Back to results
US 4,363,560 AGranted
Propel-repel solid stick dispenser
OwnerCharles J. Gentileinventor
Life of this patent
Estimating the term…
Abstract
A propel-repel solid stick dispenser for deodorants, anti-perspirants and other cosmetics, medicaments or the like in which the external container is closed, preferably by use of an integral, one-piece body, except for the opening for application, which opening may be sealed by means of a detachable cap thereby securing the dispensable material against air deterioration or evaporation and including means for advancing and retracting the stick of dispensable material by one-handed fingertip rotational manipulation by the hand holding the dispenser.
Claims10
A propel-repel solid-stick dispenser comprising:
- (a) an external container open at one end and closed at the opposite end;
- (b) a threaded transport shaft mounted in the container for rotation therewith;
- (c) a cartridge mounted within the container, the cartridge being open at the end most proximal to the open end of the container and rotatable independently of the container and the shaft;
- (d) a piston threadably mounted on the shaft, the piston being translationally moveable along the shaft in response to relative rotational movement between the piston and the shaft;
- (e) means for rotating the piston in response to rotation of the cartridge;
- (f) means for generating relative rotational movement between the container and the cartridge, whereby the open end of the cartridge extends beyond the open end of the container thereby providing said means for simultaneously generating relative rotational movement between the container and the cartridge and between the piston and the shaft;
- (g) closure means detachably engaged at the open end of the container;
- (h) a bearing surface at the top of the cartridge tapering inwardly toward the open end thereof, and
- (i) a continuous resiliently outwardly expandable rib in the closure means engageable with the bearing surface at the open end of the cartridge.
6 more elements
Dependencies are inferred from the claim text.