Lid and container

Claim 2

A stackable lid for attaching to a container, said container including a sidewall having an inwardly facing groove near a rim portion thereof and a sealing portion beneath said groove, said lid comprising: a bottom wall lying substantially in a plane; a bead joined to the periphery of said bottom wall, said bead including a first substantially vertical expansion sealing portion, a lower inwardly inclined portion and a horizontal portion for engaging, in a sealing contact, said groove on said container; an integral combination second expansion sealing portion, stacking and centering means comprising a continuous annular portion having a vertical peripheral wall portion formed below and spaced inwardly from the outer periphery of said bead and joining said horizontal portion of said bead and said bottom wall for, respectively, engaging, in sealing contact, said sealing portion beneath said groove on said container, for preventing substantial lateral movement between the lid and a like lid disposed beneath it in a vertical stack of such lids and for aiding in locating and guiding the lid over the rim portion of the container to which it is to be attached; a sidewall extending upwardly from said bead on said lid and including a plurality of spaced inwardly extending stacking lugs, said stacking lugs each including a substantially horizontal seat portion positioned to support the bead of a like lid in a stack of such lids and an upwardly and inwardly extending portion merging into a vertical arc-shaped portion immediately below said substantially horizontal seat portion which closely surrounds at a constant minimum distance a length of the vertical peripheral wall portion of said continuous annular portion formed below said bead of a like lid in a stack of such lids to prevent lateral displacement thereof in a stack of such lids; said sidewall extending upwardly from said bead on said lid also includes an upwardly and outwardly extending seating portion immediately above said substantially horizontal seat portions on said stacking lugs which seating portion is dimensioned and positioned to engage said lower inwardly inclined portion of the bead of a like lid disposed above said lid in a stack of such lids to further prevent lateral displacement of any lid in a stack of such lid; and a rim portion on said lid joined to said sidewall.

Claim 3

A tight sealing package comprising: a container having an open end defined by a circumferential rim portion; an inwardly facing groove near said rim portion of said container and a sealing portion beneath said groove; a lid adapted to be retained on said container, said lid comprising; a bottom wall for closing off said open end of said container; a bead joined to the periphery of said bottom wall, said bead including a first substantially vertical expansion sealing portion, a lower inwardly inclined portion and a horizontal portion for engaging, in a sealing contact, said groove on said container; an integral combination second expansion sealing portion, stacking and centering means comprising a continuous annular portion having a vertical peripheral wall portion formed below and spaced inwardly from the outer periphery of said bead and joining said horizontal portion of said bead and said bottom wall for, respectively, engaging, in sealing contact, said sealing portion beneath said groove on said container, for preventing substantial lateral movement between the lid and a like lid disposed beneath it in a vertical stack of such lids and for aiding in locating and guiding the lid over the rim portion of the container to which it is to be attached; a sidewall extending upwardly from said bead on said lid and including a plurality of spaced inwardly extending stacking lugs, said stacking lugs each including a substantially horizontal seat portion positioned to support the bead of a like lid in a stack of such lids and an upwardly and inwardly extending portion merging into a vertical arc-shaped portion immediately below said substantially horizontal seat portion which closely surrounds at a constant minimum distance a length of the vertical peripheral wall portion of said continuous annular portion formed below said bead of a like lid in a stack of such lids to prevent lateral displacement thereof in a stack of such lids; said sidewall extending upwardly from said bead on said lid also includes an upwardly and outwardly extending seating portion immediately above said substantially horizontal seat portions on said stacking lugs which seating portion is dimensioned and positioned to engage said lower inwardly inclined portion of the bead of a like lid disposed above said lid in a stack of such lids to further prevent lateral displacement of any lid in a stack of such lid; and a rim portion on said lid joined to said sidewall.

