Winding – tensioning – or guiding – Convolute winding of material – With spool loading or coil removal
Reexamination Certificate
2007-05-29
2007-05-29
Mackey, Patrick (Department: 3654)
Winding, tensioning, or guiding
Convolute winding of material
With spool loading or coil removal
C242S598300
Reexamination Certificate
active
11143436
ABSTRACT:
The present invention discloses a doffing apparatus of a high-speed high-stand fabric take-up device, which is applicable to a fabric take-up device having a higher fabric-storage volume. The doffing apparatus has safety pins and control handles in the side-frame casings of the fabric take-up device. Via shifting the control handles to change the relative positions of the safety pins, the safety pins can be inserted into the rod shafts of the fabric-winding rod so that the coupling between the drive wheels and the rod shafts can be enhanced and the safety of a fabric-winding operation can be promoted. Further, hydraulic cylinders are installed between the side-frame casings of the fabric take-up device and the support brackets sustaining the fabric-winding rod. Via the hydraulic cylinders providing a buffer force for the support brackets, the support brackets can rotate and descend slowly, and the safety of a fabric-doffing operation can be promoted.
REFERENCES:
patent: 5211036 (1993-05-01), Engelfried et al.
patent: 6016987 (2000-01-01), Kohnen
patent: 6276630 (2001-08-01), Mueller et al.
patent: 6637241 (2003-10-01), Wang
patent: 7093466 (2006-08-01), Chen
Birch & Stewart Kolasch & Birch, LLP
Dondero William E.
Mackey Patrick
Pai Lung Machinery Mill Co. Ltd.
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