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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0611471 (1984-05-17) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 8 인용 특허 : 2 |
There is disclosed a piston-cylinder assembly for use as a die spring wherein one end of the cylinder is connected to the source of nitrogen at high pressure to bias the piston outwardly through the opposite open end of the cylinder. The open end of the cylinder is provided with a high pressure seal
In combination a manifold having a pressurized nitrogen chamber for applying a biasing force to a die member that is vertically displaceable in response to vertical reciprocation of the plate of a press in which the die member is mounted, a cylinder mounted on said manifold, said cylinder having a b
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