Metal working – Method of mechanical manufacture – Gas and water specific plumbing component making
Patent
1998-06-23
1999-09-28
Cuda, Irene
Metal working
Method of mechanical manufacture
Gas and water specific plumbing component making
2989003, 29890043, 294322, 29512, 7237004, 7237026, H01B 1900
Patent
active
059568470
ABSTRACT:
A method for manufacturing a fluid coupling apparatus for communicating fluid between a fluid hose and a heat exchanger. The present invention provides an inexpensive method for producing an integral fluid coupling apparatus that minimizes and eliminates the spacing and clearance required of bending tubular fluid lines and conduits. The method of the present invention utilizes a seamless welded tubing and compresses a portion of the tubing into a hollow rectangular configuration. During the pressing operation, a sphere is inserted into the tubing and aligned with an aperture previously formed in a wall of the tubing. When the tubing is compressed, the sphere is forced through the aperture provided in the tubing, and a raised lip or shoulder is extruded from the portion of the tubing defined in the aperture. A raised lip or shoulder is formed from the extrusion, and the raised lip is inserted through an aperture provided in a wall of the heat exchanger and rolled onto the wall of the heat exchanger. The end of the tubing opposite the compressed rectangular configuration maintains its cylindrical configuration for receiving the fluid hose.
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Cuda Irene
Nguyen Trinh T.
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