MXPA99006328A - Base of a manhole having a canal-bed liner - Google Patents

Abstract

A base (12) for a manhole or catch basin structure having an embedded plastic canal-bed liner (10) and a corresponding hood (100). The plastic liner (10) has an annular, outwardly extending flange (30) which becomes embedded in a sidewall of the base (12) to form a unitary structure when the concrete is poured. The liner (10) is not subject to delamination from the canal-bed and includes bosses (60) for additional anchoring to the base. In an alternative preferred embodiment, a seal (42) and seal adapter (44) are provided. The adapter (44), in combination with an integral socket (18) of the canal-bed liner, restrains the seal (42) within a canal-bed sidewall opening (24). This combination also serves to conveniently position the seal at time of casting. The canal-bed liner and hood serve to protect the concrete base and cone of the manhole from corrosive fluids, thus extending the useful life of the manhole structure.

Description

BASE OF A PIPE RECORD THAT HAS A BED LINING. GROOVED Background of the Invention I. Field of the Invention The present invention relates generally to recording and manifold structures used to join drain pipes, while providing a cleaning or inspection well. More particularly, this refers to the base of a log or collector that has a coating impervious to fluted bed fluids and to an associated method, to reduce the exposure of the concrete base, to corrosive chemical materials and thus, extending life useful of the structure and connections of the well, formed by the ribbed bed, allowing an easy connection with a rubber packing.

II. Background of the Invention Sewage and sanitary sewer systems are typically comprised of a plurality of lattice drainage pipes. These pipes are traversed occasionally or. joined together to a Ref .: 30675 registry or a collector structure. These structures serve as a node for the drainage system and also provide an access or revision well. The devices for unblocking the drain pipes can be inserted into the drain pipes at the location where the structure of the register is located and then, be guided through the pipes to remove the obstructions that are close to the structure of the record. When a register or a collector is initially constructed, it comprises a base with concentric sides extending upwards. Positioning above the concentric sides, a pre-formed cone is found. A steel support frame and a cover or strainer are placed on top of the cone. The base and cone of the log structures are typically comprised of bricks or cast concrete, weigh several tons and can have diameters of three meters or more. The lower portion of the base of the register is referred to as a ribbed bed. The logs and collectors are embedded below the surface of the earth and are typically below streets, at depths of three meters or more. Of course, the total size of the base affects both the cost of manufacturing the base and the cost of building the registry. The base of the register or manifold structure may include one or more openings adapted to receive a tube and a gasket or a "0" ring to seal a tube to a corresponding connection to the base. This sealing configuration prevents the drain from leaking around the pipes into the frigid water or ground water that is adjacent to the grooved bed of the base. A variety of packaging seals are known, which are adapted to provide a leak-proof seal between the base and the pipe. Such a packaging seal is disclosed in U.S. Patent No. 3,796,406, which is assigned to A-Lok Corporation of Trenton New Jersey. This seal is generally A-shaped and is embedded by means of legs set within the concentric sides extending upwards from the base, around the opening formed therein. Another type of packaging is disclosed in U.S. Patent No. 4,159,829, which is also assigned to A-Lok Corporation. This seal generally has T-shaped anchor tabs that are also cast into the sides of the base that are around the opening. These packages can be difficult to orientate during the casting of the base. Once the log or collector has been built, the fluids that pass through it tend to deteriorate the structure. For example, drainage and putrid water are very acidic and may comprise hydrogen sulphide and sulfuric acid. Over time, exposure to drains and putrid water can damage the concrete in the ribbed bed, the base and the cone. In the collectors, the salt of the asphalt has the same effect on the fluted bed. This is because the concrete can eventually be broken by the salt of the asphalt, especially if the concrete is of poor quality. When it is required to repair or replace any of these registers / collectors, due to a fluted bed, base or damaged cone, the process is extremely expensive, time consuming and difficult. In order to comply with the need to increase the useful life of these structures and to protect the fluted bed, plastic coatings or shells with fully defined channels have been developed. Such a ribbed bed cuirass is disclosed in U.S. Patent No. 4,483,643, assigned to Guggemos. Guggemos describes constructing drains or channels, by means of assembling tubes and providing between the tubes, corrugated bed shells at least, those positions where cleaning wells or inspection wells will be provided. The ribbed bedcover discovered by Guggemos is cast either on top of or on a concrete bed, or subsequently anchored in it. A well is then erected above the fluted bed. Guggemos describes using a compound or something similar to join the well with the fluted bed, to seal the fluted bed and avoid contamination by cold water. These joining compounds can deteriorate, be misaligned or separated from the well and the fluted bed lining, thus increasing the risk of contamination by cold water. In the device discovered by Guggemos, the depth of the channel is discovered to be equal to or greater than the inner diameter of the drainage pipes coupled to it. When the height of the ribbed bedplate is required to be at least greater than the inside diameter of the pipes or drainage pipes, a substantial amount of additional concrete or other material is required. This substantial amount of additional concrete increases the cost of manufacturing, increases the total weight of the fluted bed and increases the cost of construction of the record. Accordingly, there is a need for a fluted bed or base coated with a reduced weight, which provides sufficient fluid direction within the fluted bed and completely seals with a corresponding pipe. The present invention meets these needs and overcomes this and other disadvantages of the prior art.

