Resin denture base molding apparatus

Details Resin denture base molding apparatus Resin denture base molding apparatus

1992-06-18

1994-04-12

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Means forming a mold; or flask, per se

Including ram type feed of molding material or means to...

249 54, 264 17, 425542, 425DIG11, A61C 1320

Patent

active

053021045

ABSTRACT:
An improved resin denture base molding apparatus for molding denture bases by injecting fused resin R into a denture base plaster mold formed in a flask F, wherein the improvement includes a table 2 provided in a manner capable of elevating up and down along a plurality of vertical guide rods 1, an elevation driving mechanism 3 for elevating the table 2, an upper support member 6 provided horizontally across each upper end of the guide rods 1 and having a through hole 4, a spring storing section 7 provided at the location of the through hole 4 on the upper surface of the upper support member 6, a push spring 8 stored in the spring storing section 7, a piston rod 10 inserted in the through hole 4 and urged downwardly by the push spring 8 and having a resin pressurizing piston 9 at the lower end thereof, a flask F placed on the table 2 and having a resin filling hole 11 at the top thereof, a cylinder 13 having a resin passage 12 that communicates with the resin filling hole 11 at the bottom wall thereof and is located below the piston 9 and a pressure breakable member 14 disposed within the cylinder 13 so that it covers the resin passage 12.

REFERENCES:
patent: 1974663 (1934-09-01), May
patent: 2551932 (1951-05-01), Dimmer
patent: 2576224 (1951-11-01), Hordes
patent: 2592376 (1952-04-01), Ballard
patent: 2660758 (1953-12-01), Hennike et al.
patent: 2948018 (1960-08-01), Hintermann et al.

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