US3854516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle wheels
Assignee: Archibald Kenrick and Sons Ltd
•
Filing: 1973-05-09
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Granted: 1974-12-17
•
Expires: 1993-05-09
Abstract
Abstract A method of filling a tire on a vehicle wheel with polyurethane foam comprises fitting the tire to the rim injecting liquid ingredient materials for the foam through an inlet opening in the rim closing the inlet opening revolving the wheel about a vertical axis to distribute the ingredients around the interior of the tire and when foam begins to escape through an outlet which is diametrically opposite to the inlet opening, closing a shut off valve at said outlet to prevent escape of further foam.
Inventors
- 👤 H Burnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:40
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/04; B60; B60C; B60C7/00; B60C7/10; B60C7/101; B60C7/1015; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10279; Y10T152/10378; Y10T152/10387; Y10T152/10396; Y10T152/10405; Y10T152/10495; Y10T152/10738
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
60 words
A method as claimed in claim 1 in which the valve is a shut off valve at the outlet and is detachably carried in a member containing a pressure bleed valve, the closure of said shut off valve being accomplished before the bleed valve is closed, and finally removing the shut off valve after the bleed valve has been closed.
Claim 2
Dependent Claim
28 words
A method as claimed in claim 1 in which the wheel is rotated at a speed insufficient to create centrifugal force in the liquid ingredients in the tire.
Claim 3
Dependent Claim
78 words
A vehicle wheel having a polyurethane foam filling within the tire and having an inlet in the rim through which liquid ingredients for the foam can be injected, and an outlet at a position diametrically opposite to the inlet, the inlet having a closable opening and the outlet having a closable valve including two separate valve elements, one of which is detachably mounted and the other being provided in a body secured to the rim of the wheel.
Claim 4
Dependent Claim
28 words
A vehicle wheel as claimed in claim 4, in which the said other valve element is a screw arranged to block a passage formed in the said body.
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) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |