Curtain for a container, and container therewith
The present invention concerns a curtain for an open side of a container, and the container having such a curtain, wherein the curtain comprises a flexible web material, is of an approximately rectangular shape and can be connected along its upper edge to the portion of the container, which is in opposite relationship to that upper edge. In accordance with the invention, the lower left and right corner regions of the curtain are on average per unit of surface area of a greater weight than the average of the remaining areas of the curtain. This allows the curtain to close automatically and independently in a well-defined manner and in so doing completely covers over the front side of the container without a user having to actively intervene apart from pulling down the curtain from the top side of the container or allowing the raised curtain to fall.
1 . A curtain for an open side of a container, the curtain comprising:
a. a flexible web material of an approximately rectangular shape that is connected along an upper edge to a portion of the container; and
b. the curtain having lower left and right corner regions that are on average per unit of surface area of a greater weight than the average of the remaining areas of the curtain.
2 . A curtain according to claim 1 wherein the lower corner regions of the curtain have weights affixed thereto.
3 . A curtain according to claim 1 wherein the lower corner regions include thickenings of the flexible web material to provide the greater weight of the lower corner regions.
4 . A curtain according to claim 3 wherein the lower corner regions include a larger number of layers of the flexible web material than a greatest part of the remaining areas of the curtain.
5 . A curtain according to claim 4 wherein the lower corner regions include two layers of the flexible web material while the remaining areas of the curtain include substantially one layer of the flexible web material.
6 . A curtain according to claim 5 wherein each of the lower corner regions of increased weight in relation to the remaining areas of the curtain makes up at least about 10% of the total curtain area.
7 . A curtain according to claim 6 wherein the corner regions have a uniform density in relation to area.
8 . A curtain according to claim 7 wherein the lower corner regions include substantially an entire area which is defined by left and right corners of the curtain and lines which extends from the upper left and right corners, respectively, of the curtain to a longitudinal center line in proximity of or above a lower edge of the curtain, at a maximum to half a height of the curtain.
9 . A curtain according to claim 8 wherein at least a portion of the curtain is transparent plastic material.
10 . A curtain according to claim 9 including a bar of stiff material is fixed to the curtain so that it extends along a vertical center line of the curtain from a lower edge of the curtain to a point within a lower half of the curtain.
11 . A curtain according to claim 1 wherein each of the lower corner regions of increased weight in relation to the remaining areas of the curtain makes up at least about 10% of the total curtain area.
12 . A curtain according to claim 1 wherein the corner regions have a uniform density in relation to area.
13 . A curtain according to 1 wherein the lower corner regions include substantially an entire area which is defined by left and right corners of the curtain and lines which extends from the upper left and right corners, respectively, of the curtain to a longitudinal center line in proximity of or above a lower edge of the curtain, at a maximum to half a height of the curtain.
14 . A curtain according to claim 1 wherein at least a portion of the curtain is transparent plastic material.
15 . A curtain according to claim 1 including a bar of stiff material is fixed to the curtain so that it extends along a vertical center line of the curtain from a lower edge of the curtain to a point within a lower half of the curtain.
16 . A container, comprising:
an open side;
a curtain having an upper edge affixed to the container at an upper edge of the open side of the container; and
the curtain having weighted lower left and right corner regions so that an average per unit of surface area weight of the lower corner regions is greater than an average per unit of surface area weight of a remaining portion of the curtain.
17 . The container of claim 16 including weights affixed to the lower corner regions.
18 . The container of claim 16 wherein the lower corner regions are substantially triangular or trapezoidal regions.
19 . The container of claim 16 wherein the curtain includes a flexible web material, the lower corner regions having more layers of the flexible web material than the remaining portion of the curtain.
20 . A container according to claim 16 wherein each of the lower corner regions of the curtain of increased weight in relation to the remaining areas of the curtain makes up at least about 10% of total curtain area.
21 . A container according to claim 16 wherein the corner regions of the curtain have a uniform density in relation to area.
22 . A container according to 16 wherein the lower corner regions of the curtain include substantially an area which is defined by left and right corners of the curtain and lines which extends from the upper left and right corners, respectively, of the curtain to a longitudinal center line in proximity of or above a lower edge of the curtain, at a maximum to half a height of the curtain.
23 . A container according to claim 16 wherein at least a portion of the curtain is transparent plastic material.
24 . A container according to claim 16 including a bar of stiff material fixed to the curtain so that it extends along a vertical center line of the curtain from a lower edge of the curtain to a point within a lower half of the curtain.