US5033765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ski having improved shock absorption and vibration resistance
Assignee: Salomon SAS
•
Filing: 1988-05-16
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Granted: 1991-07-23
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Expires: 2008-05-16
Abstract
Abstract A ski comprises an elongated body having opposed lateral surfaces and opposed upper and lower walls, a longitudinal core having upper and lower walls extending along the length of the body between front and rear ends of the ski, mechanical resistance elements, internal longitudinal shock absorption elements made of a viscoelastic material, and filling elements connecting the resistance elements to the other elements. At least one of the internal shock absorption elements is a strip of viscoelastic material which is substantially continuous over the entire length of the body of the ski. The width of the strip is limited by the lateral surfaces of the ski, and the thickness of the strip is limited by a wall of the core and a wall of the body. The strip has a thickness along the length of the body which is a nonconstant function of the length of the body conferring on the ski mechanical shock absorption properties which vary along the length of the ski.
Inventors
- 👤 Yves Cagneux
- 👤 Denis Gasquet
- 👤 Maurice Legrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:48
CPC Classifications
A; A63; A63C; A63C5/00; A63C5/12; A63C5/126; A63C5/06; A63C5/075; A63C5/122
Claims Analysis
Total Claims: 61
Claim 1
Independent Claim
185 words
A ski for use on snow comprising a body whose width is established by opposed lateral surfaces, and whose thickness is established by opposed upper and lower walls, a longitudinal core extending along the length of the body between front and rear ends of the ski and whose thickness is established by upper and lower walls, mechanical resistance elements, internal longitudinal shock absorption elements made of a viscoelastic material, and filling elements connecting the resistance elements to the other elements, wherein: (a) at least one of said internal shock absorption elements is a strip of viscoelastic material which is substantially continuous over the entire length of the body of the ski; (b) the width of said strip is limited by the lateral surfaces of the ski and the thickness of said strip is limited by a wall of the core and a wall of the body; and (c) the thickness of said strip along the length of the body is a nonconstant function of the length of the body conferring to the ski mechanical shock absorption properties which vary along the length of the ski.
Claim 2
Dependent Claim
185 words
A ski for use on snow comprising a body whose width is established by opposed lateral surfaces, and whose thickness is established by opposed upper and lower walls, a longitudinal core extending along the length of the body between front and rear ends of the ski and whose thickness is established by upper and lower walls, mechanical resistance elements, internal longitudinal shock absorption elements made of a viscoelastic material, and filling elements connecting the resistance elements to the other elements, wherein: (a) at least one of said internal shock absorption elements is a strip of viscoelastic material which is substantially continuous over the entire length of the body of the ski; (b) the width of said strip is limited by the lateral surfaces of the ski and the thickness of said strip is limited by a wall of the core and a wall of the body; and (c) the thickness of said strip along the length of the body is a nonconstant function of the length of the body conferring to the ski mechanical shock absorption properties which vary along the length of the ski.
Claim 3
Dependent Claim
13 words
A ski according to claim 1, wherein the filling elements are viscoelastic material.
Claim 4
Dependent Claim
30 words
A ski according to claim 1, wherein the shock absorption elements comprise an upper strip positioned between the upper wall of said core and the upper wall of the body.
Claim 5
Dependent Claim
30 words
A ski according to claim 1, wherein the shock absorption elements comprise a lower strip positioned between the lower wall of said core and the lower wall of the ski.
Claim 6
Dependent Claim
49 words
A ski according to claim 1, wherein the shock absorption elements comprise an upper strip positioned between the upper wall of said core and the upper wall of the body and a lower strip positioned between the lower wall of said core and the lower wall of the body.
Claim 7
Dependent Claim
25 words
A ski according to claim 5, wherein the shock absorption elements comprise two lateral strips of viscoelastic material that link said upper and lower strips.
Claim 8
Dependent Claim
28 words
A ski according to claim 1, wherein the core has at least one zone of reduced thickness defined by providing a depression in a wall of the core.
Claim 9
Dependent Claim
21 words
A ski according to claim 7, wherein the core has a depression on its upper wall filled with said viscoelastic material.
Claim 10
Dependent Claim
21 words
A ski according to claim 7, wherein the core has a depression on its lower wall filled with said viscoelastic material.
Claim 11
Dependent Claim
23 words
A ski according to claim 7, wherein the core has at least one depression on its upper wall filled with said viscoelastic material.
Claim 12
Dependent Claim
18 words
A ski according to claim 8, wherein the depression is adjacent one of the ends of the ski.
Claim 13
Dependent Claim
17 words
A ski according to claim 8, wherein the depression is adjacent the front end of the ski.
Claim 14
Dependent Claim
17 words
A ski according to claim 8, wherein the depression is adjacent the rear end of the ski.