Objectives of the Invention Accordingly, it is a principal object of the present invention to provide a liquid-impermeable corrugated bed liner, for use in registers or manifolds, wherein the liner is cast into the base and includes a relatively round opening extending through the base. the base, to insert an adjacent pipe separately. Another object of the present invention is to provide a fluted bed that has a coating that directs a sufficient amount of fluid through it, while reducing the weight of the base and the fluted bed. A further object of the present invention is to provide a packing and lining configuration of a ribbed bed for attaching drainage pipes therein, wherein the lining is not subject to delamination by the base. Still another object of the present invention is to provide an improved method for integrating a plastic ribbed bed liner and a sealant pack into a cast concrete base. Still another object of the present invention is to provide a method for building a one-piece base having a ribbed bed covering that does not facilitate the accumulation of solid drainage and results in clogging. These and other advantages, features and objectives of the present invention will become apparent to those skilled in the art, when the following detailed description is read, in conjunction with the appended claims and drawings, taking into account that similar reference numerals in the several views refer to the same corresponding parts.

Brief Compendium of the Invention According to the present invention, the above objects and advantages are achieved by providing a grooved bed of the base of a registration structure with a liquid impervious coating, having a peripheral flange and at least one connection extending inwardly from the side wall of this. The connection is aligned with a grooved bed channel. The channel has a depth that is approximately half the diameter of the opening in the wall. In conjunction with the coating, a cover is provided which directs the corrosive gases, including hydrogen sulfide, to the coating and apart from the side walls of the base and the cone of the record. During the casting process, a plug or insert is disposed in the connection of the liner and extends from it towards the side wall which is molded outwards. The pin prevents distortion of the round connection due to the weight of the concrete. The plug also creates and forms a round opening that extends through the side wall of the base, adjacent to the grooved bed channel. Once the mixed concrete is poured, the plug can be removed, thereby defining an opening in the side wall of the base through which the drain pipes can enter. A flexible annular seal member can be placed in this opening between the liner and the drain pipes. In this way, the leakage of fluids outwardly or alternatively into the drainage system is substantially reduced. In various embodiments of the present invention, a liner is provided having two or more connections extending through the side wall of the base and communicating with the grooved bed channel. Preferably, both the coating and the insert are formed or modeled from a plastic material. In an alternative embodiment, the liner has at least one integral pipe receiving plug extending partially inward of the opening of the side wall of the structure. The plug is placed adjacent to an annular seal and together with an annular insert, holds the annular seal within the opening. Preferably, an outer perimeter seal has an L shape, which is compressed between the liner plug and the opening insert. This liner pin has a defined backing portion between the seal and the channel. When installed, the drain pipe or pipe is pulled out against this backing to provide an interface without levels between the inner surface of the pipe and the lining channel. A method for forming the unit concrete channel bed structure, having a package molded therein, is discovered and includes: first, providing a vertical mold column having a top surface. Next, a liquid impermeable coating having at least one pipe receiving pin is positioned along the upper surface of a mold column in such a manner that the periphery of the coating extends radially above the upper surface of the column. printed. Next, an outer wall of the mold is provided around the vertical mold column, to define a spacing between these. This outer wall of the mold extends above the upper surface of the mold column. Then, the concrete is poured into the spacing to fill it. The extending portion of the liner is thus, embedded in the concrete. After allowing sufficient time for the concrete to harden, the column of the mold and the outer wall of the mold are removed from the bed structure of the cast channel. Seal and seal adapter are sanded into the liner plug before setting to concrete. This method allows the seal to be accurately positioned within an opening communication with the liner plug.

