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US 5,513,768 AGranted
Sealing cap for containers
OwnerJames C. Smithinventor
Life of this patent
Estimating the term…
Abstract
A sealing device for a container is provided with a sealing member that varies the sealing capacity of the device in response to pressure changes within the container.
Claims19
A sealable container comprising:
- a tubular member having an open end and an inner wall;
- a closed container having an opening;
- means mounting the tubular member to the opening of the closed container;
- a sealing cap coupled to said tubular member, said sealing cap including a base and a cup-shaped member extending from said base, said cup-shaped member having an open end adjacent said base and a closed end comprising a generally convex wall, said generally convex end wall bulging outwardly in a direction away from said open end of the cup-shaped member and being configured to occlude said tubular member when said cup-shaped member is inserted through the open end of said tubular member;
- and
- a locking cap coupled to said tubular member, said locking cap having a portion configured for being received within said cup-shaped member and sized to prevent said convex wall from being inverted into a concave configuration when said cup-shaped member is positioned in said tubular member and said portion of said locking cap is positioned within said cup-shaped member.
3 more elements
A sealable device comprising:
- a tubular member having an open end and an inner and outer wall;
- a sealing cap coupled to said tubular member, said sealing cap including a base and a cup-shaped member extending from said base, said cup-shaped member having an open end adjacent said base and a closed end which comprises a generally convex end disposed away from said open end and toward the inner wall and which is configured to seal said tubular member when said cup-shaped member is inserted through the open end of said tubular member;
- a locking cap having a projection configured for being received within said cup-shaped member, said projection having a first portion sized to frictionally engage an inner surface of said cup-shaped member and a second portion sized and arranged to prevent said convex wall from being inverted into a concave configuration when said cup-shaped member is positioned in said tubular member and said projection is positioned within said cup-shaped member;
- and
- a flexible member having one end coupled to said sealing cap and another end coupled to said locking cap.
2 more elements
Dependencies are inferred from the claim text.