Conduit surface repair tool

Abstract

The present disclosure is directed to a surfacing tool for repairing a sealing surface on a fitting. The surfacing tool is defined by a tool head and a tool head guide having an internal bore sized to receive the tool head. The tool head is includes a reverse flare working surface positioned at a first end thereof. A threaded element is positioned at one end of the tool head guide to threadingly receive a threaded flare fitting. The tool head being rotatable within the tool head guide while engaging and grinding the sealing surface on the fitting to a desired finish.

1 . A surfacing tool comprising:
 a tool head having an external cylindrical shape with a reverse flare working surface positioned proximate a first end thereof;   a shaft extending from an opposing second end of the tool head;   a tool head guide including an internal bore sized to receive the tool head therein, the internal bore configured to engage an outer surface of the tool head and align the reverse flare working surface in a desired orientation; and   a threaded portion positioned at one end of the tool head guide, the threaded portion configured to threadingly receive a threaded flare fitting.   
     
     
         2 . The surfacing tool of  claim 1 , wherein the tool head guide includes a cylindrical outer wall. 
     
     
         3 . The surfacing tool of  claim 1 , wherein the tool head guide includes a plurality of planer outer walls. 
     
     
         4 . The surfacing tool of  claim 3 , wherein at least one of the planer outer walls include a plurality of ribs extending outward therefrom. 
     
     
         5 . The surfacing tool of  claim 4 , wherein the ribs are configured to provide a grip feature. 
     
     
         6 . The surfacing tool of  claim 1 , wherein the threaded portion of the tool head guide and the tool head guide are separate components. 
     
     
         7 . The surfacing tool of  claim 1 , wherein the threaded portion of the tool head guide is defined by a cylindrical insert having an outer wall configured to engage the internal bore of the tool head guide. 
     
     
         8 . The surfacing tool of  claim 7 , wherein the threaded portion includes a flange extending from the cylindrical insert. 
     
     
         9 . The surfacing tool of  claim 8 , wherein the flange of the threaded portion engages with an end wall of the tool head guide. 
     
     
         10 . The surfacing tool of  claim 1 , wherein a flare fitting is threadingly engaged with the threaded portion of the tool head guide. 
     
     
         11 . The surfacing tool of  claim 1 , wherein the shaft includes a torque transmission feature extending along an external length thereof. 
     
     
         12 . The surfacing tool of  claim 1 , wherein the shaft is connectable to a rotary tool. 
     
     
         13 . The surfacing tool of  claim 12 , wherein the rotary tool includes one of an electric or a pneumatic motor drive. 
     
     
         14 . The surfacing tool of  claim 12 , wherein the rotary tool is operable for rotating the tool head within the tool head guide while engaged with the sealing surface of the flare fitting. 
     
     
         15 . A kit for repairing seal surfaces for a plurality of different fittings, the kit comprising:
 a plurality of differently sized tool head guides, each tool head guide including an internal cylindrical bore with a threaded element positioned at one end thereof;   a plurality of differently sized tool heads, each tool head sized to slide and rotate within the internal cylindrical bore of a correspondingly sized tool head guide; and   a tool head having an external cylindrical shape with a reverse flare working surface positioned proximate a first end thereof.   
     
     
         16 . The kit of  claim 15  further comprising a shaft extending from an opposing second end of the tool head. 
     
     
         17 . The kit of  claim 16 , wherein the shaft is connectable to a rotary tool. 
     
     
         18 . The kit of  claim 15 , wherein the internal bore of each tool head guide is configured to engage an outer surface of a corresponding tool head and position the reverse flare working surface into alignment with the seal surface of one of the plurality of fittings. 
     
     
         19 . The kit of  claim 15 , wherein each of the threaded elements is configured to threadingly receive a threaded flare fitting. 
     
     
         20 . The kit of  claim 15 , wherein the reverse flare working surface of each of the tool heads includes a material coating adapted to remove material from the seal surface of a corresponding fitting. 
     
     
         21 .- 27 . (canceled)