Abstract: A pet waste containment system, or litter box, that is easily accessed by animals of all ages, and that provides for improved litter containment, maintenance and odor control is disclosed. The waste containment system includes a base, including a litter container, that is accessed by an inclined member such as a ramp or steps. The inclined member may include at least one undulation or litter collecting elements, and at least the litter container is preferably covered.

Abstract: An animal litter box system including a solid litter base box and a litter sifting box having perforations in its bottom for sifting litter. The sifting box is adapted to nest or stack in the base box. Opposing outer portions of the sifting box bottom are inwardly sloped at an angle which is less than 90.degree. relative to the bottom of the box and the sifting perforations are confined between these sloped opposing outer portions.

Abstract: A litter box is provided having a litter-holding tray supported over a urine-collection cavity. The litter is contained within a disposable element which generally lines the tray. The disposable element and tray are permeable by liquids so that liquid waste falls from the litter cavity to the lower urine-collection cavity. The disposable element may be lifted and disposed of, along with the litter, in a clean and sanitary manner which avoids touching of the litter. The top, bottom container and tray are stackable and securable together in an easily disassemblable manner. The disposable element is preferably made of a biodegradable material including cornstarch and soy protein or a suitable biodegradable paper.

Abstract: A box having a rectangular base with short upstanding front and rear walls and long upstanding side walls therebetween with an open top. The box also has a small rectangular opening in the front wall for the passage of a cat therethrough. A rectangular tray is positioned over the opened upper edge of the box. The tray has short front and rear walls with long side walls therebetween. A divider box is positioned parallel with, and centrally located between, the front and rear edges of the tray with a handle formed therethrough. The divider bar separates the tray into an eating area and a sleeping area. Removable coupling elements are located between the box and the lid. The coupling elements include apertures formed in the side walls of the box adjacent to the upper edges thereof. Clips are secured to the side walls of the tray adjacent to the lower edges thereof.

Abstract: There is disclosed herein a scatter-resistant litter and waste collection system which includes a base and a tap support skeleton defining an interior space configured to receive refuse and to collect the excess litter from the animal's paws. The scatter-resistant litter and waste collection system may be advantageously configured to provide a litter box for felines and the like.

Abstract: An adapter device for providing forced air ventilation to a litter box having an upper vent location, this adapter device comprising a housing member of generally rectangular configuration having a lower portion, an interior portion, and an upper portion. An external duct fitting is mounted upon the upper portion, and a downwardly dependent skirt member extends continuously around the lower portion. An internal duct extends upwardly through the lower portion of the housing member, through the interior portion, being connected to the external duct fitting located on the upper portion. An electric fan is located in the interior portion and operatively mounted in the internal duct, with electric current being supplied to the fan, so that it can selectively be caused to rotate and cause air from the litter box to be pumped upwardly through the internal duct to the external duct fitting located on the upper portion.

Abstract: An apparatus and method are provided for partially automating the placement of litter bags in animal litter pans. The apparatus uses two pivoted arras over the tops of which the upper portion of a litter bag may be folded when the arms are extended upwardly. The arms are then pivoted downwardly to spread out the litter bag either in a litter pan or upon the base upon which the arms are pivoted. Thus the apparatus also provides a means for complete elimination of an animal litter pan. Litter may be placed within the litter bag either before it is folded over the pivot arms or after. It is preferred to use prepackaged litter containers and several prepackaged litter containers are disclosed which can be used with the particular apparatus or other apparatus including ordinary litter pans.

Abstract: A portable cat litter box and travel case is disclosed wherein the portable box is comprised of two separate side compartments. One of the side compartments defines the litter box, and the second side defines a compartment within which various items necessary for proper pet care may be stored. The litter box has a substantially air tight sealing member removably secured to the top sidewall around its perimeter. Folding flanges are used to prevent a cat from inadvertently removing litter from the box upon exiting the litter box. Items which may be stored in the travel case include things such as extra food, spare liners for the litter box, a feeding bowl, etc.

Abstract: A hinge of single piece construction particularly adapted for providing a removable pivotal attachment for a raised cover on a cat litter box wherein the rearward ends of the litter container and cover are each provided with vertical slots positioned such that upon the cover being disposed on the container in a closed position the slots on the cover are disposed adjacently above and in axial alignment with the slots on the litter container. The hinge defines a curvilinear depending tab portion adapted to extend through one of the aligned pairs of slots against a portion of the litter box and be removably retained in a snug fitment within the slot in the litter container. The tab portion of the hinge member merges into a curvilinear guide portion extending upwardly and rearwardly from the tab portion which merges into a cover support portion.

