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:
Nov. 30, 1993
Filed:
Aug. 07, 1992
Applicant:
Inventors:
Didier Riquier, Persan, FR;
Alain Lelievre, Le Mesnil en Thelle, FR;
Assignee:
Hutchinson, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60C / ; B60C / ;
U.S. Cl.
CPC ...
152157 ; 152310 ; 152314 ; 152322 ;
Abstract
A pressure chamber or core for an unpuncturable pneumatic tire is constituted by a toroidal cushion of elastomer material including mutually independent gastight cells containing a gas under pressure. The cells are substantially all of the same right cross-section, and the area of the right cross-section of any one cell is a small fraction of the area of the right cross-section of the chamber.