US4369825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple wheel tire with reduced noise
Assignee: Individual
•
Filing: 1979-07-10
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Granted: 1983-01-25
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Expires: 1999-07-10
Abstract
Abstract The present invention discloses a vehicle tire, which radiates low external tire/road rolling noise and comprises a rim (1) to the periphery of which a multiplicity of in axial direction separated sub-tires (5) are attached, each of which has an outer diameter/sectional width ratio (2r/b), which is greater than 8. These individual sub-tires are, for further improved noise characteristics, entirely filled with soft rubber or a soft plastic material.
Inventors
- 👤 Nils-Ake Nilsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:16
CPC Classifications
B; B60; B60C; B60C19/00; B60C19/002; B60B; B60B11/00; B60B11/04; B60C3/00; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10036; Y10T152/10054; Y10T152/10279; Y10T152/10378; Y10T152/10387
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
99 words
A vehicle wheel having low rolling noise comprising: a rim located about an axis of said wheel; a plurality of tires mounted on said rim, each of said tires having an inner cavity and being axially separated from each other; each of said tires having an outer-diameter/sectional-width ratio (2r/b) of greater than 8 wherein 2r is the outer diameter of said tire and b is the cross-sectional width in the axial direction of each individual tire; and, each of said cavities being filled with a filler material having a hardness of less than 35° Shore A (DIN 53 505).
Claim 2
Dependent Claim
99 words
A vehicle wheel having low rolling noise comprising: a rim located about an axis of said wheel; a plurality of tires mounted on said rim, each of said tires having an inner cavity and being axially separated from each other; each of said tires having an outer-diameter/sectional-width ratio (2r/b) of greater than 8 wherein 2r is the outer diameter of said tire and b is the cross-sectional width in the axial direction of each individual tire; and, each of said cavities being filled with a filler material having a hardness of less than 35° Shore A (DIN 53 505).
Claim 3
Dependent Claim
11 words
The wheel of claim 1 wherein said filler material is rubber.
Claim 4
Dependent Claim
12 words
The wheel of claim 1 wherein said filler material is a plastic.
Claim 5
Dependent Claim
26 words
The wheel of claim 1 or 2 or 3 wherein each of said tires has a tread surface that is essentially plane when viewed in cross-section.
Claim 6
Dependent Claim
31 words
The wheel of claim 1, wherein each of said tires are mounted on a corresponding sub-rim member, and wherein each of said sub-rim members are in turn mounted on said rim.
Claim 7
Independent Claim
96 words
A method of reducing rolling noise on a vehicle including the steps of: providing said vehicle with wheels each having a plurality of tires mounted on a wheel rim member thereon and each tire having a cavity therein; structuring each of said tires so that the outer-diameter/sectional-width ratio (2r/b) is greater than 8 wherein 2r is the outer diameter of each said tire and b is the cross-sectional width thereof in the axial direction; and filling each of said cavities with a filler material having a hardness of less than 35° Shore A (DIN 53 505).
Claim 8
Independent Claim
96 words
A method of reducing rolling noise on a vehicle including the steps of: providing said vehicle with wheels each having a plurality of tires mounted on a wheel rim member thereon and each tire having a cavity therein; structuring each of said tires so that the outer-diameter/sectional-width ratio (2r/b) is greater than 8 wherein 2r is the outer diameter of each said tire and b is the cross-sectional width thereof in the axial direction; and filling each of said cavities with a filler material having a hardness of less than 35° Shore A (DIN 53 505).
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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 |