초록 ▼

A liquid dispenser is described which dispenses liquid through a sidewall of the dispenser. The dispenser includes an air pocket structure in a lower portion adjacent the container base and a dispensing exit at the same level as the air pocket structure. The dispenser can be squeezed to reduce the v

A liquid dispenser is described which dispenses liquid through a sidewall of the dispenser. The dispenser includes an air pocket structure in a lower portion adjacent the container base and a dispensing exit at the same level as the air pocket structure. The dispenser can be squeezed to reduce the volume in the container and cause liquid to be ejected from the dispensing exit. The exit and air pocket structure are proportioned so that on release of pressure, air is sucked-back into the dispenser through the exit and air pocket to remove liquid in the exit and eliminate dripping. The air pocket is also designed to compensate for temperature increases of 30°F. to 40°F. without having product leakage. The dispenser can accommodate liquids of different viscosities and various preferred embodiments are disclosed for different dispenser applications.

대표청구항 ▼

A sidewall dispenser for dispensing liquid from an upright position, said dispenser comprising: (a) container means for receiving a supply of the liquid, said container means having a container base, a container top and at least one sidewall coupling said container base to said container top, defini

A sidewall dispenser for dispensing liquid from an upright position, said dispenser comprising: (a) container means for receiving a supply of the liquid, said container means having a container base, a container top and at least one sidewall coupling said container base to said container top, defining a container interior; (b) an air pocket means located within said container means at a portion adjacent the container base for containing an auxiliary body of the liquid, said air pocket means having a top portion, a bottom portion, a back wall portion spaced from said at least one sidewall, and a front portion, said back wall portion, said top portion and said front wall portion defining an air pocket portion within said air pocket means for retaining a pocket of air above said auxiliary body of said liquid; (c) liquid passageway means connecting the air pocket portion and the interior of said container means said liquid passageway means being located at said bottom portion of said air pocket means; (d) outlet means providing an exit from said air pocket means through a lower portion of said at least one sidewall, said outlet means being coupled to said air pocket means and being at a level above said liquid passageway means, said outlet means terminating in a liquid dispensing exit, said liquid dispensing exit being at substantially the same level as said outlet means; (e) pressure increasing means operable for providing a pressure increase within said container means for causing liquid to be forced out of said dispensing exit; and (f) liquid suck-back control means for sucking back liquid residue remaining in said outlet means and being proportioned with a cross-section sufficient to permit liquid to be forced through the outlet means and to cause an inrush of air as a result of operation of the liquid suck-back control means to positively drive liquid residue into said air pocket means to eliminate dripping from said outlet means.