Abstract: A retention ring is configured to retain components within a transmission assembly. The retention ring has an annular main body defining an opening through a center thereof. The annular main body defines an outer curved surface and an inner curved surface, the annular main body having a distal face disposed in a distal plane and a proximal face disposed in a proximal plane. A first set of retention features extend from the inner curved surface, and a second set of retention features from the outer curved surface. One of the sets of retention features is configured to engage a backing plate or an outer member, and at least one of the sets of retention features is entirely disposed between the proximal plane and the distal plane. A transmission assembly includes the retention ring and an adjacent external snap ring.

Abstract: In one aspect, a circlip includes a circlip body defining (i) a first end surface, (ii) a second end surface spaced circumferentially from the first end surface so as to define a gap between the first and second end surfaces, and (iii) an outer curved surface defining an outer perimeter of the circlip body. The outer curved surface extends from the first end surface to the second end surface. Further, the circlip includes at least one row of teeth defined at the outer curved surface, and extending from at least one of the first and second end surfaces circumferentially along a direction away from the gap. When installed in a circlip groove, the teeth engage the circlip groove to limit rotation of the circlip within the groove.

Abstract: An apparatus for sealing a panel opening includes a plug body including an interior portion and an exterior portion. The exterior portion of the plug body includes a pair of opposed sealing surfaces forming an annular ring. The apparatus also includes a locking blade extending from the interior portion of the plug body across the exterior portion of the plug body. The locking blade is configured to rest in a first position disposed within the annular ring and a second position extending beyond the annular ring.

Abstract: The present invention relates to a sealing device designed for sealing a fuel inlet opening of an aircraft engine and to an aircraft engine provided with such a sealing device. The invention further relates to a method for sealing a fuel inlet opening of an aircraft engine.

Abstract: A lid for a paint can having a lid base which is threadably mounted to a mating ring dimensioned to overlie the can chime on the paint can. A seal constructed of a flexible and compressible material is carried by the mating ring and, upon rotation of the mating ring relative to the lid base between an open and a closed position, the mating ring compresses the sealing ring against the can chime to complete a fluid seal.

Abstract: A sealing plug for sealing a hole in a wall, which sealing plug is insertable into the hole by access from only one side thereof, which sealing plug comprises: a radially expandable body which is radially expandable by access thereto from only one end thereof, and a sealing cap which covers the other end of the expandable body and extends therefrom along the exterior of the length of the body, the sealing cap being of a material which is fluid resistant; whereby, when the sealing plug has been inserted in the hole and has been radially expanded so that at least part of the sealing cap adjacent the wall of the hole expands and engages therewith, the sealing cap is secured in the hole with the sealing cap sealing the plug body against access thereto from outside the cap.

Abstract: A lift apparatus and method include, in a structure with a lid, a lift arm connected with the lid and with a lift pivot. A movement arm with a flexible connection with a first end and a second end is provided where the first end of the flexible connection is connected with the lift arm and where the second end of the flexible connection is connected with the movement arm. And an actuator is connected with the movement arm for selected movement of the arm and thus the lid.

Abstract: An anchor mount formed of a stopper having a thrust flange joined to a first end of a stem portion with an axial bore extending there through and a centering portion inclined between an overhanging portion of the flange and the stem portion; a part-spherical coupler presented on the stopper thrust flange opposite from the stem portion; a substantially resiliently deformable plug having an axial bore extended there through; an elongated shaft extendable through the respective axial bores of the stopper and the plug and having a threaded portion thereof extendable from a second end of the plug; an end cap having with an axial bore there through and being structured with an anti-rotation mechanism operable for resisting rotation of the end cap relative to the plug; and a mechanism for reversibly moving the end cap along the elongated shaft relative to the stem portion of the stopper.

Abstract: The present disclosure provides a multiple-compartment insulated food tray and lid for storage and service. The insulated food trays allow for two or more stacked strays to be mechanically unified using the weight of the top tray on the bottom tray in any orientation where the weight of the second tray remains on the first tray. In another embodiment of the present disclosure, a polymer with foam and blowing agents are used during the molding process to create in a first phase a hard shell in contact with the mold. In a second phase, insulation is created in the hard shell by thermal treatment and expansion of the residual polymer inserted in the mold. In a third embodiment of the present disclosure, the insulated food trays, when stacked, can be placed in a nondiscriminatory arrangement.