Brief Description of the Drawings Figure 1 is a partial sectional view of a ribbed bed, a ribbed liner, a cone, a pair of spacer members, a support frame and a record cover, all aligned and connected; Figure 2 is a perspective view of a molded plastic bed sheeting molded according to one embodiment of the present invention; Figure 3 is a planar, sectional, and elongated top view of the rib bedding of the type shown in Figure 2; Figure 4 is a side elevational and sectional, partial and elongated view of the rib bedding according to one embodiment of the present invention, placed within the base of a log structure and having a drain pipe inserted into the liner of the ribbed bed; Figure 5 is a top plan view of a plastic molded fluted bed sheet, according to one embodiment of the present invention; Figure 6 is a top plane view of a plastic molded fluted bed sheet, according to one embodiment of the present invention having two pegs 90 ° apart; Figure 7 is a top plane view of a plastic molded fluted bed sheet, according to one embodiment of the present invention having two pegs separated by 135 °; Figure 8 is a top plane view of a plastic molded fluted bed sheet, according to one embodiment of the present invention having two pegs 180 ° apart; Figure 9 is an elevated view of the plastic ribbed bed liners of the type shown in Figure 1, formed back to back, as they are removed from a mold and before they are separated; Figure 10 is an end view taken along line 10-10 of Figure 9, illustrating pipe plugs integrally formed to the respective lining; Figure 11 is a sectional partial view of an alternative embodiment, having a pipe sealing configuration different from that shown in Figure 1, wherein a seal adapter ring is integrally formed to the pipe opening of the structure concrete register and where a seal is interposed between the adapter ring and the pipe plug of the fluted bedliner; Figure 12 is the configuration of Figure 11 with a drain pipe connected in isolation to the pipe plug of the fluted bed structure, where the inner surface of the pipe is placed at the same level as the fluted bed channel bottom coated; Figure 13 is a sectional side view of the cast assembly used to set the ribbed bed structure, with the ribbed plastic bed covering embedded within it, the structure being formed in an inverted position.

