Metal working – Means to assemble or disassemble – Means to assemble electrical device
Reexamination Certificate
2007-09-11
2007-09-11
Trinh, Minh (Department: 3729)
Metal working
Means to assemble or disassemble
Means to assemble electrical device
C029S734000, C029S735000, C029S596000, C029S252000, C029S253000, C310S214000
Reexamination Certificate
active
10909284
ABSTRACT:
The wedge removal apparatus includes an elongated frame having telescopic elements at opposite ends with cylinders to engage pads along opposite sides of the frame against diametrically opposed wedges of stator core slots. The frame mounts a linear drive assembly carrying a carriage for longitudinal movement relative to the drive assembly and frame. The carriage mounts diametrically opposed heads and a cylinder displaces the heads radially outwardly to engage the wedges and compress underlying ripple springs. Saws carried by the heads cut through the wedges as the carriage is displaced along the frame and without binding because of the force applied to the wedges compressing the ripple springs. The linear drive assembly is rotated to discrete circumferential positions to cut the wedges of additional diametrically opposed slots.
REFERENCES:
patent: 4495692 (1985-01-01), Walker
patent: 5075959 (1991-12-01), Keck et al.
patent: 5414617 (1995-05-01), Pomerleau et al.
patent: 6294855 (2001-09-01), Kelleher
patent: 6526647 (2003-03-01), Hatley et al.
patent: 6584680 (2003-07-01), Iversen et al.
patent: 6708395 (2004-03-01), Pezzano et al.
patent: 2006/0026818 (2006-02-01), Stewart et al.
Applegate Frank Harold
Bousquet Michael John
Hatley Kenneth John
Hatley Richard Michael
McDonnell Sean Michael
General Electric Company
Nixon & Vanderhye PC
Trinh Minh
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