PROMENADE DRAIN

FIELD

The embodiments described herein relate to a promenade drain, and more specifically a rotationally adjustable promenade drain having improved flow characteristics.

BACKGROUND

Commercial buildings are typically constructed with flat or near flat roofs. Because these building do not have much of a pitch, the collection of water on the roof surface from rain or melting snow can present serious structural loads that could result in collapse. To avoid this possibility, most commercial and industrial building standards require that roofs of this type include drains positioned at locations that ensure the water accumulated thereon can be removed in a timely manner. Furthermore, in some instances the promenade drains must be incorporated into a pre-existing floor pattern (e.g., tile and the like).

SUMMARY

In one aspect, a promenade drain for installation on a surface, the promenade drain including a base at least partially defining a channel and an outlet, where the base defines a base axis, a connector couplable to the base to form a first joint therebetween, where the connector includes a first sliding surface, a grate defining one or more apertures, and a frame that includes a second sliding surface configured to slide relative to the first sliding surface, where the frame includes a grate seat configured to receive at least a portion of the grate therein, and where the frame can be rotated with respect to the base without influencing the first joint.

In another aspect, a promenade drain including a base defining a channel and an axis, a connector fixedly coupled to the base, where the connector includes a first sliding surface, and a frame rotatable relative to the base. The frame of the promenade drain including a grate seat configured to receive a grate therein, a second sliding surface configured to slide relative to the first sliding surface, and an aperture in fluid communication with the channel, where the aperture is open to the second sliding surface.

In another aspect, a method of installing a promenade drain in a surface where the promenade drain includes a base, a connector, and a frame. The method including installing the base in the surface, coupling the connector to the base to form a first joint therebetween, and coupling the frame to the connector, the frame being coupled to the connector independent of the first joint.

Other aspects of the invention will become apparent by consideration of the detailed description and accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a top perspective view of a promenade drain of the present disclosure.

FIG. 2 is a top perspective exploded view of the promenade drain of FIG. 1.

FIG. 3 is a bottom perspective exploded view of the promenade drain of FIG. 1.

FIG. 4 is a section view taken along line 4-4 of FIG. 1 with the drain installed on a surface.

FIG. 5 is a perspective section view taken from FIG. 4.

FIG. 6 is a central section view of another embodiment of a promenade roof drain.

FIG. 7 is a perspective view of a connector of the promenade roof drain of FIG. 6.

FIG. 8 is a perspective view of a frame of the promenade roof drain of FIG. 6.

FIG. 9 is a top perspective view of a grate of the promenade roof drain of FIG. 6.

FIG. 10 is a bottom perspective view of the grate of FIG. 9.

FIG. 11 is a central section view of the promenade roof drain of FIG. 6 with a basket installed therein.

FIG. 12 is a perspective view of the basket of FIG. 11.

FIG. 13 is a schematic view of a method for installing the promenade roof drain according to any embodiment of the disclosure in a roof.

DETAILED DESCRIPTION

Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.

FIGS. 1-5 illustrate a promenade drain 10 configured to be installed on a roof of a building or other surface 5 (e.g., a floor, concrete slab, inclined ramp, and the like) and coordinate with a floor or other treatment (e.g., tiles and the like) installed thereon. The promenade drain 10 includes a base 18 at least partially defining a channel 38, a frame 20 adjustably rotatable relative to the base 18, a connector 28 positioned between and connected to both the base 18 and the frame 20, and a grate 30 supported by the frame 20. When installed, the channel 38 of the drain 10 is placed in fluid communication with a plumbing system (e.g., a network of conduits to reroute the rainwater off of the roof, not shown) of the corresponding building such that water accumulating on the roof 5 flows through the grate 30 and is subsequently collected by the drain 10 and directed into a plumbing system via the channel 38.

The base 18 of the drain 10 is substantially “funnel” shaped defining the channel 38 through which rainwater may be directed into the plumbing system of the building. More specifically, when rainwater collects on the roof or other surface, the water is directed toward the inlet 40 of the channel 38 where it is subsequently directed into the plumbing or drain system via the outlet 22 thereof. In the illustrated embodiment, the base 18 includes a throat portion 42 at least partially defining the channel 38, and a flange portion 46 extending radially outwardly from the throat portion 42. Together, the throat portion 42 and flange portion 46 define a central axis 50. While the illustrated base 18 is cast as a single piece of material, it is to be understood that in alternative embodiments, the base 18 may be formed as multiple pieces coupled together.

