An internally sealed pivotal joint assembly for use on buses and other vehicles. The assembly includes an eyelet which has disposed therein a bearing socket for positioning a ball stud journal therein. The assembly includes a cap and a sealing ring provided to the socket in order to avoid ingestion...http://www.google.ca/patents/US5795092?utm_source=gb-gplus-sharePatent US5795092 - Internally sealed pivotal joint assembly