Claim 4

A tight sealing package comprising: a container having an open end defined by a circumferential rim portion; an inwardly facing groove near said rim portion of said container and a sealing portion beneath said groove; a lid adapted to be retained on said container, said lid comprising; a bottom wall for closing off said open end of said container; a bead joined to the periphery of said bottom wall, said bead including a first substantially vertical expansion sealing portion, a lower inwardly inclined portion and a horizontal portion for engaging, in a sealing contact, said groove on said container; an integral combination second expansion sealing portion, stacking and centering means comprising a continuous annular portion having a vertical peripheral wall portion formed below and spaced inwardly from the outer periphery of said bead and joining said horizontal portion of said bead and said bottom wall for, respectively, engaging, in sealing contact, said sealing portion beneath said groove on said container, for preventing substantial lateral movement between the lid and a like lid disposed beneath it in a vertical stack of such lids and for aiding in locating and guiding the lid over the rim portion of the container to which it is to be attached; a sidewall extending upwardly from said bead on said lid and including a plurality of spaced inwardly extending stacking lugs, said stacking lugs each including a substantially horizontal seat portion positioned to support the bead of a like lid in a stack of such lids and an upwardly and inwardly extending portion merging into a vertical arc-shaped portion immediately below said substantially horizontal seat portion which closely surrounds at a constant minimum distance a length of the vertical peripheral wall portion of said continuous annular portion formed below said bead of a like lid in a stack of such lids to prevent lateral displacement thereof in a stack of such lids; said sidewall extending upwardly from said bead on said lid also includes an upwardly and outwardly extending seating portion immediately above said substantially horizontal seat portions on said stacking lugs which seating portion is dimensioned and positioned to engage said lower inwardly inclined portion of the bead of a like lid disposed above said lid in a stack of such lids to further prevent lateral displacement of any lid in a stack of such lid; and a rim portion on said lid joined to said sidewall.

Claim 5

The package as described in claim 2 wherein said groove near said rim portion of said container includes a substantially vertical annular expansion sealing portion for engaging said first substantially vertical expansion sealing portion on said lid.

Claim 6

The package as described in claim 2 wherein said sealing portion beneath said groove on said container comprises a vertical annular expansion sealing portion for engaging said second vertical expansion sealing portion, stacking and centering means on said lid.

Claim 7

A stackable lid for attaching to a container, said container including a sidewall having an inwardly facing groove near a rim portion thereof, said lid comprising: a bottom wall lying substantially in a plane; a bead joined to the periphery of said bottom wall, said bead including a first substantially vertical expansion sealing portion, a lower inwardly inclined portion and a horizontal portion for engaging, in a sealing contact, said groove on said container; an integral combination stacking means and centering means comprising a continuous annular portion having a vertical peripheral wall portion formed below said bead and joining said horizontal portion of said bead and said bottom wall for, respectively, preventing substantial lateral movement between the lid and a like lid disposed beneath it in a vertical stack of such lids and for aiding in locating and guiding the lid over the rim portion of the container to which it is to be attached; a sidewall extending upwardly from said bead on said lid and including a plurality of spaced inwardly extending stacking lugs, said stacking lugs each including a substantially horizontal seat portion positioned to support the bead of a like lid in a stack of such lids and an upwardly and inwardly extending portion merging into a vertical arc-shaped portion immediately below said substantially horizontal seat portion which closely surrounds at a constant minimum distance a length of the vertical peripheral wall portion of said continuous annular portion formed below said bead of a like lid in a stack of such lids to prevent lateral displacement thereof in a stack of such lids; said sidewall extending upwardly from said bead on said lid also includes an upwardly and outwardly extending seating portion immediately above said substantialLy horizontal seat portions on said stacking lugs which seating portion is dimensioned and positioned to engage said lower inwardly inclined portion of the bead of a like lid disposed above said lid in a stack of such lids to further prevent lateral displacement of any lid in a stack of such lid; and a rim portion on said lid joined to said sidewall.

Claim 8

A stackable lid for attaching to a container, said container including a sidewall having an inwardly facing groove near a rim portion thereof, said lid comprising: a bottom wall lying substantially in a plane; a bead joined to the periphery of said bottom wall, said bead including a first substantially vertical expansion sealing portion, a lower inwardly inclined portion and a horizontal portion for engaging, in a sealing contact, said groove on said container; an integral combination stacking means and centering means comprising a continuous annular portion having a vertical peripheral wall portion formed below said bead and joining said horizontal portion of said bead and said bottom wall for, respectively, preventing substantial lateral movement between the lid and a like lid disposed beneath it in a vertical stack of such lids and for aiding in locating and guiding the lid over the rim portion of the container to which it is to be attached; a sidewall extending upwardly from said bead on said lid and including a plurality of spaced inwardly extending stacking lugs, said stacking lugs each including a substantially horizontal seat portion positioned to support the bead of a like lid in a stack of such lids and an upwardly and inwardly extending portion merging into a vertical arc-shaped portion immediately below said substantially horizontal seat portion which closely surrounds at a constant minimum distance a length of the vertical peripheral wall portion of said continuous annular portion formed below said bead of a like lid in a stack of such lids to prevent lateral displacement thereof in a stack of such lids; said sidewall extending upwardly from said bead on said lid also includes an upwardly and outwardly extending seating portion immediately above said substantialLy horizontal seat portions on said stacking lugs which seating portion is dimensioned and positioned to engage said lower inwardly inclined portion of the bead of a like lid disposed above said lid in a stack of such lids to further prevent lateral displacement of any lid in a stack of such lid; and a rim portion on said lid joined to said sidewall.