The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 30, 1985
Filed:
Aug. 16, 1982
Thorsten Reese, Neustadt, DE;
Continental Gummi-Werke Aktiengesellschaft, Hanover, DE;
Abstract
A filling gas for a tire having one or more hollow chambers, especially vehicle tires with a body of rubber or rubber-like material having suitable reinforcement inserts. Sulfur hexafluoride (SF.sub.6) is used as the filling gas, which can also be a mixture of sulfur hexafluoride and one or more other gases, such as air. The tire hollow chamber, in comparison to the air, contains a greater quantity of sulfur hexafluoride. The ratio of air quantity to the quantity of sulfur hexafluoride is in the range of approximately 1:1 to 1:8.5. A relief or venting conduit is provided that extends into the vicinity of the highest location of the tire hollow chamber. Optionally, the rim breakthrough or valve leading to the tire hollow chamber is closed or sealed off. The valve for filling the tire hollow chamber, and the venting device may be arranged as a combined unit with respect to the rim body. The filling gas is introduced into the air-filled tire hollow chamber at an over-pressure; a pressure equalization is then brought about with respect to the atmosphere, and further filling gas is then introduced at over-pressure into the tire hollow chamber. The tire and rim may be permanently connected to each other in a gas-tight manner.