Sealed lipstick container

Details Sealed lipstick container Sealed lipstick container

1997-07-25

1999-01-26

Walczak, David J.

Coating implements with material supply

Solid material for rubbing contact or support therefor

Including means to advance material

401 98, A45D 4004

Patent

active

058631445

ABSTRACT:
A lipstick container cover has a cup-shaped insert which sealingly telescopes over a sealed base assembly. The cover insert has an inward peripheral rib which makes line sealing contact with the sleeve. A bump formed on the sleeve raises the rib to vent pressure caused either by pushing the cover on the lipstick container or pressure build-up due to vaporizing solvent after the cover is fully installed. Venting the pressure in the container avoids the lifting off of the cover after installation. Otherwise such lifting unseals the container.

REFERENCES:
patent: 1966884 (1934-07-01), Coe
patent: 2222415 (1940-11-01), Landwehr
patent: 2256644 (1941-09-01), Houlihan
patent: 2349800 (1944-05-01), Lee
patent: 3091329 (1963-05-01), Levine
patent: 4603989 (1986-08-01), Ackerman et al.
patent: 5221153 (1993-06-01), Spatz
patent: 5234275 (1993-08-01), Gueret
patent: 5342134 (1994-08-01), Lombardi et al.

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