Abstract: An improved cat litter collection device comprising a base unit having an open top, whereby the base unit sits upon a flat horizontal surface. A litter pan fits into the open top of the base unit. A cat can stand upon the base unit and deposit urine and feces directly into the litter pan without having to step into the litter pan. This prevents the cat from tracking unwanted litter and feces residue to other areas that are remote from the base unit.

Abstract: A cat litter box has a solid bottom, vertical sides and a top with an opening to admit a cat. The height of the vertical sides is such that a cat can reach the top with its forepaws by standing on its hindlegs. The box is low enough that a cat would have easy access to the box, yet is deep enough to prevent the escape of litter or excreta from the box during use by a cat.

Abstract: A cat litter pan enclosure comprising a first litter pan member, and a litter pan receiving member into which the first litter pan member is installed. The first litter pan member has a first pan center and a first pan perimeter. The litter pan receiving member has a bottom member and four side members. The bottom member has a first and second bottom surface. The four side members extend from the first bottom surface and are in connection with one another to form a closed bottomed container that is open above the first bottom surface. The first bottom surface is of dimensions sufficient to allow the pan center of the litter pan member to be placed thereon in a manner such that any portion of the pan perimeter adjacent a side member is between two and five inches from the side member. One of the side members has a height of between four and eight inches above the first bottom surface. The other three side members have a height of between eight and thirty-six inches above the first bottom surface.

Abstract: A method and apparatus for disposing of animal waste. The method includes using a receptacle which receives animal litter. A sieve is placed within the receptacle to rest therein beneath the animal litter. The sieve includes openings sized to allow particulates to pass therethrough but to impede the passage of solid waste therethrough. To remove the solid waste, the sieve is lifted from the receptacle and turned or otherwise positioned to allow the waste to fall there off of. The apparatus includes a waste-guiding device which fits over the receptacle to define an opening to help in guiding the animal to deposit waste in the receptacle. The waste-guiding device, in one embodiment, is formed in two semi-circular portions with each being hingedly secured to the receptacle.

Abstract: Furniture Like Litter Box Housing is an operational container that may resemble various types of house hold furniture. Its main purpose is to hide or conceal a cat litter box or animal food ware(s) while in use by the cat or small animal. The present invention provides, containment, seclusion, easy access for animal and consumer. It can come in various designs and colors that replicate house hold furniture. The Furniture Like Litter Box Housing has a rear entrance that is concealed from view, which comprises of a top piece (A)that supports the top opening lid (C), top back board support (B), and the side walls and center wall (D). The lower back board guard (F) is supported by side clip holders (G), that are attached to both side walls at the lower inside. The bottom (M) attaches to the bottom edge of the side walls and center wall (D), and front panel (L).

Abstract: A cat litter box assembly comprises a rectangular litter box tray, an upstanding cover removably securable on the walls of the tray so as to extend over and about a portion of the tray rearwardly of the front wall thereof, and a removable hood pivotally mountable on the cover between an extended position and a retracted position. The hood defines an elongated forward edge portion which, when the hood is in the extended position is disposed forwardly of and above the front wall of the tray and cooperates therewith to define an elongated cat entry area therebetween extending substantially the length of the front wall of the litter tray. The front and rear litter tray walls are longer than the side walls, maximizing the width of the cat entry area for the size of the tray. In the retracted position the hood is disposed interiorally of the cover and in substantial juxtaposition therewith so as to provide unobstructed access to the interior of the litter box tray for viewing and litter cleaning.

Abstract: An improved litter device having an enclosed housing with an opening sized to permit the passage of a pet through the housing opening. The housing is divided into two separate internal chambers with an opening between the chambers also sized to permit passage of a pet. Configured and sized to cover both openings are flexible closure which allow for selective passage of a pet through each individual opening when deflected. When the closure are undeflected, they remain closed to provide an isolated or "dead" air space between the openings by creating an air lock chamber. A slidably removable tray is sized to be received into a tray opening that extends into the second chamber, and is used for holding litter. A deodorizing agent is preferably secured to the interior of the housing for absorbing odors created by the pet excretions.

