VEHICLE WHEELS

• US 3,854,516 A
• Filed: 05/09/1973
• Issued: 12/17/1974
• Est. Priority Date: 05/12/1972
• Status: Expired due to Term

• Current Assignee: Hughie Burnell
• Original Assignee: Hughie Burnell
• Inventors: Burnell, Hughie
• Primary Examiner(s): Wood, Jr., M. Henson
• Assistant Examiner(s): Bertsch, Richard A.
• Application Number:
  US05/358,632
• Time in Patent Office: 587 Days
• Field of Search: 152/313,310-312,415,151,DIG.5,323,33R
• US Class Current: 152/415
• CPC Class Codes: B29D 30/04 Resilient fillings for rubber tyres; Filling tyres therewith
• CPC Class Codes: B60C 7/1015 using foam material
• CPC Class Codes: Y10T 152/10405 Sponge rubber
• CPC Class Codes: Y10T 152/10738 with means to protect tire from rim

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.

Claims

2. 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.

3. 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.

4. 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.

5. 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.