Patent ID: 8485010
Filing Date: 2013-07-16
Classification: B21C,B21D,F23G,F23N

Abstract:
1. A method of installing a retractable thermocouple for sensing a flame of a flare pilot at an upper end of a flare stack, said method comprising the steps of: (a) pushing said retractable thermocouple through a first set of offset straightening rollers to straighten said retractable thermocouple in a first plane; then (b) pushing said retractable thermocouple through a second set of offset straightening rollers to straighten said retractable thermocouple in a second plane different from said first plane; and then (c) pushing said retractable thermocouple through a conduit which extends upwardly toward said flare pilot at said upper end of said flare stack, wherein each of said straightening rollers in said first set and said second set of said offset straightening rollers has a non-metallic contacting surface which contacts said retractable thermocouple.