Abstract: A stripper rubber for oil and gas wells, water and geo-thermal wells, having an interior surface design which includes a circular, convex knee portion in the throat area of the stripper rubber to provide additional support to the stripper rubber during insertion of a tubular member through the stripper rubber. The composition for the stripper rubber includes, in one embodiment, enhanced wear characteristics by the addition of milled fibers of Twaron.RTM. mixed homogeneously throughout the stripper rubber.
Abstract: A temperature indicator including a barrel and shaft wherein the shaft has a number of integrally formed, longitudinally spaced seals which engage the internal bore of the barrel in order to keep the bore of the barrel sealed from any incursion of cooking juices into the barrel and from the outflow of any melted temperature sensitive material.