Patent US5853225A successfully refreshed from Google Patents.
US5853225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller skate wheel assembly
Assignee: Individual
•
Filing: 1995-05-05
•
Granted: 1998-12-29
•
Expires: 2015-05-05
Abstract
Abstract A skate wheel includes a gas-filled tire tube that is secured to the tire rim of a bearing frame by molding a cover layer around the tube and frame to form an integrated wheel assembly which provides buffering and shock-absorbing functions during skating.
Inventors
- 👤 Ing Chung Huang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:55
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/22; B; B60; B60C; B60C5/00; B60C5/001
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
117 words
A skate wheel assembly comprising: a) an annular-shaped bearing frame including a tire rim having a substantially continuous circumferential support surface for supporting a tire tube thereon, a bearing seat defining a central passage therethrough for receiving a bearing and wheel shaft assembly, and a bridge portion connecting the tire rim and bearing seat; b) an inflatable tire tube mounted on the circumferential support surface of the tire rim; and c) a cover layer molded around at least portions of the tire tube, the tire rim, the bridge portion and the bearing seat for securing the tire tube to the circumferential support surface of the tire rim and forming an integrated wheel assembly with the bearing frame.
Claim 2
Dependent Claim
117 words
A skate wheel assembly comprising: a) an annular-shaped bearing frame including a tire rim having a substantially continuous circumferential support surface for supporting a tire tube thereon, a bearing seat defining a central passage therethrough for receiving a bearing and wheel shaft assembly, and a bridge portion connecting the tire rim and bearing seat; b) an inflatable tire tube mounted on the circumferential support surface of the tire rim; and c) a cover layer molded around at least portions of the tire tube, the tire rim, the bridge portion and the bearing seat for securing the tire tube to the circumferential support surface of the tire rim and forming an integrated wheel assembly with the bearing frame.
Claim 3
Dependent Claim
28 words
The skate wheel assembly of claim 1 wherein the cover layer is molded substantially completely around the tire tube for defining an outer tire of the wheel assembly.
Claim 4
Dependent Claim
30 words
The skate wheel assembly of claim 1 wherein at least a portion of the cover layer includes a filler material embedded therein for imparting structural strength to the wheel assembly.
Claim 5
Dependent Claim
14 words
The skate wheel assembly of claim 3 wherein the filler material includes cotton fibers.
Claim 6
Dependent Claim
14 words
The skate wheel assembly of claim 3 wherein the filler material includes linen fibers.
Claim 7
Dependent Claim
14 words
The skate wheel assembly of claim 3 herein the filler material includes steel wires.
Claim 8
Dependent Claim
31 words
The skate wheel assembly of claim 1 further including spaced holes formed in the bridge portion for receiving the molded cover layer therethrough and imparting structural strength to the wheel assembly.
Claim 9
Dependent Claim
20 words
The skate wheel assembly of claim 1 wherein the tire tube is filled with at least a nonair molecular gas.
Claim 10
Dependent Claim
22 words
The skate wheel assembly of claim 1 wherein the tire tube includes a check valve for introducing pressurized gas into the tube.
Claim 11
Dependent Claim
15 words
The skate wheel assembly of claim 9 wherein the valve is made of resilient material.
Claim 12
Dependent Claim
30 words
The skate wheel assembly of claim 9 further including a valve seat provided on the tire tube and the check valve is a one-way valve secured to the valve seat.
Claim 13
Dependent Claim
18 words
The skate wheel assembly of claim 9 further including means for balancing the rotation of the wheel assembly.
Claim 14
Dependent Claim
32 words
The skate wheel assembly of claim 12 wherein the balancing means includes a plurality of spaced recesses on opposite sides of the wheel assembly and a filler material disposed within the recesses.
Claim 15
Dependent Claim
18 words
The skate wheel assembly of claim 1 wherein the tire tube includes a plurality of spaced annular grooves.
Claim 16
Dependent Claim
25 words
The skate wheel assembly of claim 14 further including a filler material disposed within the annular grooves to enhance the structual strength of the tube.
Claim 17
Dependent Claim
29 words
The skate wheel assembly of claim 1 wherein the bridge portion is defined by a plurality of spokes extending radially outwardly from the bearing seat to the tire rim.
Claim 18
Dependent Claim
32 words
The skate wheel assembly of claim 8 wherein the nonair molecular gas has a sufficiently low permeability for diffusion to retain the gas within the tube for at least approximately five years.
Claim 19
Dependent Claim
33 words
The skate wheel assembly of claim 8 wherein the molecular gas is selected from the group consisting of sulfur hexafluoride, perfluoropropane, hexafluoroethane, octafluorocyclobutane, perfluorocyclobutane, hexafluoropropylene, bromotrifluoromethane, monochlorotrifluoromethane, tetrafluoromethane, monochloropentafluoroethane, 1,2-dichlorotetrafluoroethane, 1,2,2-trichloro-1,2,2-trifluoroethane,chlorotrifluoroethylene,and mixtures thereof.
Claim 20
Dependent Claim
25 words
The skate wheel assembly of claim 1 wherein the inflatable tire tube is prepressurized with a gas prior to the molding of the cover layer.
Claim 21
Dependent Claim
15 words
The skate wheel assembly of claim 19 wherein the gas is a nonair molecular gas.
References Cited (Backward Citations)
US2563466A
Cited
US1147600A
Cited
US1217761A
Cited
US1520439A
Cited
US2087365A
Cited
US2434501A
Cited
US2717808A
Cited
US3968295A
Cited
US4124117A
Cited
US4340626A
Cited
US4513803A
Cited
US4447093A
Cited
US4514243A
Cited
US4747436A
Cited
US4867792A
Cited
US4877071A
Cited
US4909523A
Cited
US5048848A
Cited
US4969692A
Cited
US5351974A
Cited
US5312165A
Cited
US5346231A
Cited
US5320418A
Cited
US5527100A
Cited
US5503466A
Cited
US5478140A
Cited
WO1996018513A1
Cited
US5630891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-12-28 | 2002-06-29 | 2002-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-12-28 | 2006-06-29 | 2006-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-12-28 | 2010-06-29 | 2010-12-29 | $7700.00 | Window Closed / Lapsed |