Claim 15
Dependent Claim
20 words
A ski according to claim 8, wherein the depressions are provided adjacent the front and rear ends of the ski.
Claim 16
Dependent Claim
16 words
A ski according to claim 8, wherein the depression is adjacent the middle of the ski.
Claim 17
Dependent Claim
18 words
A ski according to claim 9, wherein the depression is adjacent one of the ends of the ski.
Claim 18
Dependent Claim
17 words
A ski according to claim 9, wherein the depression is adjacent the front end of the ski.
Claim 19
Dependent Claim
17 words
A ski according to claim 9, wherein the depression is adjacent the rear end of the ski.
Claim 20
Dependent Claim
20 words
A ski according to claim 9, wherein the depressions are provided adjacent the front and rear ends of the ski.
Claim 21
Dependent Claim
16 words
A ski according to claim 9, wherein the depression is adjacent the middle of the ski.
Claim 22
Dependent Claim
18 words
A ski according to claim 10, wherein the depression is adjacent one of the ends of the ski.
Claim 23
Dependent Claim
17 words
A ski according to claim 10, wherein the depression is adjacent the front end of the ski.
Claim 24
Dependent Claim
17 words
A ski according to claim 10, wherein the depression is adjacent the rear end of the ski.
Claim 25
Dependent Claim
20 words
A ski according to claim 10, wherein the depressions are provided adjacent the front and rear ends of the ski.
Claim 26
Dependent Claim
16 words
A ski according to claim 10, wherein the depression is adjacent the middle of the ski.
Claim 27
Dependent Claim
159 words
A ski comprising: (a) a longitudinally extending body defining a longitudinal median plane, and having a sole substantially perpendicular to the plane and adapted to slidably engage a surface, said sole having a central zone lying between front and rear contact lines; (b) said body comprising: (1) a core having opposed top and bottom walls, and opposed lateral side walls, said core extending substantially the length of the body; (2) a shell have a top wall facing the top wall of the core, a bottom wall facing the bottom wall of the core and lateral surfaces spaced from respective lateral walls of the core; and (3) a first strip of viscoelastic material interposed between one wall of said shell and the facing wall of said core for forming shock absorption means; (c) the area and configuration of the cross-section of said first strip being a non-constant function of the length of said body at least between said contact lines.
Claim 28
Dependent Claim
159 words
A ski comprising: (a) a longitudinally extending body defining a longitudinal median plane, and having a sole substantially perpendicular to the plane and adapted to slidably engage a surface, said sole having a central zone lying between front and rear contact lines; (b) said body comprising: (1) a core having opposed top and bottom walls, and opposed lateral side walls, said core extending substantially the length of the body; (2) a shell have a top wall facing the top wall of the core, a bottom wall facing the bottom wall of the core and lateral surfaces spaced from respective lateral walls of the core; and (3) a first strip of viscoelastic material interposed between one wall of said shell and the facing wall of said core for forming shock absorption means; (c) the area and configuration of the cross-section of said first strip being a non-constant function of the length of said body at least between said contact lines.
Claim 29
Dependent Claim
185 words
A ski comprising: (a) a longitudinal extending body defining a longitudinal median plane, and having a sole substantially perpendicular to the plane and adapted to slidably engage a surface, said sole having a central zone line between front and rear contact lines; (b) said body comprising: (1) a core having a opposed top and bottom walls, and opposed lateral side walls, said core extending substantially the length of the body; (2) a shell having a top wall facing the top wall of the core, a bottom wall facing the bottom wall of the core, and lateral surfaces spaced from respective lateral side walls of the core; and (3) a first strip of viscoelastic material interposed between one wall of said shell and facing wall of said core for forming shock absorption means; (c) the area and configuration of the cross section of said first strip being a non-constant function of the length of said body, at least between said contact lines; (d) wherein the width of said core measured between the opposed lateral walls thereof is substantially constant in the longitudinal direction of said core.
Claim 30
Dependent Claim
185 words
A ski comprising: (a) a longitudinal extending body defining a longitudinal median plane, and having a sole substantially perpendicular to the plane and adapted to slidably engage a surface, said sole having a central zone line between front and rear contact lines; (b) said body comprising: (1) a core having a opposed top and bottom walls, and opposed lateral side walls, said core extending substantially the length of the body; (2) a shell having a top wall facing the top wall of the core, a bottom wall facing the bottom wall of the core, and lateral surfaces spaced from respective lateral side walls of the core; and (3) a first strip of viscoelastic material interposed between one wall of said shell and facing wall of said core for forming shock absorption means; (c) the area and configuration of the cross section of said first strip being a non-constant function of the length of said body, at least between said contact lines; (d) wherein the width of said core measured between the opposed lateral walls thereof is substantially constant in the longitudinal direction of said core.
