The present invention provides a packer cup system for use inside a wellbore comprising a packer cup and a backup component coupled thereto. In one configuration, the backup component further comprises an angled support member and a rubber ring disposed between the angled support member and the packer...http://www.google.de/patents/US7735568?utm_source=gb-gplus-sharePatent US7735568 - Packer cup systems for use inside a wellbore
