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:
Sep. 23, 2025
Filed:
Jun. 25, 2021
Bridgestone Europe Nv/sa [be/be], Zaventem, BE;
Alessio Ciarnella, Rome, IT;
Paolo Straffi, Rome, IT;
Bridgestone Europe NV/SA, Zaventem, BE;
Abstract
Method and application unit () for applying a sound-absorbing material () to an inner cavity of a pneumatic tyre () using a strip () of sound-absorbing material () provided on one side with an adhesive layer () covered with a protective lining (). The following steps are provided: attaching an initial part of the protective lining () to a recovery drum (); partially winding the strip of sound-absorbing material onto the applicator roller (); pressing, by means of the applicator roller (), the strip () of sound-absorbing material () against the inner cavity of the pneumatic tyre () whilst the pneumatic tyre () is caused to rotate; and rotating the recovery drum () synchronously with the pneumatic tyre (), such as to wind the protective lining () around the recovery drum (), step-by-step, as the protective lining () is separated from the strip () of sound-absorbing material ().