EP0286608A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A dispenser of paste-like products, in particular toothpaste
Assignee: Guala SpA
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Filing: 1988-03-31
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Granted: —
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Expires: 2008-03-31
Abstract
Abstract A dispenser of paste-like products, in particular toothpaste, is composed of a cylindrical container (2) having a head (4), a bottom wall (5) slidable tightly therein one way toward the head (4), a pumping membrane (10) mounted inside it close to the head (4), a delivery conduit (27) attached rigidly to the head (4) and associated, through a part (30) thereof, with a sleeve (9) formed in one piece with the pumping membrane (10), said sleeve being therefore slidable tightly on the delivery conduit (30), an actuating lever (19) pivoted to the head (4) for movement between a home position and a toothpaste dispensing end position, said lever (19) acting on the sleeve (9) to operate the pumping membrane (10), a shutter (34) connected to the sleeve (9) by means of a plurality of small bridges (35) held circumferentially apart from one another, said shutter (34) being operative to close and open the delivery conduit at the inlet (28) mouth thereof. Thus, the advantage is afforded that, on filling the container (2), the paste will not leak into the delivery conduit (27) where it would be apt to harden as a result of some air leaking into it from the outside, and hinder the operation of the dispenser on the occasion of its initial use.
Inventors
- 👤 Piero Battegazzore
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 12:58
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/76; B65D83/765; B05; B05B; B05B11/00; B05B11/01; B05B11/10; B05B11/1028; B05B11/1029; B05B11/103; B05B11/1042; B05B11/1052; B05B11/1053; B05B11/1054
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
283 words
A dispenser of paste-like products, in particular toothpaste, comprising a cylindrical container having a vertical longitudinal axis, a head located at the container upper end, a bottom wall mounted for tight sliding movement inside the container in one direction toward the head, a pumping member mounted on the container close against the head, a sleeve having a free end and an opposed end associated with the pumping member, an actuating lever for moving the pumping member, trunnions protruding from the lever along a perpendicular pivot axis to the container longitudinal axis, said pivot axis being fixed relatively to the container, said lever being movable angularly about said pivot axis from a home position to a paste delivery position, trunnion bearing seats formed in the head for accommodating said trunnions, a delivery conduit having an inlet mouth and an outlet mouth and being mounted to the head, a covering eave formed integrally with said actuating lever and extending to cover the outlet mouth when the lever is at its home position, said actuating lever being provided with a cam profile for engagement in said free end of the sleeve, said tubular delivery conduit being connected to said sleeve by its inlet-side end for sliding movement in an axial direction, said pumping member comprising a flexible annular membrane having an outward edge held axially to the cylindrical container and an inward edge connected to said sleeve, characterized in that said pumping member (10) is provided with a shutter (34) to close the inlet mouth (28) of said delivery conduit (27) when the actuating lever (19) is at said home position and to open it when said actuating lever (19) is removed from said home position.
Claim 2
Dependent Claim
283 words
A dispenser of paste-like products, in particular toothpaste, comprising a cylindrical container having a vertical longitudinal axis, a head located at the container upper end, a bottom wall mounted for tight sliding movement inside the container in one direction toward the head, a pumping member mounted on the container close against the head, a sleeve having a free end and an opposed end associated with the pumping member, an actuating lever for moving the pumping member, trunnions protruding from the lever along a perpendicular pivot axis to the container longitudinal axis, said pivot axis being fixed relatively to the container, said lever being movable angularly about said pivot axis from a home position to a paste delivery position, trunnion bearing seats formed in the head for accommodating said trunnions, a delivery conduit having an inlet mouth and an outlet mouth and being mounted to the head, a covering eave formed integrally with said actuating lever and extending to cover the outlet mouth when the lever is at its home position, said actuating lever being provided with a cam profile for engagement in said free end of the sleeve, said tubular delivery conduit being connected to said sleeve by its inlet-side end for sliding movement in an axial direction, said pumping member comprising a flexible annular membrane having an outward edge held axially to the cylindrical container and an inward edge connected to said sleeve, characterized in that said pumping member (10) is provided with a shutter (34) to close the inlet mouth (28) of said delivery conduit (27) when the actuating lever (19) is at said home position and to open it when said actuating lever (19) is removed from said home position.
Claim 3
Dependent Claim
59 words
A dispenser according to Claim 1, characterized in that the sleeve (9) associated with said pumping member (10) has an annular groove (9a) formed in its thickness and open to the bottom of the container (2), said groove (9a) defining a concentrical tubular wall (9b) facing said delivery conduit (27) with a free edge facing the container (2) bottom.
Claim 4
Dependent Claim
38 words
A dispenser according to Claim 2, characterized in that said tubular wall (9b) has annular ribs (32) arranged to face said delivery conduit (27,30) for providing a tight sliding contact between the conduit (27,30) and the sleeve (9).
Claim 5
Dependent Claim
44 words
A dispenser according to Claims 1 to 3, characterized in that said shutter (34) is connected to the free edge of said concentrical tubular wall (9b) of the sleeve by means of a plurality of bridges (35) spaced apart to define passage ports (36).
Claim 6
Dependent Claim
45 words
A dispenser according to Claims 1 to 4, characterized in that said shutter (34) comprises a cylindrical element (37) coaxial with the inlet mouth (28) of the delivery conduit (27) and having an outside diameter selected for removably plug-like fitting into said inlet mouth (28).
Claim 7
Dependent Claim
76 words
A dispenser according to Claims 1 to 4, characterized in that said shutter (34) comprises a plate-like element having a flat annular rim (39) facing the inlet mouth (28) of said delivery conduit (27) for face engagement with the edge (28a) thereof when in the closed position, and inclined ribs (40) formed in its center area (38) concentrical with said inlet mouth (28) and arranged to face the latter for centering during the closing approach movement.
Claim 8
Dependent Claim
77 words
A dispenser according to Claims 1 to 6, characterized in that it includes a tubular element (41) having one end inserted removably into said annular groove (9a) in the sleeve (9) of the pumping member (10) and the opposed end protruding free into the container (2) concentrically with said shutter (34), said tubular element (41) being provided with a plurality of spaced-apart radial openings (45) extending longitudinally across a middle area (43) of the longitudinal extent thereof.
Claim 9
Dependent Claim
91 words
A dispenser according to Claim 7, characterized in that said tubular element (41) comprises a flared first section (42), engaged frictionally within said annular groove (9a) in the sleeve (9), a second, also flared section (43) having larger diameter and flare angle than the first section (42), and a third, also flared section (44), facing the inner side of the container (2) and having a larger diameter than the first and second sections and a flare angle which is substantially the same as the flare angle of the first section (42).
Claim 10
Dependent Claim
31 words
A dispenser according to Claims 7 and 8, characterized in that the first section (42) of said tubular element (41) has longitudinal ribs (46) formed radially on the inner surface thereof.
References Cited (Backward Citations)
No citation records indexed.
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