Actuating device for use in combination with a pressurized packaging

Patent metadata

Field	Value
Publication number	US-12312152-B2
Application number	US-202118251491-A
Country	US
Kind code	B2
Filing date	Nov 26, 2021
Priority date	Nov 26, 2020
Publication date	May 27, 2025
Grant date	May 27, 2025

Abstract

A novel actuating device ( 1 ) is described for use in combination with a pressurized packaging ( 6 ), which comprises an actuator head ( 2 ) having a discharge orifice ( 11 ), a discharge duct ( 3 ) which connects the discharge orifice with an entry port ( 4 ). The actuating device is provided for actuating a resilient biased valve means for dispensing the fluid from the fluid container ( 6 ) and further comprises an open piston ( 16 ) having at least an upper sealing lip ( 20 ) which is sealing towards an inner wall of the discharge duct ( 3 ). An inner rod ( 25 ) is attached to the open piston ( 16 ) having a free end ( 26; 53 ) for closing the discharge orifice ( 11 ). The open piston ( 16 ) is biased towards the discharge opening: The actuator head ( 2 ) comprises a lever ( 31 ) for actuating the open piston ( 16 ) towards the entry port of the discharge duct ( 3 ).

First claim

The invention claimed is:

1. Actuating device for use in combination with a packaging or fluid container pressurized by a propellant gas comprising an actuator head having a discharge orifice, a discharge duct in the actuator head which discharge duct connects the discharge orifice with an entry port, remote from the orifice, which actuating device is provided for actuating a resilient biased valve means for dispensing the fluid from the fluid container by the propellant gas, characterized in that the actuating device comprises an open piston having an open front end, an open rear end and at least an upper sealing lip at the open rear end which is sealing towards an inner wall of the discharge duct, an inner rod attached to the open piston, which inner rod having a free end, which free end is closing the discharge orifice from the inside of the discharge duct, wherein the open piston is biased towards the discharge opening, the actuator head comprising a lever or a push button for actuating the open piston to release the discharge orifice, wherein the discharge duct is curved and the inner rod is made from a flexible plastic material, in order to adapt to the curved discharge duct.

2. Actuating device according to claim 1 , characterized in that the open piston has a larger diameter at the front end as the diameter at the rear end, such that an overpressure of the propellant gas in the packaging urges the inner rod towards the discharge orifice, thus providing the resilient biased valve means.

3. Actuating device according to claim 2 , characterized in that the actuating device comprises an upper container closure with an outer upstanding rim and an inner central tube for closing the packaging or fluid container.

4. Actuating device according to claim 3 , characterized in that additional resilient means are provided between the upper container closure and an outstanding flange of the open piston for supporting the biasing force on the open piston.

5. Actuating device according to claim 4 , characterized in that the additional resilient means are bellows.

6. Actuating device according to claim 4 , characterized in that the additional resilient means is a spring made of metal or plastic which is provided between the upper container closure and a lower end of the open piston.

7. Actuating device according to claim 4 , characterized in that the push button has an inner cam which is actuating the outstanding flange of the open piston.

8. Actuating device according to claim 1 , characterized in that the open piston is provided to actuate a straight actuating valve with a valve mechanism biased by a metal spring of the packaging fluid container.

9. Actuating device according to claim 1 , characterized in that the elements thereof are made from a plastic material.

10. Actuating device according to claim 9 , characterized in that the inner wall of the discharge duct is provided with longitudinal guiding ribs to prevent against twisting or buckling of the inner rod.

11. Actuating device according to claim 10 , characterized in that the inner rod is provided with guiding elements which cooperate with the longitudinal guiding ribs.

12. Actuating device according to claim 1 , characterized that the open piston having two opposite upstanding ribs for actuating by the lever, whereas the open piston with the inner rod, the free end and the upstanding ribs is made of one piece from a plastic material.

13. Actuating device according to claim 1 , characterized in that the discharge orifice is provided by a circular rim of the discharge duct and the rim has a thickness between 0 and 2.0 mm to reduce the amount of residual product outside the discharge orifice.

Assignees

• Colgate Palmolive Co

Inventors

• Kloebbe Jürgen

Classifications

• B65D83/64

  by pistons · CPC title

• B65D83/206 Primary

  comprising cantilevered actuating elements, e.g. levers pivoting about living hinges · CPC title

• B05B11/1053

  combined with means, other than pressure, for automatically opening a valve during actuation; combined with means for automatically removing closures or covers from the discharge nozzle during actuation · CPC title

• B65D83/753 Primary

  characterised by details or accessories associated with outlets · CPC title

• B61B10/02

  with suspended vehicles · CPC title