Plug style pump
AssigneeEmsar S.P.A.
InventorMiro S. Cater
Life of this patent
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Abstract
The embodiment of the invention are directed to a dispenser assembly having a reservoir bottle with an opening for fluid communication. The opening is formed to receive a housing cap and a dispensing pump such that the dispensing pump is sealingly engaged to the bottle opening. The housing cap has an outer surface in contact with the reservoir opening and an inner surface in contact with the dispensing pump. The outer surface includes a lip which engages the reservoir opening and a step which engages the pump.
Claims18
A housing cap for securing a dispenser pump to a reservoir having an opening comprising:
- an annular body having an upper end and a lower end, the upper end having an outwardly extending lip, an outer surface of the lip sealingly engages an inner surface of the opening of the reservoir,
- the lower end having a protrusion for engaging the pump at a first location;
- the annular body defining at least one notch for engaging the pump at a second location.
A housing cap for securing a dispenser pump to a reservoir comprising:
- an annular body having an upper end and a lower end,
- the upper end having an outwardly extending lip, an outer surface of the lip sealingly engages to a portion of the reservoir, the outwardly extending lip having an annular extension shaped to mate with the reservoir and having an outwardly extending member;
- the lower end having a protrusion for engaging the pump at a first location;
- the annular body defining an annular notch for engaging the pump at a second location and a recess spanning alone an inner surface of the body between the upper and lower ends.
A dispenser assembly comprising:
- a reservoir having an opening for fluid communication, the reservoir opening formed to receive a housing cap and a dispensing pump;
- the housing cap having an outer surface in contact with the reservoir opening and an inner surface to engage the pump, the outer surface defining a lip for engaging to the reservoir opening and a step to engage a portion of the pump, the inner surface having a plurality of steps to engage the pump,
- the pump having a body and a dispenser portion, the body being engaged by the plurality of steps.
The combination of a dispenser mounted on a bottle comprising:
- a. a bottle having:
- i. a body;
- ii. a neck atop the body forming an inlet passage terminating in an opening;
- iii. thin walls being formed around the opening;
- and
- iv. a relatively thick section spaced some distance below the opening forming an undercut;
- and
- b. a dispenser having:
- i. a housing having an open outer end;
- and
- ii. a plug inserted and retained in and projecting from the outer open end of said housing,
- c. said housing inserted in and engaging the inside of the neck below the undercut, with the projecting portion of the plug engaging outer portion of the inside of the neck.
Dependencies are inferred from the claim text.