| 摘要 |
<p>A dispenser is mounted on a bottle which has a body, with a neck atop the body forming an inlet passage terminating in an opening. Thin walls are formed around the opening and a relatively thick section is spaced some distance below the opening forming an undercut. The dispenser includes a body having an open outer end with a plug inserted and retained in and projecting from the outer open end of said body. The housing is inserted in and engages the inside of the neck below the undercut, with the projecting portion of the plug engaging the outer portion of the inside of the neck. The dispenser may be a pump with a pump body with an inner end and an open outer end. The pump body forms a cylinder and a piston is disposed for reciprocal movement in the cylinder. A spring biases the piston toward open outer end and an inlet valve is disposed at the inner end of the cylinder. The pump also includes a stem having a central bore for dispensing a fluid from the cylinder with an outlet valve coupling the cylinder to the bore of the stem. An actuator is disposed on the stem in fluid communication therewith. The plug is inserted and retained in and projects from the outer open end of the pump body, the plug restraining outward movement of the piston.</p> |
