Moulding device and method of generating a cast of an inner...

Details Moulding device and method of generating a cast of an inner... Moulding device and method of generating a cast of an inner...

2011-08-16

2011-08-16

Gupta, Yogendra N (Department: 1744)

Plastic article or earthenware shaping or treating: apparatus

Press forming apparatus having opposed press members

Male shaping member and female mold

C425S422000, C425S457000, C425S460000

Reexamination Certificate

active

07997892

ABSTRACT:
This invention is related to a moulding device (90; 92; 95; 98; 100; 110) arranged to be positioned inside a tubular member (17). The moulding device (90; 92; 95; 98; 100; 110) comprises a second closing part (1), a shaft (6) loosely connected to the second closing part (1) and able to glide snugly through an opening in a first closing part (7, 8). When inserted into the tubular member (17), the moulding device (90; 92; 95; 98; 100; 110) defines a chamber together with the inner surfaces of thereof. To form a cast, this chamber is filled with moulding material which thereafter cures. To remove the cast and the moulding device (90; 92; 95; 98; 100; 110) from the tubular member, a drawing force is applied to the first closing part (7, 8), which provides a pulling out of the rest of the moulding device (90; 92; 95; 98; 100; 110) and the cast.

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