US3666322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded plastic wheel structure
Assignee: First National Bank of Minneapolis
•
Filing: 1970-05-06
•
Granted: 1972-05-30
•
Expires: 1990-05-06
Abstract
Abstract Molded wheel structure having a relatively hard rigid body and a relatively softer resilient annular member, the body including a tubular hub and a pair of axially spaced annular disk portions projecting radially from the hub and having smooth generally flat axially outer surfaces, the annular member including a rim radially outwardly of the disk portions and wall means between the disk portions.
Inventors
- 👤 Roger R Pickron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:45
CPC Classifications
F; F16; F16C; F16C13/00; F16C13/006; B; B62; B62D; B62D55/00; B62D55/08; B62D55/096; B62D55/0966; Y; Y10; Y10S; Y10S474/00; Y10S474/901
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
135 words
A wheel comprising: a. a molded shell-like body including, a tubular hub portion, a pair of axially spaced annular disk portions projecting radially outwardly from the hub portion, said disk portions having smooth substantially flat axially outer surfaces, and a plurality of circumferentially spaced reinforcing ribs integrally formed with said hub and disk portions and connecting said disk portions, said ribs extending radially from said hub portion toward the outer periphery of said disk portions; b. and an annular member secured to said body and including radially inner wall means disposed between said disk portions, and an annular rim portion disposed radially outwardly of said disk portions, said wall means extending radially inwardly from said rim portion to said hub portion whereby to transfer radial loads from the rim portion directly to said hub portion.
Claim 2
Dependent Claim
135 words
A wheel comprising: a. a molded shell-like body including, a tubular hub portion, a pair of axially spaced annular disk portions projecting radially outwardly from the hub portion, said disk portions having smooth substantially flat axially outer surfaces, and a plurality of circumferentially spaced reinforcing ribs integrally formed with said hub and disk portions and connecting said disk portions, said ribs extending radially from said hub portion toward the outer periphery of said disk portions; b. and an annular member secured to said body and including radially inner wall means disposed between said disk portions, and an annular rim portion disposed radially outwardly of said disk portions, said wall means extending radially inwardly from said rim portion to said hub portion whereby to transfer radial loads from the rim portion directly to said hub portion.
Claim 3
Dependent Claim
48 words
The wheel accOrding to claim 1 in which said wall means comprises a plurality of generally segmentally shaped wall portions projecting radially inwardly from said rim portion to said hub portion between said ribs, said wall portions being adhered to said disk portions, hub portion and said ribs.
Claim 4
Dependent Claim
52 words
The wheel according to claim 2 in which said body includes a pair of annular flanges each projecting generally axially outwardly of a different one of said disk portions at the radially outer periphery thereof, said rim portion defining a pair of generally radially inwardly facing circumferential shoulders adhered to said flanges.
Claim 5
Dependent Claim
33 words
The wheel according to claim 2 in which said body and annular member are molded from thermo-plastic resins, said body being relatively hard and rigid, said annular member being relatively softer and resilient.
Claim 6
Dependent Claim
87 words
The wheel according to claim 1 in which said disk portions each have a plurality of circumferentially spaced openings extending in a direction axially therethrough, said openings having enlarged axially outer ends, said wall means including a plurality of transverse bosses each disposed in a different one of said openings and each having an enlarged axially outer end filling the enlarged portion of its respective opening, said axially outer end of each of said bosses being coplanar with said outer surface of its respective annular disk portion.
Claim 7
Dependent Claim
67 words
The wheel according to claim 3 in which said disk portions each have a plurality of circumferentially spaced openings extending in a direction axially therethrough, said openings having enlarged axially outer ends, said wall portions including a plurality of transverse bosses each disposed in a different one of said openings and each having an enlarged axially outer end portion fitting the enlarged portion of its respective opening.
References Cited (Backward Citations)
US1288949A
Cited
US2448248A
Cited
GB647141A
Cited
US2768862A
Cited
US3158404A
Cited
US3309150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |