Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making
Patent
1974-12-04
1976-06-08
Hoag, Willard E.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Composite article making
264 90, 264102, 264220, 264222, B29C 102
Patent
active
039623955
ABSTRACT:
A method is provided of producing a moulding having a configuration corresponding to the surface configuration of a model. The method comprises the steps of bringing a gas-tight evacuatable container having at least one flexible wall portion in a position relative the configuration of the model such that the wall portion can be deformed to the contours of the model without cracking or creasing. A quantity of granular material is then poured into the container to deform the flexible wall portion to the shape of the model by pressure, whereafter at least a partial vacuum is created in the container to cause the granules to form a solid, persistent mass conforming to the shape of the model. The model is then removed while maintaining the condition of at least partial vacuum in the container.
REFERENCES:
patent: 2129240 (1938-09-01), Sanborn
patent: 2326292 (1943-08-01), Dorman
patent: 2472754 (1949-06-01), Mead
patent: 2613398 (1952-10-01), Crowell
patent: 2781273 (1957-02-01), Koch
patent: 3128322 (1964-04-01), Young
patent: 3823208 (1974-07-01), Asbelle et al.
Colvin Arthur B.
Hoag Willard E.
Landstingens Inkopscentral
LandOfFree
Method of producing castings or other mouldings by means of vacu does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of producing castings or other mouldings by means of vacu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing castings or other mouldings by means of vacu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1100190