초록 ▼

A dispenser for pasty compositions has a delivery tube (3) with lateral passage openings (10) for a second component of a pasty composition developed in the delivery tube (3), and an elastically reformable pump element. The delivery tube (3) is closed by a valve body (19). A piston (33) is moveable

A dispenser for pasty compositions has a delivery tube (3) with lateral passage openings (10) for a second component of a pasty composition developed in the delivery tube (3), and an elastically reformable pump element. The delivery tube (3) is closed by a valve body (19). A piston (33) is moveable through a housing of the dispenser in emptying direction upon reforming of the pump element. The lateral passage openings (10) for the passage of the second component can be closed by the same valve body (19), and the valve body is guided by means of a shaft in the delivery tube (3). In order to obtain in a manner simple to manufacture, a dispenser for pasty composition for possible delivery of pasty composition formed of several components, particularly an esthetically pleasing stripe formation, a stepwise widening of the delivery tube cross section which is developed in the direction of flow at the height of the upper valve-disk closure. Guide ribs for mating with the valve-disk.

대표청구항 ▼

A dispenser for pasty composition, comprising: a housing and a moveable piston within the housing defining a chamber for enclosing a first component of the pasty composition; a delivery tube and a valve body interposed in the delivery tube, the delivery tube communicating with said chamber for dispe

A dispenser for pasty composition, comprising: a housing and a moveable piston within the housing defining a chamber for enclosing a first component of the pasty composition; a delivery tube and a valve body interposed in the delivery tube, the delivery tube communicating with said chamber for dispensing the first component of the pasty composition, there being an annular space encircling said tube and being enclosed by a forward portion of said housing adjacent said valve body for containing a second component of the pasty composition; and wherein there are lateral passage openings communicating with said annular space for dispensing the second component of pasty composition, the lateral passage openings being developed in the delivery tube; the dispenser further comprises an elastically reformable pump element, the delivery tube being closed by the valve body, the piston being moveable through the housing in emptying direction upon a reforming of the pump element, the lateral passage openings also being closed to passage of the second component by said valve body; the dispenser comprises a shaft for guiding the valve body in the delivery tube, a portion of the delivery tube being configured as a valve seat for receiving the valve body; the valve body includes a valve disk; there are guide ribs disposed along an inner surface of the delivery tube; and there is a step-like widening of the delivery tube cross section which is developed in the direction of flow at the height of an upper valve-disk closure, said guide ribs engaging with the valve disk, the guide ribs being disposed in the widened region of the delivery tube.