Method and apparatus for making a double helix thermostat metal

Details Method and apparatus for making a double helix thermostat metal Method and apparatus for making a double helix thermostat metal

1988-12-07

1990-05-01

Echols, P. W.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

72142, B21F 3500

Patent

active

049206249

ABSTRACT:
The disclosure relates to a method and apparatus for fabricating a double helix coil comprising the steps of and apparatus for coiling a wire into a first helix, removably securing one end portion of the first helix to an arbor, coiling the first helix about the arbor to form a coil having a second helix, detaching the one end portion of the coil from the arbor and removing the double helix coil from the arbor.

REFERENCES:
patent: 2136649 (1938-11-01), Wadsten
patent: 2142865 (1939-01-01), Zabel
patent: 2537435 (1951-01-01), Warmey
patent: 3048201 (1962-08-01), Johnson
patent: 4408639 (1983-10-01), Hayama et al.

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