US4579160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-collapsing pneumatic safety tire
Assignee: Individual
•
Filing: 1983-12-21
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Granted: 1986-04-01
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Expires: 2003-12-21
Abstract
Abstract A pneumatic tire, which has a plurality of comprssion springs radially disposed inside a conventional tire casing, located in such a manner, that if the tire is punctured and the air is lost, the radius of said tire will remain substantially constant, which will allow the vehicle or aircraft involved to retain its stability, and thus prevent damage to property and the loss of human life.
Inventors
- 👤 Derek D. Hardingham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:16
CPC Classifications
B; B60; B60C; B60C7/00; B60C7/10; B60C7/14; B60C7/16; B60C7/18; B60C17/00; B60C17/04; B60C17/06; B60C2017/068; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10036; Y10T152/10045; Y10T152/10495
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
74 words
A tire assembly comprising a pneumatic tire, a plurality of springs radially disposed in the tire for supporting the tire from collapse upon puncture of the tire without appreciable deformation, each spring is provided with an inner locating and retaining plate and an outer locating and retaining plate, each inner plate is provided with flanges that provide firm radial contact with adjacent flanges of adjacent inner plates to prevent circumferential movement of the springs.
Claim 2
Dependent Claim
74 words
A tire assembly comprising a pneumatic tire, a plurality of springs radially disposed in the tire for supporting the tire from collapse upon puncture of the tire without appreciable deformation, each spring is provided with an inner locating and retaining plate and an outer locating and retaining plate, each inner plate is provided with flanges that provide firm radial contact with adjacent flanges of adjacent inner plates to prevent circumferential movement of the springs.
Claim 3
Dependent Claim
34 words
A tire assembly as defined by claim 1 wherein the outer retaining and locating plate is larger than the spring so as to distribute the compression force over a large area of the tire.
Claim 4
Dependent Claim
98 words
A tire and wheel assembly comprising a pneumatic tire, a wheel having a rim on which the pneumatic tire is mounted, a plurality of springs radially disposed in the tire for supporting the tire from collapse upon puncture of the tire without appreciable deformation, each spring is provided with an inner locating and retaining plate and an outer locating and retaining plate, each inner plate is in contact with the rim of the wheel and is provided with flanges that provide firm radial contact with adjacent flanges of adjacent inner plates to prevent circumferential movement of the springs.
Claim 5
Dependent Claim
98 words
A tire and wheel assembly comprising a pneumatic tire, a wheel having a rim on which the pneumatic tire is mounted, a plurality of springs radially disposed in the tire for supporting the tire from collapse upon puncture of the tire without appreciable deformation, each spring is provided with an inner locating and retaining plate and an outer locating and retaining plate, each inner plate is in contact with the rim of the wheel and is provided with flanges that provide firm radial contact with adjacent flanges of adjacent inner plates to prevent circumferential movement of the springs.
Claim 6
Dependent Claim
36 words
A tire and wheel assembly as defined by claim 3 wherein the outer retaining and locating plate is larger than the spring so as to distribute the compression force over a large area of the tire.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |