US5641365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pre-pressurized in-line skate wheel
Assignee: Hyper Corp
•
Filing: 1996-02-02
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Granted: 1997-06-24
•
Expires: 2016-02-02
Abstract
Abstract A pre-pressurized in-line skate wheel including a hard polyurethane hub having a drop center formed between radially projecting guide flanges formed with axially projecting windows as spaced equidistant thereabout in an annular array. A bladder device includes a plurality of pressurized hollow cross rods nested at their opposite ends in such windows and surmounting on their radially outward sides a pressurized annular tube arranged concentric with the drop center. A soft polyurethane wheel body is formed in such drop center and projects radially outwardly to encapsulate the annular tube and form an elliptical annular tread surface. The method of manufacturing the tire includes blow molding the cross rods and the annular tube and pressurizing them to the desired individual pressures so that the resultant tire will exhibit the combined benefits of polyurethane cushioning and shock absorption associated with compressible gases.
Inventors
- 👤 Tom Peterson
- 👤 Neal Piper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:31
CPC Classifications
B; B60; B60C; B60C5/00; B60C5/007; A; A63; A63C; A63C17/00; A63C17/22; A63C17/223; A63C17/24; B29; B29C; B29C70/00; B29C70/68; B29C70/74; B60C5/01; B60C5/02; B60C5/04; B29D; B29D30/00; B29D30/06; B29D30/08; B29D2030/084; B60C7/00; B60C2007/005; Y; Y10; Y10S; Y10S152/00; Y10S152/18; Y10T; Y10T152/00; Y10T152/10; Y10T152/10036; Y10T152/10117
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
130 words
An in-line shock absorbing pre-pressurized skate wheel comprising: a hard urethane hub formed with a drop center and radially projecting axially spaced apart flanges, said flanges being formed interiorly with a predetermined number of angularly spaced apart axial openings; a tube pressurized with compressible gas disposed concentrically about said hub; a predetermined number of compressible bladder rods interposed between said tube and said hub and formed with respective oppositely disposed axial ends received in the respective said openings; respective webs connecting the said bladder rods to said tube; and a relatively soft urethane tire body formed between said flanges, surrounding said tube and at least a portion of the respective bladder rods, said tire body projecting partially outwardly from said flanges to be further formed with an arcuate tread surface.
Claim 2
Dependent Claim
130 words
An in-line shock absorbing pre-pressurized skate wheel comprising: a hard urethane hub formed with a drop center and radially projecting axially spaced apart flanges, said flanges being formed interiorly with a predetermined number of angularly spaced apart axial openings; a tube pressurized with compressible gas disposed concentrically about said hub; a predetermined number of compressible bladder rods interposed between said tube and said hub and formed with respective oppositely disposed axial ends received in the respective said openings; respective webs connecting the said bladder rods to said tube; and a relatively soft urethane tire body formed between said flanges, surrounding said tube and at least a portion of the respective bladder rods, said tire body projecting partially outwardly from said flanges to be further formed with an arcuate tread surface.
Claim 3
Dependent Claim
21 words
An in-line skate wheel as set forth in claim 1 wherein: said openings project axially through respective flanges to form windows.
Claim 4
Dependent Claim
32 words
An in-line skate wheel as set forth in claim 1 wherein: said bladder rods are formed at their respective opposite axial extremities with reduced in diameter projections projecting into the respective openings.
Claim 5
Dependent Claim
34 words
An in-line Skate wheel as set forth in claim 3 wherein: said bladder rods are formed with respective axially outwardly facing sealing shoulders sealed against the axially inner edges of the respective said openings.
Claim 6
Dependent Claim
23 words
An in-line skate wheel as set forth in claim 1 wherein: said tube and bladder rods are formed with respective discrete pressure chambers.
Claim 7
Dependent Claim
19 words
An in-line skate wheel as set forth in claim 1 wherein: said tube is formed with a continuous wall.
Claim 8
Dependent Claim
20 words
An in-line skate wheel as set forth in claim 1 wherein: said bladder rods are formed with respective continuous walls.
Claim 9
Dependent Claim
42 words
An in-line skate wheel as set forth in claim 1 wherein: said hub is formed with an annular wall configured with a radially inwardly recessed annular groove; and said tire body is formed with an annular ring imbedded in said annular groove.
Claim 10
Dependent Claim
35 words
An in-line skate wheel as set forth in claim 2 wherein: the respective bladder rods are formed at their axially opposite ends with respective bladder end walls viewable from the axial exterior of said windows.
Claim 11
Dependent Claim
42 words
An in-line skate wheel as set forth in claim 1 wherein: said hub is formed with a radially inwardly disposed drop center wall; and said bladder rods are configured to nest on their respective radially inner sides on said drop center wall.
Claim 12
Dependent Claim
36 words
An in-line skate wheel as set forth in claim 1 wherein: said tire body is bonded to the interior surfaces of the respective said flanges and to the peripheral surfaces of said tube and bladder rods.
Claim 13
Dependent Claim
19 words
An in-line skate wheel as set forth in claim 1 wherein: said compressible gas pressurizing said tube is air.
Claim 14
Dependent Claim
28 words
An in-line skate wheel as set forth in claim 1 wherein: said bladder rods are formed with discrete hollow chambers and include a compressible gas in said chambers.
Claim 15
Dependent Claim
34 words
An in-line skate wheel as set forth in claim 1 wherein: said tire body is formed with a tread wall radially distal of said tube formed with a thickness of at least 0.7 cm.
Claim 16
Dependent Claim
27 words
An in-line skate wheel as set forth in claim 1 wherein: said tube includes a plurality of wear bumps projecting from the exterior of the wall thereof.
Claim 17
Dependent Claim
19 words
An in-line skate wheel as set forth in claim 1 wherein: said tube is pressurized to substantially 15 psi.
Claim 18
Dependent Claim
20 words
An in-line skate wheel as set forth in claim 1 wherein: said tube is pressurized to at least 10 psi.
Claim 19
Dependent Claim
173 words
An in-line shock absorbing skate wheel comprising: a hard urethane hub formed with a drop center having a radially inner annular wall and radially projecting axially spaced apart flanges; a soft urethane bladder device including a plurality of radially projecting spacer rods disposed equidistant about said annular wall and an annular tube carried at the radially outer ends of the respective said rods; a soft urethane tire body formed with a radially inwardly projecting rib received in said drop center and bonded to said flanges, said tire body encapsulating said tube and being bonded thereto and formed radially distally of said tube with an annular wall defining a polyurethane cushion configured with an elliptically shaped annular tread surface for cushioning shock loads applied radially inwardly to said tire; and a compressible gas charge in said tube whereby said annular cushion and pressurized tube will cooperate to withstand loads applied to said tread wall during operation at high speed over uneven terrain to cushion and absorb at least some of the consequent shock loads.
Claim 20
Dependent Claim
173 words
An in-line shock absorbing skate wheel comprising: a hard urethane hub formed with a drop center having a radially inner annular wall and radially projecting axially spaced apart flanges; a soft urethane bladder device including a plurality of radially projecting spacer rods disposed equidistant about said annular wall and an annular tube carried at the radially outer ends of the respective said rods; a soft urethane tire body formed with a radially inwardly projecting rib received in said drop center and bonded to said flanges, said tire body encapsulating said tube and being bonded thereto and formed radially distally of said tube with an annular wall defining a polyurethane cushion configured with an elliptically shaped annular tread surface for cushioning shock loads applied radially inwardly to said tire; and a compressible gas charge in said tube whereby said annular cushion and pressurized tube will cooperate to withstand loads applied to said tread wall during operation at high speed over uneven terrain to cushion and absorb at least some of the consequent shock loads.
References Cited (Backward Citations)
US988533A
Cited
US1244209A
Cited
US2570349A
Cited
US2677906A
Cited
US2871061A
Cited
US3121430A
Cited
US3389922A
Cited
US3469576A
Cited
US3937780A
Cited
US3823293A
Cited
US3877710A
Cited
US4040670A
Cited
US4031937A
Cited
US4183156A
Cited
US4208073A
Cited
US4219945A
Cited
US4219945B1
Cited
US4305212A
Cited
US4445283A
Cited
US4361969A
Cited
US4379104A
Cited
US4387071A
Cited
US5158767A
Cited
US5048848A
Cited
US5028058A
Cited
US4909523A
Cited
US5297349A
Cited
US5046267A
Cited
US5253435A
Cited
US5257470A
Cited
US5416988A
Cited
US5256350A
Cited
US5129709A
Cited
US5343639A
Cited
US5353523A
Cited
US5406719A
Cited
US5468140A
Cited
US5351710A
Cited
US5441286A
Cited
US5362075A
Cited
US5346231A
Cited
US5425184A
Cited
US5320418A
Cited
US5312844A
Cited
US5310250A
Cited
US5353459A
Cited
US5406661A
Cited
US5401037A
Cited
US5524913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-06-23 | 2000-12-23 | 2001-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-06-23 | 2004-12-23 | 2005-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-06-23 | 2008-12-23 | 2009-06-24 | $7700.00 | Window Closed / Lapsed |