Ring shaped spring device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
May 26, 2004
filing date -
Sep 30, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Importance

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Abstract
A spring device comprising at least one annular support plate defining a ring with a central axis; a plurality of circumferentially spaced, parallel oriented coil springs disposed about the at least one annular plate; and, a plurality of lock assemblies spaced about the plate. Each of the lock assemblies being in position within a spring cavity of one of the coil springs to allow additional springs to be provided on the spring device. In addition, the lock assemblies are dimensioned so that the coil spring is retained in a prestressed condition.
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 | |
---|---|---|
BARNES GROUP INC | 123 MAIN STREET P O BOX 489 BRISTOL CT 06011-0489 |
International Classification(s)

- 2004 Application Filing Year
- F16F Class
- 335 Applications Filed
- 166 Patents Issued To-Date
- 49.56 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Costello, Philip G | North Haven, CT | 9 | 81 |
# of filed Patents : 9 Total Citations : 81 | |||
Hrovat, Frank R | Sylvania, OH | 5 | 32 |
# of filed Patents : 5 Total Citations : 32 |
Cited Art Landscape
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Patent Citation Ranking
- 3 Citation Count
- F16F Class
- 2.59 % this patent is cited more than
- 21 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 |
---|---|---|---|
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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