Abstract: Methods and devices for preventing temperature and pressure extrusion failure in o-ring seal assemblies. One embodiment employs a bore in the plug so that the thin wall of the plug flexes outward at high pressures to partially fill the gap between the chamber member and the plug where the o-ring is located, thereby preventing the o-ring from extruding through the narrowed gap. A second embodiment utilizes a plug of a higher coefficient of thermal expansion than the chamber member that expands outward slightly at high temperatures, thus partially filling the gap. A third embodiment secures the o-ring in the gap between a backup ring and a retaining ring, and the backup ring has a higher coefficient of thermal expansion than the plug and chamber member. At high temperatures the backup ring expands to partially fill the gap. Additional embodiments are created by combining these three embodiments.

Abstract: An activating device activates a cover for the opening face of a container. Pivot arms are fixed to a pivot unit equipped with an electric motor through a reduction gear at one ends, and fixed to plate springs at the other ends. One end portions of the plate springs are fixed to the respective front and rear portions of the cover, the other end portions thereof are fixed to the other ends of the pivot arms. The resiliency of the plate spring is set lower in the vertical direction of the container. The plate spring is bent from its other end portion toward its one end portion at substantially 90° or larger of bending angle. The plate spring is formed so that it bends toward the inside of the center of the cover between the pivot arm and the cover.

Abstract: A plug for sealing and resealing the passages for heating and cooling liquid in a casting mold. The plug includes a stainless steel socket head NPT plug which is screwed into the passage to seal it. Inboard of the plug there is mounted a resilient expandable silicone tubular element that is expanded by squeezing it to further seal the passage.

Abstract: A container lid locking ring is provided to secure the lid of a container to the container and lock one container on top of another. The locking ring comprises a cylindrical ring having a first projection for engaging a recess in the lid of a first container and a second projection, having a finger-like projection, for locking about the rim bead of the container. The locking ring further comprises a seat on which an over disposed container may be placed and a third projection, having a finger-like projection, for locking about the bottom rim bead of the over disposed container. The locking ring may further comprise a fourth projection, providing added locking support and sealing capabilities. In the use of the locking ring, containers may have their lids securely locked onto the container and containers may be securely stacked one on top of another for transportation, storage and display.

Abstract: An expandable modular container system. A plurality of container modules stacked one on top of the other are coupled together by a plurality of exterior coupling units coupled both to each other in a column and to the container module on opposing sides of the container modules. The container modules can be quickly and securely coupled one on top the other, thereby achieving a stable and space saving arrangement. The coupling units also serve to protect the container module from damage caused by collision between modules.

Abstract: Stackable trays and methods for stacking the trays are disclosed. A stackable tray has two side walls, each wall having a top channel along its top edge and a bottom channel along its bottom edge, each channel having an inner and an outer channel wall, where the width of two adjacent top channel outer channel walls is less than the width of the bottom channel, whereby two such top channel walls may slide into a bottom channel of a stackable tray of like kind, and where the width of two adjacent bottom channel outer channel walls is less than the width of the top channel, whereby two such bottom channel walls may slide into a top channel of a stackable tray of like kind.

Abstract: A system especially well suited for punches and dies employed in pharmaceutical tableting procedures is described. Punch trays, nesting one on top of another, have support rails which provide nesting segments for securing the punches. The punch trays include side rails which position the punch away from the inside surface of the side walls to allow for thorough cleaning and run off. The die cavity includes a nesting rail which pitches the die at a slight angle to facilitate cleaner fluid run off. A substantial portion of the surface area of the punches and dies remain fully exposed, making for simplified inspection and cleaning procedures. The trays are secured together by front and back snap-on side cover handles.

Abstract: A waste processing apparatus which can easily and efficiently process waste, a waste recovery system using this apparatus and a liquid container ideal for use with the waste processing apparatus and waste recovery system. The waste processing apparatus comprises a processing part for processing supplied waste (for example foam polystyrene) with a processing liquid (for example limonene) and a storing part for storing produced liquid (for example limonene containing dissolved foam polystyrene) produced in this processing part and provided with a removable liquid container constructed to both supply processing liquid to the processing part and receive produced liquid produced by the waste processing apparatus.