Abstract: A ventilated litter box in which a lower pan removably receives an enclosing cover having a pet access opening, a ventilation opening, and a fan housing surrounding the ventilation opening which includes an electric fan positioned to withdraw air through the ventilation opening from an interior space while an exhaust outlet in the fan housing provides for escape of the air withdrawn from the space. An electronic circuit controls the operation of the fan. An apparatus for sensing the presence of a pet entering the interior space is provided with a capacitive pick-up in the form of a pair capacitive plates preferably located at or near either side of the access opening. The electronic circuit is responsive to the change of capacitance between the plates indicating the presence of the animal. A first time-out circuit delays the operation of the ventilating fan motor following the entrance of a pet into the interior of the box to avoid frightening the pet.

Abstract: A litter box for domestic cats or other domestic mammals has interior surfaces which are abrasive and that dull the claws of a cat when it uses the litter box. Abrasive material may be incorporated into the surfaces of the box, can be sprayed or rolled on the surfaces or can take the form of a thin flexible sheet of abrasive sheet material which is adhered to the surfaces of the box. Sheets are constructed to fit the side surfaces, end surfaces and bottom surface. The sheets can be adhered with a permanent or with an easily removable adhesive. The easily removable sheets can be replaced when worn. The sheets may include waterproofing material and or scented material and may be imprinted with a design pattern.

Abstract: A litter box system and method for containing and separating animal waste from litter includes a first box and a second box forming a container which houses the litter, a floor card, and a cover sheet for absorbing odors. The litter box system also includes an additional floor card for use during the cleaning process, which includes installation of the additional floor card, a clean cover sheet, and a filter bag. The litter box system is inverted, depositing the litter into the filter bag for filtering litter through apertures in the filter bag, while retaining animal waste within the filter bag for disposal. Each of the boxes is substantially identical having an opening for passage of animal waste into the litter box system. A flange surrounds the opening for helping to retain the litter within the litter box system during use by an animal. The cover sheet may be coated with a protective material, such as wax, for substantially preventing the passage of liquid animal waste therethrough.

Abstract: A disposable telescopic cat litter box comprising a rectangular bottom portion having a bottom surface and an open top, a front wall, a rear wall, a right wall, and a left wall, an opening in the front wall of the bottom portion, a first set of adhesive tabs positioned along the right wall, a second set of adhesive tabs positioned along the left wall; and a top portion having an open bottom and a top surface, a front wall, a rear wall, a right wall, and a left wall, a perforated portion formed in the front wall, a first set of plastic strips positioned along the right wall adapted for engagement with the adhesive tabs of the right wall of the bottom portion, a second set of plastic strips positioned along the left wall adapted for engagement with the adhesive tabs of the left wall of the bottom portion, the top portion telescopically mated with the bottom portion with the perforated portion of the front wall of the top portion aligning with the opening of the front wall of the bottom portion.

Abstract: A litter box for containing animal litter for household cats, the litter box including a substantially rectangular, deep container and a cover frame for the top of the container, the cover frame having a flat outer rim, an inner lip and an inwardly and downwardly sloping bevel interconnecting the outer rim and inner lip, the inner lip defining a rectangular opening for entry and egress of the cat, the lip having a rounded protective bead, the cover frame being designed to prevent scatter of litter with the concave frame aiding in returning tracked litter to the container.

Abstract: A pet enclosure has a generally hollow box shaped base and a roof which is hingedly attached to the base. The hinged roof allows simplified access to the interior of the pet enclosure for cleaning, whelping or the like. The roof of the pet enclosure includes a chimney within which is located a passive vent which can be opened or closed to allow air flow through the pet enclosure to be controlled. A further embodiment of the pet enclosure includes an optional plastic curtain door and/or a solar powered vent fan which replaces the passive vent.

Abstract: A litter box apparatus for small animals includes an open box and a cover received over the box. The cover includes a hooded opening for permitting animal access to the box, and is supported on the box for pivotal movement about a horizontal axis between a use position in which the cover closes off the box except for the opening so that animals may enter and use the box, and a service position in which the cover exposes the box for servicing. The pivot axis is centrally located over the floor so that the cover rolls about the box between the use and service positions without requiring a substantial amount of additional floor space than that occupied by the box.

Abstract: A sifting litter-box utilizing two identical litter trays(8a,8b), each with sieve openings(26a,26b) integrated into one sidewall(18a,18b). The trays are nested so that their respective integrated sieve openings(26a,26b) are on diametrically opposed sides of the nested pair of trays, thereby the backwall(22b) of the lower tray(8b) closes off the sieve openings(26a) of the upper tray(8a) when nested one atop the other. The litter(34) occupying only the top tray(8a) is, after use, sifted into the bottom tray(8b) by lifting the top tray(8a) and tilting its contents toward its sieve-wall(18a) allowing the reusable litter to pass through its sieve openings(26a) and form a static pile of sifted reusable litter(34) at the backwall(22b) of the bottom tray(8b). Feces and urine clumps(38) are retained in the top tray(8a) which in then emptied.

