초록 ▼

A manually operable fluid dispenser is described in which the pump cylinder (12) is a separate part plugged onto a dispenser body (2) and secured against retraction by stop and counter stop members (18, 10). The pump cylinder (12) is engaging a counter member (9) of the dispenser body (2) and this c

A manually operable fluid dispenser is described in which the pump cylinder (12) is a separate part plugged onto a dispenser body (2) and secured against retraction by stop and counter stop members (18, 10). The pump cylinder (12) is engaging a counter member (9) of the dispenser body (2) and this counter member (9) is surrounded at a distance by an additional casing jacket (5) entirely receiving the pump cylinder (12) in the initial position of the pump piston (20). Although a resiliently opening and closing discharge valve is conceivable a discharge closure device can be provided which, upon initially operating the discharge pump, irreversibly opens. An expel member (34) immersed into the hollow pump piston (20) is provided in the pump chamber (14) in such a way that it immerses at the beginning of the pump stroke. The discharge nozzle is provided with a nozzle cap receiving a separate nozzle mandrel and this nozzle mandrel is inserted into a discharge head, thereby engaging directly into a mounting opening of this discharge head.

대표청구항 ▼

A manually operable fluid dispenser, comprising: a thrust piston pump having a pump cylinder and a pump piston displaceably guided in said pump cylinder in a stroke direction over an axial pump stroke between an initial position and a limited end position at the end of the pump stroke, said pump cyl

A manually operable fluid dispenser, comprising: a thrust piston pump having a pump cylinder and a pump piston displaceably guided in said pump cylinder in a stroke direction over an axial pump stroke between an initial position and a limited end position at the end of the pump stroke, said pump cylinder and a front end of said pump piston defining a pump chamber; a discharge duct leading from said pump chamber to a discharge nozzle; a dispenser body bearing said pump piston and said pump cylinder, said dispenser body providing a handle for displacing the pump piston in said pump cylinder, said pump cylinder and an inner sleeve of said dispenser body displaceably engaging with one another, wherein said inner sleeve depends from said handle, a casing jacket depending from an outermost portion of said handle and surrounding said inner sleeve and said pump cylinder, said casing jacket having an open end on one side and said inner sleeve depending from an inside of said casing jacket and having a free end for receiving said pump cylinder, said casing jacket and pump cylinder defining longitudinal extensions along said stroke direction such that in the initial position of said pump piston, said pump cylinder is located within said jacket casing, the jacket casing defining a supporting base permitting the fluid dispenser to be supported by said supporting base on a surface without the cylinder being pressed upwardly by the surface.