Abstract: The housing for network products comprises at least one slot provided on a first surface and a transparent panel provided on a second surface; a raised portion provided on a third surface adjacent to the second surface, including a first fingernail shaped recessed portion having a first slot provided thereon; a wave shaped recessed portion, provided on the third surface adjacent to the first surface, having a plurality of spaced apart first recessed portions provided along an edge of the elongated recessed portion opposite to the first surface, and a plurality of passages, each having at least one through hole, provided along the edge corresponding to each of the first recessed portions; a first fingernail shaped raised portion corresponding to the first fingernail shaped recessed portion having a first riser provided on a fourth surface adjacent to the second surface; and a plurality of second fingernail shaped raised portions provided on the fourth surface.

Abstract: An apparatus for blocking a hole, especially for blocking a passageway within a mold. The apparatus includes one or more tapered members received within recesses of an expandable sleeve. As the one or more tapered members are drawn within the sleeve by a fastener, the outer diameter of the sleeve expands so as to substantially block the hole. The apparatus also includes a surface with threads that are the opposite hand of the threads of the fastener. This second set of opposite hand threads permit holding and placing the apparatus within a location of the hole, and also for reacting the torque applied by a second tool used to tighten the fastener.

Abstract: A container for dispensing a product is provided. The container is a generally parallelepiped container including first and second lateral, opposite side panels and first and second longitudinal, opposite side panels. Each side panel is interconnected with adjacent side panels, and each side panel has a lower and an upper edge. A bottom panel extends from and interconnects the lower edges of each of the lateral and longitudinal side panels. A top panel extends from and interconnects the upper edges of each of the lateral and longitudinal side panels. A dispensing neck extends generally upwardly from the top panel. A cover member is removably disposed over the dispensing neck. The bottom panel has a recessed area which includes a first groove and a second groove. An intersection of the first and second grooves is generally aligned with the dispensing neck.

Abstract: A dual bucket assembly (10) comprises a dual bucket (20) including first and second containers (30,50) adapted for holding liquid, a connecting member (70) and a bail (80). Each container includes a peripheral wall (31,51) having an upper end (32,52) having a top edge (33,53), a proximal portion (34,54) adjacent the other container and a non-proximal portion (37,57). Connecting member (70) rigidly connects in a spaced apart relationship upper ends (32,52) of peripheral walls (31,51). Peripheral walls (31,51) are downwardly inwardly sloping such that a plurality of dual buckets (20) are nestable. The top edge (33,53) of each non-proximal portion (37,57) is smoothly arcuate. Peripheral walls (31,51) and connecting member (70) are adapted for simultaneously pouring liquid contents from both containers (30,50) into separate storage vessels.

Abstract: A theft prevention device is provided for an anhydrous ammonia tank having a feed pipe with an open end. The theft prevention device includes a plug body which is inserted into the open end of the feed pipe. The plug body includes a flexible member which can be expanded by a keyed lock actuator so as to engage the interior of the feed pipe and prevent removal of the plug member. Locking and unlocking of the plug member to the interior of the feed pipe can be accomplished only by use of a key having a predetermined configuration which fits the keyed lock actuator.

Abstract: A closeable shipping container for containment of a plurality of flowers with stems which includes separated protective bud-containing housings and/or separate stem supports. The container is made of plastic, or other lightweight, but strong materials. The container is dimensioned so that the volume it occupies, per dozen flowers, is most economical to ship.

Abstract: A combination shipping/display container that has gripping surfaces in two planes associated with the end walls of the container such that lifting of the container is facilitated for placing the containers on their bottom walls for shipping and for placing the containers on their side walls for display purposes.

Abstract: A see-through display case has a plurality of compartments for storing, displaying and transporting a plurality of collectibles. Each case has an open front face which is closed by a clear plastic cover hinged to the front edge of the top surface. A case may be attached to vertically adjacent cases by means of a pair of tongue and groove interlocks integral to both the top and bottom surfaces and to laterally adjacent cases by a tongue on one case and a groove on the adjacent case to form a unit of interconnected cases. Each of the interlocks is activated by sliding a first of the adjacent cases front to back relative to the other adjacent case. An array of cases as large as two by two can be transported using an attachable handle which can be connected to the uppermost, centrally positioned pair of tongue and groove interlocks.

