Metal deforming – By use of closed-die and coacting work-forcer – With stripping or ejecting from tool
Reexamination Certificate
2007-08-14
2007-08-14
Suhol, Dmitry (Department: 3725)
Metal deforming
By use of closed-die and coacting work-forcer
With stripping or ejecting from tool
C072S427000
Reexamination Certificate
active
10495026
ABSTRACT:
The invention relates to a so-called spring cushion (5), for the ejection of moulded pieces (4) from a moulding tool (3), with a plunger (6), moving in a guide tube (9) within the moulding tool and loaded in the ejection direction (14) by means of a spring (15). According to the invention, the spring (15) is embodied as a draw spring, in particular as a spiral draw spring. Considerably longer service life can be achieved as draw springs do not have radial deflections on loading.
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Lüthi Rudolf
Meier Daniel
Adval Tech HOLDING AG
Sughrue & Mion, PLLC
Suhol Dmitry
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