Description of the Preferred Modality Referring first to Figure 1, there is generally shown a fluted bed liner 10 embedded in a base 12 of a registration structure. A conical shaped cover 100 and a cover 106 are shown placed within the registration structure, next to the fluted bed cover 10. The conical shaped cover 100 and the cover 106, are preferably made of polyethylene, polytetrafluoroethylene, another similar polymer chemically inert and impermeable to fluids. The cover is preferably conical in shape with an opening near the apex. A cap 106 is adapted to isolate the opening of the conically shaped cover 100. The cover 100 rests on the rests or struts 104 of known construction which are anchored within the side wall of the base 12. This formed a flange. 102 along an outer edge of the cover 100, wherein the flange 102 fits the side wall of the base 12. A caulking, such as a butyl rope, can be used to seal the flange 102 of the cone-shaped cover 100, to the base 12. In this way, the hydrogen sulfide can be directed towards the fluted bed liner 10 and be generally contained within the fluted bed, consequently reducing the possibility of deterioration of the base and cone as a result of exposure to hydrogen sulfide. The rungs 105 extend from an exterior surface of the cover and provide support for anyone who checks the ribbed bed liner 10. Those skilled in the art will appreciate that one bracket (not shown) can be placed between the cover 100 and the liner 10, to support thus, the cover 100 itself is that the friática water leaks into the registration structure through the cone or the base plate. Figure 2 shows a fluted bed liner 10 before being embedded in the base 12. The fluted bed liner 10 is generally of a plate shape and includes an annular side wall 14 and a sloping bottom 16 to consequently form a layer liquid protector on the inner bottom of the base 12. At least one connection 18 is formed within the annular side wall 14 of the fluted bed liner 10. The connection 18 is adapted to receive, for example, a water pipe. drain 20 (see Figures 3 and 4). During the setting process, which is described in more detail below, a cylindrical pin 22 is used to prevent deformation of the connection 18 and to further define an opening 24 (see Figures 2-4) in the base 12. The pin Cylindrical 22 includes a first cylindrical portion 26 having an outer diameter that approximates the inner diameter of the connection 18 and a backing 28 having a second outer diameter that is greater than the first diameter 26 and forms the opening in the base 12. During setting, the fluted bed liner 10 is integrally formed to the base 12. "The annular side wall 14 of the fluted bed liner 10 includes an outwardly projecting flange 30 which is embedded within the base 12 during setting of the base 12. Preferably, the fluted bed liner 10 is comprised of a polyethylene of 65-fold thickness, but may be formed of other waterproof-to-fluids materials. Consequently, the limitation of using only polyethylene is not inferred. Referring also to Figures 3 and 4, the bottom 16 of the fluted bed liner 10 is shown inclined towards channel 32 formed in the bottom 16 of the fluted bed liner 10. Extending from the bottom 16 of the fluted bed liner 10 is a plurality of protrusions 60. Rods may be screwed into the protuberances 60 to thereby secure the bottom portion of the fluted bed liner 10 to the concrete base 12. The channel 32 has a semicircular cross-section with a depth of about means of the inside diameter of the pipe 20. A sharp backing 34 is formed between the connection 18 and the channel 32 to provide a stepless interface. The depth of channel 32 meets the specifications of the American Society of Testing and Materials. { ASTM) which requires that the depth of the channel be at least half the width of the pipes connected to it. When the pipes 20 are placed within the connection 18, one end of the pipe protrudes from the backrest 34, such that the longitudinal portion of the inner surface of the pipe 20 is flush with the bottom surface of the channel 32. Accordingly, sediment and other debris will not accumulate at this interface and a smooth transition will be provided for fluid from the liquids. Accordingly, the flow of liquids entering the base 12 from a pipe 20 will flow unobstructed through the base 12., through the channel 34, towards an outlet or second opening 24. Figures 3 and 4 show a drain pipe 20 adapted in isolation to the connection 18 and to the opening 24 defined through the base 12. An insulated packing or seal 36 is shown positioned around the end of each pipe 20, each gasket 16 being placed in isolation against the side wall of the base 12, within the respective opening 24 and the inner surface of the connection 18. The gaskets 36 serve to prevent the Freezing water is contaminated with the drain or with the contaminating liquids that pass through the pipes 20 into the base 12. The packages 36 may be of the type that are adjusted by expandable pressure of a known construction, distributed by NPC, Inc. of Milford, New Hampshire. Each seal 36 is pressed against the inner surface of its respective plastic connection 30, within the respective openings 14. Thus, the rainwater or drainage water passing through the pipe 