Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – With cutting – punching – piercing – severing – or tearing
Patent
1990-05-09
1995-08-01
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
With cutting, punching, piercing, severing, or tearing
156252, 156253, 83 30, 83684, 83685, 83691, B32B 3118
Patent
active
054377587
ABSTRACT:
A "green" sheet manufacturing method and apparatus contemplates perforating the "green" sheet with through-holes as it is calendared, rolled or extruded by rollers. To this end, the rollers are each machined with punches of a length one-half the thickness of the "green" sheet and that mate with punches on the other. Any flash or diaphragm obtaining in the through-holes are removed by subsequently exposing the "green" sheet to new mechanisms providing fluid pressure or vibration, or spiking. The bosses or punches may be supplemented with enlargements and other bosses providing for pads and counterholes and grooves in the "green" sheet. The through-holes may be shaped to have a smaller diameter interiorly than at the outer edges to lock in place solder or other conductive media squeegeed into them. The locking action may be enhanced by slightly off-setting bosses or mating punches to produce through-holes whose top and bottom halves are slightly off-set.
REFERENCES:
patent: 3518756 (1970-07-01), Bennett et al.
patent: 3547724 (1970-12-01), Zagusta
patent: 3583266 (1971-06-01), Kondo
patent: 3770529 (1973-11-01), Anderson
patent: 4020725 (1977-05-01), Climo
patent: 4039338 (1977-08-01), Swiss et al.
Taphorn Joseph B.
Taphorn Joseph B.
Weston Caleb
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