Spray package and process for producing the same

Details Spray package and process for producing the same Spray package and process for producing the same

1996-03-13

1998-07-07

Derakshani, Philippe

Dispensing

With discharge assistant

Container with follower

B67D 542

Patent

active

057755493

ABSTRACT:
A package (1) in the form of a spray container in which slides a piston. There is a dispensing nozzle at one end of the container and a liquid to be dispensed between the piston and the nozzle. A compressed gas occupies the container on the other side of the piston. The seal between the piston and the internal side wall of the container is ensured by shallow annular grooves in the internal side wall, having an interval less than 1,000 .mu.m and a depth no greater than 100 .mu.m.

REFERENCES:
patent: 112770 (1871-03-01), Blessing
patent: 3273762 (1966-09-01), O'Neill, Jr.
patent: 3381863 (1968-05-01), Towns
patent: 3915352 (1975-10-01), Scheindel
patent: 5042696 (1991-08-01), Williams
patent: 5056690 (1991-10-01), Ichihara et al.

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