Rotary shafts – gudgeons – housings – and flexible couplings for ro – Housing – Flexible housing
Reexamination Certificate
2006-03-09
2008-11-04
Binda, Greg (Department: 3679)
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Housing
Flexible housing
Reexamination Certificate
active
07445557
ABSTRACT:
A smaller cylindrical portion having a clamp groove formed on an outer peripheral surface thereof has a cylindrical surface portion which extends straight in an axial direction, an inclined surface portion which extends, while being inclined, radially outwardly from an end portion of the cylindrical surface portion and a vertical wall surface portion which extends straight radially outwardly from an end portion of the inclined surface portion, the cylindrical surface portion, the inclined surface portion and the vertical wall surface portion being formed continuously sequentially in that order from a side wall surface of the clamp groove. A stress concentration on a specific location on the smaller cylindrical portion can be suppressed by virtue of the stress alleviating action of these cylindrical surface portion, the inclined surface portion and the vertical wall surface portion.
REFERENCES:
patent: 4211423 (1980-07-01), Resech
patent: 4718680 (1988-01-01), Halconruy et al.
patent: 5311912 (1994-05-01), Hayward
patent: 2006/0066062 (2006-03-01), Sugiyama
patent: 2 414 144 (1979-09-01), None
patent: A-2002-295509 (2002-10-01), None
patent: A-2003-301856 (2003-10-01), None
patent: A-2003-329136 (2003-11-01), None
patent: A-2005-106294 (2005-04-01), None
Chinese Office Action issued on Jun. 8, 2007 in corresponding Chinese patent application No. 200610065739.6 (and English translation).
Mase Yoshiaki
Toriumi Mayuki
Binda Greg
Posz Law Group , PLC
Toyoda Gosei Co,., Ltd.
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