| 摘要 |
PCT No. PCT/EP95/04343 Sec. 371 Date Jul. 2, 1997 Sec. 102(e) Date Jul. 2, 1997 PCT Filed Nov. 6, 1995 PCT Pub. No. WO96/14938 PCT Pub. Date May 23, 1996A trigger pump dispenser has a unitary valve member (15) which is push-fitted into the back of the pump chamber (38). The valve member is moulded from a thermoplastic elastomer and has an inner dome (116) arranged to form the one-way valve in the inlet flow path, and an external skirt (112) arranged to form the one-way valve in the outlet flow path. Apertures (120) formed around the dome form a part of both flow paths. The trigger (17) of the dispenser is secured to the piston (16) by an integral extension (54) which is attached by a living hinge (52), and the spring (18) for the trigger is generally L-shaped, its lower arm being secured to the dispenser body (13) and its upper arm being flexible and resilient and having its free end snap-engaged in a socket formed in the back of the trigger.
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