Abstract: A tile setting structure comprises a floor panel and a plurality of wall panels each attached to either the floor panel or one of the other wall panels with a waterproof caulk. Each of the wall panels includes a first rigid layer, a second rigid layer attached to the first rigid layer by a thinset mortar, and a waterproofing layer formed of a flexible material and attached to the second rigid layer by the thinset mortar.

Abstract: A bathroom wall unit includes a molded wall panel formed of a polymer and defining a recessed pocket. A flexible substrate supporting mosaic tiles is illustratively coupled to a rear wall of the recessed pocket. Surface treatment is illustratively provided within linear indentations in the wall panel to simulate grout lines. A connecting bracket illustratively includes first and second pairs of arms supporting seals and defining first and second recesses for receiving mounting flanges of a pair of the wall panels.

Abstract: A bathing vessel is made of a sheet of layered materials, which include a first layer of polyurethane material, a second layer of polyurethane material attached to the first layer, a third layer of acrylonitrile butadiene styrene (ABS) material attached to the second layer, and a fourth layer of acrylic material attached to the third layer. A first narrowed portion about which the sheet bends is provided. The bend defines a first wall and a second wall in the sheet.

Abstract: The present invention relates generally to a waterproofing assembly (10) for a wet area such as a shower recess (12). The waterproofing assembly (10) comprises an elongate spacer element (24) and a waterproofing membrane or coating (26). The spacer element (24) is adapted to secure to a wall structure (14) which is associated with a wall panel (28). The wall panel (28) rests upon the spacer element (24) to raise the panel (28) above the level of a floor (16) and substantially clear of the wet area (12). The wall panel (28) is otherwise conventionally fixed to the wall structure (14).

Abstract: A wall system includes at least one starter piece having at least one mount interface configured to be attached to a wall structure. A plurality of panels includes at least a first panel and a second panel, and wherein the first panel is fit to the starter piece to cover a portion of the wall structure. An intermediate cleat is associated with the first panel, and a second panel is interlocked to the first panel by the intermediate cleat to cover another portion of the wall structure.

Abstract: A moulding for sealing a horizontal structure with a finishing layer of a vertical structure at a corner joint. In cross-section, the moulding has a rectangular base portion for insertion into a gap between the horizontal structure and the vertical finishing layer, and a cap portion with an upper lip for sealing against the finishing layer and a lower lip jutting downwardly for sealing against the horizontal structure. Double sided foam tape is applied only to an underside of the rectangular portion of the body. A bead of caulking at an inner face of the upper lip below an upper tip forms a flexible secondary seal of the moulding to the finishing layer of the vertical structure. While providing a secondary seal for maximum water-tightness, the caulking is protected from water exposure by the primary seal provided by the upper lip of the moulding to prevent mold build up.

Abstract: A waterproofing flashing and resulting juncture, comprising in a first embodiment a generally horizontally positioned planar member which is positioned in sandwiched engagement between the upper peripheral edge of a shower pan or shower bench sidewall (or equivalent wallboard) and a lower peripheral edge of adjacent wallboard (or equivalent shower bench, shelf or ledge), and a vertically extending member attached to a distal edge of the horizontal member extending vertically upwardly behind the wallboard (or equivalent shower bench, shelf or ledge). An alternative form of the invention comprises a T-shaped flashing member comprised of a mid-section to which are connected first and second attachment members or wings, the wings adapted to connect the flashing to the room-facing side of the wallboard and/or shower module sections.

Abstract: A tub assembly is provided with a tub and a surround wall. The surround wall is spaced from a nail flange on the tub by a desired distance with a simple wall fastener. The wall fastener clips onto the nail flange, and has a forward face spaced from the nail flange by a desired distance. The forward face provides a stop and securement surface for the surround wall. The wall fastener includes a clip portion that clips onto the nail flange, and has a plurality of discrete clip portions. The clip portions can be broken away from the wall fastener at locations which will be aligned with a wall stud. In this manner, the wall fastener can be quickly clipped onto the nail flange of the tub once the tub is installed. The surround wall can then be simply adhered to a forward face of the wall fastener, such that the entire tub assembly can be easily and properly assembled.

