US 12,103,257 B2
Method for detaching elastomer particles
Jean-Marie Dettorre, Clermont-Ferrand (FR); Frederic Drago, Clermont-Ferrand (FR); Michel Druet, Clermont-Ferrand (FR); Cyril Piq, Clermont-Ferrand (FR); and Lionel Silva, Clermont-Ferrand (FR)
Assigned to COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
Appl. No. 17/784,263
Filed by COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN, Clermont-Ferrand (FR)
PCT Filed Dec. 3, 2020, PCT No. PCT/FR2020/052261
§ 371(c)(1), (2) Date Jun. 10, 2022,
PCT Pub. No. WO2021/116568, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 1914129 (FR), filed on Dec. 11, 2019.
Prior Publication US 2023/0045138 A1, Feb. 9, 2023
Int. Cl. B29D 30/06 (2006.01); B08B 9/00 (2006.01)
CPC B29D 30/0662 (2013.01) [B08B 9/00 (2013.01); B08B 2209/005 (2013.01); B29D 2030/0663 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A method for detaching elastomer particles which adhere to microvalves disposed on an inner surface of a vehicle tire curing mold, the method comprising:
detecting a presence of a microvalve disposed on the inner surface of the vehicle tire curing mold;
contacting a surface of the microvalve with an ultrasonic pen; and
vibrating the microvalve with a constant amplitude of between approximately 0.05 and 0.2 mm and a frequency of between 20,000 and 30,000 Hz during detachment of the elastomer particles from the microvalve.