Method of cutting a helical cut seal

Details Method of cutting a helical cut seal Method of cutting a helical cut seal

1992-02-10

1992-12-22

Briggs, William

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

83 49, 409293, B23D 500

Patent

active

051724740

ABSTRACT:
A method of cutting a ring seal, so that the ring seal may be transversely installed over a coaxial element, involves using a cutting tool to cut the seal radially and circumferentially. The cut surfaces overlap in intimate contact and maintain intimate contact to inhibit leakage between the cut surfaces when the ring seal radially expands. The cut surfaces are helicoid, each characterized by a radial generatrix that is constantly perpendicular to the axis of the seal.

REFERENCES:
patent: 1557945 (1925-10-01), Schlotter et al.
patent: 2962332 (1960-11-01), Hale
patent: 3921485 (1975-11-01), Tobey et al.
patent: 4461067 (1984-07-01), Weissing et al.
patent: 5067733 (1991-11-01), Nagai
patent: 5079982 (1992-01-01), Antonissen

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