Stackable container with protected lid seal
First Claim
Patent Images
1. A stackable container comprising:
- lip means for defining an open end of the stackable container;
a bottom;
a continuous sidewall interconnecting said lip means and said bottom;
lid means for engaging said lip means and for covering the stackable container open end, said lid means comprising a depending member having an angled end surface;
elastic means for providing a seal between said lid means and said lip means when the lip means is engaged by the lid means;
means for limiting compression of the elastic means when load is applied to the lid means in a manner comprising the lid means against the lip means; and
means for preventing radially outward movement of said continuous sidewall causing disengagement of the lid means from the lip means upon stacking of multiple stackable containers on one another with the bottom on one stackable container stacked on the top of another stackable container, said last recited means comprising a shelf molded into the sidewall and having a surface at an acute angle to the sidewall, said surface being configured, positioned and sized for mating with the lid angled end surface.
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Abstract
A stackable container includes a continuous sidewall interconnecting a lip means and the bottom along with a lid for engaging the lip and for covering an open end of the stackable container. An elastic seal is provided between the lid and the lip when the lip is engaged by the lid and an interior shelf limits pressure applied to the plastic seal during stacking of the containers to prevent setting thereof.
59 Citations
15 Claims
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1. A stackable container comprising:
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lip means for defining an open end of the stackable container; a bottom; a continuous sidewall interconnecting said lip means and said bottom; lid means for engaging said lip means and for covering the stackable container open end, said lid means comprising a depending member having an angled end surface; elastic means for providing a seal between said lid means and said lip means when the lip means is engaged by the lid means; means for limiting compression of the elastic means when load is applied to the lid means in a manner comprising the lid means against the lip means; and means for preventing radially outward movement of said continuous sidewall causing disengagement of the lid means from the lip means upon stacking of multiple stackable containers on one another with the bottom on one stackable container stacked on the top of another stackable container, said last recited means comprising a shelf molded into the sidewall and having a surface at an acute angle to the sidewall, said surface being configured, positioned and sized for mating with the lid angled end surface. - View Dependent Claims (2, 3, 4, 5)
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6. A stackable container comprising:
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lip means for defining an open end of the stackable container; a bottom; a continuous sidewall interconnecting said lip means and said bottom; lid means for engaging said lip means and for covering the stackable container open end, said lid means comprising a depending member having an angled end surface; elastic means for providing a seal between said lid means and said lip means when the lip means is engaged by the lid means; means for maintaining a constant compression seal between the lid means and the lip means with the elastic means therebetween; and means for preventing radially outward movement of said continuous sidewall, causing disengagement of the lid means from the lip means underside portion, upon stacking of multiple stackable containers on one another with the bottom on one stackable container stacked on the top of another stackable container, said last recited means comprising a shelf molded into the sidewall and having a surface at an acute angle to the sidewall, said surface being configured, positioned and sized for mating with the lid angled end surface. - View Dependent Claims (7, 8, 9, 10)
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11. A stackable container comprising:
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lip means for defining an open end of the stackable container; a bottom; a continuous sidewall interconnecting said lip means and said bottom; lid means for engaging said lip means and for covering the stackable containers open end, said lid means comprising a depending member having an angled end surface; elastic means for providing a seal between said lid means and said lip means when the lip means is engaged by the lid means; means for preventing nonresilient deformation of the elastic means; and means for preventing radially outward movement of said continuous sidewall, causing disengagement of the lid means from the lip means, upon stacking of multiple stackable containers on one another with the bottom on one stackable container stacked on the top of another stackable container, said last recited means comprising a shelf molded into the sidewall and having a surface at an acute angle to the sidewall, said surface being configured, positioned and sized for mating with the lid angled end surface. - View Dependent Claims (12, 13, 14, 15)
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Specification