2013 | AS | ASSIGNMENT | free format text: CONFIRMATORY LICENSE;ASSIGNOR:MONTANA STATE UNIVERSITY - BOZEMAN;REEL/FRAME:031690/0856 Owner name: NATIONAL INSTITUTES OF HEALTH (NIH), U.S. DEPT. OF Effective Date: Nov 18, 2013 |
Oct 22, 2013 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PASCUAL, DAVID W.;MADDALONI, MASSIMO;REEL/FRAME:031501/0325 Owner name: MONTANA STATE UNIVERSITY, MONTANA Effective Date: Oct 22, 2013 |
Sep 24, 2013 | F | Filing | |
Dec 09, 2011 | PD | Priority Date |

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