Abstract: The child resistant safety closure is one that uses a common single start thread on the neck of a container and on a closure. In conjunction with this single start thread there is a single mating projection on the neck and on the closure. These mating projections are in an interference fit until the closure is distorted so that the closure bows outwardly in the region of the projections whereby the projection on the neck and the projection on the closure can pass by one another. The distortion is enhanced by having the plastic of the closure in the area of the projection of a decreased thickness and the neck having flattened portions to provide for a easy distortion of the closure. By the use of a single start common thread and one projection the same closure can be used for containers requiring a safety closure and those not requiring a safety closure. The difference will solely be in the neck finish of the container or on the inner surface of the closure.

Abstract: In the manufacture of multichamber tubular containers it has been found that the inner divider walls should be bonded to the exterior wall by means of a band sealing method. In the band sealing method there is a band that contacts the upper film and a band that contacts the lower film that are to be bonded. In the present processes the upper band contacts the inner divider wall while the lower band contacts the exterior surface of the outer wall of the tubular container. In order to prevent the marring or otherwise putting a defect into the exterior surface of the outer wall the temperature of the lower band is maintained at a lower temperature than the upper band. This will decrease the temperature of the exterior surface of the outer wall and prevent imperfections in the exterior surface of the outer wall. The advantage is a multichamber tubular container without any imperfections in the exterior surface. This enhances the overall appearance of the tubular container.

Abstract: Multichamber tubular containers are made by extrusion or injection stretch blow molding. The containers usually will have two or three chambers and one or more web walls. The web walls are relatively rigid as formed. The web walls must be stretched laterally to increase their flexibility which is needed for the uniform dispensing of product from the tubular chambers. The webs can be stretched mechanically by the rotation of rods, such as stretch rods, or pneumatically by a differential gas pressure in the chambers while the webs are at or near the glass transition temperature and can flow. The web walls for a circular tubular container can be stretched up to about one-half the diameter of the tubular container.

Abstract: The floss is of a yarn type that has a first thickness when under no tension and a considerably diminished thickness when under tension. The thickness of the floss can be decreased to as low as 10 percent of the thickness of the relaxed floss. This allows for easier insertion into interdental spaces. This floss is produced by coating a yarn and curing the coating on the yarn while the yarn is under minimal tension. This preserves the elasticity of the yarn and the property of the yarn having a range of thickness from a point of relaxation to a point of being under tension.

Abstract: The thermoformed package has a positive sealing ridge valve so that portions of the thermoformed package can be dispensed at different times. There is a relatively thick, shaped bottom sheet and a relatively thin, substantially planar, top sheet. The top sheet is bonded to the shaped bottom sheet around the perimeter of the shaped bottom sheet. At one end of the shaped bottom sheet there is a narrowed region with at least two recesses and a ridge separating the recessed areas. The ridge extends to or above the top surface of the shaped bottom sheet. The top sheet and the ridge cooperate to form a ridge valve to seal the body portion of the thermoformed package from a dispensing opening until a positive force is applied to the body portion. The thermoformed package is opened by the removal of a tab located beyond the recesses and ridge. The recesses and ridge in the shaped bottom sheet and the relatively thin top sheet form an effective sealing valve.

Abstract: A recloseable container is preferably produced by thermoforming. The container has an elongated shape with a dispensing nozzle at one end. Above the dispensing nozzle is a tab. When this tab is broken off the container, the nozzle is opened. Adjacent the nozzle is a hinged closure. The hinged closure has a shape complementary to that of the nozzle and can be rotated on the hinge to overlap and close the container nozzle. There is an arrangement to lock the closure in a nozzle closing orientation and an arrangement to provide an air and liquid seal to the nozzle.

Abstract: A method an apparatus for simultaneously dispensing a plurality of viscous materials, such as dentifrice pastes, produces a striped outer layer of a first material surrounding a core of a second viscous material. The apparatus includes a collapsible tube or pump-type dispenser containing a first viscous material and a second viscous material of a contrasting color in contact with the first material so that both materials are dispensed simultaneously. The tube or dispenser includes an outlet nozzle having a shaped outlet capable of scraping and removing a portion of the outer layer of viscous material to dispense the core material having stripes of the outer material. The nozzle is capable of forming a plurality of fine pin stripes on the core material.

Abstract: A pouch package is formed that has a multilayer structure of two or more layers where the longitudinal seal is formed from a bonding of the inner layer to the inner layer in a fin seal arrangement. One layer of the multilayer structure is a seal layer and another layer a barrier layer. There can be additional layers such as additional barrier layers and cutter lubricant layers. It is preferred that the multilayer structure have two to four layers (not counting adhesive tie layers) and that the inner seal layer be readily sealable by means of radio frequency energy. The longitudinal seal will preferably be along a side surface so as to have a spout. The pouch is made on form/fill equipment from a multilayer sheet by the multilayer sheet being formed into a tubular member with a longitudinal seal.

Abstract: There is provided a toothbrush where the dose of dentifrice used is controlled by the use of bristles of at least two different colors. When the bristles of one color are covered with a dentifrice the dose will be within guidelines. In addition, the dentifrice and bristles of one of the colors can be the same to aid in controlling the dose of dentifrice. This will in turn limit the dose of fluoride and other components of a dentifrice.

Abstract: The floor cleaning machine is designed for both side-to-side and for linear straight path operation. This is accomplished by having at least one recessed rear transport wheel and at least one side-mounted support wheel. The rear transport wheel is recessed and is used for floor machine transport. The side-mounted wheels are adjustable in a rotatable or a vertical plane and are used in a lowered orientation to support the floor cleaning machine for straight path operation. These side-mounted wheels are in a raised position when the floor cleaning machine is to be used in a side-to-side cleaning operation. Thus the position of the side-mounted wheels determine the mode of operation of the floor cleaning machine. Whether used for straight ahead operation or side-to-side operation, the recessed transport wheels will be used to move the floor cleaning machine from location to location.

Abstract: The web for a dual chamber tubular container can be maintained in an alignment across the container by providing one or more longitudinal modified areas on the web so that the web will yield and fold in the areas of the modified material. The modification will be a thinning or weakening of the web to produce yield points, such as fold points. This thinning or weakening can be produced mechanically or chemically. Mechanically, a pinch or other shaped roll can be used to thin or weaken an area. Thermally, heat can be applied. The result is a web that remains in an alignment across a tubular chamber rather than in close contact with the sidewall.

Abstract: An apparatus and a process for filling a plural chamber container, such as a container, with plural flowable materials. The container might be a two-compartment dentifrice container or a two-compartment adhesive container, for example. The container has internal partitioning dividing it into plural chambers, and the partitioning must be properly positioned to permit supply nozzles to enter the respective chambers. In one embodiment, the partitioning is positioned by probes which are inserted into the chamber, following which relative rotation between the container and the probes causes the probes to position the partitioning. In a second embodiment, air nozzles emit air jets to position the partition. In another embodiment, an electrostatic charge is induced on the container sidewall and on the partition, and the like charges cause the sidewall and the partition to repel each other, positioning the partition.