Pump dispenser with slidable trigger

作者: Robert L. Bundschuh

DOI:

关键词: LeakIntegrally closedNozzleStructural engineeringMechanical engineeringInjection molding processEngineering

摘要: A manually-operated pump dispenser for dispensing liquids from a container. Many of the prior art device have numerous parts, are complicated to manufacture, tend leak, and not easily produced by an efficient injection molding process. The present invention overcomes deficiencies providing that has limited number is sample construct operate, resists leakage its parts. (10) comprises housing (20), closure (22) coupling container (28), member (14) having trigger (84) rigidly extending therefrom being slidably received in housing, coiled spring (16) biasing away adjustable nozzle (12) coupled end member. include cooperating slots (86, 89, 90) flanges (120, 121) square portions (71, 115) resisting tendency distort about axis transverse upon engagement (84), thereby maintaining longitudinal alignment. includes inboard valve (18) outboard (26) formed (14). (12), (14), (18), (20) each integrally molded as one-piece. snap-fitted direcly onto (20).

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