Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1984-10-18
1986-10-14
Davis, Jr., Albert W.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29451, 29453, 29525, 165162, 165172, 248 681, B23P 1902
Patent
active
046163905
ABSTRACT:
Superdensity assembly method and system for coiled tubing bundle plastic heat exchangers resists the large buoyancy forces occurring due to ice build-up on the multiple tubes and provides fast melt down in phase change thermal storage tanks. The coiled tubing bundle heat exchanger in the tank is assembled from numerous vertical slippery plastic strips, for example, high density polyethylene or ultra high molecular weight polypropylene, 1/8th inch to 1/4th inch thick having keyhole-shaped slots of predetermined uniform spacing extending inwardly from the front edge of each strip. Each slot terminates in a rounded seat opening spaced inwardly a predetermined distance from the rear edge of the strip. The tubes are forced into the keyhole slots to become firmly seated and captured in these rounded seat openings for advantageously holding the tubes extending horizontally parallel with each other and uniformly spaced apart vertically by the predetermined center-to-center spacing of the rounded seat openings in each strip. The assembly of parallel tubes is coiled into a tight spiral coil, as seen in plan view, having a vertical axis parallel with the length "L" of the strips so that the successive coil convolutions rest against the rear edges of neighboring strips for being uniformly spaced apart horizontally by the predetermined location of the rounded seat opening with respect to the rear edge of each strip.
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Davis Jr. Albert W.
Smith Randolph A.
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