Abstract: A rigid sheet metal substrate can body (50) and end closure (92) provides dependable tamper-evident and abuse-resistant packaging for shipment and long shelf-life storage without freezing; and, in addition, provides for direct heating in the can body after opening, including microwave heating, for serving and/or eating directly from such disposable container. The can body is shaped by draw processing with diminishing cross sectional areas in proceeding height-wise from open end (61) to closed bottom wall (56).

Abstract: A pail body having a longitudinal axis and an open end has an end wall fitted in the open end, said fitting involving outward bending of a flange at the open end of the pail body and interengagement of this body flange with a flange on the end wall introduced into the open end of the pail body. A region of the pail body adjacent the body flange is formed so that it is outwardly inclined with respect to the axis of the pail body at a small angle (e.g. from 4.degree. to 12.degree.), said angle corresponding to the angle of taper on a tapering rim part on the end wall introduced into the open end of said pail body, thus promoting close contact between said body region with said tapering rim part.

Abstract: In a method of fitting a top or a bottom to the body of a can, the top or bottom is placed inside a die having a rolling surface. The top or bottom has an inwardly rolled edge defining a support surface adapted to be substantially mated with at least part of the rolling surface. An end portion of the can body is inserted between this rolling surface and this support surface. Thrust is then applied to the can body until it causes the end portion to roll around and envelop the support surface. The corresponding machine comprises at least one rolling die incorporating a bush defining a first rolling surface facing radially inwards and a plurality of jaws disposed along a perimeter corresponding to the shape of the can. The jaws are movable towards an inside wall of this bush and are shaped to define at least part of a second rolling surface which faces radially outwards.

Abstract: A method of seaming a preformed end closure to a preformed container body of a drum or the like for forming a seam of reduced radial projection relative to the sidewall of the container body. At the start of seaming the end closure is in driving engagement with a rotating chuck and flanges of the end closure and container body are in overlying relation. The skirt of the end closure is radially spaced from the sidewall of the chuck and driving engagement therebetween is effected in the annular curved connecting zone between the skirt and recessed transverse central portion of the end closure. The skirt flares from the central portion to the flange thereof and is preferably at least in part frustoconical or has an annular step. The sidewall of the container body is centered on the skirt of the end closure and is spaced a radial distance from the chuck sidewall substantially greater than the thickness of the sheet metal of the end closure of the skirt.

Abstract: A sealed laminated vessel is formed from a barrel composed of a laminate including a paper substrate and a metal foil with inner and outer heat-sealable resin layers on both surfaces lapped together to form a straight side seam and a lid member on at least one open end thereof formed from a laminate of a metal foil and heat-sealable resin layer which is heat sealed to a circumferential end edge portion of the barrel. The vessel is formed by a process which includes forming a flat circumferential end portion of the barrel by bending at least one open end of the barrel outwardly and thereafter inwardly bending a part of the bent portion in the reverse direction so that it is lapped on the lower side of the remaining part of the bent portion to form a flat circumferential end portion on at least one open end of the barrel.The lid member is thereafter heat-sealed to the circumferential portion of the barrel through the heat-sealable resin layer of the lid member.

Abstract: A triple seam for assemblying a bottom to a container body, and a process for forming the triple seam. The process comprises the step of forming an axially extending seaming structure comprising a plurality of layers belonging to adjoining edges of the body and bottom. One of the adjoining edges includes a first layer and a contiguous overfolded second layer having an axial length less than the axial length of said first layer to increase the number of layers in a first axial section of the seaming structure. The process also includes the step of lamination rolling the seaming structure to a uniform width. A hook-shaped profile is formed in said body edge as a preliminary step in this process.

Abstract: In a metal can at least one component having an edge portion forming part of a seam is made from pre-laminated plate comprising a metal substrate with a polymeric film bonded over the whole of one or both of its sides. An aerosol valve cup is made from such plate with its underside having such a polymeric layer, and is secured to the can body in a seam by conventional mechanical deformation, such as swaging, so as to compress the polymeric layer in the seam. This provides a satisfactory seal without the need for any additional sealing material within the seam.

Abstract: This relates to a double seam tightness monitor wherein the second operation track of a cam of a double seaming apparatus or can closing machine is modified so as to permit the high dwell portion of the lobe thereof to deflect under loading from the associated cam follower which forces the second operation roll against the double seam component. Suitable strain gauges are associated with the deformable cam track portion and these are coupled in a bridge having a voltage output which is directed to a microprocessor. The microprocessor is provided with selected inputs which in combination with the voltage input from the bridge may be utilized to provide various signals including a high force condition signal, a pass condition signal, and a low force condition signal. There may also be associated with the microprocessor a printer for identifying the station where an abnormal condition exists, the specific force of the abnormal condition, the machine number, the time and the date.

