Seal testable container structure
AssigneeAmerican National Can Company
InventorChristopher J. Farrell
Life of this patent
Estimating the term…
Abstract
Methods and systems for testing the seals of container lids to the top portion of container bodies are provided. Testing the integrity of the seal is achieved by injecting fluid under pressure under the lid portion of the container and detecting if the lid bulges outwardly with respect to its at-rest position prior to injecting fluid. A container adapted to having the seal tested for leakage is also provided.
Claims28
A container comprising a container body and a lid sealed thereto, said container being adapted to have said seal tested for leakage, wherein:
- said container body has a side wall, a bottom wall, a top opening and a top peripheral surface extending from about said top opening;
- said top surface having a top face, divided into inner, central and outer peripheral portions;
- said lid being sealed about said container top surface by a seal, said seal being potentially hermetic and about said inner and cuter peripheral portions, said, and at least one fluid passageway opening in said container in communication with the unsealed central peripheral portion and the ambient atmosphere exterior of said container, said at least one fluid passageway opening being formed prior to testing of the seal.
A container comprising a container body and a lid sealed thereto, said container being adapted to have said seal tested for leakage, wherein:
- said container body has a side wall, an imaginary axis, a bottom wall, a top peripheral surface extending outwardly from, about and defining a top opening;
- said top surface having a top face, a side surface and a peripheral channel in said top surface;
- said lid being sealed to said container top surface by a seal, said seal being potentially hermetic and about said top surface inward of said channel;
- and
- said peripheral top surface outward of said channel having at least one opening leading from said side surface to and communicating with said channel.
A container comprising a container body and a lid sealed thereon said container being adapted to have said seal tested for leakage, and after having been so tested being comprised of:
- a flexible lid having a marginal edge portion thereabout, a top exposed face and a bottom face, said bottom face having an area comprised of a sealable plastic material;
- a container body;
- said container body comprising a side wall, a bottom wall, an open end portion opposite said bottom wall, and a flange portion extending outwardly from said open end portion;
- said flange having a side edge, a top surface having an inner annular top surface area and a depressed outer top surface area;
- said seal comprising:
- (a) a seal of said inner annular top surface area to said lid bottom face and with said marginal edge portion extending outwardly over said depressed outer top surface area;
- and (b) a seal of said depressed outer top surface area to said lid bottom face of said marginal edge portion.
A container comprising a container body and a lid sealed thereon, said container being adapted to have said seal tested for leakage, comprised of:
- a flexible lid having a marginal edge portion, a top exposed face and a bottom face, said bottom face having a marginal edge portion which includes a sealable plastic material;
- a container body;
- said container body comprising a bottom wall and a side wall having a top terminal end portion which at least partially defines a top opening in said container body;
- said seal being a seal of a portion of said top terminal end portion of said side wall to said lid marginal edge portion, said side wall terminal end portion having at least one opening therethrough above said seal said at least one opening being formed prior to testing of the seal.
A container comprising a container body and a lid sealed thereon said container being adapted to have said seal tested for leakage, comprised of:
- a flexible lid having a marginal edge portion thereabout, a top exposed face and a bottom face, said bottom face having an area comprised of a sealable plastic material;
- a container body;
- said container body comprising a side wall, a bottom wall, an open end portion opposite said bottom wall and a flange portion extending outwardly from said open end portion;
- said flange having a side edge, a top surface being an inner annular top surface area and a depressed outer top surface area, wherein said side wall rises to said top surface;
- and
- said seal being a seal of said inner annular top surface area to said lid bottom face and said marginal edge portion extending outwardly over said depressed outer top surface area, said depressed outer top surface area being in communication with the ambient atmosphere exterior of said container prior to testing of the seal.
Dependencies are inferred from the claim text.