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US 6,886,706 B2Granted
Container closure seal
OwnerRenee Bakkerinventor
Life of this patent
Estimating the term…
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OwnerRenee Bakkerinventor
Estimating the term…
Disclosed herein is a container closure sealing washer pre-assembly (40) comprising at least one part (42) of one material integrally formed with another part (44) of another material, preferably both materials are resiliently deformable, elastomers, with said one material being capable of greater compression than said another material and being a nitrile rubber and said another material being more inert to or compatible with given container contents than said one material and being an ethylene-propylene-diene-monomer rubber; the sealing washer may be used in combination with an insert (10) having a body (12) with a radially extending flange (14), the sealing washer being stretched about and thereby retained on the flanged insert and assuming a cylindrical to frusto-conic shape with at least said one part tightly in contact with the insert body and the said another part proximate to or contacting the insert flange; and the combination may be included in a closure for a container (22) with the flanged insert located in a collar (18) extending outwardly from the container, said one part of the sealing washer being radially compressed between the insert body and the collar and said another washer part being wedged between the corner formed by insert body and the insert flange and the corner formed by the container wall and the collar.
A container with a container closure, the closure including a two part sealing washer pre-assembly insert combination, said insert comprising an internally threaded tubular body a radially extending flange surrounding said tubular body forming a corner therebetween, an axially elongated cylindrical sealing washer tightly surrounding said tubular body and resting in close proximity to said flange, said sealing washer having a uniform rectangular vertical cross section with an integrally formed rectangular vertical cross section upper portion and a rectangular vertical cross section lower portion, a container wall directly overlying said flange having an upstanding collar surrounding said sealing washer with the upper end of said insert curled over said collar, means for radially compressing said sealing washer upper upper portion rectangular cross section between the major portion of said container wall collar and said insert tubular body to cause said sealing washer lower portion rectangular cross section to be deformed by wedging within and completely fill the void formed between said corner on said insert and the corner formed between said overlying container wall and said collar.
Dependencies are inferred from the claim text.