Abstract: A foldable safety handrail assembly includes a mounting bracket, a fixing sleeve mounted on the mounting bracket, a release sleeve mounted on the mounting bracket and having a release groove, a rail having a pivot tube which has a first locking groove and a second locking groove, a locking tube extending through the fixing sleeve, the pivot tube and the release sleeve and having a limit slot, a locking member mounted in the limit slot and detachably locked in the first locking groove or the second locking groove, a control member mounted in the locking tube to move the locking member, and a push knob mounted on and pushing the control member. Thus, the user only needs to push the push knob to unlock and fold the rail so that the rail can be unlocked and folded easily and quickly.

Abstract: The invention is a modular wall system and floor system for bathrooms, gang showers or any other room space having at least one generally 90 degree room corner with a first wall panel on one of the two intersecting room walls of said room corner intersecting and joining to a second wall panel on the other intersecting room wall. Each embodiment of the invention features a plurality of spring clips that together with a plurality of globs of adhesive form a room corner attaching means for wall panels or other wall members that intersect one another in a generally 90 degree room corner that provides a tight, closely abutting fit between the adjacent, perpendicularly intersecting panels or members in the room corner.

Abstract: Methods for installing underlayment systems include the steps of laying at least one piece of a pre-formed board over at least one first portion surface area of a sub-floor. The pre-formed board is preferably fire-resistant gypsum board, which may also be water- and/or moisture-resistant. A second portion surface area of the sub-floor, which is adjacent to each first portion surface area, is designated to receive a poured underlayment after a tub is installed over the laid at least one piece of pre-formed board. In some instances, a sound mat may be laid over each first portion surface area of the sub-floor, prior to laying the at least one piece of the pre-formed board, and, then, another sound mat may be laid over the second portion surface area of the sub-floor, after laying the at least one piece of pre-formed board and prior to pouring the poured underlayment.

Abstract: The invention is a modular wall system and floor system for bathrooms, gang showers or any other room space having at least one generally 90 degree room corner with a first wall panel on one of the two intersecting room walls of said room corner intersecting and joining to a second wall panel on the other intersecting room wall. Each embodiment of the invention features a plurality of spring clips that together with a plurality of globs of adhesive form a room corner attaching means for wall panels or other wall members that intersect one another in a generally 90 degree room corner that provides a tight, closely abutting fit between the adjacent, perpendicularly intersecting panels or members in the room corner.

Abstract: Methods and apparatus for creating a shower or bath enclosure, in which, given a predetermined area in which to create the shower or bath, a given prefabricated water proof bath or shower floor module is too small to occupy the entire available enclosure space. The apparatus includes the use of one or more additional enclosure components, such as one or more shower benches, to occupy a space between an edge or edges of the floor module and the exterior boundary(ies) of the enclosure space.

Abstract: A shower vanity for use with a wall having spaced apart framing members. The vanity includes a housing dimensioned to be recessed between two adjacent framing members in the wall and the housing is attached to the framing members by fasteners. The housing includes an open front forming a cavity dimensioned to contain bathing products. Two mirrored doors are slidably mounted to the housing which cover the housing front when closed and provide access to the bathing products when opened.

Abstract: A bathtub ledger strap for use with the installation of a bathtub, such ledger strap being of generally planar construction for attachment to a ledger stud in a position corresponding to a wall stud, such ledger strap having a top portion, a mid portion and a lower portion disposed along its length with such portions having apertures/slots for adjusting the height and level of the ledger stud on a corresponding wall stud using screws and levering means and for permanently attaching the rim of the bathtub to the ledger strap and corresponding wall stud after the ledger stud is at the desired height and level state.

Abstract: A moisture barrier is formed between a water bearing floor surface and external material, such as flooring or water bearing wall surfaces, wherein the water bearing floor surface includes an embedded water barrier membrane incorporated into one or more of the edges of the water bearing floor surface. The water bearing floor surface may include a shower floor pan, sink, or similar water collecting surface. The external material may include water bearing wall surfaces, such as FRP, or flooring material, such as ceramic tile or epoxy flooring materials. The combination of the water barrier membrane and external materials creates a water proof seal without caulk or other sealant which does not deteriorate with time and usage. Also, the invention may include a non-porous adjacent material including a notch for accepting the water barrier membrane and wherein the water barrier membrane is glued or otherwise affixed to the water bearing floor surface.

