US5542508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid free damper
Assignee: Illinois Tool Works Inc
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Filing: 1995-06-26
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Granted: 1996-08-06
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Expires: 2015-06-26
Abstract
Abstract A fluid free damper, comprising a spindle member; housing means mounted for relative eccentric rotation with respect to the spindle member; and engagement means interposed between the spindle member and the housing means for rotation along with one of the housing means and the spindle member with respect to the other one of the housing means and the spindle member so as to be deformably compressed between the spindle member and the housing means and thereby generate a resistive damping force between the housing means and the spindle member in response to the eccentric rotation of the one of the housing means and spindle member with respect to the other one of the housing means and the spindle member.
Inventors
- 👤 Donald L. Van Erden
- 👤 Jan Toczycki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:30
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/42; F16F1/44; F16F1/445; E; E05; E05F; E05F5/00; F16F15/00; F16F15/10; F16F7/00; F16F7/02; E05Y; E05Y2201/00; E05Y2201/20; E05Y2201/21; E05Y2201/23; E05Y2201/232; E05Y2201/242; E05Y2201/252; E05Y2201/26; E05Y2201/262; E05Y2201/266; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/538; F16F2236/00; F16F2236/04; F16F2236/045
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
115 words
A fluid free damper, comprising: first and second members operably positioned proximate to each other one of said first and second members comprising an inelastic spindle member; means mounting one of said first and second members for eccentric rotatable movement with respect to the other one of said first and second members; and substantially solid engagement means positioned between said first and second members so as to be deformably compressed between said first and second members and thereby generate a resistive damping force between said first and second members upon said eccentric rotatable movement of said one of said first and second members with respect to said other one of said first and second members.
Claim 2
Dependent Claim
115 words
A fluid free damper, comprising: first and second members operably positioned proximate to each other one of said first and second members comprising an inelastic spindle member; means mounting one of said first and second members for eccentric rotatable movement with respect to the other one of said first and second members; and substantially solid engagement means positioned between said first and second members so as to be deformably compressed between said first and second members and thereby generate a resistive damping force between said first and second members upon said eccentric rotatable movement of said one of said first and second members with respect to said other one of said first and second members.
Claim 3
Dependent Claim
26 words
The damper as defined in claim 1 wherein said engagement means provide a resistive force which increases with increasing speed between said first and second members.
Claim 4
Dependent Claim
20 words
The damper as defined in claim 1, wherein said engagement means are formed front a substantially non-shearable yet deformable material.
Claim 5
Dependent Claim
120 words
A fluid free damper, comprising: a spindle member; housing means mounted for relative eccentric rotation with respect to said spindle member; and engagement means interposed between said spindle member and said housing means for rotation along with one of said housing means and said spindle member with respect to the other one of said housing means and said spindle member so as to be deformably compressed between said spindle member and said housing means and thereby generate a resistive damping force between said housing means and said spindle member in response to said eccentric rotation of said one of said housing means and said spindle member with respect to said other one of said housing means and said spindle member.
Claim 6
Dependent Claim
120 words
A fluid free damper, comprising: a spindle member; housing means mounted for relative eccentric rotation with respect to said spindle member; and engagement means interposed between said spindle member and said housing means for rotation along with one of said housing means and said spindle member with respect to the other one of said housing means and said spindle member so as to be deformably compressed between said spindle member and said housing means and thereby generate a resistive damping force between said housing means and said spindle member in response to said eccentric rotation of said one of said housing means and said spindle member with respect to said other one of said housing means and said spindle member.
Claim 7
Dependent Claim
29 words
The damper as defined in claim 4, wherein: said engagement means generates a resistive damping force which increases upon increasing speed between said spindle member and said housing means.
Claim 8
Dependent Claim
16 words
The damper as defined in claim 4 wherein said engagement means are formed as an O-ring.
Claim 9
Dependent Claim
18 words
The damper as defined in claim 6 wherein said O-ring is provided with a substantially circular cross-sectional configuration.
Claim 10
Dependent Claim
19 words
The damper as defined in claim 6 wherein said O-ring is mounted about the periphery of said spindle member.
Claim 11
Dependent Claim
29 words
The damper as defined in claim 4, including: means for varying said damping force depending upon the angular position of said housing means with respect to said spindle member.
Claim 12
Dependent Claim
85 words
A fluid free damper, comprising: a stationary spindle member; housing means mounted for rotation with respect to said spindle member; O-ring means mounted upon said housing means for rotation along with said housing means with respect to said spindle member; and disc means positioned between said spindle member and said O-ring means for cooperating with said spindle member and said housing means for causing said O-ring means to generate a resistive damping force upon rotation of said housing means with respect to said spindle member.
Claim 13
Dependent Claim
85 words
A fluid free damper, comprising: a stationary spindle member; housing means mounted for rotation with respect to said spindle member; O-ring means mounted upon said housing means for rotation along with said housing means with respect to said spindle member; and disc means positioned between said spindle member and said O-ring means for cooperating with said spindle member and said housing means for causing said O-ring means to generate a resistive damping force upon rotation of said housing means with respect to said spindle member.
Claim 14
Dependent Claim
59 words
The damper as defined in claim 10 wherein said disc means comprise a plurality of disc members positioned between said spindle member and said O-ring, each disc member providing an area of engagement with said O-ring for generating a resistive damping force to said damper upon rotation of said housing and said O-ring with respect to said spindle member.
Claim 15
Dependent Claim
19 words
The damper as defined in claim 11 wherein said resistive damping force varies with the number of discs utilized.
Claim 16
Dependent Claim
27 words
The damper as set forth in claim 11, wherein: said spindle member comprises a plurality of recesses defined therein iron respectively housing said plurality of disc members.
Claim 17
Dependent Claim
23 words
The damper as set forth in claim 11, wherein: said housing means comprises an annular recess defined therein for housing said O-ring means.
Claim 18
Dependent Claim
18 words
The damper as set forth in claim 1, wherein: one of-said first and second members comprises a closure.
Claim 19
Dependent Claim
17 words
The damper as set forth in claim 15 wherein: said closure comprises a vehicle glove box door.
Claim 20
Dependent Claim
32 words
The damper as set forth in claim 4, further comprising: detent means provided upon said housing means for indicating the relative position of said housing means with respect to said spindle member.
Claim 21
Dependent Claim
23 words
The damper as set forth in claim 13, wherein: said plurality of disc members are rotatably disposed, respectively, within said plurality of recesses.
Claim 22
Dependent Claim
54 words
The damper as set forth in claim 13, wherein: the number of said disc members disposed within said recesses is less than the number of recesses defined within said spindle member so as to selectively vary said resistive damping force generated upon said rotation of said housing means with respect to said spindle member.
Claim 23
Dependent Claim
25 words
The damper as set forth in claim 11, wherein: said resistive damping force varies with the diametrical extents, respectively, of said plurality of disc members.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-08-06 | 2000-02-05 | 2000-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-06 | 2004-02-05 | 2004-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-06 | 2008-02-05 | 2008-08-06 | $7700.00 | Window Closed / Lapsed |