Abstract: A pet waste material collector and odor eliminator system having in combination a rectangular container, a removable tray insertable in said container which holds litter material and has vents disposed around the upper vertical portions thereof, a filter pack, a fragrance dispenser, and a fan. The tray forms an air chamber between the bottom of the container and the bottom and sides of the removable tray. The fan pulls air and odors across the litter bed material, through the vents of the removable tray into the air chamber, through the air chamber and through a filter pack which absorbs and/or adsorbs the odors. The air is then pulled across an optional fragrance dispenser which masks any residual odors. The litter box also has a motion sensor device which automatically shuts off the fan as the pet approaches the litter box usually about 10 feet from the litter box.

Abstract: A system for retaining and filtering animal litter. The inventive device includes a plurality of nested receptacles for containing the litter. A screen insert is removably positioned within a corner of the receptacle to permit filtering of the litter during pouring thereof into another receptacle. A cover assembly is coupled to an uppermost one of the receptacles to preclude projection of litter therefrom by a pet.

Abstract: An animal litter container (20) which is constructed so that it may be attached to a conventional animal carrier (22). The litter box has an opening (30) in its front wall (28) which meets an opening (34) cut or manufactured into the rear wall (32) of an animal carrier. Access is therefore provided for movement between the litter box and the carrier. A method is provided for attaching the litter box securely to the carrier. A latch is provided to secure the opening in the rear carrier wall when the litter box is detached from the carrier, so that the escape-proof integrity of the animal carrier is completely restorable for times when it is to be used alone (see FIG. 3A). A seal (122) is provided to contain the litter box's contents and odors when the litter box is not in active use.

Abstract: An improved latch for securing together two portions of enclosure in which a rotary latch member is secured for rotation to an upstanding wall of one of the portions of the enclosure. The latch member includes a generally circular disk having an annular wall formed about the periphery thereof, the annular wall having an interruption therein and the latch member being rotatable between locked and unlocked positions. A lug is formed on an upstanding wall of the second portion of the enclosure upon assembly of the two portions of the enclosure, the lug is received interior of the annular wall through the interruption therein and the latch member is rotated to the locked position to confine the lug within the annular wall. A stop member extends from one of the upstanding walls generally adjacent the periphery of the disk and includes a locking aperture. A locking lug extends generally outward from the annular wall of the latch member and generally tangentially to the periphery of the disk.

Abstract: A sanitary device for cats includes a rectangular, tub-like lower part that has opposite sides and is open at the top and has an opening across an entire right width on a right, narrow side thereof. The device further includes a second rectangular part that is placed on top of the lower part and is open to the top and bottom side. A drawer that is suitable for holding an exchangeable, disposable cassette is located in the lower part. An exchangeable, flexible floor has a lower side and permeating fingers on the lower side for distributing used kitty litter into the disposable cassette. The floor also has cogged wheels on the lower side. A separate supply tower, designed to hold fresh kitty litter, is secured to a side of the lower part and has a dosaging device in a lower part of a side facing the lower part. Furthermore, a groove is situated along an entire length of the lower part on each of the opposite sides for receiving and guiding the flexible floor.

Abstract: An apparatus for disposing of animal waste includes a receptacle which receives animal litter. A sieve is placed within the receptacle to rest therein beneath the animal litter. The sieve includes openings sized to allow particulates to pass therethrough but to impede the passage of solid waste therethrough. To remove the solid waste, the sieve is provided with handles so that it can be lifted from the receptacle and turned or otherwise positioned to allow the waste to fall there off of. The apparatus includes a waste-guiding device which fits over the receptacle to define an opening to help in guiding the animal to deposit waste in the receptacle. The waste-guiding device, in one embodiment, is formed in two semi-circular portions with each being hingedly secured to the receptacle.

Abstract: A pet sanitation station comprises a housing having a main chamber a sliding plate forming a chamber floor located in a collar which sits on a receptacle for collecting soiled litter. A hopper for storing and dispensing clean litter is located in the housing directly above the main chamber. An apertured sliding plate dispenses a controlled amount of clean litter from the hopper onto the floor the main chamber.

