摘要:
A head (10) of a trigger dispenser device includes a bulb (70) having an elastically deformable casing (72) that includes a vent lip (90), molded in one piece. With the casing (72), the vent lip (90) forms a venting valve.
摘要:
A hand-held pump apparatus (1) comprises a peristaltic pump head (2) and a container (20) for a liquid to be dispensed. The pump head (2) has a rotatable peristaltic pump member (6) and a flexible dispensing tube (4) in fluid connection with the inside of the container. A finger-actuated trigger (12) is arranged to drive the peristaltic pump member (6) when actuated so as to cause the peristaltic pump member to turn and pump fluid through the dispensing tube(4). The pump head (2) has a thumb hole (8) disposed through it, the thumb hole being disposed within an area around which the peristaltic pump member turns when actuated.
摘要:
A pump apparatus (1) comprises a pump head (2) and a container (20) for a liquid to be dispensed. The pump head (2) has a flexible dispensing tube (4) in fluid connection with the inside of the container (20). The fluid connection between the dispensing tube (4) and the inside of the container (20) is provided by a supply tube (28) which co-operates with the dispensing tube (4) to provide a non-return valve function. An end (48) of the supply tube (28) is disposed within an end of the dispensing tube (4) and the non-return valve function is provided by a hole (46) through a side wall of the supply tube (28) in a region where the dispensing tube (4) overlaps the supply tube, whereby the dispensing tube (4) provides a seal over the hole (46) to prevent ingress of fluid when the internal pressure is lower than the external pressure. Another aspect of the invention provides a container (20) for use in the pump apparatus.
摘要:
A dispensing mechanism for a liquid container includes a hollow flexible dispensing portion and a dispenser. The dispensing mechanism includes a first lever arranged to pivot about a first pivot axis and a second lever arranged to pivot about a second pivot axis and includes a user operated portion. The first lever includes a first sliding surface and the second lever includes a second sliding surface. The first and second sliding surfaces bear in sliding abutment against each other at an abutment point. The first and second pivot axes are substantially parallel to each other, and a first plane extends through the first and second pivot axes. In a non-actuated position of the dispensing mechanism, the user operated portion of the second lever and the abutment point are arranged on a first side of the first plane. The first sliding surface at least at the abutment point, is convex and the abutment point remains on the first side of the first plane over at least a first ⅔ of a dispensing stroke of the first lever.
摘要:
A manually actuated pump type fluid dispenser has a casing (118) defining an internal cavity and a pump member (101) at least partly located in the cavity. The pump member has a central core (101)a and first and second seal members (101b, 101c) projecting radially outwardly of the core and spaced in an axial direction of the core for contact with the casing to define a pump chamber within the cavity. A region (112) of the core between the first and second seal members is resiliently deformable from an initial resiliently biased configuration in which the first and second seal members are axially spaced by a first amount and an axially compressed configuration in which the seal members are spaced by a second amount which is less than the first amount to reduce the volume of the pump chamber.
摘要:
A connection system between a dispenser head (10) of a liquid and a container (2) of the liquid, comprising a base area (15a) of a frame (12) and a flange (50) screwed tight onto the neck of the container. The free rotation of the frame is prevented by a resistant torque, but the base area (15a) of the frame is made in such a way as to allow the accidental rotation of the head without unscrewing the flange.
摘要:
An apparatus for stonng fluid and dispensing multiple portions of the stored fluid has a container defining a variable-volume storage chamber; a dispensing valve including a valve inlet coupled in fluid communication with the variable-volume storage chamber, and an elastic valve member in fluid communication with the valve inlet and defining a normally-closed valve opening, a manually engageable actuator, and a pump including a compressible member defining a compression chamber coupled in fluid communication with the variable-volume storage chamber Multiple portions of the stored fluid are hermetically sealed in the variable-volume storage chamber The actuator is manually engageable and movable between (ι) a first position wherein the compression chamber defines a first volume, and (ιι) a second position wherein the compression chamber defines a second volume less than the first volume.
摘要:
Cette pompe est destinée à être montée sur un récipient (1) de stockage et de distribution de produit. Elle comprend : - une chambre de pompage de volume variable et - un tube plongeur (5) comportant une première extrémité (6) apte à être insérée dans le récipient pour y prélever le produit et une deuxième extrémité (8) de distribution de produit en sortie de la chambre de pompage, Le tube plongeur est réalisé par extrusion et comporte deux clapets (10, 11), au moins une portion élastiquement déformable (9) s'étendant entre lesdits clapets et délimitant ladite chambre de pompage.
摘要:
A device for dispensing at least one fluid comprises pumping means comprising an elastic deformable membrane (2) having a wavy annular wall (16) for producing a desired stiffness or pliability for said membrane (2). A pumping element (1) comprises a base (4) and said elastic deformable membrane (2).