Method of producing a packing ring

Details Method of producing a packing ring Method of producing a packing ring

1983-02-18

1985-04-16

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

294695, 29DIG34, 156218, 1563031, 1563042, 2281734, 277166, B23P 1102

Patent

active

045106649

ABSTRACT:
In order to produce a packing ring having a stiffening ring by a method which dispenses with the use of a complicated and expensive mold, an extrusion having the desired cross-section of the packing ring and having a cavity, extending in the extrusion direction, for the reception of the stiffening ring is firstly produced. The extruded material cut to length in accordance with the desired circumference of the packing ring is slipped onto a wire which is similarly cut to length and bent into a circle. The ends of the extruded material are pushed back while the ends of the wire are welded together, so that a closed stiffening ring is produced. Then the material ends are joined together and are bonded or vulcanized to one another.

REFERENCES:
patent: 834611 (1906-10-01), Garlock
patent: 1179562 (1916-04-01), Reich
patent: 1721155 (1929-07-01), Johnson
patent: 2148038 (1939-02-01), Raybould
patent: 3162456 (1964-12-01), Williams
patent: 3591190 (1971-07-01), Winay
patent: 3660192 (1972-05-01), Smith et al.
patent: 3723216 (1973-03-01), Kirkwood
patent: 4368894 (1983-01-01), Parmann

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