PLUG STYLE PUMP - EMSAR INC

Title:

PLUG STYLE PUMP

Document Type and Number:

WIPO Patent Application WO2004020295

Kind Code:

A3

Abstract:

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.

Inventors:

CATER MIRO S

Application Number:

PCT/US2003/026861

Publication Date:

March 31, 2005

Filing Date:

August 28, 2003

Export Citation:

Click for automatic bibliography generation Help

Assignee:

EMSAR INC (US)

International Classes:

B05B11/00; B65D88/54; G01F11/06; G01F11/30; G01F11/36; G01F11/42; B65D; (IPC1-7): B65D88/54; G01F11/06; G01F11/30; G01F11/36; G01F11/42

Foreign References:

US5642908A	1997-07-01
US5363993A	1994-11-15
US6279786B1	2001-08-28
US5709324A	1998-01-20

Other References: