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US3860293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skate wheel
Assignee: Individual
•
Filing: 1973-09-17
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Granted: 1975-01-14
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Expires: 1993-09-17
Abstract
Abstract A skate wheel is disclosed having a rim or tire made of wood and a metallic hub wherein the outer races of suitable ball bearings are mounted. The metallic hub has a cylindrical outer surface with axially aligned grooves and edges formed at one end and circumferential grooves axially spaced and an external taper at the other end. Epoxy glue is applied onto the hub and into the bore of the tire and the hub is press fitted into the wooden tire. After the glue is set, the wheel assembly can be placed within a lathe and the wheel made almost perfectly round and balanced.
Inventors
- 👤 Robert J Labeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:31
CPC Classifications
F; F16; F16C; F16C13/00; F16C13/02; A; A63; A63C; A63C17/00; A63C17/22; A63C17/223; F16C2316/00; F16C2316/30
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
An assembly comprising: a metallic hub, and a nonmetallic tire surrounding said hub and fixed thereto; said hub having a cylindrical outer surface and a circular bore; said tire having a cylindrical outer surface and a cylindrical bore coaxially disposed; the shape of said bore in said hub being such that oppositely disposed shoulders are formed equally distant from the respective ends wherein the diameter of said bore is greater nearer the ends than at the center; said hub having two internal conical surfaces formed one at each end of said bore of said hub and said internal conical surfaces being axially aligned to allow machining said tire in a lathe thereby making the tire cylindrical and coaxial with the axis of rotation.
Claim 2
Dependent Claim
123 words
An assembly comprising: a metallic hub, and a nonmetallic tire surrounding said hub and fixed thereto; said hub having a cylindrical outer surface and a circular bore; said tire having a cylindrical outer surface and a cylindrical bore coaxially disposed; the shape of said bore in said hub being such that oppositely disposed shoulders are formed equally distant from the respective ends wherein the diameter of said bore is greater nearer the ends than at the center; said hub having two internal conical surfaces formed one at each end of said bore of said hub and said internal conical surfaces being axially aligned to allow machining said tire in a lathe thereby making the tire cylindrical and coaxial with the axis of rotation.
Claim 3
Dependent Claim
27 words
The assembly of claim 1 wherein: roller type bearings are disposed within said bore, one against each shoulder; and an axle is disposed passing through each bearing.
Claim 4
Dependent Claim
81 words
The assembly of claim 2 wherein: another metallic hub is disposed around said axle with another nonmetallic tire surrounding said other hub and fixed thereto; said other hub having an axially symmetrical cylindrical outer surface and an axially symmetrical bore; said other tire having a cylindrical outer surface and a cylindrical bore coaxially disposed; said bore in said other hub being shaped to adopt thrust bearing loads; and each of said hubs is disposed on a reSpective end of said axle.
Claim 5
Dependent Claim
82 words
An assembly comprising: a metallic hub, and a nonmetallic tire surrounding said hub and fixed thereto; said hub having a cylindrical outer surface and an axially symmetrical bore; said tire having a cylindrical outer surface and a cylindrical bore coaxially disposed; said bore in said hub being shaped to adopt thrust bearing loads; said hub having formed on its outer surface at least one circumferentially disposed groove; and a bonding means disposed within the cavity formed by said groove and said tire.
Claim 6
Dependent Claim
82 words
An assembly comprising: a metallic hub, and a nonmetallic tire surrounding said hub and fixed thereto; said hub having a cylindrical outer surface and an axially symmetrical bore; said tire having a cylindrical outer surface and a cylindrical bore coaxially disposed; said bore in said hub being shaped to adopt thrust bearing loads; said hub having formed on its outer surface at least one circumferentially disposed groove; and a bonding means disposed within the cavity formed by said groove and said tire.
Claim 7
Dependent Claim
52 words
The assembly of claim 4 wherein: said outer surface of said hub has also a rough portion at one end for preventing axial rotation between said tire and said hub, and an external taper formed on the other end of said hub to allow easy insertion of said hub into said tire.
Claim 8
Dependent Claim
22 words
The assembly of claim 5 wherein: said rough portion consists of axially aligned ridges extending above the outer surface of said hub.
References Cited (Backward Citations)
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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) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |