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Class Information
Number: 164/171
Name: Metal founding > Means to shape a forming surface > Including means for compacting particulate fluent mold materials > Flexible or deformable pressure means > Utilizing contiguous or independent diaphragms
Description: Apparatus directed to utilizing plural contiguous or plural independent diaphragms members.

Patents under this class:

Patent Number Title Of Patent Date Issued
6015005 Respective inflatable arbors for making backdraft cavity in sand core and for forming part of core lift device insertable in cavity Jan. 18, 2000
4592406 Apparatus for compacting foundry sand Jun. 3, 1986
4129165 Preparation of foundry moulds and cores Dec. 12, 1978
4085790 Casting method using cavityless mold Apr. 25, 1978
4068704 Cavityless casting mold Jan. 17, 1978
4067380 Making foundry moulds Jan. 10, 1978
3960198 Reduced pressure mould production method Jun. 1, 1976

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