Abstract: A tooling utility system especially well suited for punches and dies employed in pharmaceutical tableting procedures is described. Punch trays, nesting one on top of another, have support rails with oppositely positioned arcuate cut-outs which provide nesting segments for securing the punches during transport and storage. Dies, placed within a cavity including a die support, are similarly secured in position. A substantial portion of the surface area of the punches and dies remain fully exposed, making for simplified inspection and cleaning procedures, including placing the vertically nesting trays directly into a sonic cleaner. The trays themselves form the outer structure of the tool system, secured together by hinged side covers or front and back snap on side covers. A unique tongue and groove interlocking arrangement is described which is disposed upon the top and bottom surfaces of the trays.

Abstract: A stacked container assembly includes a variable number of stacked modular containers, and an engaging unit and a fastening unit provided on each container to permit the containers to connect with one another. The container assembly holds an electrical power supply assembly which includes a plurality of electrical power supply units respectively received inside the stacked containers, and an electrical control device electrically connected to the electrical power supply units and received inside a control box mounted on the top or bottom of the stacked containers.

Abstract: A holder for nestable, stackable drinking cups comprises a tray having openings for receiving the cups in upright position such that they may be filled with liquid. A retainer on the tray which is substantially identical in form to the drinking cups is adapted to receive and support the lowermost cup of a stack of nested cups. The tray is supported in a pan in spaced, parallel relation above the bottom wall of the pan.

Abstract: A system comprised of trays is disclosed for converting a bucket to an organized receptacle for storing, carrying and dispensing tools and small parts or objects. Each of the trays is configured substantially as a modified circle so that it can be stacked neatly within the bucket. Each tray has partitions which divide the tray into compartments. Each tray has a partially recessed handle in the center of each tray in a configuration enabling them to be grasped readily by the fingers of a user, even when the tray is filled. Each individual tray is thereby readily removable. The trays can be stacked so that they are either recessed within the tray laying beneath it or can rest on the top edge thereof. In the preferred embodiment of the invention, the trays are provided in variable vertical dimensions with at least two of the upper trays having a pie-shaped wedge removed therefrom thereby providing for the storage of vertically elongated articles therein.

Abstract: A cascadable modem apparatus includes a modem housing having a top and a bottom. A plurality of angled feet are attached to the housing bottom in cantilever fashion to define a distal portion of each foot. The feet serve both to support the modem on an platform as well as to attach the modem to a similarly configured, adjacent modem assembly. In the preferred embodiment, a plurality of receiving slots are defined in the housing top and are correspondingly disposed to receive the distal portions of a plurality of angled feet from an adjacent modem housing. In this way, insertion of the distal portions of the feet snugly into the receiving slots of an adjacent modem effectively attaches the two adjacent modem assemblies. Preferably, a resilient locking tab is attached to the housing bottom in cantilever fashion to define a distal portion directed away from the housing bottom. As a result, the tab is responsive to force applied to the distal portion to flex inwardly toward the housing bottom.

Abstract: The invention concerns a transport device for dangerous goods containers and a process for securing dangerous goods containers inside a transport container. The transport device comprises an ISO container and a system for securing the dangerous goods containers within it. According to the invention, the system comprises: a first set of moulded units (10) which lie adjacent to one another and form a first receiving surface which completely occupies the floor of the container and has openings (12) into each of which the bottom section of a dangerous goods container (2) fits precisely; and a second set of moulded units (20) with openings (21) into each of which the top section of a dangerous goods container fits precisely and so designed that, when fitted adjacent to one another on the dangerous goods containers on the first receiving surface, they form a second receiving surface which completely occupies an intermediate level of the container parallel to the floor.

Abstract: A drawer organizer assembly including a plurality of releasably interlocked juxtaposed containers, each container having a bottom wall and a plurality of interconnected side walls open at the top. A peripheral ledge surrounds each open top having a plurality of spaced corners, each ledge having an cut-out section at each of the corners with one ledge of one container abutting against the ledge of an adjacent container. A plurality of connectors are disposed in certain ones of the cut-out sections, the connectors mounted in the cut-out sections of one container which abuts against adjacent cut-out sections of another container being connected to both of the containers at the abutting cut-out sections.

