Container with concertina side walls and base
First Claim
1. A container having an upper portion and a lower portion comprising:
- a containment region including at least one side wall, a basal wall and at least one pair of opposed regions of said side wall extending from said basal wall;
an upper opening at least partially surrounded by a flange disposed at an end of said at least one side wall distal from said basal wall;
a plurality of pre-formed features reducing resistance to compression of said lower portion compared to said upper portion configured to accommodate substantially complete buckling of said basal wall to bring said opposed regions of said side wall substantially adjacent one another upon squeezing of said opposed regions of said side wall; and
said pre-formed features including at least one surface relief on said basal wall and a region of concertina in said side wall.
1 Assignment
0 Petitions
Accused Products
Abstract
A collapsible container or reservoir including at least one side wall region (4-7) and a basal wall region or base (8) surrounding a containment region having an upper opening or mouth (10) surrounded by a perimeter flange (9) at the ends of the side walls distal from the basal wall region, the side walls include a region of concertina (14) whereby, upon squeezing or compression of the side walls, the basal wall region of the container is compacted more, relative to the extent of the upper opening. The container can be used for dispensing foods such as pet food, sauces, yogurt, custard or the like, or other liquids or semi fluid materials such as oil, grease, glue or resin.
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Citations
31 Claims
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1. A container having an upper portion and a lower portion comprising:
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a containment region including at least one side wall, a basal wall and at least one pair of opposed regions of said side wall extending from said basal wall; an upper opening at least partially surrounded by a flange disposed at an end of said at least one side wall distal from said basal wall; a plurality of pre-formed features reducing resistance to compression of said lower portion compared to said upper portion configured to accommodate substantially complete buckling of said basal wall to bring said opposed regions of said side wall substantially adjacent one another upon squeezing of said opposed regions of said side wall; and said pre-formed features including at least one surface relief on said basal wall and a region of concertina in said side wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A set of containers, wherein
each container having an upper portion and a lower portion, each container including a containment region including at least one side wall, a basal wall and at least one pair of opposed regions of said side wall extending from said basal wall; -
an upper opening at least partially surrounded by a flange disposed at an end of said at least one side wall distal from said basal wall; a plurality of pre-formed features reducing resistance to compression of said lower portion compared to said upper portion configured to accommodate substantially complete buckling of said basal wall to bring said opposed regions of said side wall substantially adjacent one another upon squeezing of said opposed regions of said side wall; and said pre-formed features including at least one surface relief on said basal wall and a region of concertina in said side wall; said containers being integrally formed with each other. - View Dependent Claims (30, 31)
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Specification