Press and mould for precast cementitious article

Details Press and mould for precast cementitious article Press and mould for precast cementitious article

2006-04-04

2006-04-04

Smith, Duane (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Opposed registering coacting female molds

C425S353000, C425S412000, C425SDIG044, C264S313000

Reexamination Certificate

active

07021916

ABSTRACT:
Disclosed herein is a press and mould apparatus for moulding cementitious articles comprising a precast mould and a press head having a pressing surface and being moveable between precast mould engaging and disengaging positions, wherein the pressing surface comprises a coating of deformable and resilient material such as urethane. Also disclosed is a process for moulding building blocks. This process comprising filling a precast mould with material, such as concrete, this is to be pressed; and pressing the material with a pressing surface comprising a deformable and resilient coating so as to solidify the material into a green shape ready for cutting.

REFERENCES:
patent: 4266921 (1981-05-01), Murray
patent: 5330339 (1994-07-01), Gatarz et al.
patent: 5415828 (1995-05-01), Watanabe et al.
patent: 5935617 (1999-08-01), Uchida et al.
patent: 6638460 (2003-10-01), Wahl

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