Abstract: A pizza pan system includes a pizza pan including a bottom wall, a side wall circumferentially about the bottom wall such that the bottom wall and side wall cooperate to define an area for containing pizza dough, and a rim circumferentially about the outer edge of the side wall; and a lid-like member mating with said rim enabling pizza dough to be compressed between said lid-like member and said rim to produce single-crusted, fold-over or double-crusted pizzas. The system allows storage of panned pizza dough within a substantially air tight chamber. The pans of the system can be stacked to economize on countertop or storage space. The area for confining pizza dough allows, in conjunction with a trimming means, consistent reproduction of aesthetically pleasing pizza shapes. A method of preparing pizza includes rolling dough, placing the dough in a pizza pan, and placing a lid over the pizza pan to compress, shape, conform and trim dough about a rim area of the pizza pan and lid.

Abstract: A stackable and nestable full-depth case for bottles having a floor structure for supporting a plurality of bottles thereon, a plurality of vertical columns extending upwards from the floor structure, a rim connecting the plurality of columns, and a bifurcated cover hingedly connected to an upper edge of the rim and positionable in open and closed positions over the bottles. The bifurcated cover includes a ceiling and a plurality of separating projections depending from an under surface of the ceiling. The separating projections engage the bottles when the cover is in the closed position thereover such that the bottles are retained in an upright position. Each separating projection is generally semi-cylindrical in shape and surrounds at least a portion of the top of each bottle. In a preferred embodiment, each separating projection includes an inner semi-cylindrical wall, an outer semi-cylindrical wall, and a sloping, semi-circular collar element connected therebetween.

Abstract: The package comprises a container made of resilient molded plastic that contains an impression and lid. The impression is located in the bottom of the container. The impression comprises two concentric cylindrically shaped tubes, a ring that connects the tubes and a closure. The lower tube has a larger diameter. This lower tube is attached to a ring along the ring's outside edge. The inner edge of the ring is attached to the upper, smaller-diameter tube. The tubes are identical to the diameters of two sizes of bottle caps. Bottles with caps can then be inserted into the tube. The invention then holds the container on top of the bottle. The lid of the container is removable and reattachable and forms an air-tight seal.

Abstract: A bung hole plug formed of resilient synthetic material interfitted between a front and back plate. A threaded post is attached to the back plate, and used, in conjunction with a lock washer and nut, to draw the front and back plates together, thereby squashing the resilient plug against the side walls of the bung hole to maintain a fluid tight seal.

Abstract: Containers of two different capacities can be stacked on a closure which can be used with either container. The closure has a top panel with an inner stacking area contoured to receive and provide stability to a container having a bottom of one diameter, and an outer stacking area contoured to alternatively receive and provide stability to a larger container having a bottom of a different, larger, diameter.

Abstract: A housing assembly includes a high-profile basic unit and low-profile expansion unit. The basic unit has a recessed portion on its upper surface and a pair of grooves respectively extending vertically along its opposite sidewalls. A pair of connecting members equal in length to the grooves of the basic unit are normally received into these grooves. The expansion unit is formed on its bottom surface with a base portion and a pair of grooves respectively extending vertically along its opposite sidewalls. The base portion of the expansion unit is engageable into the recessed portion of the basic unit. The grooves of both basic and expansion units have an equal width. A pair of vanity members equal in length to the grooves of the expansion unit are normally fitted into these grooves.

Abstract: A method of removing body fluids from a patient and disposing of the body fluids, the method comprising the steps of (a) providing a container including a bottom wall having therein a drain, (b) providing a drainage device for automatically opening the drain and draining the contents of the container, (c) collecting body fluids in the container, (d) placing the container on the drainage device, and (e) operating the drainage device so that the drainage device opens the drain and drains the contents of the container.

Abstract: A suction canister including a patient port, a vacuum port, a chamber, and a protrusion including a thin portion which defines a passageway, the passageway extending into the chamber such that the protrusion can be broken to provide communication between the passageway and the chamber to enable draining of fluid from the suction canister.

Abstract: A food-service kit and method includes a plurality of similar or diverse-type containers wherein the containers may be coupled together in various configurations to form toy-like assemblies. The respective containers include compatible projection and socket configurations so that they may be joined together as building blocks in order to create the toy-like devices.

Abstract: A cover is provided for placing over an article fixed to a surface. The cover is particularly useful for covering a fire hydrant and identifying the fire hydrant in the winter months in a climate accustomed to great depths of snow which normally would cover or otherwise conceal the fire hydrant. The cover has an open end and a closed end with an interior volume formed therebetween for enclosing the fire hydrant. The cover includes a strap or the like for securing the cover to the article being covered to prevent the cover from being removed from covering the article.

