Patent EP1111872A2 successfully refreshed from Google Patents.
US4940445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire and process for making a tire
Assignee: Individual
•
Filing: 1989-09-27
•
Granted: 1990-07-10
•
Expires: 2009-09-27
Abstract
Abstract A tire and method of making a tire by attaching a rubber material to a foam core to form an intermediate composite, placing the intermediate composite in mold, then heat during the composite so that the rubber fills the mold and fuses to the surface of the foam core. The tire can be made on a wheel by gluing a foam strip around the wheel, then sanding the foam to a desired tolerance, gluing with rubber cement at least one layer of the rubber material and then curing at a temperature between 180 and 300 degrees Fahrenheit for 40 to 60 minutes. For small scale tires such as those used on remotely operated race cars, the tires are preferably partially cured to increase traction.
Inventors
- 👤 Aubrey S. DesPortes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:51
CPC Classifications
A; A63; A63H; A63H17/00; A63H17/26; A63H17/262; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10279; Y10T152/10378; Y10T152/10387; Y10T152/10396; Y10T152/10405
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
79 words
A tire made by a process comprising the steps of: wrapping at least one layer of a rubber material around a foam core to form an intermediate composite, said rubber material having an inner surface; placing said intermediate composite in a mold; and heating said mold to a temperature between 180 and 300 degrees Fahrenheit for 40 to 60 minutes to cure said composite material and to fuse said foam core to said inner surface of said rubber material.
Claim 2
Dependent Claim
79 words
A tire made by a process comprising the steps of: wrapping at least one layer of a rubber material around a foam core to form an intermediate composite, said rubber material having an inner surface; placing said intermediate composite in a mold; and heating said mold to a temperature between 180 and 300 degrees Fahrenheit for 40 to 60 minutes to cure said composite material and to fuse said foam core to said inner surface of said rubber material.
Claim 3
Dependent Claim
21 words
The tire of claim 1 further comprising the step of gluing said rubber material to said foam core with rubber cement.
Claim 4
Dependent Claim
36 words
The tire of claim 1 wherein said tire is cured at a temperature between 180 and 232 degrees Fahrenheit for 40 to 50 minutes to partially cure said rubber material for increased traction at high speeds.
Claim 5
Dependent Claim
36 words
The tire of claim 2 wherein said tire is cured at a temperature between 180 and 232 degrees Fahrenheit for 40 to 50 minutes to partially cure said rubber material for increased traction at high speeds.
Claim 6
Dependent Claim
24 words
The tire of claim 1, further comprising the gluing said foam core to a wheel before wrapping said foam core with said rubber material.
Claim 7
Dependent Claim
24 words
The tire of claim 2, further comprising the gluing said foam core to a wheel before wrapping said foam core with said rubber material.
Claim 8
Dependent Claim
24 words
The tire of claim 3, further comprising the gluing said foam core to a wheel before wrapping said foam core with said rubber material.
Claim 9
Dependent Claim
24 words
The tire of claim 4, further comprising the gluing said foam core to a wheel before wrapping said foam core with said rubber material.
Claim 10
Dependent Claim
23 words
The tire of claim 5 further comprising the step of sanding said foam core to a desired tolerance before attaching said rubber material.
Claim 11
Dependent Claim
23 words
The tire of claim 6 further comprising the step of sanding said foam core to a desired tolerance before attaching said rubber material.
Claim 12
Dependent Claim
23 words
The tire of claim 7 further comprising the step of sanding said foam core to a desired tolerance before attaching said rubber material.
Claim 13
Dependent Claim
23 words
The tire of claim 8 further comprising the step of sanding said foam core to a desired tolerance before attaching said rubber material.
References Cited (Backward Citations)
US2228212A
Cited
US3408770A
Cited
US3835583A
Cited
US3846201A
Cited
US4176702A
Cited
US3987832A
Cited
US3915774A
Cited
US4157930A
Cited
US4269644A
Cited
US4240851A
Cited
US4274897A
Cited
JPS5893602A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-07-09 | 1994-01-08 | 1994-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-09 | 1998-01-08 | 1998-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-09 | 2002-01-08 | 2002-07-10 | $7700.00 | Window Closed / Lapsed |