US5042544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deformable nonpneumatic tire with recesses extending crosswise over the entire axial width of the tire
Assignee: Compagnie Generale des Etablissements Michelin SCA
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Filing: 1990-09-14
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Granted: 1991-08-27
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Expires: 2010-09-14
Abstract
Abstract A deformable nonpneumatic tire includes a radially inner, substantially annular, base which may be connected to a rigid element such as a wheel, a radially outer, substantially annular, cap to which a tread having a pattern may be mounted, and a substantially annular deformable structure connected between the base and the cap. The deformable structure includes a plurality of intrinsically dissymmetrical patterns formed by elongate slender elements of an elastically deformable material when seen in section perpendicular to the axial direction of the tire. The slender elements are arranged to define recesses extending crosswise over the entire axial width of the tire. The slender elements are inclined with respect to the radial direction of the tire and form zig-zags at two angles of opposite signs with respect to the radial direction of the tire, such that the orientation of the slender elements changes from one to the other of the angles at least one time between the radially inner and outer ends of the deformable structure.
Inventors
- 👤 Benoit Dehasse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:49
CPC Classifications
B; B60; B60C; B60C7/00; B60C7/10; B60C7/107; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10279; Y10T152/10288; Y10T152/10297; Y10T152/10306
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
149 words
A deformable nonpneumatic tire comprising: a radially inner, substantially annular, base; a radially outer, substantially annular, cap; and a substantially annular, deformable structure connected between said base and said cap, said deformable structure comprising a plurality of intrinsically dissymmetrical patterns formed by elongate slender elements of an elastically deformable material when seen in a section perpendicular to the axial direction of the tire, said slender elements being arranged to define recesses extending crosswise over the entire axial width of the tire, wherein said slender elements of a respective pattern are inclined with respect to the radial direction of the tire at two angles of opposite signs with respect to the radial direction of the tire, such that the orientation of each of said slender elements changes from one to the other of said angles at least one time between the radially inner and outer ends of said deformable structure.
Claim 2
Dependent Claim
149 words
A deformable nonpneumatic tire comprising: a radially inner, substantially annular, base; a radially outer, substantially annular, cap; and a substantially annular, deformable structure connected between said base and said cap, said deformable structure comprising a plurality of intrinsically dissymmetrical patterns formed by elongate slender elements of an elastically deformable material when seen in a section perpendicular to the axial direction of the tire, said slender elements being arranged to define recesses extending crosswise over the entire axial width of the tire, wherein said slender elements of a respective pattern are inclined with respect to the radial direction of the tire at two angles of opposite signs with respect to the radial direction of the tire, such that the orientation of each of said slender elements changes from one to the other of said angles at least one time between the radially inner and outer ends of said deformable structure.
Claim 3
Dependent Claim
17 words
The tire of claim 1 wherein said patterns are repetitive in the circumferential direction of the tire.
Claim 4
Dependent Claim
14 words
The tire of claim 1 wherein said base comprises solid parts defining triangular recesses.
Claim 5
Dependent Claim
14 words
The tire of claim 1 wherein said cap comprises solid parts defining triangular recesses.
Claim 6
Dependent Claim
12 words
The tire of claim 2 wherein said recesses are of quadrangular shape.
Claim 7
Dependent Claim
10 words
The tire of claim 5 wherein said recesses comprise parallelograms.
Claim 8
Dependent Claim
10 words
The tire of claim 5 wherein said recesses are rectangular.
Claim 9
Dependent Claim
10 words
The tire of claim 2 wherein said recesses comprise chevrons.
Claim 10
Dependent Claim
23 words
The tire of claim 5, wherein for each of said patterns any adjacent ones of said recesses are circumferentially oriented in opposite directions.
Claim 11
Dependent Claim
79 words
The tire of claim 2 wherein said patterns are comprised by two types of said slender elements, a first type of said slender elements having one end fixed to said base and another end fixed to a mid-portion of a second type of said slender elements, said second type of said slender elements having one end fixed to a mid-portion of a first type of said slender elements in an adjacent pattern and another end fixed to said cap.
Claim 12
Dependent Claim
31 words
The tire of claim 10 wherein said ends of said slender elements which are respectively fixed to said base and said cap are thinner than the remainder of said slender elements.
Claim 13
Dependent Claim
20 words
The tire of claim 10 wherein said second type of slender elements have a reinforcement at said another end thereof.
Claim 14
Dependent Claim
18 words
The tire of claim 2 including circumferentially extending auxiliary elements connected between said slender elements of adjacent patterns.
Claim 15
Dependent Claim
18 words
The tire of claim 1 wherein the absolute value of said two angles is between 20° and 70°.
Claim 16
Dependent Claim
12 words
The tire of claim 1 including a tread mounted to said cap.
Claim 17
Dependent Claim
12 words
The tire of claim 3 including a tread mounted to said cap.
Claim 18
Dependent Claim
15 words
The tire of claim 16 including holes extending from said tread to said triangular recesses.
References Cited (Backward Citations)
US2620844A
Cited
US2742941A
Cited
FR1278131A
Cited
FR1408477A
Cited
FR2350216A1
Cited
FR2357384A1
Cited
EP0297628A2
Cited
US4945962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-08-26 | 1995-02-25 | 1995-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-26 | 1999-02-25 | 1999-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-26 | 2003-02-25 | 2003-08-27 | $7700.00 | Window Closed / Lapsed |