Abstract: A tub enclosure includes a back wall and a first side wall attached to the back wall. The first side wall and the back wall establish an interior of the tub enclosure. An interior side of the first side wall extends past an interior side of the back wall to establish an offset between the first side wall and the back wall. A caulk joint extends along the offset between the back wall and the first side wall. The caulk joint is obscured from vision when viewed in a direction toward the interior.

Abstract: The invention provides an adjustable mounting system for mounting countertops and other similar structures to a wall or other similar structure. Adjustable mounting systems of the invention include hinge adjustment features and/or length adjustment features that allow a single system to be adapted to fit a variety of sizes and/or shapes of spaces. The invention further provides methods of mounting a countertop using an adjustable mounting system.

Abstract: A seal for sealing between two surfaces lying generally perpendicular to each other, the seal comprising a first profile which has a base adapted to be fixed sealingly to a first surface and an upstand which projects from the base and which defines respective inner and outer opposed surfaces, and a second profile which overlies the upstand of the first profile and which, when viewed in section, comprises inner and outer depending limbs which engage slidably respective ones of the opposed inner and outer surfaces of the upstand of the first profile, wherein at least one of the inner and outer depending limbs of the second profile bears resiliently against the respective surface(s) of the upstand of the first profile in sliding engagement therewith.

Abstract: An exemplary bathing area surround includes a surround wall and a tub basin having a tub bottom and a plurality of tub sides. A tub ledge extends from the tub basin transverse to the tub sides. A tub flange extends from the tub ledge away from the tub bottom. A tongue extends from one of the tub ledge and the surround wall. The other of the tub ledge and the surround wall defines a groove for receiving the tongue. The tongue biases the surround wall toward the tub flange when the tongue is received within the groove.

Abstract: An adapter for facilitating the installation of finished walls around bathing units, such as bathtubs, shower basins, or one-piece shower units, where the bathing units have a vertical water-retaining flange around at least part of their perimeter. The adapter includes an elongated channel and a sealing strip extending down from the channel. The adapter may be applied to the bottom edge of a section of wall board, so that the wall board enters the channel and the sealing strip points down. The wall board can then be secured to a wall adjacent the bathing unit with the sealing strip extending over the flange and abutting against a surface of the bathing unit, such as a tub deck, where it forms a water-resistant seal. The adapter forms a substantially planar surface to which finished walling materials may be applied without requiring the use of furring strips.

Abstract: Disclosed is a clip suitable to removably assemble a bathtub or shower stall base to a shower enclosure surround wall. The clip includes a toe, a leg connected to the toe, a web connected to the leg, and a flexible tang also connected to the web. The web is designed to mount the clip on the bathtub or stall base, while the toe catches under a ledge of the bathtub or stall base. The tang will then project at an angle inwardly. The tang permits the surround wall to pass vertically downward past it to assemble the enclosure. It resists upward movement until a specified force is applied, at which point the clip deforms or breaks to permit disassembly. The clip also has a portion of the web which facilitates keeping the clip on the bathtub or stall base even after the clip has been deformed or partially broken.

Abstract: An adapter for facilitating the installation of finished walls around bathing units, such as bathtubs, shower basins, or one-piece shower units, where the bathing units have a vertical water-retaining flange around at least part of their perimeter. The adapter includes an elongated channel and a sealing strip extending down from the channel. The adapter may be applied to the bottom edge of a section of wall board, so that the wall board enters the channel and the sealing strip points down. The wall board can then be secured to a wall adjacent the bathing unit with the sealing strip extending over the flange and abutting against a surface of the bathing unit, such as a tub deck, where it forms a water-resistant seal. The adapter forms a substantially planar surface to which finished walling materials may be applied without requiring the use of furring strips.

Abstract: A pod comprises a box-section steel frame (1) having horizontal structural members (4, 11). A floor is provided by welding a 6 mm steel plate (10) to the horizontal structural members (4, 11). The plate (10) has a checkered pattern of 2 mm ridges on its lower surface. A combination of inherent stiffness of the plate material, the ridges (50) and welding to both edge (4) and internal (11) structural members achieves sufficient stiffness of the floor to allow it to be tiled off-site during manufacture because the floor is thin, there is no need for the builder to provide a recess in the concrete on-site.