The throat portion 42 of the base 18 is formed from a substantially annular wall 54 having an inner surface 58, a first end 62 generally corresponding with the inlet 40 of the channel 38, and a second end 66 opposite the first end 62 that generally corresponds with and forms the outlet 22 of the channel 38. The inner surface 58 is shaped such that the inner diameter 72 of the inner surface 58 continuously and smoothly decreases as it extends axially away from the first end 62 and toward the second end 66. More specifically, the cross-sectional shape of the inner surface 58, taken along the axis 50, forms a substantially convex shape over its entire axial length (see FIG. 4). The throat portion 42 also defines a frusto-conical-datum surface 76 generally defined as a frusto-conically-shaped surface that is co-axial with the axis 50 and extends from the first end 62 to the second end 66. In such embodiments, the inner surface 58 is shaped such that it is always positioned radially inside the frusto-conical datum surface 76.

The inner surface 58 of the throat portion 42 forms a first surface angle 80a relative to the axis 50 at the first end 62 thereof and a second surface angle 80b relative to the axis 50 at the second end 66 thereof (see FIG. 4). In the illustrated embodiment, the first surface angle 80a is greater than the second surface angle 80b. Furthermore, the inner surface 58 smoothly transitions from the first surface angle 80a to the second surface angle 80b while always decreasing in value. In the illustrated embodiment, the first surface angle 80a is between approximately 40 and 70 degrees while the second surface angle 80b is between approximately 0 and 15 degrees. In other embodiments, the first angle 80a is between approximately 50 and 65 degrees. In still other embodiments, the first angle 80a is approximately one of 51 degrees, 52 degrees, 59 degrees, 60 degrees, and 62 degrees. Other embodiments, the second angle 80b may be between approximately 0 and 5 degrees. In still other embodiments, the second angle 80b may be approximately 3 degrees. In still other embodiments, the first angle 80a and second angle 80b may vary depending on the diameter of the outlet 22.

While the illustrated inner surface 58 provides a smooth, curved, convex shape, it is to be understood that alternative shapes may also be used. For example, the inner surface may include a frusto-conical portion and a cylindrical portion extending axially from the narrow end of the frusto-conical portion (not shown). In such embodiments, the frusto-conical portion includes a first constant surface angle that transitions to a second surface angle at the cylindrical portion. Such an inner surface does not include any concave portions (e.g., instances where the surface angle increases as it extends from the first end 62 to the second end 66).

The flange portion 46 of the base 18 extends radially outwardly from the first end 62 of the throat portion 42 to produce an outer edge 92. The outer edge 92, in turn, defines a top plane 96 (e.g., generally oriented normal to the axis 50 and positioned at the axial highest point of the base 18), and an outer diameter 100. The flange portion 46 includes a first portion 104 extending radially inwardly from the outer edge 92 at a first surface angle 108 relative to the axis 50, a second portion 112 extending radially inwardly from the first portion 104 at a second surface angle 116 relative to the axis 50, and a third portion 120 extending radially inwardly from the second portion 112 at a third surface angle 124. As shown in FIG. 4, the first surface angle 108 is less than the second surface angle 116 (e.g., the first surface angle 108 is steeper than the second surface angle 116), and the second surface angle 116 is less than the third surface angle 124 (e.g., the second surface angle 116 is steeper than the third surface angle 124).

When installed, the top plane 96 of the flange portion 46 is generally positioned so that is aligned with a top surface of the surface 5 positioned immediately adjacent thereto. As such, any membrane or paper 7 can transition from the surface 5 to the base 18 without producing any high spots or bumps.

When the drain 10 is assembled, the second portion 112, the second surface angle 116, the third portion 120, and the third surface angle 124 are generally configured to match the contour of the underside of the connector 28 (described below). While the second and third portions 112, 120 are shown having different surface angles in the illustrated embodiment, it is understood that in other embodiments, they may be the same.

As shown in FIG. 4, the first portion 104 of the flange portion 46 is sized and shaped such that the outer edge 92 is positioned axially above the remainder of the flange portion 46 when the drain 10 is installed in an upright orientation (e.g., when the axis 50 is substantially vertical in orientation).

The base 18 also includes a first plurality of threaded apertures 136 formed into the flange portion 46 and outside the channel 38. During use, the threaded apertures 136 are configured to receive a threaded fastener 140 (see FIG. 2) therein to couple the connector 28 to the base 18. Similarly, the base 18 includes a second plurality of threaded apertures 144 on the underside thereof for securing the base 18 to the surface 5 or other building structure.

