Invention Grant
US07637396B2 Trigger sprayer piston rod with integral spring and ball and socket piston connection 有权
触发式喷雾器活塞杆具有一体的弹簧和球窝活塞连接

Trigger sprayer piston rod with integral spring and ball and socket piston connection
Abstract:
A manually operated trigger sprayer is constructed with a reduced number of parts and in a novel manner in which the conventional metal coil spring is replaced with a pair of plastic bowed springs that are integral with the piston rod and the pump piston is connected to the piston rod by a ball and socket connection.
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