Claim 31
Dependent Claim
24 words
A ski according to claim 26 wherein the thickness of said first strip longitudinally as a non-constant function of distance in the longitudinal direction.
Claim 32
Dependent Claim
30 words
A ski according to claim 26 including a second strip interposed between the bottom wall of said shell and the bottom wall of said core for forming shock absorption means.
Claim 33
Dependent Claim
21 words
A ski according to claim 29 wherein said first and second strips are substantially continuous over the length of said body.
Claim 34
Dependent Claim
36 words
A ski according to claim 29 wherein the thickness of said core measured between its upper and lower walls is greater in the central zone of the ski than adjacent the front and rear contact lines.
Claim 35
Dependent Claim
35 words
A ski according to claim 29 wherein the thickness of said core measured between its upper and lower walls is reduced adjacent one of said contact lines relative to the thickness in said central zone.
Claim 36
Dependent Claim
22 words
A ski according to claim 32 wherein the thickness of said core is reduced in the vicinity of said front contact line.
Claim 37
Dependent Claim
22 words
A ski according to claim 32 wherein the thickness of said core is reduced in the vicinity of said rear contact line.
Claim 38
Dependent Claim
24 words
A ski according to claim 32 wherein the thickness of said core is reduced by proving a depression in a wall of the core.
Claim 39
Dependent Claim
16 words
A ski according to claim 31 wherein the transition in thickness of said core is discontinuous.
Claim 40
Dependent Claim
16 words
A ski according to claim 31 wherein the transition in thickness of said core is continuous.
Claim 41
Dependent Claim
28 words
A ski according to claim 29 wherein the thickness of said core is reduced adjacent said central zone relative to the width adjacent one of said contact lines.
Claim 42
Dependent Claim
26 words
A ski according to claim 38 wherein the core is provided with a depression in the top wall thereof in the central zone of the core.
Claim 43
Dependent Claim
26 words
A ski according to claim 38 wherein the core is provided with a depression in the bottom wall thereof in the central zone of the core.
Claim 44
Dependent Claim
33 words
A ski according to claim 1 including a longitudinal strip of viscoelastic material interposed between the bottom wall of said core and the bottom wall of said shell for forming shock absorption means.
Claim 45
Dependent Claim
19 words
A ski according to claim 41 wherein said longitudinal strip is substantially continuous over the length of said body.
Claim 46
Dependent Claim
15 words
A ski according to claim 35 wherein said core is symmetrical about said median plane.
Claim 47
Dependent Claim
15 words
A ski according to claim 35 wherein said core is asymmetrical about said median plane.
Claim 48
Dependent Claim
20 words
A ski according to claim 26 wherein said shell includes a reinforcement layer that resists mechanical strain on the ski.
Claim 49
Dependent Claim
12 words
A ski according to claim 45 wherein said reinforcement layer is metallic.
Claim 50
Dependent Claim
28 words
A ski according to claim 26 wherein said top wall and said lateral surfaces of said shell include a reinforcement layer that resists mechanical strain on the ski.
Claim 51
Dependent Claim
14 words
A ski according to claim 26 wherein the sole of the ski is cambered.
Claim 52
Dependent Claim
22 words
A ski according to claim 26 wherein the width of said core in a direction perpendicular to said median plane is uniform.
Claim 53
Dependent Claim
27 words
A ski according to claim 26 wherein the width of said ski measured between the lateral surfaces of the shell is substantially constant between said contact lines.
Claim 54
Dependent Claim
20 words
A ski according to claim 26 wherein said lateral surfaces of said shell are inclined relative to said median plane.
Claim 55
Dependent Claim
29 words
A ski according to claim 27, wherein said first strip of viscoelastic material is interposed between the top wall of the shell and the top wall of the core.
Claim 56
Dependent Claim
27 words
A ski according to claim 52, wherein the core has at least one zone of reduced thickness defined by a depression in a wall of the core.
Claim 57
Dependent Claim
17 words
A ski according to claim 53, wherein said depression is in the top wall of the core.
Claim 58
Dependent Claim
18 words
A ski according to claim 54, wherein said depression is adjacent one of the ends of the ski.
Claim 59
Dependent Claim
17 words
A ski according to claim 55, wherein the depression is adjacent the front end of the ski.
Claim 60
Dependent Claim
17 words
A ski according to claim 55, wherein the depression is adjacent the rear end of the ski.
Claim 61
Dependent Claim
25 words
A ski according to claim 55, wherein a depression is formed in the top of the ski at each end thereof adjacent the contact lines.
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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) | 1994-07-22 | 1995-01-21 | 1995-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-22 | 1999-01-21 | 1999-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-22 | 2003-01-21 | 2003-07-23 | $7700.00 | Window Closed / Lapsed |