Structure for finding wrong assemblage of metallic laminate type

Details Structure for finding wrong assemblage of metallic laminate type Structure for finding wrong assemblage of metallic laminate type

1991-07-24

1994-01-25

Loney, Donald J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428138, 428916, 428457, 428444, 428596, 277235B, 277 2, 29407, 738658, 738659, 734321, F16J 1508, B32B 324

Patent

active

052814645

ABSTRACT:
A structure for finding wrong assemblage of the metallic laminate type gasket according to the present invention is composed of a plurality of component sheets overlapping each other, in which small holes for finding wrong assemblage in number one less than the number of sheets to be laminated are bored on each sheet at a part so that, unless any one of the sheets is absent, the small holes are prevented from joining in line like one through hole, whereby whether lamination of the sheets is as complete as designed or not can be confirmed and, when any one of the sheets is absent and small holes join in line like one through hole to pierce through all sheets, wrong assemblage can be confirmed by mechanical or electrical means.

REFERENCES:
patent: 2089254 (1937-08-01), Fitzgerald
patent: 4217384 (1980-08-01), Schnug
patent: 4648607 (1987-03-01), Yamada et al.

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