The base 18 also includes a cutting groove 148. The cutting groove 148 is formed into the base 18 at a first radial distance from the axis 50. During use, the cutting groove 148 is configured to receive and guide the tip of a knife or razor blade therein so the user can quickly and easily trim the paper or membrane 7 (discussed below) at the desired location. Furthermore, the cutting groove 148 also serves as a locating surface. More specifically, the cutting groove 148 is configured to interact with corresponding underside of the connector 28 to radially align and orient the connector 28 relative to the axis 50 of the base 18 (e.g., position the connector 28 co-axial with the base 18). While the illustrated cutting groove 148 includes a groove or channel extending into the base 18 configured to correspond with and at last partially receive a centering lip 20 therein, in other embodiments, the cutting groove 148 may include an annular lip whereas the connector 28 would include an annular groove.

In the illustrated embodiment, the cutting groove 148 includes a “step” having two adjacent surfaces against which the user's blade may be pressed (e.g., into the corner formed by the two surfaces). However, in alternative embodiments, the groove 148 may be enclosed on three sides (not shown). In still other embodiments, the cutting groove 148 may include other shapes and contours desirable to directing the user during the cutting process. While the illustrated groove 148 is annular in shape, in alternative embodiments, alternative shapes (e.g., polygonal, stepped, and the like) may also be present to produce the desired final cut dimensions. In some embodiments, the cutting groove 148 may be positioned at a location where the throat portion 42 meets the flange portion 46 at the radially inner barrier of the third portion 120 of the flange portion 46.

As shown in FIG. 4, the outlet 22 of the channel 38 generally defines an outlet size 24 generally corresponding to the size of the pipes forming the downspout of the plumbing system. For example, an outlet 22 having a 2″ size is configured to be coupled to a downspout formed from 2″ pipe as is well known and sized in the art while an outlet having a 3″ size is configured to be coupled to a downspout formed from 3″ pipe as is well known and sized in the art, and the like. It is understood that the size of the drain 10 may vary proportionally dependent upon the outlet diameter 24 of the outlet 22.

Illustrated in FIGS. 1-3, connector or collar 28 of the promenade drain 10 is configured to be coupled to both the base 18 and the frame 20 while providing an interface therebetween. The connector 28 is substantially disk-shaped having an annular body 170. The body 170, in turn, includes a first set of exterior lugs or mounting locations 174, a second set of interior lugs or mounting locations 178, and at least partially defines a first sliding surface 182. When the drain 10 is assembled, the connector 28 is fixedly coupled to the base 18 via the first set of mounting locations 174 whereby the frame 20 is able to rotate along the sliding surface 182 relative to the base 18 about the axis 50.

When the drain 10 is installed on a roof or other surface 5 having a membrane 7, the membrane 7 may be positioned between the connector 28 and the base 18 (see FIG. 4) such that the membrane 7 is captured therebetween to form a membrane joint. By doing so, the membrane 7 is secured in place and a water-tight joint may be formed between the connector 28, base 18, and membrane 7. In some embodiments, the membrane 7 may include a sheet of plastic or other sheet material laid upon the roof or other surface 5 to prevent water egress into the surface 5 material itself. During use, the connector 28 is configured so that the frame 20 (discussed below) may be rotated relative to the connector 28 (and as a result the base 18) independent of the membrane joint. Stated differently, the frame 20 may be rotated, placed in a locked position, placed in an unlocked position, and detached from the connector 28 without influencing the membrane joint. More specifically, the frame 20 does not influence the joint in the sense that it does not modify or physically alter the membrane joint while undergoing the prescribed tasks. In still other embodiments where no membrane 7 is present, the frame 20 may also be rotated, placed in a locked configuration, placed in an unlocked configuration, and detached from the connector 28 without influencing the joint between the connector 28 and the base 18.

The first set of radially exterior lugs 174 each extend radially outwardly from the body 170 and define a corresponding aperture 186 sized to receive a bolt or other fastener 140 therethrough. When assembled, the size and shape of each exterior lug 174 is configured so that the aperture 186 formed in the lug 174 is aligned with a corresponding one of the threaded apertures 36 of the base 18.

The second set of radially interior lugs 178 each extend radially inwardly from the body 170 and define a corresponding aperture 190 sized to receive a bolt or other fastener 140 therethrough. During use, the apertures 190 of the second set of interior lugs 178 are configured to threadably receive fasteners 194 therein to secure clamps 198 to the connector 28 (described below).

The underside of the body 170 of the connector 28 includes a contact surface 202 with a contour substantially corresponding with the top surfaces 104, 112, 120 of the flange 46 of the base 18. The underside of the connector 28 also includes a centering lip 206 configured to correspond to and engage with the cutting groove 148 of the base 18. When assembled, the cutting groove 148 and the centering lip 206 interact so that the connector 28 is radially centered relative to the base 18 (e.g., the base 18 and connector 28 are co-axial).

