Device for attaching a dispenser member to a receptacle

A substance dispenser assembly comprising:

• an annular fixing ring comprising a bottom portion and a top portion, said bottom portion and said top portion together defining a height, said bottom portion having at the bottom thereof a plurality of circumferentially arranged snap-fastening feet projecting inwardly and also having an interior surface extending above said snap-fastening feet, said top portion having an inwardly-extending annular shoulder defining a lower surface and having a turret extending upwardly from said shoulder, said turret defining a receiving cavity and a smaller diameter central opening, at least a portion of the height of said fixing ring above said snap-fastening feet defining a generally cylindrical exterior surface that is circumferentially continuous and that defines an outer diameter;
• a dispenser member mounted in said fixing ring, said dispenser member including a pump having a body extending into said fixing ring turret in engagement therewith and having an upwardly extending dispenser head which extends upwardly through said smaller diameter central opening of said turret and which includes an actuator button;
• means for holding said dispenser member securely within said central opening of said fixing ring turret so that said actuator button projects above said turret and said body extends below said turret;
• and
• an annular hoop having a central opening and comprising a bottom end, a top end, and an annular side wall having a height at least as great as the height of said fixing ring so that when said annular hoop is mounted fully on said fixing ring said hoop will completely enclose said fixing ring preventing said snap-fastening feet from splaying apart, at least a portion of the height of said hoop annular side wall adjacent said bottom end defining a generally cylindrical interior surface having an inner diameter substantially identical with said outer diameter of said fixing ring cylindrical exterior surface so that after said annular hoop is mounted partway on said fixing ring frictional engagement between said hoop and said ring will resist separation of said hoop from said ring, said side wall of said hoop including at least one projection located on said interior surface and spaced upwardly from said hoop bottom end, said at least one projection defining a further inner diameter of said hoop which is less than said outer diameter of said fixing ring cylindrical exterior surface so that as said hoop is moved onto said fixing ring into increased longitudinal engagement with said fixing ring said at least one projection transfers some axial load to said fixing ring and so that after completion of the movement of said hoop further onto said fixing ring the engagement of said at least one projection with said fixing ring increases resistance to separation of said hoop from said fixing ring when oppositely directed forces are applied to said hoop and ring.