Neon tube support having molded spring and method of making...

Details Neon tube support having molded spring and method of making... Neon tube support having molded spring and method of making...

H - Electricity

05

B

H05B 33/02 (2006.01)

Patent

CA 2067429

Abstract of the Disclosure A unitary helical coil spring assembly is inserted in a tubular body to form a neon tube support. The assembly is molded of plastic using a mold comprised of two planar blocks in each of which there are a series of axially spaced apart recesses configured to form half convolutions of a spring and there are projections having rounded ends projecting from between half convolution recesses on each mold block which interdigitate and project into the half convolution recesses in the opposite mold block when the planar surfaces are interfaced so the rounded ends cooperate to form a circular inside diameter of the spring when plastic is injected in the recesses.

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