Combined filter paper support and filtrate container

Claim 2

A container for use in filtering liquids capable of supporting a filter medium and also capable of containing the resulting filtrate comprising: a body portion having a base which permits the container to stand in an upright position on a horizontal surface; a circular neck area integral with said body portion and located thereabove, the minimum inside diameter of said neck area being at least two-fifths of the maximum outside dimension of said body portion but no more than three-fifths of said maximum outside dimension; a flared area extending upwardly from said neck area and terminating in an upper lip opening, said lip opening having a pouring spout and having a maximum outside diameter less than the maximum outside diameter of said body portion; flexible stopper means havings its lower end extending below said flared portion and contacting said neck area; and cover means fabricated from a rigid plastic attached to the upper end of said flexible stopper means, said cover means having a protective skirt extending outwardly above and downwardly around the upper lip of said container and further downwardly therefrom to a distance so that it about touches the intersection of the body portion and the neck area of said container when said stopper is fully inserted in said container, said skirt being generally cylindrical and having an outside diameter about equal to the outside diameter of the body portion of said container.

Claim 3

The container of claim 1 wherein said minimum inside diameter is about one-half of said maximum outside dimension.

Claim 4

The container of claim 1 wherein the intersection of said flared area with any plane in which the vertical axis of said container lies forms an arc of a circle having a radius between one-fourth and two-thirds of said minimum inside diameter.

Claim 5

The container of claim 1 wherein said flared area is frustro-conical in shape and the angle formed by the sides of said flared area is between 50* and 70*.

Claim 6

The container of claim 4 wherein said angle is about 58*.

Claim 7

The container of claim 1 wherein said body portion is cylindrical.

Claim 8

The sealed container of claim 1 wherein said cap further has an indented area in its upper surface said indented area being shaped to mate with the base of said container.

Claim 9

A container for use in filtering liquids said container being capable of supporting a conically folded piece of 11 centimeter filter paper and further being capable of containing liquid said container comprising: a cylindrical body portion having an outside diameter between 1 1/2 and 5 inches and having a base portion which permits the container to stand in an upright position on a horizontal surface; a neck area having a circular cross-section at any horizontal plane, the minimum inside diameter of said neck area being between two-fifths and three-fifths of its outside diameter; a flared area extending upwardly from said neck area and terminating in an upper lip opening having a maximum outside diameter less than the outside diameter of said cylindrical body portion and greater than said minimum inside diameter; flexible stopper means having its lower end extending below said flared area and contacting said neck area; and cover means fabricated from a rigid plastic attached to the upper end of said flexible stopper means, said cover means having a protective skirt extending outwardly above and downwardly around the upper lip of said container and further downwardly therefrom to a distance so that it about touches the intersection of the body portion and the neck area of said container when said stopper means is fully inserted in said container, said skirt being generally cylindrical and having an outside diameter about equal to the outside diameter of the body portion of said container.

Claim 10

A container for use in filtering liquids said container being capable of supporting a conically folded piece of 11 centimeter filter paper and further being capable of containing liquid said container comprising: a cylindrical body portion having an outside diameter between 1 1/2 and 5 inches and having a base portion which permits the container to stand in an upright position on a horizontal surface; a neck area having a circular cross-section at any horizontal plane, the minimum inside diameter of said neck area being between two-fifths and three-fifths of its outside diameter; a flared area extending upwardly from said neck area and terminating in an upper lip opening having a maximum outside diameter less than the outside diameter of said cylindrical body portion and greater than said minimum inside diameter; flexible stopper means having its lower end extending below said flared area and contacting said neck area; and cover means fabricated from a rigid plastic attached to the upper end of said flexible stopper means, said cover means having a protective skirt extending outwardly above and downwardly around the upper lip of said container and further downwardly therefrom to a distance so that it about touches the intersection of the body portion and the neck area of said container when said stopper means is fully inserted in said container, said skirt being generally cylindrical and having an outside diameter about equal to the outside diameter of the body portion of said container.

Claim 11

The container of claim 8 wherein the cross-section of said flared area along any plane in which the central vertical axis of said container lies forms the arc of a circle having the radius between one-fourth and two-thirds of its minimum inside diameter.

Claim 12

The container of claim 8 wherein said flared area is frustro-conical in shape and the angle formed by the sides of said flared area is between 50* and 70*.

Claim 13

The container of claim 10 wherein said angle is about 58*.