| 摘要 |
PCT No. PCT/US84/00839 Sec. 371 Date Jun. 1, 1984 Sec. 102(e) Date Jun. 1, 1984 PCT Filed Jun. 1, 1984.A manually-operated pump dispenser (10) for dispensing liquids from a container (28). The dispenser comprises a housing (20), a closure (22) for coupling the housing to a container (28), a pump member (14) having a trigger (84) rigidly extending therefrom and being slidably received in the housing, a coiled spring (16) for biasing the pump member away from the housing, and an adjustable nozzle (12) coupled to the end of the pump member. The pump member and the housing include cooperating slots (86, 89, 90) and flanges (120, 121) and cooperating square portions (71, 115) for resisting the tendency of the pump member to distort about an axis transverse to the housing upon engagement of the trigger (84), thereby maintaining the pump member and the housing in longitudinal alignment. The dispenser includes an inboard valve member (18) received in the housing and an outboard valve (26) formed by the adjustable nozzle (12) and the pump member (14), without the need of an addditional part. The adjustable nozzle (12), pump member (14), inboard valve member (18), housing (20) and closure (22) are each integrally molded as one-piece. The closure (22) is snap-fitted directly onto the housing (20) without the need of an additional part.
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