Abstract: A bakery tray includes a base member with a front end and a back end, and a pair of sidewalls extending upward from the base member and opposing each other between the front end and the back end of the base member. The sidewalls each have a pair of stacking blocks and a top rail with a pair of low stack recesses therein. The pair of stacking blocks includes a front block positioned a first distance from the front end and a rear block positioned a second distance from the back end. The pair of low stack recesses includes a front recess spaced from the front end by a distance corresponding to the second distance and a rear recess spaced from the back end by a distance corresponding to the first distance. By this structure, bakery trays are stackable in a low stack orientation and a high stack orientation.

Abstract: A collapsible container includes a rectangular bottom wall and a plurality of walls pivotally connected to the bottom wall. The plurality of walls include first and second side walls disposed in facing relation and first and second end walls disposed in facing relation. An access door is provided in the first end wall. The access door is pivotable between a closed position and an open position. The first side wall is collapsible from an upstanding position to a collapsed position overlaying the bottom wall, the second side wall is collapsible from an upstanding position to a collapsed position overlaying the collapsed first side wall, and the first and second end walls are collapsible from an upstanding position to a collapsed position overlaying the second side wall.

Abstract: A hinge pin lock for a molded plastic container includes a locking tab molded with an upper rim of the container and connected to the upper rim by a living hinge. The locking tab is pivotable from an open position to a locked position. A channel is formed in the upper rim and is sized to receive a hinge pin of a container lid. The channel includes engagement structure that secures the locking tab in the locked position.

Abstract: A hinge pin lock for a molded plastic container includes a locking tab molded with an upper rim of the container and connected to the upper rim by a living hinge. The locking tab is pivotable from an open position to a locked position. A channel is formed in the upper rim and is sized to receive a hinge pin of a container lid. The channel includes engagement structure that secures the locking tab in the locked position.

Abstract: A collapsible container includes a main frame and at least one pivotable side wall that is pivotable between a collapsed position and an opened position. The pivotable side wall is provided with a spring lock insert secured therein and biased toward a lock position in which a lock portion of the spring lock insert extends beyond an end edge of the pivotable side wall. The main frame includes a latch opening that receives the spring lock insert when the pivotable side wall is in the opened position.

Abstract: A hinge assembly incorporates a substantially straight hinge pin for securing a lid to a container. At least one end of a hinge line is initially closed via a plastic wall. The substantially straight hinge pin is secured in the hinge line via passing the hinge pin through the plastic wall. Subsequently, residual axial and radial stresses caused by passing the hinge pin through the wall cause the opening to contract, thereby retaining the pin. By providing a hinge assembly including a substantially straight hinge pin, the assembly process can be more easily automated.

Abstract: A hinge assembly incorporates a substantially straight hinge pin for securing a lid to a container. At least one end of a hinge line is initially closed via a plastic wall. The substantially straight hinge pin is secured in the hinge line via passing the hinge pin through the plastic wall. Subsequently, residual axial and radial stresses caused by passing the hinge pin through the wall cause the opening to contract, thereby retaining the pin. By providing a hinge assembly including a substantially straight hinge pin, the assembly process can be more easily automated.

Abstract: A collapsible plastic container includes a top perimeter, a bottom and a plurality of sidewalls formed in a generally rectangular configuration. At least one of the sidewalls is pivotable between a collapsed position and an opened position. An engaging portion of the pivotable sidewall includes a first opening therein, which is disposed adjacent a receiving portion of either the top perimeter and the bottom including a second opening therein in the opened position. The first and second openings are relatively positioned such that they are aligned when the pivotable sidewall is in its opened position. A locking lug is positioned such that it is extendible into the aligned openings of an adjacent container when the container and the adjacent container are in a stacked arrangement. A lid may also be provided including a second locking lug. The structure ensures that the sidewalls are securely held in their vertical position to thereby ensure that the container will bear its maximum load.

Abstract: A collapsible plastic container includes a top perimeter, a bottom and a plurality of sidewalls formed in a generally rectangular configuration. At least one of the sidewalls is pivotable between a collapsed position and an opened position. An engaging portion of the pivotable sidewall includes a first opening therein, which is disposed adjacent a receiving portion of either the top perimeter and the bottom including a second opening therein in the opened position. The first and second openings are relatively positioned such that they are aligned when the pivotable sidewall is in its opened position. A locking lug is positioned such that it is extendible into the aligned openings of an adjacent container when the container and the adjacent container are in a stacked arrangement. A lid may also be provided including a second locking lug. The structure ensures that the sidewalls are securely held in their vertical position to thereby ensure that the container will bear its maximum load.

Abstract: A container that is preferably formed entirely of molded plastic materials includes a container body and a lid secured to the container body via a hinge assembly. The hinge assembly includes a hinge pin having a head and a shaft, where the hinge pin head has a maximum diameter substantially matching a maximum diameter of the shaft. With this construction, the container assembly can be easily and cost-effectively automated.

