초록 ▼

A pump for dispensing fluid from a dispenser includes a base in fluid communication with a source of fluid carried by the dispenser and with the atmosphere. The pump includes a base attachable to the source of fluid, a flexible transparent dome attachable to the base in overlying relationship therew

A pump for dispensing fluid from a dispenser includes a base in fluid communication with a source of fluid carried by the dispenser and with the atmosphere. The pump includes a base attachable to the source of fluid, a flexible transparent dome attachable to the base in overlying relationship therewith and in fluid-tight relationship, and a retainer attachable to the base in partial overlying relationship with the dome to retain the dome on the base. The pump also includes valves for selectively opening and closing the pump to fluid communication with the source of fluid and the ambient atmosphere.

대표청구항 ▼

[ What is claimed is:] [1.]1. A pump for use with a source of fluid, comprising:a) a pump base;b) a first connector attached to and projecting from said base for attachment to the source of fluid;c) said base having through outlet means in fluid communication with the ambient atmosphere;d) said firs

[ What is claimed is:] [1.]1. A pump for use with a source of fluid, comprising:a) a pump base;b) a first connector attached to and projecting from said base for attachment to the source of fluid;c) said base having through outlet means in fluid communication with the ambient atmosphere;d) said first connector being hollow for fluid communication between the source of fluid and said pump base;e) said connector and said through outlet means having their axes disposed in planes substantially normal to each other;f) first valve means carried by said pump base for selectively closing off and opening said first connector to fluid communication andg) a flexible pressure member1) attached to said base in overlying, fluid-tight relationship therewith and2) forming a chamber with said base whereby, upon collapse of said pressure member, fluid within said chamber is expelled therefrom through said through outlet and, upon expansion of said pressure member, fluid is drawn into said chamber from the source of fluid.