Method and apparatus for making a series of pocketed coil spring

Details Method and apparatus for making a series of pocketed coil spring Method and apparatus for making a series of pocketed coil spring

1981-07-16

1984-04-03

Wityshyn, Michael G.

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Methods

With contents treating

53114, 53438, 53450, 53529, 53550, 156 70, 156 731, 156200, 156290, 156352, 156365, 156383, 156464, 156465, 156497, 156553, 1565801, 1565802, 1565831, B29C 2708, B32B 3120, B65B 3556

Patent

active

044399774

ABSTRACT:
A method and apparatus are disclosed for making a series of coil springs pocketed within individual pockets in an elongate fabric strip comprised of two overlying plies capable of being thermally welded together. The fabric strip is fed along a guide path during which compressed coil springs are inserted between the piles with the axes of the springs substantially normal to the planes of the plies, whereafter the fabric plies are thermally welded together longitudinally and transversly to form a series of connected pocketed springs. After thermal welding, the pocketed springs are passed through a turner assembly during which the coil springs are reoriented within the fabric pockets to positions wherein the axes of the springs are transverse to the fabric strip.

REFERENCES:
patent: 1183993 (1931-07-01), Gail
patent: 2032510 (1936-03-01), Spuhl
patent: 3329550 (1967-07-01), Kucheck
patent: 3492783 (1970-02-01), Dohmeier
patent: 3562041 (1971-02-01), Robertson
patent: 3634170 (1972-01-01), Hottendorf
patent: 3668816 (1972-06-01), Thompson
patent: 3785902 (1974-01-01), Preston
patent: 3817802 (1974-06-01), Meyer

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