Abstract: A collapsible plastic container includes a top perimeter, a bottom and a plurality of sidewalls formed in a generally rectangular configuration. At least one of the sidewalls is pivotable between a collapsed position and an opened position. An engaging portion of the pivotable sidewall includes a first opening therein, which is disposed adjacent a receiving portion of either the top perimeter and the bottom including a second opening therein in the opened position. The first and second openings are relatively positioned such that they are aligned when the pivotable sidewall is in its opened position. A locking lug is positioned such that it is extendible into the aligned openings of an adjacent container when the container and the adjacent container are in a stacked arrangement. A lid may also be provided including a second locking lug. The structure ensures that the sidewalls are securely held in their vertical position to thereby ensure that the container will bear its maximum load.

Abstract: An animal drinking cup or bowl is provided which is constructed so that water being dispensed from a nipple drinker mounted by the cup or bowl will move to a location remote from the drinker actuator, encouraging the animal to drink from a remote pool of water, and thereby reducing water waste and spillage. A metal cup or bowl body mounts the nipple drinker so that the pin actuator is at a first location, and the cup or bowl body has a slanted bottom portion adjacent the first location and leading to a pool-defining portion at a second location remote from the first location. The second location is preferably sufficiently remote from the first location so that an animal (such as a piglet) using the drinking cup or bowl substantially cannot activate the pin when simultaneously drinking out of the pool-defining portion. The slanted bottom portion may make a substantially uniform angle of about 4-10.degree.

Abstract: A collapsible box is manufactured simply and inexpensively, and can support hanging files in a secure manner. The box components are all constructed of plastic, and pivotal connections between all of the components (to provide for the collapsing and erecting action) are provided solely by plastic pivot pins integral with the plastic components, and pivot pin receiving openings formed in the plastic components. The pivotal elements snap together and are disassemblable, so that the container may be easily assembled together and may be taken apart without the necessity of removing accessory elements that have been specifically inserted to pivotally connect the components together. Metal bars for supporting hanging files are thenselves supported by channel defining elements extending inwardly from end panels of the box. The channel defining elements have closed sides and a closed bottom, and a closed end defined by the end panel.

Abstract: A nipple drinker for poultry or the like has a body constructed of thermoplastic acetal (e.g. DELRIN.RTM.) so as to minimize the amount of metal utilized while providing excellent longevity. The drinker includes a valve seat, valve pin, and ball all of metal, such as stainless steel. The head of the valve pin typically is essentially flat, in which case the height of the head is about 1.7 mm when the annular spacing between the circumferential periphery of the head and the valve seat is between about 0.07-0.08 mm. Each and every drinker is individually tested for the integrity of the valve seal, the integrity of an O ring seal, and to determine the amount of water it delivers. Accepted drinkers are classified according to the number of drops of water they will deliver per unit time in use based upon the testing.

Abstract: A collapsible box is manufactured simply and inexpensively, and can support hanging files in a secure manner. The box components are all constructed of plastic, and pivotal connections between all of the components (to provide for the collapsing and erecting action) are provided solely by plastic pivot pins integral with the plastic components, and pivot pin receiving openings formed in the plastic components. The pivotal elements snap together and are disassemblable, so that the container may be easily assembled together and may be taken apart without the necessity of removing accessory elements that have been specifically inserted to pivotally connect the components together. Metal bars for supporting hanging files are themselves supported by channel defining elements extending inwardly from end panels of the box. The channel defining elements have closed sides and a closed bottom, and a closed end defined by the end panel.

Abstract: An inexpensive poultry watering system allows water to be supplied under very low pressure (e.g. a 2 inch head) to nipples or similar water dispensers, without the use of a regulator. Relatively high pressure water is fed into a float box, with a float valve assembly in the box valving the water as it flows into the float box, to establish a level of water in the box. An outlet opening from the box is connected to an elongated (e.g. 8 foot-10 foot) conduit which has the nipples, or other water dispensers, spaced along it. The conduit is suspended by conventional hangers, The float box needs no additional support, being connected to the conduit by a short pipe section and collar. A ballast/support pipe may be mounted above the conduit. The plastic float box has an anti-roost ridge at the apex of its top, and its bottom is sloped from the inlet toward the outlet.

Abstract: A poultry drinker includes a headless bell with a replaceable cartridge assembly for operatively attaching the bell to a conventional valve and a stand or a ballast. A flat annular support surface at the headless top of the bell cooperates with an annular support surface of the cartridge assembly, and a nut engages external threads on a tubular body of the cartridge assembly to clamp the bell annular support between itself and the cartridge annular support. An internal shelf in the cartridge to operate the valve, water passage openings are formed in the tube above the shelf, and the tubular body is connected to the valve by threads or the like. A flange radially extending from the cartridge adjacent the cartridge annular support is received by a cutout in the bell annular support to prevent rotation between the bell and cartridge. A screw-threaded post operatively attached to the shelf and extending through the cartridge annular support member provides attachment to the stand or ballast member.