Abstract: A wall mountable frame structure for supporting appliances, entertainment equipment or other devices including peripheral horizontal and vertical structural beams with at least one intermediate vertical beam extending between and secured to the horizontal beams. A plurality of cladding panels removably attached to the vertical beams by way of a stud having a trapping member at its terminus which fits within a complimentary receiving portion of the vertical beams to secure the cladding panel to the vertical beams. A support bracket to be affixed to a wall and having mounting forks pivotally secured thereto is provided. A plurality of transverse mounting members are affixed to the vertical beams and are received by the mounting forks to secure the frame to a wall. The mounting forks are rotatable between first and second positions with the frame positioned away from the wall in the first position and against the wall in the second position.

Abstract: A shower or bath wall liner panel 1 includes panel sections on either side of a fold 4 down the panel, and opposing non-planar formations 7 and 8 integrally formed in the panel on either side of the fold 4 from which after installation of the liner panel one or more of a shelf, soap dish, flannel rail, or a step 10 may be supported within a shower enclosure or above a bath or which form integrally one or more of a shelf or basket, soap dish, flannel rail, or step.

Abstract: A shower receptor installation assembly includes a dense foam underlayment, a base with a sloping floor that fits onto the underlayment, a mesh member attached to the threshold of the base with adhesive, a plurality of strike rails, and a plurality of screed blocks, two or more of the screed blocks being attached with removable adhesive to the bottom edge of each strike rail.

Abstract: A multifunction wall structure which comprises hydraulic connections and hydro-sanitary accessories is characterized in that it comprises a subhorizontal functional cross-member which is fixed to a fixing wall and two panels supported by the said functional cross-member. The multifunction wall structure may be used both for delimiting a shower box and for providing a functional support for the conventional components of bathrooms.

Abstract: A modular patient room includes a plurality of modular wall panels or units having various configurations. In some embodiments, the modular wall units have water dispensers. Headwall units having water dispensers are also disclosed. The water dispensers are configured to filter water or to sterilize water.

Abstract: A wall table device includes a platform for supporting items atop a wall coupled to two stabilizing members extending downward on either side of the wall. The stabilizing members may be positioned to accommodate walls of varying thicknesses.

Abstract: A prefabricated bathroom assembly and methods for its manufacture and installation are disclosed. For example, a prefabricated tub and/or shower assembly may be provided. In some embodiments, the prefabricated assembly may include at least a bathtub or a shower pan, tile surround(s), and a ceiling. The prefabricated assembly may be constructed substantially entirely off-site relative to a construction site and shipped to the construction site, for example, in substantially a single piece. Finishing face trim for making a seamless transition from the prefabricated assembly to the adjoining walls and ceiling may also be provided. In other embodiments, at least partially prefabricated panels (e.g., 3 wall panels and 1 ceiling panel), a tub or shower pan, the face trim, and/or other components may be shipped separately to the construction site for on-site assembly.

Abstract: A tub assembly is provided with a tub and a surround wall. The surround wall is spaced from a nail flange on the tub by a desired distance with a simple wall fastener. The wall fastener clips onto the nail flange, and has a forward face spaced from the nail flange by a desired distance. The forward face provides a stop and securement surface for the surround wall. The wall fastener includes a clip portion that clips onto the nail flange, and has a plurality of discrete clip portions. The clip portions can be broken away from the wall fastener at locations which will be aligned with a wall stud. In this manner, the wall fastener can be quickly clipped onto the nail flange of the tub once the tub is installed. The surround wall can then be simply adhered to a forward face of the wall fastener, such that the entire tub assembly can be easily and properly assembled.

Abstract: A rigid compensator device is provided for a shower screen (10) comprising a plurality of edge support elements (12) having channels (116) and a panel element (14) 5 having edges (26, 28) receivable in the channels (116) of the edge support elements (12). The compensator device (34) is folly positionable or positioned within the channel (116) of one or each said edge support element (12) of the shower screen (10) and comprises a narrow support portion (20) for receiving and directly or indirectly supporting a portion of the panel element (14) at or adjacent to the edge (26, 28) of the 0 panel element (14), a body portion (40) which is wider than the support portion (20) and which includes a panel stop element (22) at or adjacent to a rear edge or edges (50) of the compensator device (34) and spaced from the narrow support portion (20).

Abstract: A lightweight plastic foam construction element (1) for us in making show stalls, bathroom partitions and the like consists of a plastic foam core (4) with at least one external mortar layer (8) reinforced with fibers. The construction element has wall areas that are reinforced with at least one adhered wall component of more rigid material for the attachment of installation components that extend over the outer surface on the working side of the construction element. The wall components (11) are inserted into a groove (10) cut into the working side, and the groove is sealed on the working side using a foam filler element (12).

Abstract: A flashing providing directional vanes, ribbing, scoring or etchings on its working surface which is suitable for joining, or providing backing for, sections of roofing materials, sections of exterior wall material, particularly at corners, and sections of the walls of a bathtub or shower stall and causes accumulated moisture flow to be directed inwardly toward a moisture drainage point for the flashing rather than outwardly toward the surrounding building structure.

Abstract: A mounting clip is provided for enabling a snap fit attachment of an ACM fascia to an existing building fascia. The mounting clip includes at least one flexible arm integrally attached to a base portion so as to allow the flexible arm to move away from one of the fascia. At least one locking finger is integrally attached to the flexible arm by a hinge structure biasing the locking finger into snap fit attachment into a groove on one of the fascia.

Abstract: A mechanical breathing aid for providing a regulated supply of a breathing gas has an expiratory pressure regulator for regulating gas pressure within an expiration gas flow path dependent on an input regulatory signal and an expiratory pressure sensor disposed to sense an actual gas pressure within the expiration gas flow path and to provide an output signal indicative thereof. A control unit is operably coupled to the expiratory pressure regulator and to the expiratory pressure sensor for calculating a target pressure as a function of time dependent on a value of compliance calculated from measurements of pressure and flow of provided breathing gas made during an inspiration phase, and for generating the regulatory signal dependent on a magnitude of the difference between the target pressure and the actual pressure.

Abstract: A bathroom compartment in a bathroom includes at least one partition having a core with one or more core layers, the core layers being made from wood or cellulose fibers which are surrounded and bound by a hot-curing resin. The core includes pigment to provide a solid-core color. The outer surface of the core may be provided without a surface covering or may be covered with a clear sheet of material or a sheet of material having the same color as the solid core color.

Abstract: The invention concerns a permanently functional gap seal on structures, in particular building structures, which ensures a reliable seal against penetrating moisture, this being achieved in that the cover layer has a profile which can be adapted to an installation situation over a joint or on an inner or outer corner and has a central part and side wings disposed on both sides of the central part, and in that at least the side wings have contact surfaces for contacting a sealant.

Abstract: A self-cleaning flooring system for catching waste products has at least one module comprising a drain pan and a floor grid. The drain pan has a ramp and a central drain outlet. The ramp extends around the drain pan defining a drain pan periphery. The ramp slopes downward from the drain pan periphery towards the drain outlet. The drain pan periphery has a plurality of discharge ports spaced therealong for discharge of flushing fluid onto the ramp such that the waste products are washed down the ramp towards the drain outlet. The floor grid extends across the drain pan and is mounted upon the drain pan periphery for supporting personnel standing thereon while permitting waste products to pass therethrough. The module is interconnectable to horizontally adjacent modules to form the flooring system.

Abstract: A tub and shower surround assembly is initially molded as a single molded component having a waste strip which separates each individual tub and shower surround portion. The waste strip readily protects the mold and simplifies post molding operations and assures that each portion will meet final tolerances. Another waste strip is located between the tub portion and the wall portions to provide for positive draft between a tub flange which extends about the tub portion and the wall portions. Positive draft is required to assure proper removal of the mold component from the mold. The single component provides for finishing operations to be performed prior to separating the individual components. Since the majority of finishing operations are performed simultaneously prior to separating the portions, the likelihood of damage to the portions are reduced and the finish of the individual portions are of greater consistency.

Abstract: A utility pipe encasement collar for preventing water from weather related sources such as rain and snow from traveling rearwardly along the exterior surface of the utility pipe and into a building structure from which the pipe projects. In a first embodiment the collar includes a weather proof elastomeric sheet material having an opening therethrough sized to inherently huggingly accommodate a utility pipe passed through the opening, and a generally rigid support member extending laterally from the elastomeric sheet material. In a second embodiment the collar includes a first generally rigid weather proof sheet member having an upright generally U-shape opening therethrough and a second generally rigid weather proof sheet member having an inverted generally U-shape opening therethrough.

Abstract: Method for forming an enclosure of the type having a plurality of enclosure panels and at least one door, comprising: providing a first flexible profile element (12) web (14) dividing said element into an upper channel (16) bounded by a pair of spaced-apart, upwardly extending arms (18, 20) of unequal height, and a lower channel (22) bounded by a pair of spaced-apart downwardly extending legs (24, 26) being provided with an inwardly directed flange (28) for receiving and retaining at least one rigidifying metallic strip element (30), said upper arms (18, 20), having inwardly directed interfacing portions (32) for receiving and retaining an enclosure panel (34) inserting a metallic strip (30) into said lower channel (22) formed in said flexible profile element (12) to form a rigid composite base element; and inserting a plurality of enclosure panels in said upper channel to form the walls.

Abstract: A shower apparatus, comprising an enclosure or a door and a shower tray, the enclosure or door and the shower tray being mutually disconnected and the enclosure or door having means for adjustable connection to walls that form a cubicle that accommodates the apparatus.

Abstract: Fixture guard panels and systems provide protection for fixtures such as tubs and showers. The fixture guard panels may have a variety of configurations such as including an enclosure formed of a flexible material that contains a padding layer. The panel may be placed adjacent the fixture such that the panel protects the fixture from impacts and abrasions. The panel may include individual sheets of material to enclose padding, may include padding without an enclosure, or may include an individual sheet without padding. The individual sheets may be materials such as polyethylene and/or non-skid rubber. For panels with non-skid rubber, the panel may be positioned so that the non-skid rubber portion contacts the fixture and will not skid. Panels may include flexible sheets with adhesive that adheres to the fixture, such as upon vertical fixture surfaces. Additionally, multiple panels may be included as a system.

Abstract: A plastic corner device for installing drywall to form an inside corner. The corner device has a large corner with a smaller corner facing it to form a right parallelepiped, whose sides equal in length the thickness of the drywall panels. The corner device and/or the panels have adhesive applied to them, and the edges of the panels abut the smaller corner to form the inside corner. Adhesive is then applied to the rearward surfaces, and the assembly of the corner device and the panels is adhered to a building structure.

Abstract: A bathing enclosure wall panel and framing therefor are disclosed. In one embodiment there is a frosted, translucent, colored acrylic that is backed by a mirroring metal such as aluminum. There can also be a waterproofing paint layer behind the reflective material, as well as a cellulosic backing layer to reduce flexing. The material reflects light but does not present a risque appearance.

Abstract: A waterfall-simulated wall structure for a shower stall/tub for providing a unique outdoorsy type of environment for taking showers. The waterfall-simulated wall structure for a shower stall/tub includes a wall assembly including portable walls being adapted to be spaced from stall/tub walls forming a conventional shower stall/tub, and being arranged to allow water to occupy the space between the portable walls and the stall/tub walls, each of said portable walls having a front side which simulates a side of a waterfall, said wall assembly further including rock-simulated members being attached at bases of the portable walls for allowing a user to rest one's feet thereupon when washing.

Abstract: A method of forming a wall unit having a veneer face is disclosed. Initially, a pair of side wall panels and a pair of end panels are mounted substantially upright. Stones or other suitable material are set sequentially in a horizontally disposed course using at least one of the panels. Additional courses of stones or other material may then be stacked upon the initial layer until the desired height is attained. The interior volume of the apparatus is left substantially empty, and is then filled with a binding material. The binding material binds the courses' components together and integrates the individual courses into a single cohesive unit. The wall and end panels are removed and the unit is removed for subsequent installation.

Abstract: A shaped section (10) for a shower partition door (S) is mounted in such a way that it can pivot about an eccentric vertical axis (A) and supports partial leaves (22, 24) in longitudinal grooves (12, 14) on both sides. Said partial leaves can be adjusted in relation to each other in at least two directions. Plane elements (30, 38) can lock into a shaped body (11) on the front and/or rear sides, for example a hollow section which accommodates pivot bearings (26, 28) at the end. The shaped section (10) can be raised and lowered between said pivot bearings even during the pivoting movement, as well as stopped in at least one door position. A mounting or supporting plate (50) can be adjusted and fixed beneath the lower pivot bearing (26) for alignment purposes. The weight of the door rests on a spring arrangement (F) which can be prestressed, above said mounting or supporting plate. A pressure spring (67) can be contracted and released using a manual adjusting device in order to lower or raise the door (S).