Rail brake device having permanent magnetic energization
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 9, 1999
Grant Date -
N/A
app pub date -
Apr 2, 1998
filing date -
Oct 3, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rail brake device (1) having permanent magnetic energization, comprising a housing (3) of magnetizable material, which housing is mounted for up and down movement and has at least one permanent magnetic element (5) which in an operating position of the rail brake device is magnetically coupled to a rail (2), wherein the magnetic element is fixedly mounted along a first wall of a cavity in the housing; a switching element (16) of magnetizable material, slidable back and forth, is located next to the magnetic element, and a second wall of the cavity comprises two parts separated by a magnetic barrier (11), wherein, in the rest position, the switching element forms a magnetic connection between the magnetic element and a part of the second wall (19) of the cavity which is in direct connection with a side of the magnetic element facing away from the switching element, while in the operating position, the switching clement forms a magnetic connection between the permanent magnetic element and another part of the second wall, which part of the second wall is magnetically coupled to a wearing piece (13) of the brake device.
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 | |
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SAB WABCO B V | 8914 AZ LEEUWARDEN |
International Classification(s)

- 1998 Application Filing Year
- B61H Class
- 11 Applications Filed
- 7 Patents Issued To-Date
- 63.64 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Hooghiem, Jelle | Zoetermeer, NL | 3 | 9 |
# of filed Patents : 3 Total Citations : 9 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 1 Citation Count
- B61H Class
- 11.11 % this patent is cited more than
- 26 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 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Oct 22, 2003 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Sep 22, 2003 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Sep 21, 2003 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Sep 21, 2003 |
Apr 09, 2003 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Sep 21, 1999 | I | Issuance | |
Oct 15, 1996 | F | Filing | |
Oct 15, 1996 | PD | Priority Date | |
Sep 27, 1996 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HULSEBUS, JON L.;REEL/FRAME:008254/0930 Owner name: K-LINE INDUSTRIES, INC., MICHIGAN Effective Date: Sep 27, 1996 |

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