Abstract: This relates to lids which incorporate a barrier material and which may be suitable heat bonded to plastic containers. A feature of the lid is that the area of the lid which is to be permanently bonded to the container is defined by two scores wherein, in the removal of the lid, for all practical purpose rupture of the lid material per se is eliminated and the opening operation is restricted to peeling-like separation of layers of the lid. Another feature of the lid is the controlled adhesion between the removable portion of the lid and the remainder of the lid by applying a resist layer next to the adhesive layer which secures the removable portion of the lid to the remainder of the lid. The effectiveness of the resist layer is controlled by applying the resist layer utilizing a half tone printing process.

Abstract: This relates to a clamp assembly for engagement with a lowermost rear pallet board in a truck or trailer so as to restrain the pallet and all preceding pallets and those stacked thereon against rearward movement. The pallet clamp assembly includes a suitable track recessed in the trailer bed or floor and a pallet clamp which is adjustable longitudinally of the track and which in its inoperative position is fully seated and retained in the track against movement. The pallet clamp is of a simple construction and once released against movement longitudinally of the track may be easily manually positioned relative to a pallet and then locked relative to the track in its adjusted position. In a like manner, when it is desired to unload the truck or trailer, the pallet clamp may be readily released with respect to the track, moved rearwardly away from the pallet and fully seated within the track so as to in no way interfere with the unloading of pallets from the truck or trailer.

Abstract: Gaskets are formed in container closures fabricated from polyolefin resins exhibiting substantially no response to heat activation by radio frequency electrical energy by introducing a vinyl chloride plastisol containing a vinyl chloride polymer resin and a plasticizer having a loss factor in the range of 0.1-12 into the closure. The closure is preheated to 55.degree. to 100.degree. C. by conventional means and then the plastisol is fused in the closure by exposure to a field of radio frequency electrical energy.

Abstract: A control system for providing a closed loop control circuit between a liquid nitrogen dispenser and apparatus for determining internal pressure within a closed can having liquid nitrogen applied thereto whereby the automatic controlling of the volume of liquid nitrogen dispensed into each can is effected. Control data from a pressure test unit is averaged and the average is compared to a preselected set point and converted into a pulse of a width varying in accordance with the average detected pressure of previously filled cans to control the time of dispensing and thus the volume of dispensed liquid nitrogen.

Abstract: This relates to the forging of web-like portions of components so as to increase the density thereof and to shape the material for various purposes. In one form of the invention forging is utilized to form an upstanding sealing rib without a material orientation of the plastic which would result in distortion of the material should it be subjected to retorting. In another form of the invention forge tooling is utilized to provide an element with a hinge strip wherein the core material is compressed without an undue internal stressing of the core material. Most particularly, the tooling is heated to provide a softening of the skin surfaces of the material thereby permitting relative movement of the material which is being forged with respect to the tooling and thereby an internal compressing of the material without shear stresses being developed therein. This abstract is not to be considered as limiting the claims of the application.

Abstract: This relates to a utensil such as a spoon which is collapsible to occupy a minimum of space. The utensil preferably has a handle formed in two parts joined together by a hinge with there being a releasable interlock between the two handle parts adjacent the hinge for maintaining the handle parts in longitudinal alignment and as an extension of one another. The handle parts may also be provided with cooperating interlocking structure for maintaining the handle parts in longitudinally aligned overlapping relation when the utensil is collapsed. This abstract is not to be constructed as limiting the claims of the application.

Abstract: A coating composition and container coated with said composition comprising a water insoluble organic coating and having incorporated therein zinc oxide and an alkaline earth metal material in an amount sufficient to effect green color retention of green vegetables.

Abstract: This relates to a dispenser for a hot melt material which is supplied in rod-like form from a spool and which is heated to the required semi-liquid dispensing state. The dispensing head is provided with a heating passage which provides for uniform heating of the rod-like hot melt material and there is further provided a special piston having a throughbore through which hot melt material is fed into a pumping cylinder as the piston retracts after a pumping stroke so as to eliminate in the dispensing head downstream of the piston any momentary voids. There is also a feed mechanism which will feed the hot melt material in accordance with the demand of the dispensing head and which will urge the rod-like hot melt material into the heating passage of the dispensing head under a preselected pressure so as to assure flow not only through the heating passage, but also through the piston.

Abstract: This relates to an applied force monitor which is associated with sheet material forming mechanisms so as to determine whether sheet material is being properly formed by the amount of force applied in the formation thereof. A typical force applying member would be a cam. Suitable strain gauges are associated with the force applying member with the strain gauges being coupled in a bridge having a voltage output which is indicative of the applied force and which is directed to a microcomputer into which suitable indicia is selectively fed and such indicia will include high and low forces which would be indicative of a fault. The microcomputer includes a memory in which the faults are stored and in addition to indicating when individual faults do occur, the memory, when excess faults are determined, will serve to shut down the associated machine. Data may be visually displayed or may be permanently recorded by way of a printer.

