초록 ▼

A dispenser for substances that are at least partially fluid includes an outer casing (1) fitted with a pump (4) having a tubular body (5). The tubular body is provided with a vent (5e) that is closed when a piston of the pump is in a rest position. A flexible bag (3) is connected to the pump beneat

A dispenser for substances that are at least partially fluid includes an outer casing (1) fitted with a pump (4) having a tubular body (5). The tubular body is provided with a vent (5e) that is closed when a piston of the pump is in a rest position. A flexible bag (3) is connected to the pump beneath the vent by means of a bushing (2) that forms a ring which has a cylindrical skirt (2b) connected to a top band (2a) and forms a flange (2c, 2e) for centering and support purposes against the outer casing. A counter-flange (7a) connects the pump to the outer casing in a sealed manner. Communication (2f) is established between a lower intermediate space (1c) surrounding the bag and an upper intermediate space (1b) that is associated with the vent. Conservation of the substance is improved and filling and purging air are simplified.

대표청구항 ▼

[ I claim:] [1.] A dispenser for a fluid-like substance comprising:an outer casing having an outlet opening;a pump including a piston, a tubular body and an axial nozzle, activation of the piston being carried out by displacing the nozzle;said pump further including a vent normally closed when the p

[ I claim:] [1.] A dispenser for a fluid-like substance comprising:an outer casing having an outlet opening;a pump including a piston, a tubular body and an axial nozzle, activation of the piston being carried out by displacing the nozzle;said pump further including a vent normally closed when the piston is in its rest position, and a counter flange sealingly connecting the pump to the casing at the casing outlet opening;a bushing extending into the casing and comprising a sealing connection ring having a lower cylindrical skirt portion and an upper band portion connected to the skirt portion;said bushing also including a ferrule portion extending above the band portion and including an enlarged upper flange portion, said ferrule portion extending through said casing outlet and said flange portion arranged to support and center said bushing in said outlet;a flexible bag for containing fluid-like substance within the casing and including an outlet sealingly attached to the skirt portion;said pump tubular body including a substance flow conduit extending into said upper band portion through said ferrule portion and being sealingly connected to said band portion below said vent;a lower intermediate space between said bag and interior of the casing, an upper intermediate space between the pump body and the ferrule, said upper intermediate space being in communication with said vent, and a passage providing communication between said lower intermediate space and said upper intermediate space.