The topside of the body 170 of the connector 28 forms a first sliding surface 182 upon which the frame 20 rests during use. More specifically, the first sliding surface 182 is substantially annular in shape and is set at an oblique angle relative to the axis 50 to form a “dished” or frusto-conical shape. The frusto-conical shape provided by the sliding surface 182 helps to maintain the frame 20 in a co-axial relationship with the connector 28 as it rotates about the axis 50. The first sliding surface 182 is also substantially smooth so that the frame 20 is able to slide over the first sliding surface 182 without undue resistance.

As shown in FIG. 2, the frame 20 of the promenade drain 10 is configured to support the grate 30 of the drain 10 while also being rotatably adjustable relative to the base 18. More specifically, the frame 20 includes a body 210 having a first end 214 at least partially forming a grate seat 218, a second end 222 opposite the first end 214 forming a second sliding surface 226 configured to engage with and slide along the first sliding surface 182 of the connector 28, and defining a second channel 230 extending therethrough. In the illustrated embodiment, the first end 214 and the second end 222 are axially offset from one another a pre-determined distance. When assembled, the frame 20 is coupled to the base 18 via the connector 28 such that the second channel 230 is open to and in fluid communication with the channel 38 of the base 18.

The first end 214 of the frame 20 forms a grate seat 218 extending along the periphery thereof and configured to axially and radially support the grate 30 during use. As such, the first end 214 may also be referred to as an exposed end. In the illustrated embodiment, the seat 218 is rectangular in shape being sized to correspond with the size and shape of the grate 30. Therefore, the first end 214 has a rectangular cross-sectional shape.

The second end 222 of the frame 20 is substantially annular in shape forming the second sliding surface 226. The second end 222 has a circular cross-sectional shape. The second sliding surface 226 has a contour that substantially corresponds with the first sliding surface 182 of the connector 28 (e.g., frusto-conical) such that the two surfaces are configured to allow the frame 20 to rotate about the axis 50 relative to the connector 28 while generally maintaining the co-axial alignment between the two elements. As such, the second end 222 may also be referred to as a securable end. While the illustrated frame 20 is shown such that the second sliding surface 226 is in direct contact with and slides directly along the first sliding surface 182, it is understood that in other embodiments an intermediate layer may be present. For example, in some embodiments a layer of sheet material, a lubricant, bearings, and the like may be present between the two sliding surfaces 182, 226.

The second end 222 also defines a plurality of apertures 234 formed into the body 210 and open to the second channel 230. During use, the apertures 234 are configured to permit water to flow into the second channel 230 to avoid the buildup of water next to the drain 10 that is positioned below the axial height of the grate 30 (e.g., the first end 214). In the illustrated embodiments, the apertures 234 are formed into a vertical side wall 254 of the frame 20 (see FIG. 4) generally positioned adjacent to the lip 258.

The drain 10 also includes a plurality of clamps 238. The clamps 238 may alternatively be referred to as fastener receptacles. Together, the clamps 238 are configured to secure the frame 20 to the connector 28 (e.g., restrict the relative rotation therebetween). More specifically, the clamps 238 are adjustable between a locked configuration in which the clamps 238 are tightened down and restrict the relative movement between the frame 20 and the connector 28 (and as a result the base 18), and a loosened or unlocked configuration in which the clamps 238 are configured to generally maintain the axial position of the frame 20 relative to the connector 28 but allow the second sliding surface 226 to slide along the first sliding surface 182 thereby permitting the frame 20 to rotate about the axis 50 relative to the connector 28. In the illustrated embodiment, the clamps 238 may be adjusted between the locked and unlocked configurations by tightening and loosening the fasteners 194.

Furthermore, the clamps 238 of the illustrated embodiment may be adjusted between the locked and unlocked configurations without disturbing the joint formed between the connector 28, the base 18, and the membrane 7. The frame 20 may also be slid along the sliding surface 226 (e.g., be rotationally adjusted) without disturbing the joint formed between the connector 28, the base 18, and the membrane 7. Further still, the entire frame 20 may be detached from the connector 28 without disturbing the joint between the connector 28, the base 18, and the membrane 7.

As shown in FIG. 2, each clamp 238 includes a main body 242 and a protrusion 246 extending from the body 242. In the illustrated embodiment the body 242 also defines a slot 248 through which the fastener 194 may pass to be received within the connector 28. The protrusion 246, in turn, is configured to directly engage the second end 222 of the frame 20 (e.g., the lip 258) to form a clamping force thereon.

