Abstract: A container cover member comprising a cover sheet formed of paper or thermoplastic synthetic resin having an opening of a desired size and shape in a predetermined position and over said opening a closure member having a pull tab or handle formed of thermoplastic resin which is compatible with the material of said cover sheet, said opening being easily uncovered when said pull tab is pulled up, and the process for making the cover member.

Abstract: A goods dispatch container having a superimposed lid for the dispatch of goods from the wholesale warehouse to the customer having two rows of ten marking points on the upper side of the lid which are provided with symbols and two are identified with additional marking pieces.

Abstract: A tensioning hoop for sealingly closing a container, such as a drum or barrel, with a matching lid; the hoop is made of an elongated metal member for substantially encompassing the periphery of the lid and the rim of the container aperture; the ends of the elongated metal member form a variable slot and are provided with two substantially flat members forming a hoop actuating device; one end of each flat member is pivotably connected with the flanged upper hoop portion near the slot and both flat members are pivotably connected with each other. The actuating device is shaped in conformity with the hoop so as not to protrude from the outer periphery thereof and can be operated repeatedly for removal of the lid from the container and for closing the container with the lid. The novel tensioning hoop provides for substantial cost reductions and is suitable for use in automated container packaging without manual operation of the actuating device.

Abstract: Readily available and normally discardable items are modified for attachment one to another as parts in constructing a desired structure. In one embodiment, the top of a twist-on type of bottle cap is extended to duplicate the threaded portion of a bottle top. In another embodiment, the bottom of a bottle cap is provided with a skirt having an annular groove on its inside surface. The top of the cap is provided with an annular flange designed to snap into the groove of an identical cap. The caps can be stacked by twisting one onto another (first embodiment) or snapping one onto another (second embodiment). Punch-outs are provided on the periphery of the caps to be used in combination with a fastening means, such as rivets, to attach the caps side by side. Beverage cans are provided with similar adaptations.

Abstract: A cover for containers and especially of the plastic snap-on type for drinking cups and the like is provided with a downwardly outwardly extending peripheral skirt. The skirt is in turn provided with a plurality of circumferentially spaced radially outwardly directed flutes as well as a plurality of alternatively adjacent inwardly directed detent portions or lands in part defined by the aforementioned flutes. Upper inner surface portions of the lands are adapted to engage the outer peripheral bead of the container which the cover is adapted to close while construction of the flutes simultaneously provides for a degree of limited circumferential expansion so as to accommodate the manufacturing dimensional tolerances in the container bead. The flute construction also enables major portions of the skirt to be upwardly outwardly flexed to further accommodate such dimensional variations.

Abstract: Disclosed is a lid for a container which is designed to allow drinking of the contents while the lid is in place and to prevent spillage of the contents. The lid includes a generally circular body member and a sealing edge located along the periphery of the body member. A raised platform is integrally formed on the body member and is bounded by the periphery of the body member and an upstanding wall portion generally defined by a chord of the body member. A flipper valve is located on the platform and is generally radially aligned and hinged near the wall portion. The valve includes an integrally formed protrusion which provides a place for application of downward pressure to open the valve. The valve is such that lip pressure is sufficient to cause the valve to open. The platform provides a flat area extending to the edge of the container which allows the lip to make a complete seal over the portion of the lid which it contacts.

Abstract: An improved disk memory dust shield having an exterior surface similar to the surface of the disk module housing which mates with it, thereby allowing a plurality of dust shields to be nestingly stacked with each other. This permits all the dust shields not currently in use because their disk modules are mounted in drives, to be compactly stored.

Abstract: A plastic closure with a U-shaped rim surrounding a closure portion, an upper wall of the rim extending both upwardly and downwardly from the closure portion and flaring outwardly away from the closure portion. The upper end of the inner wall joins into the base of the `U` shape and the lower end is resiliently flexible. When fitted to a container, upper and lower ends of the inner wall seal against the lip and inner surface of the wall of the container, resiliency of the inner wall of the closure ensuring its sealing engagement with the container wall.

Abstract: A container assembly comprising a container, a membrane closure, and an overcap wherein the membrane closure acts to restrain removal of the overcap. Also disclosed is a novel overcap especially suitable for forming such a container assembly.

Abstract: A disposable food tray and container system formed of at least a pair of container elements generally having an overall circular contour. The container elements include a central substantially planar member joined in one-piece formation to a rim element extending around the periphery of the planar section. The rim element has upper and lower elements with discrete apertures formed therethrough. The upper and lower rim elements are matingly interfaceable in order to provide a box-like structure. Upper and lower apertures may be aligned in a varying manner by slidable rotation of one element on another subsequent to the nesting interfacing and locking construction. By providing varying sizes of through openings determined by the position of the upper and lower apertures, the venting of vapors contained within the system may be adjusted as to the rate of dispersal to the environment.

Abstract: A tamperproof container and cap assembly in which the container carries a circumferential radially extending flange which cooperates with the skirt of the cap to prevent the cap from being removed until a portion of the cap skirt is removed. The cap skirt comprises an upper portion and a lower portion, with the lower portion forming a tear-off strip that is connected to the upper portion by means of vertically oriented stacking ribs. The ribs are dimensioned so as to allow a plurality of caps to be stacked upon one another. The lower portion of the skirt defines an opening which enables an operator to insert a tool therein and then to tear the lower portion away from the upper portion.

