Patent US3712362A successfully refreshed from Google Patents.
US3712362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A pneumatic tire without bead reinforcement rings
Assignee: Individual
•
Filing: 1970-10-01
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Granted: 1973-01-23
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Expires: 1990-10-01
Abstract
Abstract A molded tire and method for producing such a tire. The tire has a generally conventional horseshoe shaped cross section including a tread supporting wall bounded by shoulders from each of which a side wall extends radially inwardly to terminate in a bead foot that requires no reinforcement to impart the hoop strength necessary to retain the tire on a rim. The required hoop strength is imparted by a substantially inextensible belt that is encased within or around the tread supporting wall portion. Inasmuch as the beads need not be reinforced in the customary sense they may each well present a heel for engagement by the opposed hook flanges on a clincher type rim. A tire embodying the foregoing construction may be molded by positioning the reinforcing belt within a mold cavity and thereafter introducing the elastomeric material from which the tire is to be cast.
Inventors
- 👤 S Alderfer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:45
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/22; B60; B60C; B60C9/00; B60C9/18; B60C9/20; B29C; B29C71/00; B29C71/02; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10495; Y10T152/10765; Y10T152/10783
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
146 words
A pneumatic tire comprising; an annular tread supporting wall portion having lateral shoulders, a tread portion extending concentrically of said wall portion, a side wall joined to each said shoulder and terminating in a rim engaging bead foot located radially inwardly of said bead supporting wall portion, reinforcing means to provide the sole hoop strength necessary to maintain said bead feet in engagement with a rim, said reinforcing means being an annular belt means encased within said tire radially outwardly of said bead feet, said reinforcing means having one or more reinforcing filaments, each said filament delineating a cylindrical helix, the diameter of said helix being no greater than three times the diameter of said filament, said filaments being encased in a succession of elemental strips, said elemental strips being oriented within said annular belt such that the reinforcing filaments are disposed at a predetermined bias.
Claim 2
Dependent Claim
146 words
A pneumatic tire comprising; an annular tread supporting wall portion having lateral shoulders, a tread portion extending concentrically of said wall portion, a side wall joined to each said shoulder and terminating in a rim engaging bead foot located radially inwardly of said bead supporting wall portion, reinforcing means to provide the sole hoop strength necessary to maintain said bead feet in engagement with a rim, said reinforcing means being an annular belt means encased within said tire radially outwardly of said bead feet, said reinforcing means having one or more reinforcing filaments, each said filament delineating a cylindrical helix, the diameter of said helix being no greater than three times the diameter of said filament, said filaments being encased in a succession of elemental strips, said elemental strips being oriented within said annular belt such that the reinforcing filaments are disposed at a predetermined bias.
Claim 3
Dependent Claim
19 words
A pneumatic tire, as set forth in claim 1, in which said succession of elemental strips are laterally juxtaposed.
Claim 4
Dependent Claim
33 words
A pneumatic tire, as set forth in claim 1, in which said succession of elemental strips are laterally spaced as a first layer and retained in their laterally spaced disposition by tying means.
Claim 5
Dependent Claim
21 words
A pneumatic tire, as set forth in claim 3, in which said tying means comprises a sheet of compatible elastomeric material.
Claim 6
Dependent Claim
29 words
A pneumatic tire, as set forth in claim 3, in which said tying means comprises a second layer of laterally spaced elemental strips diagonally superimposed upon said first layer.
Claim 7
Dependent Claim
26 words
A pneumatic tire, as set forth in claim 5, in which the lateral spacing of the elemental strips in said layers form interstices through said belt.
Claim 8
Dependent Claim
15 words
A pneumatic tire, as set forth in claim 6, in which superimposed layers are registered.
Claim 9
Dependent Claim
19 words
A pneumatic tire, as set forth in claim 6, in which said superimposed layers overlap in laterally offset relation.
Claim 10
Dependent Claim
16 words
A pneumatic tire, as set forth in claim 8, in which said reinforcing filaments are wires.
Claim 11
Dependent Claim
160 words
A pneumatic tire comprising; an annular tread supporting wall portion having lateral shoulders, a tread portion extending concentrically of said wall portion, a side wall joined to each said shoulder and terminating in a rim engaging bead foot located radially inwardly of said bead supporting wall portion, reinforcing means to provide the sole hoop strength necessary to maintain said bead feet in engagement with a rim, said reinforcing means being an annular belt means encased within said tire radially outwardly of said bead feet, said reinforcing means having one or more reinforcing filaments, each said filament delineating a cylindrical helix, the diameter of said helix being up to approximately three times the diameter of the filament forming said helix, the diameter of said helix and the lay thereof being dimensioned with respect to the diameter of the wire filament so as to provide no more than seven per cent elongation of the helix within the elastic limit of the wire.
Claim 12
Dependent Claim
160 words
A pneumatic tire comprising; an annular tread supporting wall portion having lateral shoulders, a tread portion extending concentrically of said wall portion, a side wall joined to each said shoulder and terminating in a rim engaging bead foot located radially inwardly of said bead supporting wall portion, reinforcing means to provide the sole hoop strength necessary to maintain said bead feet in engagement with a rim, said reinforcing means being an annular belt means encased within said tire radially outwardly of said bead feet, said reinforcing means having one or more reinforcing filaments, each said filament delineating a cylindrical helix, the diameter of said helix being up to approximately three times the diameter of the filament forming said helix, the diameter of said helix and the lay thereof being dimensioned with respect to the diameter of the wire filament so as to provide no more than seven per cent elongation of the helix within the elastic limit of the wire.
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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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |