Method of making a U-shaped closure tamper evident

Details Method of making a U-shaped closure tamper evident Method of making a U-shaped closure tamper evident

1988-11-14

1990-07-31

Jones, David

Metal deforming

By shot-blasting

29 907, 51319, 59 75, 24 305W, B24C 100

Patent

active

049441728

ABSTRACT:
An improved, integral, U-shaped metal clip for use as a closure includes a textured surface to enhance the strength of the clip and to evidence tampering. The texturing may be effected by one or more working steps on the surface.

REFERENCES:
patent: 3073022 (1963-01-01), Bush et al.
patent: 3400433 (1968-09-01), Klenz
patent: 3564663 (1971-02-01), Roberts
patent: 4581913 (1986-04-01), Reed
"Glass Bead Impact Blasting", by Michael Woelfel and Robert Mulhall, Metal Progress, 9/1982, vol. 122, No. 4.
"Shot Peening", by American Wheelabrator & Equ. Corp., 1946, pp. 2, 3, 4, 5, 6, 7, 8, and 9-14.

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