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: This relates to the forging of web-like portions of components so as to increase the density thereof and to shape the material for various purposes. In one form of the invention forging is utilized to form an upstanding sealing rib without a material orientation of the plastic which would result in distortion of the material should it be subjected to retorting. In another form of the invention forge tooling is utilized to provide an element with a hinge strip wherein the core material is compressed without an undue internal stressing of the core material. Most particularly, the tooling is heated to provide a softening of the skin surfaces of the material thereby permitting relative movement of the material which is being forged with respect to the tooling and thereby an internal compressing of the material without shear stresses being developed therein.

Abstract: A capacitance article density monitor which is adjusted to have a zero voltage output when no articles are positioned adjacent a sensor and wherein the output of the circuit may be utilized directly to control a variable speed drive for a machine to which articles are being directed depending upon the density of such articles in a conveying area in advance of the machine. This abstract forms no part of the specification of this application and is not to be construed as limiting the claims of the application.

Abstract: This relates to a machine for assembling end units with container bodies. The container bodies have cylindrical open upper ends over which a cylindrical lower portion of an end unit or dome is telescoped with the overlapping portions being adhesively bonded together. The machine receives the end units serially and by way of a Ferris wheel type conveyor moves the end units first to an adhesive applicator where a band of adhesive is applied to the interior of each end unit, after which each end unit is then telescoped over and pressed into position relative to an associated body. The operation of the machine is continuous.

Abstract: This relates to an induction heating apparatus which is particularly constructed and configurated so as to induce electrical current into a cylindrical portion of a member while the member moves along a path and is free of being rotated. The induction heading apparatus, by applying a uniform circumferential heating current, permits the device being heated to be pressed down into position relative to a companion device. The apparatus particularly relates to the heating of a heat softenable adhesive joining together telescoped cylindrical portions of a container and the proper seating of the upper container end unit on the container body and assures a uniform bond between the telescoped portions. This abstract forms no part of the specification of this application and is not to be construed as limiting the claims of the application.

Abstract: This relates to a system for reheating adhesive bonding an end unit to a can body under controlled conditions and then further telescoping the end unit relative to the can body to assure proper adhesive flow relative to the can body. An end unit has been previously applied to a can body and is bonded thereto by a hot melt adhesive which has partially set. The end unit is not in its fully telescoped position. The adhesive is reheated to a temperature wherein the adhesive has the desired fluidity, after which the adhesive is maintained at this temperature and the end unit is moved to its fully telescoped position with a bead of the adhesive flowing over and encapsulating the raw edge of the can body.

Abstract: This relates to a tamper indicating feature for a lever actuated closure. In particular, the lever is provided with a hinge wherein, when the lever is actuated, a free end portion of the lever hinges from its normal planar state with respect to the rest of the lever and, due to the provision of stretchable ribs or webs, the tilted lever free end portion cannot be returned to its initial position planar with the remainder of the lever, and thus sticks up like a sore thumb and indicates tampering.

Abstract: This relates to the formation of a line of weakening in the form of a score in a metal sheet for defining a line along which the metal sheet may be ruptured. It has been found that when the metal sheet in the area which is to be scored is compressed, the metal sheet may be more easily scored to a controlled residual with a minimum of undue fracture. Accordingly, beads are coined on the underside of the metal sheet on opposite sides of the intended position of the score in a first operation to compress the metal. The then compressed metal is engaged by a conventional scoring die on the opposite surface thereof and scoring of the metal is effected in the normal manner.

Abstract: This relates to the modification of an existing type of closure which employs a fulcrum post about which a part of the closure functioning as a lever pivots while bearing on an axially facing surface of the fulcrum post so as to weaken the fulcrum post in a manner wherein, when a pry tool is used and bears against the fulcrum post in a radial direction, the fulcrum post will separate into bendable tabs both to hinder the prying operation and to give indication of tampering efforts.

Abstract: The natural color of canned green vegetables is retained by blanching the vegetables, prior to packing, in an aqueous solution of a metal ion selected from zinc and copper.

Abstract: This relates to a closure and container assembly wherein the closure has a plug member which is received within the dispensing or pour opening of the container and wherein the plug member has an interlock beneath a shoulder of the container surrounding the pour opening such as normally to prevent removal of the plug member. The pour opening has a limited portion of increased diameter or radial displacement which permits removal of the plug member when an associated lever and the plug member are aligned with this enlargement. There is also a tamper indicating connection between the lever and the plug member which identifies when the lever has been lifted.