Abstract: A thin wall disposable plastic lid designed to stack with other substantially identical lids without compacting having a circular closure wall and a surrounding downwardly extending skirt. A pair of downwardly extending, closely spaced, annular ribs are formed in the circular closure wall, and a plurality of upwardly extending bosses are also formed in the closure wall and span the space between the ribs. The bosses engage the bottom of the ribs of the next upper lid in the stack when nested to prevent the lids from jamming together.

Abstract: The package comprises a container having an outwardly and downwardly convexly rolled top rim and an inwardly convexly curved bottom rim; and a closure having an inner wall generally conforming to the contour of the mouth of said container, a rim wall joined to said inner wall by a concavely contoured wall having a configuration which at least generally conforms to at least an outer portion of said curved bottom rim, and a skirt depending from the outer periphery of said rim wall. The closure can be provided with support lugs extending inwardly from said inner wall. The closure skirt can be provided with locking lugs to increase the contact with the bottom of said rolled rim. A stacking shoulder can be formed in the closure skirt. The inner wall can be joined to a diaphragm by means of an inclined camming wall.

Abstract: A molded box and lid have peripheral walls with opposite draft. The lid has hinge means for inward bending movement of at least portions of the lid sidewalls into hugging relationship with the outer upper surfaces of the box peripheral wall to compensate for the gap created by opposing draft angles.

Abstract: A unique container closure is disclosed which includes a flat top surface, a vertical side wall, and a sloping intermediate wall interconnecting the top and the side wall at an angle to the vertical. Interiorly of the closure are depending, radially inwardly extending reinforcement ribs which are integrally connected to the top surface, the intermediate wall, and the side wall for stiffening purposes. An annular depending rib is also contained on the interior surface of the intermediate wall, and the inner surface of the side wall has a recess, an inwardly extending annular flange, and a further recess adapted to engage a corresponding lip on the container per se.

Abstract: A stackable container lid for a bucket containing hot foods and the like comprising a generally circular lid having center portion surrounded by a series of polyhedrons, one plane of which extends upwardly at right angles from the lid surface thereby forming a perimeter into which the bottom of the bucket can be inserted. The lid may also contain vent holes in a rim on the outer perimeter of the container lid. The rim terminates in a downwardly extending lip adapted to snap over the top of the bucket in a sealing relationship.

Abstract: An intravenous tubing cap for sealing the end of a male tubing coupling or a female tubing coupling is provided by a plug having a tapered male fitting at one end being backed against a tapered female fitting at the other end. The plug may be molded in one piece with the back of the male portion forming a contiguous part of the female portion. Preferably, a serrated protective skirt around the male fitting provides a surface by which the cap may be grasped.

Abstract: Effective means for insuring predetermined axial spacing between parts in stacks, particularly in stacks of nesting, relatively large, thin-walled flexible parts and for maintaining positive alignment of the parts in stacks without causing undue difficulty when parts are being separated are provided. More specifically, plastic covers for plates or the like having specially constructed stack shoulders and stack stabilizers are provided.

Abstract: A small-scale habitat for the cultivation of earthworms is designed for the optimum production of live worms, eggs and worm castings. The habitat comprises a plurality of superimposed, stackable containers with perforated bottoms and inward projections at their upper flanges. These projections sustain the weight of the upper containers, admit air to each individual container and permit feeding and breeding activity by earthworms at all levels of the stacked assembly; the movement of the earthworms from one level to another being facilitated by the aforementioned perforations in the bottoms of the containers. The bottom-most container has an unperforated bottom and is adapted to hold water in a matrix of pebbles or crushed stone for the control of the moisture content of bedding, suitably peat-moss or coarse earth, in the superior containers.

Abstract: The invention provides a float member for use in conjunction with similar float members for substantially completely blanketing or covering the surface of a liquid to reduce evaporation, and/or to suppress waves, the emission of noxious or toxic fumes and the formation of foam. The float member comprises a body having a hexagonal circumferential skirt or wall at least 0.2 inches (5mm) in depth and is so shaped and/or weighted that it tends to flaot in only one of two dispositions with its hexagonal skirt disposed at the level of the liquid with such skirt extending substantially at right angles to the surface of the liquid.

Abstract: A disposable plastic lid for a container includes a generally round closure wall and a depending peripheral skirt for engagement with the container. The closure wall includes an improved stacking facility by which a plurality of such container lids may be stacked one on top of the other in a manner which precludes the stacked lids from being jammed together. The stacking means also retards materially any tendency for the lids in the stack to slip sideways with respect to each other which provides a very stable stack without supplementary supports.

Abstract: A cap for a caulking cartridge of the type having an elongated dispensing spout extending generally coaxially outward from one end thereof. The cap includes a spout receiver which, when the cap is in position, closely embraces a portion of the elongated spout to prevent undesired emission and hardening of the caulking or the like compound during cartridge storage between uses. The cap also includes a resilient u-shaped bead receiver for closely engaging the end of the caulking cartridge adjacent the dispensing spout and structure releasing the cap from its engaging position. The releasing structure may also be used for conveniently hanging the cartridge during storage. The cap is dimensioned so at least the outermost end may be received in another, substantially identical cartridge at the opposite end from its dispensing end for ease of packing, shipping and shelf storage purposes as to a substantial number of the cartridges having the caps. A forming blade may be attached to the side of the cap.