Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2005-03-15
2005-03-15
Stoner, Kiley S. (Department: 1725)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S312000
Reexamination Certificate
active
06866086
ABSTRACT:
The invention provides methods of manufacturing solid form automobile safety belt buckles with hardened tips that enable the shattering of vehicle glass. One method includes heating a polymer/plastic material to a semi-fluid state (the material being heated just enough to melt and ensure uniform and complete distribution and composition and minimal porosity), injecting the material with pressure into a mold and then releasing the molding of the finished product. Another method involves ladling molten metal into a mold/die lined with a heat resistant material, under pressure and releasing the finished product. A third method involves applying heat to a metal and hammering or otherwise compressing the material into the desired form. A fourth method uses an open mold and molten metal or alloy is poured into the bottom of the mold and the top is closed to ensure uniformity and accuracy in the form of the final product.
REFERENCES:
patent: 3795030 (1974-03-01), Yates et al.
patent: 3807000 (1974-04-01), Weman
patent: 5218744 (1993-06-01), Saito
Stoner Kiley S.
Thrasher Associates,LLP
Tran Len
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