US 5,289,930 A · Evaporation closure

Abstract

An evaporation closure is disclosed. One embodiment of the closure includes a cap, made of pliable material, which in turn includes a top wall having an opening, a skirt downwardly depending from the top wall and having a threadless internal wall adapted to slip on and sealingly engage a container, and biasing means integral with the skirt; and an elongated arm, which in turn includes a means for sealing the opening, pivotally attached to the cap for movement between a first position wherein the sealing means seals the opening and a second position wherein the sealing means does not seal the opening, the arm being biased toward the first position by the biasing means. Such a closure is useful for minimizing evaporation from containers, particularly automated clinical analyzer reagent bottles. A kit including in packaged combination component parts of the evaporation closure is also disclosed. Such a kit is useful for conveniently assembling the evaporation closures of the present invention.

Claims12

Dependent claims

A closure comprising:

a cap made of pliable material comprising (a) a top wall having an opening, (b) a skirt, downwardly depending from said top wall, said skirt made of pliable material and having a threadless internal wall to slip on and sealingly engage a container, and (c) a discrete first hinge portion integral with said top wall;
an elongated arm comprising sealing means for sealing said opening and a discrete second hinge portion integral with said elongated arm, said discrete second hinge portion pivotally mated with said discrete first hinge portion and rotatable relative thereto for movement of said elongated arm between a first position, wherein said sealing means seal said opening and a second position, wherein said sealing means does not seal said opening
biasing means having a width and integral with said skirt for biasing said arm toward said first position;
and
a vial locating tab separate from said hinge portions and disposed between and integral with said biasing means and said skirt, said vial locating tab having a width less than an outside diameter of said skirt and less than the width of said biasing means.

2 more elements

Dependencies are inferred from the claim text.

Evaporation closure

Life of this patent

Evaporation closure

Life of this patent

Abstract

Claims12