Abstract: A vessel pressure testing apparatus includes a safety retainer unit. An expanding plug unit is secured within a tubular outlet pipe of the vessel with a clamping bolt extending outwardly from an expanding rubber plug member. An attachment plate is secured abutting the outlet pipe with the clamping nut bearing on and locking the plate to the pipe and plug unit. A locking plate has a central opening larger than the external diameter of the pipe, and is passed over the pipe. A loop connector has one loop passed through an opening in the attachment plate and a second loop passed through a similar opening in the locking plate. The locking plate is located with the inner end spaced axially inwardly on the pipe relative to the outer end which is connected to the locking plate. Pressure is then applied to the vessel, and if the test plug fails for any reason, the plug unit tends to move from the pipe end.

Abstract: A beer container comprising a metal, pressure-resistant barrel (1) for beer and a block-shaped housing (2) surrounding the barrel, which housing has a bottom surface whose dimensions correspond to those of a conventional crate for beer bottles and, at the top and bottom sides thereof, comprises means (3, 4) for enabling it to be stacked with housings of corresponding beer containers, and each barrel comprising a fluid coupling (6, 7) for enabling the interior thereof to be coupled with the interior of the barrel of a superjacent and/or subjacent container. Through these measures, a beer container is obtained that can readily be displaced and transported in a compact stack, and the user may realize one single container with the desired capacity by coupling a number of stacked containers.

Abstract: A suction canister including a patient port, a vacuum port, a chamber, and a protrusion including a thin portion which defines a passageway, the passageway extending into the chamber such that the protrusion can be broken to provide communication between the passageway and the chamber to enable draining of fluid from the suction canister.

Abstract: A stack of containers is formed from a container system. The system includes a plurality of open-topped containers each adapted to be selectively stackable or nestable with like containers. First containers are of relatively large plan. Second containers are of smaller plan. Thus, large containers can stack or nest with large containers. Small containers can stack or nest with small containers. Additionally, small containers are adapted to allow two smaller containers to form a layer in the stack which includes at least one larger container. The smaller containers are supported at the edges of the large container and reach toward the middle, where they engage one another to form a locked cantilever-style bridge.

Abstract: A snap bar connects containers for storing and transporting multiple compact discs and other thin, flat objects. The multiple disc apparatus has multiple identical containers that are connected together by snap bars to form a stack configuration. Each container has a four-sided tray. Connected to a first end is an end cap that is hinged to the first side. A snap bar with an outward opening receiver is connected to the base of the tray. Two containers are connected by inserting the end cap of a first container into the snap bar of a second container. Tabs on the cap engage apertures in the snap bar, establishing a strong connection. The cap hinge then becomes the container hinge. Once connected the base of each container works as a cover for the underlying container. The compact discs or other flat objects can be reached by lifting the container above to the container where the object of interest is located.

Abstract: A unitized, stable stacking system with a tier sheet stabilizer is provided, along with a method for stacking containers. The tier sheet includes a substantially planar top surface, a bottom surface, peripheral retainers disposed about and extending away from the top and bottom surfaces, respectively, and a plurality of protuberances extending downwardly away form the bottom surface such that said protuberances engage the sidewalls of each container to secure the tier sheet to the containers positioned below the tier sheet. The protuberances are positioned so that the tier sheet can be utilized with several different container layering patterns.

Abstract: A module is sandwiched between an underlying member and a superimposed enclosure. The underlying member may be a base or another enclosure. The module is constructed so that it can be secured to the underlying member. The superimposed member has feet formed with horizontal grooves which fit into pockets in corners of the module. A slide is horizontally movable in the module between retracted position and an operative position. In the operative position edges of the slide engage in the grooves in the feet to lock the superimposed enclosure to the module and thereby to the underlying member. The slide may be detachably secured in operative position.

Abstract: A pyramidal display stand for displaying a multi-tiered arrangement of flowers. The display includes a plurality of bedding trays mounted to a multi-tiered frame. The bedding trays are securely seated on the frame by symmetrically distributed tabs on the frame tiers cooperating with depressions built into the bottom of the trays. The bedding trays can be designed to include numerous geometric shapes including circular, rectangular, oval, hexagonal, and semicircular. Runoff water is collected by a slidably mounted collecting drawer attached below the bottom bedding tray or mounted in the bottom tray itself.