Hill, Van Santen, Steadman & Simpson
Lockable slider for a slide fastener
 A lockable slider for a slide fastener is disclosed which essentially comprises a slider body having a conneting neck or diamond and including an upper and a lower wing member defining therebetween a guide channel for the passage of slide fastener stringers and a locking member resiliently supported within the slider body. A switching means including a cam is provided for alternately locking and unlocking the slider with respect to the slide fastener, the cam being engageable with the locking member to move its locking prong portion away from the guide channel. 
Yoshida Kogyo K.K.
A Y Y
A44B Y10T Y10T
inventional additional additional
Hiroshi
Mizuno