Dispenser for liquid to pasty compositions

Patent metadata

Field	Value
Publication number	US-10618069-B2
Application number	US-201616318506-A
Country	US
Kind code	B2
Filing date	Jul 18, 2016
Priority date	Jul 18, 2016
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

A dispenser for liquid to pasty compositions has a pump chamber receiving a pump piston arranged on a pump piston part, a pump chamber with an inlet valve and an outlet valve, a storage space, and a dispenser head, wherein the dispenser head is vertically movable in order to discharge composition in the usual position of the dispenser. A discharge channel is formed in the dispenser head, and the dispenser head has a head cover and the outlet valve has a clamped, flexible annular part. A projecting structure of the head cover directed towards the pump chamber serves to retain the annular part. The dispenser can also have two storage spaces and two pump chambers and two dispenser heads which can be actuated independently of each other in order to discharge the composition.

First claim

The invention claimed is:

1. A dispenser ( 1 ) for liquid to pasty compositions (M), comprising a pump chamber ( 8 ), accommodating a pump piston ( 32 ) arranged on a pump piston part, said pump chamber ( 8 ) having an inlet valve ( 9 ) and an outlet valve ( 10 ), a storage space ( 4 ) and a dispenser head ( 12 ), wherein the dispenser head ( 12 ) is vertically movable for dispensing the composition (M) in the usual dispenser position, wherein additionally a dispensing channel ( 37 ) is formed in the dispenser head ( 12 ), wherein additionally the dispenser head ( 12 ) has a head cover ( 35 ), and the outlet valve ( 10 ) has a clamped flexible annular part ( 51 ), and further comprising a holder part ( 41 ) on an end of the pump chamber for the outlet valve ( 10 ) and a holder part ( 22 ) on an end of the storage space for the inlet valve ( 9 ), wherein each of the holder parts has a journal ( 31 , 48 ) extending toward the head cover ( 35 ) in the installed state, passing centrally through the annular part ( 51 ) provided in the outlet valve ( 10 ) as well as an annular part ( 30 ) provided in the inlet valve ( 9 ), and wherein the two holder parts ( 22 , 41 ) have an annular space ( 28 , 47 ) that is open toward a bottom in the installed state starting from a holder part cover ( 23 , 42 ) having the journal ( 31 , 48 ).

2. The dispenser according to claim 1 , wherein the annular part ( 51 ) of the outlet valve ( 10 ) is directly opposite the head cover ( 35 ) for a part of its top side and/or the space ( 39 ) between the annular part ( 51 ) and the composition (M) which has passed through the outlet valve ( 10 ) flows through the head cover essentially at a right angle to a flow-through direction in the pump chamber ( 8 ).

3. The dispenser according to claim 1 , wherein the pump chamber ( 8 ) has an upper cylindrical section ( 43 ), which is moved by the dispenser head ( 12 ) and is bordered by a pump chamber cover, having flow-through openings ( 49 ) to the annular part ( 51 ), and wherein an outside diameter of the annular part ( 51 ) exceeds an inside diameter of the cylindrical section ( 43 ) and/or wherein an inner cylindrical section ( 27 , 46 ) forming the annular space ( 28 , 47 ) has locking bead formations ( 50 ) on an inside of the two holder parts ( 22 , 41 ).

4. The dispenser according to claim 1 , wherein an outer cylindrical section ( 24 , 43 ) of the two holder parts ( 22 , 41 ) forming an outside wall of the annular space ( 28 , 47 ) has a horizontally protruding peripheral edge ( 26 , 45 ) on a lower side and/or wherein the two holder parts ( 22 , 41 ) are designed to be identical in shape.

5. The dispenser according to claim 1 , wherein the shape ( 40 ) of the head cover ( 35 ) facing the pump chamber ( 8 ) serves to hold the annular part ( 51 ).

6. A dispenser ( 1 ) for liquid to pasty compositions (M), comprising two storage spaces ( 4 ) and two pump chambers ( 8 ) and two dispenser heads ( 12 ) that are configured to be operated independently of one another for dispensing the composition (M), wherein each dispenser head ( 12 ) has a head cover ( 35 ), an outlet valve ( 10 ), an inlet valve ( 9 ) and a dispenser head wall ( 57 ) which forms an outside surface and is guided in correspondence with and relative to a fixed part ( 55 ) of the dispenser ( 1 ) and is movable relative thereto, wherein the dispenser head wall ( 57 ) of one of the two dispenser heads ( 12 ) is guided and is movable on a portion of its circumference relative to the dispenser head wall ( 57 ) of the other dispenser head ( 12 ), and each dispenser head wall ( 57 ) has a straight wall section ( 58 ) in the area in which it is movable in relation to the fixed part ( 55 ) of the dispenser ( 1 ), the straight wall section having a cross-section that extends in a direction perpendicular to the direction of operation of the dispenser head ( 12 ),
and further comprising a holder part ( 41 ) on an end of each of the pump chambers for the outlet valve ( 10 ) and a holder part ( 22 ) on an end of each of the storage spaces for the inlet valve ( 9 ), wherein each of the holder parts has a journal ( 31 , 48 ) extending toward the head cover ( 35 ) in the installed state, passing centrally through an annular part ( 30 , 51 ) provided in the outlet valve ( 10 ) as well as in the inlet valve ( 9 ), and wherein the two holder parts ( 22 , 41 ) have an annular space ( 28 , 47 ) that is open toward a bottom in the installed state starting from a holder part cover ( 23 , 42 ) having the journal ( 31 , 48 ).

7. The dispenser according to claim 6 , wherein one of the dispenser heads ( 12 ) has a dispensing opening ( 38 ) configured for dispensing the composition (M) in a dispensing direction essentially at a right angle to the direction of operation of the dispenser head ( 12 ) and/or wherein the pump chambers ( 8 ) each have a central axis (x) running in a direction of operation (r) of the dispenser heads ( 12 ), and wherein in a cross section in which the two central axes (x) of the pump chambers ( 8 ) are at the greatest distance from one another, the dispensing openings ( 38 ) projected into this cross section are arranged with an offset to both central axes (x) and with an offset from one another and wherein the offset is in relation to the straight wall section ( 58 ) of the dispenser head wall ( 57 ).

8. A dispenser ( 1 ) for liquid to pasty compositions, comprising two storage spaces ( 4 ) and two pump chambers ( 8 ) and two dispenser heads ( 12 ) that can be operated independently of one another for dispensing the composition (M), wherein a follower piston ( 6 ) which is arranged in each storage space ( 4 ) has a shape ( 52 ) facing the pump chamber ( 8 ) for insertion into a connecting opening of the pump chamber ( 8 ) on the storage space end, wherein a pump chamber ( 8 ) has a central axis (x) running in the direction of operation (r) of the dispenser head ( 12 ) and the shapes ( 52 ) are designed eccentrically with respect to each follower piston ( 6 ) in a cross section in which the two central axes (x) of the pump chambers ( 8 ) area the greatest distance apart from one another.

9. The dispenser according to claim 8 , wherein at least one of the follower pistons ( 6 ) has an outline with a bordering edge that is partially straight and partially curved.

Assignees

• Rpc Bramlage Gmbh

Inventors

• Goettke Sabine

Classifications

• B05B11/007 Primary

  being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves · CPC title

• B05B11/00

  Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use · CPC title

• B05B11/3069

  Operations & Transport · mapped topic

• B05B11/3001

  Operations & Transport · mapped topic

• B05B11/3074

  Operations & Transport · mapped topic