Structure for finding wrong assemblage of metallic laminate type gasket
US5281464A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1991 |
| Grant date | Jan 25, 1994 |
| Priority date | — |
| Expiry date | Jul 24, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.