Title:
DISPENSER PUMPS
Document Type and Number:
WIPO Patent Application WO1993003857
Kind Code:
A3
Abstract:
PCT No. PCT/GB92/01504 Sec. 371 Date Jun. 28, 1994 Sec. 102(e) Date Jun. 28, 1994 PCT Filed Aug. 14, 1992 PCT Pub. No. WO93/03857 PCT Pub. Date Mar. 4, 1993.A dispenser pump, for fitting to a container neck to dispense liquids in small doses, has a pump body (39) with a fixed discharge nozzle (25) and a reciprocable plunger to pump liquid through a valved inlet (41) of a pump chamber (38) and out through the discharge nozzle. To enable the pump body (39) to be recessed into the container neck, the discharge nozzle (25) near the top of the pump chamber and the outlet near the bottom of the pump chamber are connected by a discharge channel (48) extending up through the pump body alongside the pump chamber (38). A tamper evident locking closure holds the plunger (70) in a particular rotational orientation in which it is locked down. Breaking and removing the tamper evident element simultaneously turns the plunger (70) to free it to rise.
Inventors:
WASS ANTHONY (GB)
Application Number:
PCT/GB1992/001504
Publication Date:
May 13, 1993
Filing Date:
August 14, 1992
Export Citation:
Assignee:
ENGLISH GLASS CO LTD (GB)
International Classes:
B05B11/00; B65D47/34; (IPC1-7): B05B11/00; B65D47/34
Foreign References:
| US4515298A | 1985-05-07 | |||
| US2069076A | 1937-01-26 | |||
| GB1348560A | 1974-03-20 | |||
| US4872596A | 1989-10-10 | |||
| US4524888A | 1985-06-25 | |||
| FR2528011A1 | 1983-12-09 | |||
| EP0401965A2 | 1990-12-12 | |||
| US4496085A | 1985-01-29 |
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