Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and apparatus for the injection molding and vulcanization of vehicle tires










Image Number 5 for United States Patent #4444612.

A vehicle tire crown portion 10 including a tread 11 is injection molded and prevulcanized in a closed annular mold cavity 17 defined by a segmented outer mold 16 clamped together by a locking ring 22 and a segmented core 19 pressed against the outer mold by upper and lower pressure plates 25, 26. The core is then removed by disassembling its segments, whereafter a carcass 14 and prevulcanized sidewalls 12, 13 are placed in the central portion of the mold on an inflatable air bag 38 flanked by lateral mold sections 39, 40. The vulcanization of the tire assembly is then completed, during which the sidewalls are joined to the retained crown portion.








 
 
  Recently Added Patents
System and method for providing security in browser-based access to smart cards
Fast carrier allocation in multi-carrier systems
Image decolorizing device
System and method for creating a build set and bill of materials from a master source model
Anti-phishing system and method
Method to trace video content processed by a decoder
Preserving user applied markings made to a hardcopy original document
  Randomly Featured Patents
Variable volume cell saver bowl
Digital modulation signal mixer
Method for the optimised management of resources in a terminal comprising multiple interfaces
Seat with built-in beverage dispenser
Jet level sensor for fuel tanks
Ink jet recording head
Image forming apparatus with loop control
Monitor calibrator
Digital voice storage system
High efficiency snowthrower