Patent US4369988A successfully refreshed from Google Patents.
US4369988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizer fitting apparatus
Assignee: Individual
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Filing: 1980-10-22
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Granted: 1983-01-25
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Expires: 2000-10-22
Abstract
Abstract The reciprocal device is interposed between an end of of a torsion bar and the swing arm of a suspension system for a front wheel of a vehicle so as to reciprocate in both the extensional and intensional directions with the stroke thereof being limited to a length remarkably smaller than the maximum amplitude of the ends of the torsion bar, in response to the movement of the torsion bar. The device has a resisting force that gradually increases while the device is in the advance process from the neutral position to the end of the both strokes but substantially naught when it is in the return process from the end of the stroke to the neutral position.
Inventors
- 👤 Tatsuya Takagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:18
CPC Classifications
B; B60; B60G; B60G21/00; B60G21/02; B60G21/04; B60G21/05; B60G21/055; B60G21/0551; B60G2204/00; B60G2204/10; B60G2204/12; B60G2204/122; B60G2204/1224
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
146 words
A stabilizer assembly comprising: (a) a torsion bar having a straight central portion and bent end portions, said central portion being adapted to be twistably mounted on the frame of a vehicle; (b) a reciprocal device disposed at least at one end of said torsion bar; (c) said reciprocal device comprising first and second members which are movable relative to each other, said first member being secured to the end of said torsion bar and said second member being adapted to be secured to a swing arm of a suspension system of a vehicle; and (d) said reciprocal device being normally positioned in a neutral position and movable under a resisting force and a limited stroke, said resisting force gradually increasing according to the displacement from said neutral position but said resisting force being substantially zero as said recirpocal device is returned to said neutral position.
Claim 2
Dependent Claim
146 words
A stabilizer assembly comprising: (a) a torsion bar having a straight central portion and bent end portions, said central portion being adapted to be twistably mounted on the frame of a vehicle; (b) a reciprocal device disposed at least at one end of said torsion bar; (c) said reciprocal device comprising first and second members which are movable relative to each other, said first member being secured to the end of said torsion bar and said second member being adapted to be secured to a swing arm of a suspension system of a vehicle; and (d) said reciprocal device being normally positioned in a neutral position and movable under a resisting force and a limited stroke, said resisting force gradually increasing according to the displacement from said neutral position but said resisting force being substantially zero as said recirpocal device is returned to said neutral position.
Claim 3
Dependent Claim
86 words
A stabilizer assembly according to claim 1, wherein: (a) said first member includes a cylinder member having an inner diameter being maximum at a middle portion and gradually decreasing towards opposite ends thereof; (b) said second member includes a piston member being positioned within said cylinder member and an outer diameter of said piston member is a minimum diameter at a middle portion and gradually increasing towards opposite ends thereof; and (c) an O-ring of rubber material interposed between said cylinder member and said piston member.
Claim 4
Dependent Claim
32 words
A stabilizer assembly according to claim 2, wherein said reciprocal device is operatively positioned such that said end of said torsion bar is disposed between said reciprocal device and said swing arm.
Claim 5
Dependent Claim
52 words
A stabilizer assembly according to claim 2, wherein said reciprocal device is operatively positioned between said end of said torsion bar and said swing arm; and further including a rod means connecting said piston member to said swing arm, said rod means being slidably and angularly movably positioned within said cylinder means.
Claim 6
Dependent Claim
150 words
A stabilizer assembly according to claim 1, wherein: (a) said reciprocal device includes first and second ring members; (b) each of said ring members including a top and a bottom inner ring and an outer ring interposed therebetween; (c) said inner rings having tapered outer peripheral surfaces and said outer ring being a split ring of spring steel having tapered top and bottom surfaces for sliding engagement with said tapered peripheral surfaces of said inner rings; (d) each of said ring assemblies being positioned on opposite sides of said end of said torsion bar wherein said first ring assembly is positioned innermost between said torsion bar and said swing bar; (e) a bolt assembly slidably passing through said ring members wherein one end of said bolt is secured to said swing arm and the other end of said bolt is secured to the outermost end of said second ring assembly.
References Cited (Backward Citations)
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Cited
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US3315952A
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US3796288A
Cited
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Cited
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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) | 1986-01-24 | 1986-07-26 | 1987-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-24 | 1990-07-26 | 1991-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-24 | 1994-07-26 | 1995-01-25 | $7700.00 | Window Closed / Lapsed |