With additional reference to FIG. 4, the slot 248 of each clamp 238 is open along its entire axial height away from the protrusion 246. By doing so, the slot 248 is shaped so that the fastener 194 may be inserted into and removed from the slot 248 without having to completely unthread the fastener 194 from its corresponding mounting location 178. This improves ease of assembly by allowing the user to partially install the fasteners 194 into the connector 28 before introducing the frame 20 and clamps 238.

As shown in FIG. 1, the grate 30 of the promenade drain 10 includes a monolithic body (e.g., a cast body) defining a plurality of apertures 250 therethrough. During use, water collected on the surface 5 flows through the apertures 250 and into the second channel 230 (e.g., as illustrated in FIG. 2) where the water can then flow through the first channel 38 and into the plumbing system of the building. While the illustrated grate 30 is rectangular in shape (e.g., corresponding with the size and shape of the grate seat 218), in alternative embodiments different sizes and shapes may be present.

FIGS. 6-10 illustrate a promenade drain 1010 according to another embodiment of the disclosure. The promenade drain 1010 of FIGS. 6-11 is substantially similar to the promenade drain 10 of FIGS. 1-5. As illustrated in FIG. 6, the promenade drain 1010 is configured to be installed on a roof or other surface 1005 of a building (e.g., a floor, concrete slab, inclined ramp, and the like) and coordinate with a floor or other treatment applied thereto (e.g., tiles and the like). The promenade drain 1010 includes a base 1018 at least partially defining a channel 1038 and an outlet 1022, a frame 1020 adjustably rotatable relative to the base 1018, a connector 1028 positioned between and connected to both the base 1018 and the frame 1020, and a grate 1030 supported by the frame 1020. When installed, the channel 1038 of the drain 1010 is placed in fluid communication with a plumbing system (e.g., a network of conduits to reroute the rainwater off of the surface, not shown) of the corresponding building such that water accumulating on the surface 1005 flows through the grate 1030 and is subsequently collected by the drain 1010 and directed into a plumbing system for the surface 1005 via the channel 1038.

The base 1018 of FIGS. 6-10 is substantially similar to the base 18 of FIGS. 1-5. As such, the base 1018 will not be described in detail herein. Any reference to base 1018 will include the same reference numbers as base 18 with the prefix of 1000 added thereto.

As shown in FIG. 7, the connector or collar 1028 of the drain 1010 is configured to extend between and be coupled to both the base 1018 and the frame 1020. In the illustrated embodiment, the connector 1028 is substantially disk-shaped having an annular body 1170. The body 1170, in turn, includes a first set of exterior lugs or mounting locations 1174, a second set of interior lugs or mounting locations 1178, and at least partially defines a first sliding surface 1182. When the drain 1010 is assembled, the connector 1028 is fixedly coupled to the base 1018 whereby the frame 1020 is able to rotate along the sliding surface 1182 relative to the base 1018 about the axis 1050.

In embodiments where the drain 1010 is installed on a roof or surface 1005 having a membrane 1007, the membrane 1007 may be positioned between the connector 1028 and the base 1018 (see FIG. 6) such that the membrane 1007 is captured and retained therebetween forming a membrane joint. By doing so, the membrane 1007 is secured in place relative to the drain 1010 and a water-tight joint may be formed between the connector 1028, base 1018, and membrane 1007. In some embodiments, the membrane 1007 may include a sheet of plastic or other sheet material laid upon the roof or other surface 1005. During use, the connector 1028 is configured so that the frame 1020 (discussed below) may be rotated relative to the connector 1028 (and as a result the base 1018) independent of the membrane joint. Stated differently, the frame 1020 may be rotated, placed in a locked position, placed in an unlocked position, and detached from the connector 1028 without influencing the membrane joint. More specifically, the frame 1020 does not influence the joint in the sense that it does not modify or physically alter the membrane joint while undergoing the above prescribed tasks. In still other embodiments where no membrane 1007 is present on the surface 1005, the frame 1020 may also be rotated, placed in a locked configuration, placed in an unlocked configuration, and detached from the connector 1028 without influencing the joint between the connector 1028 and the base 1018.

With further reference to FIG. 7, the connector 1028 also includes a gravel guard 1520 formed integrally with the connector body 1170 and configured to restrict the ability of gravel and/or other debris from flowing into the channel 1038 during operation. More specifically, the gravel guard 1520 includes a plurality of arcuate wall segments or teeth 1258 that extend axially upwardly from the body 1170 along the entire circumference thereof and that are separated by a plurality of gullets 1262. The gullets 1262, in turn, are flush with the sliding surface 1182 to minimize the vertical height over which water must flow to reach the channel 1038.

