Dispensing pump having collar-to-body anti-rotation interlock

摘要: Serrations on the upper end of pump body are disposed for interlocking engagement with depending portions collar so that when plunger is rotated in a counterclockwise direction to unlock same from preparation reciprocal operation, held securely by against rotation assure unlocking. The serrations take form plurality equally circumferentially spaced ramps which inclined locking thereby permit yieldably override locked and as unit relative orient spout desired location factory packaging efficiency.