Metal working – Method of mechanical manufacture – Prime mover or fluid pump making
Reexamination Certificate
2005-11-08
2010-10-12
Chang, Rick K (Department: 3726)
Metal working
Method of mechanical manufacture
Prime mover or fluid pump making
C029S527500, C192S01200R, C192S01200R, C192S09300C, C192S054500
Reexamination Certificate
active
07810236
ABSTRACT:
A method for manufacturing a power transmitting apparatus by molding both the pressure-contact assist cam and back-torque limiting cam even though either one of the pressure-contact assist cam and back-torque limiting cam is molded as a reverse-draft surface. The power transmitting apparatus has a clutch housing (2) and a clutch member (4) connected to an output member (3). A plurality of driven clutch plates (7) alternately is arranged between the driving clutch plates (6) of the clutch housing. The pressure plate (5) and the clutch member (4) are, respectively, formed with through windows (5c) and (4c) at positions corresponding to the pressure-contact assist cams (4aa) and (5ba) and the back-torque limiting cams (4ab) and (5bb) to form reverse-draft surfaces of the pressure-contact assist cams (4aa) and (5ba) and the back-torque limiting cams (4ab) and (5bb) by inserting pin-shaped cores into the windows (5c) and (4c).
REFERENCES:
patent: 1505538 (1924-08-01), Bull
patent: 2351996 (1944-06-01), Morgan
patent: 1 058 018 (2000-12-01), None
Itou Shunichi
Kashiwagi Satoru
Kataoka Makoto
Chang Rick K
Harness & Dickey & Pierce P.L.C.
Kabushiki Kaisha F.C.C.
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