Resources Contact Us Home
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
Method, apparatus or computer program for changing from scheduled to unscheduled communication modes
Driving system of display panel having a circuit of a voltage generator and driving method thereof
Method and system for utilizing Perovskite material for charge storage and as a dielectric
Microporous membranes and methods for producing and using such membranes
Rotation angle detecting device
Products for animal use including humans having a certificate verifying at least one of efficacy or safety, and methods of providing such certificates
Lubricating oil with enhanced protection against wear and corrosion
  Randomly Featured Patents
Superconducting metallic glass transition-edge-sensors
Foldable cart for shopping
Replication using a special off-host network device
Two-piece drill bits
Method and apparatus for detecting evaporation of getter material during manufacture of a cathode-ray tube, especially for television
Lifting apparatus
Mattress suspension system
Decorative floodlight luminaire
Camera having object distance measuring device
Storage medium, recording/reproducing apparatus, and recording/reproducing method