Abstract: A box-shaped toilet for allowing pet animals to excrete their body waste within the toilet, which has a base having an open top and accommodating a matting such as sand. The toilet further has a cover detachably attached to the base to define a space that the animals can enter and leave through at least one openings formed in the cover. This toilet is of such a structure that the waste and the matting are prevented from being scattered outwardly of the toilet.

Abstract: An apparatus and method are provided for partially automating the use of litter bags for animal litter. The method makes use of apparatus including two pivoted arms over the tops of which the upper portion of a litter bag may be folded when the arms are extended upwardly. The arms are then pivoted downwardly to spread out the litter bag either in a litter pan or upon the base upon which the arms are pivoted. The litter containers used are in the form of bags which-may be prefilled and have an interior sheet over the litter to prevent dusting and pockets in the upper edge to facilitate attachment to the pivoted arms of the support apparatus.

Abstract: An apron adapted to be fitted to an existing sanitary facility for animals having a pan containing litter and a cover. The apron includes a shallow tray which is divided into first and second compartments wherein the first compartment has a top wall formed with an opening for receivably mounting the pan therein. A plurality of serrations are formed in the top wall to provide a number of breakaway portions to form various size pan receiving openings. The second compartment extends in front of an access opening formed in the pan cover and a screen is mounted over an open top of the compartment. As the animal exits the pan through the cover opening it passes over the screen, whereby debris trapped in the animals paws will be dislodged and will and pass through the screen and into the second compartment. A vanity panel extends in front of the access opening, on the opposite side of the screen from the cover opening to prevent the animal from jumping over the screen without first walking over the screen.

Abstract: A pet litter box made of relatively light weight, easily cleaned material which includes a bottom pan for collecting liquid waste, an upper box which closely interfits with the bottom pan to contain odors in the bottom pan, and a litter tray which is supported by the upper box. The litter tray includes an apertured flat sheet which supports a layer of litter. The litter acts as a liquid waste absorber and odor barrier, while allowing unabsorbed liquid waste to pass downwardly into the bottom pan. The apertured flat sheet is integral with a cellular structure to provide structural rigidity for supporting the weight of a pet without significant downward bowing of the sheet.

Abstract: A carryable enclosure having front, back and opposing side walls, at least one of which is provided with an entry opening to admit a kitten or cat to access a litter box supported within by a floor panel. Removable, and preferably, reversible dividers are provided to guide the kitten or cat to, and from, the litter box from the entry opening, over a course designed to trap and gather any litter accumulating on its fur and/or paws following from its use of the litter box. At least one of the walls, and/or an included top cover for the enclosure, is of a see-through construction to allow a breeder to observe the well being of the kittens and cats within the enclosure and the general sanitary conditions there.

Abstract: The invention relates to a diagnostic system for testing animal urine and includes a device for the collection of the urine. The system uses granular particles which are nonabsorbent particles having sufficiently large diameter to provide sufficient interparticle spacing to permit free flow of urine from the particles to the collection region below. The base of the litter box can serve as the urine collector, but preferably, a moisture impermeable liner provides this function. In the use of the instant device for diagnostic purposes, the urine is allowed to pass through the grit, due to its non absorbency, into collection areas. Early evidence of many diseases can be detected, as well as the monitoring of ongoing treatment, through urine analysis. The grit can be used in combination with waffle type support inserts, plastic liners or a spacer member.

Abstract: A urine collection device to assist in the maintenance and monitoring of the health of pets through urine analysis is taught consisting primarily of a large rectangular collection tray with a hole in its center and grooves sloping to the hole; a round sample collection cup which is placed under the hole in the collection tray; and a liquid tight lid for the cup. These three items are coordinated to be utilized in connection with a cat waste elimination system having a substantially rectangular top tray compartment and a substantially rectangular bottom tray assembly.

Abstract: A foldable, disposable, kitty liter container having an outside enclosure, a bottom disposable litter tray and a roof top. The outside enclosure fitting snugly over the bottom litter tray, and the bottom litter tray being disposable after several uses. The outside enclosure being made of a water resistant, and odor absorbing material, is re-useable for several bottom litter trays. The enclosure has four indentations, one in each of the four top corners. These indentations are pushed inward to form a support for the separate roof top pieces of the container. Also, four pointed corner structures, at the top of the enclosure provide scratching, and playing objects for the cat. The bottom litter tray contains a unique system of tabs, slots, and creases to fold and lock the tray in a folded position. The tabs are pre-formed, and the slots are pre-cut into the material. The tabs are used to be inserted into the slots to lock the bottom tray in the folded position.

