Metal deforming – With means to actuate both elements of tool-couple – Handle actuated
Reexamination Certificate
2006-03-21
2006-03-21
Jones, David (Department: 3725)
Metal deforming
With means to actuate both elements of tool-couple
Handle actuated
C072S414000, C072S370100
Reexamination Certificate
active
07013699
ABSTRACT:
The invention herein illustrates a tool and method for use in joining pipes or other tubular fittings having different diameters in a telescopic type joint. The preferred tool provides a pair of dimples or marks on one of the pipes to obstruct insertion as one pipe is slid into another. The obstruction thus provides a uniform overlap of the pipes to ensure sufficient surface area for the material used in the joining process, such as a brazing metal. Overlapping uniformity provides a strong, durable joint. The tool includes a pair of jaws which can be closed along the wall of the tubular member to form for example, a pair of dimples therein. In an alternate embodiment of the pipe fitting tool only one dimple is formed in the pipe wall from a single ram.
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T-Drill Industries, Inc. brochure; six (6) pages; Oct. 4, 1993.
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