Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means to close mold
Reexamination Certificate
2005-07-12
2005-07-12
Mackey, James P. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With means to close mold
C074S089230, C100S286000, C425S451600
Reexamination Certificate
active
06916169
ABSTRACT:
A drive apparatus for an injection molding machine comprises a drive means, a rotation transmission shaft, a screw shaft, a nut and a driven member. The rotation transmission shaft is connected to the drive means and rotated by the drive means. The screw shaft is rectilinearly movably disposed, surrounds the rotation transmission shaft, and engages with an outer cylindrical surface of the rotation transmission shaft on an inner cylindrical surface of the screw shaft. The nut is threadably engaged with the screw shaft. The driven member is disposed on the screw shaft. In this apparatus, the rotation generated by the drive means is transmitted to the screw shaft and the screw shaft is advanced and retracted not to rotate the nut. Therefore, the inertia of the drive apparatus becomes small and the response of mold opening/closing becomes rapid when the drive mean is driven.
REFERENCES:
patent: 3908968 (1975-09-01), Bielfeldt et al.
patent: 4540359 (1985-09-01), Yamazaki
patent: 5306136 (1994-04-01), Oomori et al.
patent: 5540495 (1996-07-01), Pickel
patent: 5645868 (1997-07-01), Reinhart
patent: 5879597 (1999-03-01), Urbanek
patent: 6364650 (2002-04-01), Emoto
patent: 0 965 32 (1999-12-01), None
patent: 62-128722 (1987-06-01), None
patent: 04-113821 (1992-04-01), None
Patent Abstracts of Japan, vol. 15, No. 267, Jul. 8, 1991 & JP 03 090327 A.
Mackey James P.
Squire Sanders & Dempsey L.L.P.
Sumitomo Heavy Industrie's, Ltd.
LandOfFree
Drive apparatus for injection molding machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Drive apparatus for injection molding machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drive apparatus for injection molding machine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3404870