Abstract: A litter container assembly particularly suited for accommodating a pot belly pig includes a litter container defining an enclosed area for containing a quantity of animal litter and having a sidewall with an opening formed therein, and an inclined ramp structure attached to the sidewall adjacent to the opening therein and extending therefrom so as to define an entry and exit which leads into and from the enclosed area of the litter container. The ramp structure includes a first ramp inside the container and a second ramp outside the container.

Abstract: An anti-litter spreading and containment device for pet animals is disclosed. It consists in a fence-like structure which substantially surrounds and sits atop almost the entire perimeter of the animal's waste collection container.The invention also includes a device which is of utility in overcoming the difficulty experienced by small kittens in using cat waste boxes, said device consisting in a ramp-like walkway which leads to the top border of the waste collection container.

Abstract: A litter box has a fluid impervious bottom wall and fluid impervious side walls defining an exhaust opening. An insert is disposed at a peripheral portion of the bottom wall and includes a substantially vertical screen separated from the side walls by an exhaust channel communicating with the exhaust opening. A blower produces air flow from the receptacle into the exhaust channel for discharge through the exhaust opening. Also included are electrical blower controls including a timer switch, a manually operated on-off switch and a pressure switch all connected in parallel.

Abstract: A vented litter box for a cat is provided which consists of an electric fan with an elongate flexible hose connected over an exhaust filter on a removable cover on an open top container with litter. The fan will exhaust odorous air therein to a remote location away from the litter in the container.

Abstract: A disposable litter box product for pets is provided. The product includes a box having spaced apart, generally flat top and bottom wall sections and a side wall section that interconnects the top and bottom wall sections. A quantity of pet litter is disposed in the box. At least one of the top and side wall sections includes a predetermined edge region that defines an opening into the box. A lid portion is separably joined to the edge region such that the opening is provisionally blocked and the box is closed. At least a part of the lid portion is selectively separable from the edge region to expose the opening and provide access into the box.

Abstract: Minimizing or eliminating the amount of odor-laden air that leaves a cat litter box and circulates into the room is accomplished by the mixing of the cooler room air with the hotter air that rises from the animal's fecal matter to the top of the box and then out through a series of charcoal filters.This is achieved by having a dome cover (aesthetically or ornamentally designed to look like a bank) of approximately fourteen inches high, and twenty inches long by fifteen inches wide placed across the top of the litter box and/or removably fastened to same. The odor elimination or minimization starts with the cat's excretion of warm fecal matter in to the litter box or waste elimination system. As the warm, odor-laden air rises, it mixes in with the fresh cooler air entering into the dome cover from several (such as ten) designed slots on the outside of the dome cover.This diluted air automatically reduces odor by expanding the air flow to the top of the enclosure.

Abstract: The present invention is a dwelling addition enclosure for protective outdoor containment of pets and other related contents, including a litter tray. The present invention comprises a system of an enclosure member, a seal, and a pair of cover plates, which are employed alternately of the enclosure member. More specifically, the enclosure member comprises a support boot having floor ventilation and an access opening, a security sleeve, a service access door, and an enclosure body and roof. When assembled as an enclosure member, the seal is positioned around a mounting sleeve part of the support boot. The support boot is installed within a dwelling wall service opening, fitting matingly with the security sleeve which is secured from the interior; the combination of the two creating a service access area between the dwelling interior and the exteriorly disposed support boot. The enclosure body and roof are then releasably secured to the support boot and to one another; thereby, completing the enclosure member.

Abstract: An automatic or semiautomatic cat litter box and cleaning mechanism which is compact and simple in design is provided. The device has an enclosed housing with a pivotable top lid which can be opened to allow periodic cleaning when needed. A sifting screen is rotated by a crankshaft mechanism so as to traverse a 360.degree. radial arc through the interior portion of the housing, passing through the soiled litter and removing the waste. When the sifting screen has completed its cycle, it stops on top of a storage container upside down so as to drop any sifted cat waste into the storage container which can be removed from the housing and the waste can be periodically disposed of.

Abstract: A disposable litter box is defined by a foldable closed container and includes a supply of litter. The box is adapted to be unfolded into a unitary litter box having a continuous outer perimeter of even height for defining an open topped litter box for use by pets and the like. After use is completed, the box may be refolded to confine the soiled litter, which may then be readily disposed. Visual indicators are provided to facilitate closing the box.