Abstract: A method for reforming at least a portion of a multiple necked-in can body to provide at least an essentially right cylindrical-shaped portion adjacent a last necked-in portion by contacting at least the portion adjacent above and below the last necked-in portion with a rotating roll and providing relative movement of the periphery of the can body with respect to the rotating roll.

Abstract: A metal container has a seam which comprises two continuous groups of concentric circular arcs having a center angle of 180 degrees or 180 degrees and under 180 degrees and centered on two points separated from each other by a distance equal to 1/2 of the sum of the thickness of two metal sheets making up the seam. The axis of the seam is a straight line passing through the two centers that can be inclined at any angle with respect to the axis of the container. The seam has a cross-sectional shape that is mostly point-symmetrical with respect to a center that is the mid-point between the two centers. The seam is formed by an apparatus which comprises a seaming roll and a chuck ring, each of which has a forming groove comprising, in cross-section, two continuous circular arcs centered on two points that are separated from each other by the distance equal to 1/2 of the sum of the thicknesses of the metal sheets making up the seam.

Abstract: A cylindrical metal container with a relatively large holding capacity has triple seams having a vertically long, generally elongate rectangular cross section, the top and bottom parts of the seam having a convex substantially semi-elliptical or semi-circular profile. The outer face of the seam bulges outward adjacent its top, or its top and bottom, and the middle part between the top and bottom constitutes a pressed groove between the top and bottom and substantially parallel to the axis of the container. The body and end plate flanges are held in strong and direct contact with each other, overlapping each other in the center of the seam. A sealing compound is sealed in a void left between the edge of one flange and the curved portion of the other flange.

Abstract: This invention relates to a novel lifter construction for rolling filled cans. It is designed to allow a lifter plate to effect relative rotation with respect to a lifter body to be forcibly driven in order to introduce the merits of the free rotation system into a lifter of prior art forced driving system. To this end, there is proposed a construction wherein the lifter plate is driven by a clutch and the clutch is disengaged with lifter pressure, and a construction wherein the lifter plate may be rotated through a given angle on the plate supporting bed. Preferably, a detector is provided to detect an abnormal rolling of cans or the like.

Abstract: A fluid filter of the disposable automotive spin-on type has a cup-shaped member and a closure member which together form a chamber for receiving a filtering media. The cup-shaped member has a relatively thin side wall and an open end defined by a marginal edge including a bead. The closure member is a one-piece stamping of uniform thickness and substantially thicker than the cup-shaped member. The closure member closes the open end of the cup-shaped member and includes an annular rim which extends perpendicularly to the plane of the closure member and generally parallel to the side wall of the cup-shaped member. A channel defined by the rim receives the bead of the cup-shaped member and the rim is crimped to form a fluid-tight connection between the members.

Abstract: A container and a method for making the same for a gas generating propellant such as used in vehicle air bag systems. The container comprises an elongated thin wall metal cylinder having a plurality of perforations extending substantially the length thereof. A hermetic liner is attached to the inner surface of the cylinder to seal the perforated area of the wall. The hermetic liner comprises a laminated plastic film and metal foil composite having a thickness less than that of the cylinder wall and being rupturable under the pressure of gas generated within the cylinder. The ends of the cylinder are closed by metal end caps.

Abstract: A method and apparatus for forming a drum seam. A tray-like end plate having a cylindrical portion forming an indented shape and an outward extending end plate flange formed by the edge of the cylindrical portion is fitted into the end of a cylindrical drum body having a body flange extending outward from the edge thereof perpendicular to the cylindrical axis of the body with the end plate flange overlapping and extending along and beyond the body flange. A seaming chuck having a cylindrical forming face is fitted into the tray-like end plate for holding the body and end plate together with the forming face of the seaming chuck against the inner surface of said cylindrical portion and rotated for rotating the drum body and end plate. The seaming chuck has a fillet on the end adjacent the position where the end plate flange extends from the cylindrical portion and an inclined surface extending from the forming face outwardly thereof.

Abstract: A container having a cylindrical body and a pair of end panels includes a single seam construction for sealingly connecting the end panels to the body. Each end panel includes an integral upright flange which is curled outwardly at its free end for receiving the terminal end of the container body so that the outer surface of the flange intimately engages the outer surface of the body. The seam is then constructed by deforming the flange and container body inwardly and then outwardly so that the terminal end of the flange abuts the outer surface of the container body.

Abstract: This invention relates to method for manufacturing composite containers. The containers of the preferred embodiment are especially adapted for dispensing food stuffs.