In the illustrated embodiment, each tooth 1258 of the gravel guard 1520 generally extends over an evenly spaced angular portion of the circumference of the connector 1028 and is separated from adjacent teeth 1258 by equally sized gullets 1262. However, in other embodiments, different arcuate tooth lengths and gullet widths may be present. In still other embodiments, the elongated walls may instead be replaced or supplemented by one or more protrusions extending outwardly from the connector 1028. Such protrusions may include, but are not limited to, pyramid shaped protrusions, conical shaped protrusions, teardrop shaped protrusions, hemispherically shaped protrusions, and the like.

While the illustrated gravel guard 1520 is shown being formed integrally with the connector 1028, it is understood that in other embodiments the gravel guard 1520 maybe formed separately from the connector 1028. In such embodiments, the gravel guard 1520 may be secured to the base 1018 using the same fasteners 1140 that secure the connector 1028 to the base 1018.

As shown in FIG. 7, each lug 1174 of the first set of radially exterior lugs 1174 of the connector 1028 is equally positioned along the circumference of the connector 1028 defining an aperture 1186 therethrough. Each aperture 1186, in turn, is positioned to align with a corresponding threaded aperture 1136 formed in the base 1018. In the illustrated embodiment, the radial location of the lugs 1174 generally align with the location of the teeth 1258 of the gravel guard 1520 so that the lugs 1174 are incorporated therein.

The second set of radially interior lugs 1178 each extend radially inwardly from the body 1170 and define a corresponding aperture 1190 sized to receive a bolt or other fastener 1194 therein. During use, the apertures 1190 of the second set of interior lugs 1178 are configured to threadably receive fasteners 1194 therein to secure clamps 1238 to the connector 1028 (described below).

The underside of the body 1170 of the connector 1028 includes a contact surface with a contour substantially corresponding with the top surfaces of the flange 1046 of the base 1018. More specifically, the underside of the body 1170 of the connector 1028 includes a centering lip 1206 configured to correspond and engage with the cutting groove 1148 of the base 1018. When assembled, the cutting groove 1148 and the centering lip interact so that the connector 1028 is radially centered relative to the base 1018 (e.g., the base 1018 and connector 1028 are co-axial).

The topside of the body 1170 of the connector 1028 forms a first sliding surface 1182 upon which the frame 1020 rests during use. More specifically, the first sliding surface 1182 is substantially annular in shape and is set at an oblique angle relative to the axis 1050 to form a “dished” shape (e.g., a frusto-conical shape). The frusto-conical shape provided by the sliding surface 1182 helps to maintain the frame 1020 in a co-axial relationship with the connector 1028 as it rotates about the axis 1050. The first sliding surface 1182 is also substantially smooth so that the frame 1020 is able to slide over the first sliding surface 1182 without undue resistance.

With reference to FIGS. 6 and 8, the frame 1020 of the promenade drain 1010 is configured to support the grate 1030 of the drain 1010 while also being rotatably adjustable relative to the base 1018. More specifically, the frame 1020 includes a body 1210 having a first end 1214 at least partially forming a grate seat 1218, a second end 1222 opposite the first end 1214 forming a second sliding surface 1226 configured to engage with and slide along the first sliding surface 1182 of the connector 1028 (see FIG. 7) and defining a second channel 1230 extending therethrough. In the illustrated embodiment, the first end 1214 and the second end 1222 are axially offset from one another a pre-determined distance. When assembled, the frame 1020 is coupled to the base 1018 via the connector 1028 such that the second channel 1230 is open to and in fluid communication with the channel 1038 of the base 1018.

The first end 1214 of the frame 1020 forms a grate seat 1218 extending along the periphery thereof and configured to axially and radially support the grate 1030 during use. As such, the first end 1214 of the frame 1020 may also be referred to as an exposed end. In the illustrated embodiment, the grate seat 1218 is rectangular in shape being sized to correspond with the exterior size and shape of the grate 1030. While the illustrated seat 1218 is rectangular, in other embodiments, the grate seat 1218 may include other shapes to accommodate grates 1030 having different sizes and shape such as, but not limited to, circular, polygonal, asymmetric, and the like.

In some embodiments, the first end 1214 of the frame 1020 may also include a frame cover 1544 configured to enclose and cover at least a portion of the grate seat 1218. The frame cover 1544 may be formed separately from the frame 1020 and attached thereto using fasteners, adhesive, welding, and the like. In some embodiments, the frame cover 1544 may be formed from a separate type of material than the frame 1020. In still other embodiments, the frame cover 1544 may include anti-bacterial qualities, be more aesthetically pleasing, and the like.

