Device with replaceable container for atomizing liquid

Claim 1

A device for emitting a finely divided stream of liquid into the atmosphere from a container, comprising: a support to be rigidly attached to a movable element; a housing releasably received on said support; a pump housing in said housing having a recess and bore therein; a container in said housing for liquid to be dispensed; a nipple with a first non-return valve and suction tube at the top of the container, with the suction tube extending into the container, said nipple fitting into the recess of the pump housing; a pump piston inside the pump housing bore, said piston having a piston part extending outside the pump housing; a fixed abutment cooperating with said piston part such that upon engagement of said piston part with said abutment the piston performs a pressure stroke against the pressure of a spring and during movement away from the abutment performs a return or suction stroke; wherein said pump housing communicates with the pump piston on one side and with the first non-return valve and suction tube on the other side; a pressure channel with a second non-return valve leading to an atomizer, said pressure channel communicating with the pump housing; wherein the container, nipple with suction tube and first non-return valve form a replaceable unit, the pump housing recess is adapted to slidably and sealingly receive the nipple and wherein the pump housing forms a unit with the housing; and wherein said support is a backing plate including pins and said container includes cavities, with said pins projecting into said cavities to hold the container in the correct position.

Claim 2

A device for emitting a finely divided stream of liquid into the atmosphere from a container, comprising: a support to be rigidly attached to a movable element; a housing releasably received on said support; a pump housing in said housing having a recess and bore therein; a container in said housing for liquid to be dispensed; a nipple with a first non-return valve and suction tube at the top of the container, with the suction tube extending into the container, said nipple fitting into the recess of the pump housing; a pump piston inside the pump housing bore, said piston having a piston part extending outside the pump housing; a fixed abutment cooperating with said piston part such that upon engagement of said piston part with said abutment the piston performs a pressure stroke against the pressure of a spring and during movement away from the abutment performs a return or suction stroke; wherein said pump housing communicates with the pump piston on one side and with the first non-return valve and suction tube on the other side; a pressure channel with a second non-return valve leading to an atomizer, said pressure channel communicating with the pump housing; wherein the container, nipple with suction tube and first non-return valve form a replaceable unit, the pump housing recess is adapted to slidably and sealingly receive the nipple and wherein the pump housing forms a unit with the housing; and wherein said support is a backing plate including pins and said container includes cavities, with said pins projecting into said cavities to hold the container in the correct position.

Claim 3

A device for emitting a finely divided stream of liquid into the atmosphere from a container, comprising: a support to be rigidly attached to a movable element; a housing releasably received on said support; a pump housing in said housing having a recess and bore therein; a container in said housing for liquid to be dispensed; a nipple with a first non-return valve and suction tube at the top of the container, with the suction tube extending into the container, said nipple fitting into the recess of the pump housing; a pump piston inside the pump housing bore, said piston having a piston part extending outside the pump housing; a fixed abutment cooperating with said piston part such that upon engagement of said piston part with said abutment the piston performs a pressure stroke against the pressure of a spring and during movement away from the abutment performs a return or suction stroke; wherein said pump housing communicates with the pump piston on one side and with the first non-return valve and suction tube on the other side; a pressure channel with a second non-return valve leading to an atomizer, said pressure channel communicating with the pump housing; wherein the container, nipple with suction tube and first non-return valve form a replaceable unit, the pump housing recess is adapted to slidably and sealingly receive the nipple and wherein the pump housing forms a unit with the housing; and wherein said support is a backing plate wherein said container includes grooves and said backing plate includes ribs engaging with said grooves for positioning the container.

Claim 4

A device for emitting a finely divided stream of liquid into the atmosphere from a container, comprising: a support to be rigidly attached to a movable element; a housing releasably received on said support; a pump housing in said housing having a recess and bore therein; a container in said housing for liquid to be dispensed; a nipple with a first non-return valve and suction tube at the top of the container, with the suction tube extending into the container, said nipple fitting into the recess of the pump housing; a pump piston inside the pump housing bore, said piston having a piston part extending outside the pump housing; a fixed abutment cooperating with said piston part such that upon engagement of said piston part with said abutment the piston performs a pressure stroke against the pressure of a spring and during movement away from the abutment performs a return or suction stroke; wherein said pump housing communicates with the pump piston on one side and with the first non-return valve and suction tube on the other side; a pressure channel with a second non-return valve leading to an atomizer, said pressure channel communicating with the pump housing; wherein the container, nipple with suction tube and first non-return valve form a replaceable unit, the pump housing recess is adapted to slidably and sealingly receive the nipple and wherein the pump housing forms a unit with the housing; and wherein said support is a backing plate wherein said container includes grooves and said backing plate includes ribs engaging with said grooves for positioning the container.