Metal working – Method of mechanical manufacture – Assembling or joining
Reexamination Certificate
2011-08-30
2011-08-30
Hong, John C (Department: 3726)
Metal working
Method of mechanical manufacture
Assembling or joining
Reexamination Certificate
active
08006366
ABSTRACT:
This invention pertains to a method for preparing simulated bamboo from metal tubing that includes the following steps: (1) preparing a plurality of short segments of metal tubing; (2) creating a tapered wide opening on one end of each segment of metal tubing; (3) cutting an acute angle on the tapered wide opening; (4) longitudinally aligning two segments together by inserting the straight end of one segment into the tapered end of the second segment; (5) applying a flux to the joint of said segments; (6) joining the two short segments together; and, (7) grinding the outer surface of the joint to create a smooth surface. When the metal tubing is made of copper, or steel with copper-based metallic paint applied thereto, an oxidizing agent may be applied to the joint and the outer surfaces of the two short segments to product a circular black line around the joint and a green, brown color surface that simulates bamboo. When the metal tubing is made of steel, the segments are welded together. Paint is then applied to the outer surfaces or to the joint to simulate bamboo.
REFERENCES:
patent: 3826285 (1974-07-01), Reynolds
patent: 4231834 (1980-11-01), Trejo Gonzalez
patent: 6938987 (2005-09-01), Ellson et al.
Craine Dean A.
Hong John C
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