The second end 1222 of the frame 1020 is substantially annular in shape having a first cylindrical wall 1528 extending away from the first end 1214 to produce a distal end 1532, and a second annular wall 1536 extending radially inwardly from the distal end 1532 of the first wall 1528 to forming the second sliding surface 1226 on the underside thereof (e.g., opposite the grate seat 1218. The second end 1222 may also be referred to as a securable end. As shown in FIG. 6, the second sliding surface 1226 has a contour that substantially corresponds with the first sliding surface 1182 of the connector 1028 (e.g., frusto-conical in shape) such that the two surfaces 1182, 1226 are configured to allow the frame 1020 to rotate about the axis 1050 relative to the connector 1028 while generally maintaining the co-axial alignment between the two elements.

The second end 1222 also defines a plurality of apertures or channels 1234 formed into the body 1210 and in fluid communication with the second channel 1230. More specifically, the apertures 1234 are formed into the second wall 1536 of the frame 1020 being open to the second sliding surface 1226. During use, the apertures 1234 are configured to permit water to flow into the second channel 1230 from outside the frame 1020 to avoid the buildup of water next to the drain 1010 that is positioned below the axial height of the grate 1030 (e.g., the first end 1214). When the promenade drain 1010 is assembled, the second sliding surface 1226 of the second end 1222 is recessed below the top plane 1096 of the base 1018 such that the channels 1234 open to the second sliding surface 1226 are also recessed below the top plane 1096.

The drain 1010 also includes a plurality of clamps 1238. Together, the clamps 1238 are configured to secure the frame 1020 to the connector 1028 to restrict any relative rotation therebetween. More specifically, the clamps 1238 are adjustable between a locked configuration in which the clamps 1238 are tightened down and restrict the relative movement between the frame 1020 and the connector 1028 (and as a result the base 1018), and a loosened or unlocked configuration in which the clamps 1238 are configured to generally maintain the axial position of the frame 1020 relative to the connector 1028 but allow the second sliding surface 1226 to slide along the first sliding surface 1182 thereby permitting the frame 1020 to rotate about the axis 1050 relative to the connector 1028. In the illustrated embodiment, the clamps 1238 may be adjusted between the locked and unlocked configurations by tightening and loosening the fasteners 1194.

With continued reference to FIGS. 6 and 8, the clamps 1238 of the illustrated embodiment may be adjusted between the locked and unlocked configurations without disturbing the joint formed between the connector 1028, the base 1018, and the membrane 1007. The frame 1020 may also be slid along the sliding surface 1226 (e.g., be rotationally adjusted) without disturbing the joint formed between the connector 1028, the base 1018, and the membrane 1007. Further still, the entire frame 1020 may be detached from the connector 1028 without disturbing the joint between the connector 1028, the base 1018, and the membrane 1007.

With continued reference to FIGS. 6 and 8, each clamp 1238 includes a main body 1242 and a protrusion 1246 extending from the body 1242. In the illustrated embodiment the body 1242 also defines a slot 1248 through which the fastener 1194 may pass to be received within the connector 1028. The protrusion 1246, in turn, is configured to directly engage the second end 1222 of the frame 1020 (e.g., the second wall 1536) to form a clamping force thereon.

FIGS. 6 and 9 illustrate the grate 1030. The grate 1030 of the promenade drain 1010 includes a body defining a plurality of apertures 1250 extending therethrough that are open to the channel 1038. More specifically, the body of the grate 1030 includes a first or bottom portion 1030a and a second or cover portion 1030b attached to or otherwise applied to the first portion 1030a to form a support surface 1540.

The first portion 1030a of the grate 1030 includes a matrix of interconnecting ribs 2366 intended to provide rigidity to the grate 1030 for load applied thereto. As shown in FIG. 10, the ribs 2366 are generally oriented perpendicular to each other to form a rectangular array. In the illustrated embodiment, the ribs 2366 increase in thickness as they extend away from the periphery of the grate 1030 and are at their thickest at the center thereof.

The second portion 1030b of the grate 1030 includes an aesthetic cover. In the illustrated embodiment, the first portion 1030a and the second portion 1030b define different grate patterns such that the apertures 1250 formed do not necessarily align with each other over the entire area of the grate 1030. However, in other embodiments, the grate pattern of the first portion 1030a and the grate portion of the second portion 1030b may be identical. Furthermore, the first portion 1030a and the second portion 1030b of the illustrated embodiment are formed from different materials. For example, the first portion 1030a may be formed from cast iron while the second portion 1030b may be formed from stainless steel or other materials having anti-bacterial or antimicrobial properties. The antimicrobial epoxy kills bacteria and other harmful microbial organisms that reach the promenade drain 1010 as a result of rainwater buildup on the roof or surface. As such, the antimicrobial epoxy improves the cleanliness of the support surface 1540 of the grate 1030, thereby reducing the amount of microbial organisms a pedestrian walking over the promenade drain 1010 may pick up as a result of walking over the promenade drain 1010.

During use, water collected on the roof or surface 5 flows through the apertures 1250 and into the second channel 1230 (e.g., as illustrated in FIG. 6) where the water can then flow through the first channel 1038 and into the plumbing system of the building. While the illustrated grate 1030 is rectangular in shape (e.g., corresponding with the size and shape of the grate seat 1218), in alternative embodiments different sizes and shapes may be present.

With continued reference to FIG. 11, in some embodiments the promenade drain 1010 may include a basket 1278. The basket 1278 has a frustoconical body 1282 and an upper flange 1286. The frustoconical body 1282 is perforated such that the basket 1278 strains fluid flowing through the promenade drain 1010 before being discharged through the outlet 1022. The frustoconical body 1282 therefore inhibits larger objects such as, but not limited to, rocks and sticks from travelling down the first channel 1038 and into the building's plumbing system.

With additional reference to FIG. 12, the upper flange 1286 of the basket 1278 includes handles 1290 that are graspable by the user to manipulate and selectively place and remove the basket 1278 from the frame 1020 of the promenade drain 1010.

Each of the plurality of slots 1294 is configured to receive a corresponding one of the plurality of clamps 1238. As such, the basket 1278 couples to the promenade drain 1010 between the frame 1020 and the connector 1028 via the plurality of clamps 1198.

FIG. 13 illustrates the method 1500 of installing the promenade drain 1010 onto a roof or surface 1005. With reference to FIGS. 6 and 13, as illustrated at step 1504, the method 1500 includes positioning the base 1018 relative to the roof or surface 1005 so that the outer edge 92 of the base 1018 is substantially aligned with the top surface 1009 of the roof or surface 1005. With the base 1018 in place, any connections between the plumbing system and the outlet 1022 of the base 1018 can be plumbed.

Step 1508 includes coupling the connector 1028 to the base 1018 with the membrane 1007 disposed therebetween. First, the user positions the membrane 1007 over the base 1018 and trims the membrane 1007 to size using the cutting groove 1148 as a guide. With the membrane 1007 trimmed and lying over the base 18, the user can then align the connector 1028 with the base 1018 using the centering lip 1206 and the cutting groove 1148. With the connector 28 in place, the two items are coupled together using a plurality of fasteners 1140 passing through the first exterior lugs 1174 and being threadably received within the threaded apertures 1136 of the base 1018.

Although step 1508 is described after step 1504, step 1504 and step 1508 are interchangeable. That is, in some embodiments, the method 1500 includes first coupling the connector 28 to the base 18 with the membrane 7 disposed therebetween such that the membrane 7 provides a waterproof seal between the connector 28 and the base 18 of step 1508 and then positioning the base 18 and membrane 1007 together relative to the roof or surface 1005 so that the outer edge 92 is substantially aligned with the topside of the surface and the membrane 1007 is disposed on top of the top surface 1009.

Step 1512 includes coupling the frame 1020 to the connector 1028 and the base 1018. With the connector 1028 attached, the frame 1020 is then positioned whereby the second sliding surface 1226 rests upon the first sliding surface 1182. The clamps 1238 are then loosely installed being bolted to the connector 1028 using the fasteners 1194 (e.g., in the unlocked configuration). The frame 1020 may then be rotated relative to the connector 1028 until the desired orientation is achieved. The frame 1020 is coupled to the connector 1028 and the base 1018 independently of the membrane 1152 such that the frame 1020 can be rotated relative to the connector 1028 without disturbing the joint between the connector 1028, the base 1018, and the membrane 1007.

Step 1516 includes securing the frame 1020 to the connector 1028. The frame 1020 is secured to the connector 1028 by tightening each of the fasteners 1194 (e.g., placing the clamps 1238 in the locked configuration). Finally, the grate 1030 can be put in place atop the frame 1020. The drain 1010 is then ready for operation.

After the initial installation process takes place as described above, the user may subsequently adjust the frame 1020 without disturbing the joint between the connector 1028, the base 1018, and the membrane 1007. To do so, the user first places the clamps 1238 in the unlocked configuration, and the rotates the frame 1020 into the desired orientation. Finally, the user replaces the clamps 1238 into the locked configuration.

Although the invention has been described with reference to certain embodiments, variations and modifications exist within the spirit and scope of the invention. Various features of the invention are set forth in the following claims.

PROMENADE DRAIN

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