12 can not come into contact with the cast concrete defined in the openings 24. Those skilled in the art will appreciate that more than one opening 24 and more than one connection 18 may be formed in the base 12. Figures 5 to 8 illustrate various embodiments of the fluted bed covering 10, having one or more connections 18. When two or more openings 24 and connections 18 are provided, channel 34 extends between the opposite connections 18 to define a liquid path that guides the liquid from one connection to another. While a pair of opposite connections 18 is shown with a linear channel 34 extending between them in Figure 8 >; it should be recognized that channel 34 may be for example, curved between 90 and 180 degrees, to effectively return to route the direction of liquid flow. It is recognized that in another embodiment, the channel 34 may be formed of a Y-shaped channel for dividing and redirecting the drain or other liquids. The drain can enter a connection and exit through two output connections or vice versa. In yet another embodiment, the channel 34 may terminate in the center of a liner 10 (as shown in Figure 5) such that the liner 10 has only one outlet connection 18 that serves as an inlet / outlet port. Accordingly, the limitation to the number of connections 18, or the shape of the channel 34 that is implemented, will not be inferred. Instead, the implementation of a plastic fluted bed liner, having an upper peripheral flange embedded within the base 12 to inhibit delamination, is one of the main teachings of the present invention. Referring now to Figures 9 and 10, plastic ribbed bed liners 10 are shown being formed in pairs in a molding operation. These are molded as a single unit 34, back to back with one another. The flange 30 of each liner 10 interfaces with the other, the flanges 30 being separated by an intentionally annular floor 40. After molding, using the known molding techniques such as rotational molding, each of the 10 is separated from one another by cutting along the floor via 40, extending between them to create two identical coatings. The 40th floor facilitates the degree of cutting member, as has been seen and helps to achieve a straight cut to separate the two identical coatings from one another. Figure 10 shows the circular openings of the connections 18. As can be seen from Figures 9 and 10, the bottom surface of the channel 34 is shown being slightly inclined upwards, going towards the connection 18, towards the middle section of the covering 10. Channel 34 is the least deep in the middle section of it. Accordingly, if the flow is to be reduced to zero, the drain can be directed to remain motionless within the pipes 20 and not just the liner 10 or inside the base 12. Referring now to Figures 11 and 12, it is shown an alternative mode having a configuration • Seal for use with the embedded plastic liner 10 of the present invention. An annular, liquid impermeable seal 42 is provided, which is set and aligned within the opening 24 of the base 12. The annular seal 42 formed of vulcanized rubber is shown interposed and secured between the ends adjacent to the seal adapter. flange 44 and the connection 18 of the liner 10. The seal 42 extends radially inwardly of the opening 24 and is adapted to bend or flex and to fit in isolation against the outer surface of the pipe 20 when it is inserted into the opening. 24 (see Figure 12). The flange of the seal 42 generally has an A-shaped cross section. When the pipe 20 is inserted into the opening 24, a large contact surface is formed between the seal 42 and the pipe 20 to effectively prevent liquids from leaking out. inside the friática water. The combination of the seal 42, the liner 10 and the flange seal adapter 44, is integrated into the base 12 as it is set (see Figure 13). The combination of the adapter 44 and the liner 10 serves to provide a liquid impervious coating for the inner surface of the base 10, which could otherwise be exposed to the drain. The combination of the adapter 44 and the liner 10 further serve to align and maintain the seal 42 within the opening 24 of the base 12. Thus, at the time of setting of the concrete base 12, the seal 42 will be properly oriented and will not be you can slip or lose inside the defined opening 24. The adapter 44 and the liner 10 essentially press the annular seal 42 between them to hold it in place. Referring now to Figure 13, a method for fabricating the base 12 using the liner 10 of Figures 9 and 10 will be discussed, but which is also used to form a ribbed bed structure in accordance with the preferred embodiment of the invention in the Figures 1 to 4. The liner 10 is set within the base 12, by first placing the liner 10 in an inverted position, to a cylindrical pedestal 50 (forming the inner side wall of the base 12) having a respective and identical diameter. . The seal 42 and the flange seal adapter 44 are subsequently inserted into the respective connections 18. Next, a rigid, cylindrical tubular mold member 52 (forming the outer cylindrical side wall of the base 12) is placed around the liner 10 and the pedestal 50 in such a way that the ends of each liner 18 of the liner 10 fit to the inner walls of the mold member 52, as shown. In molding the preferred embodiment, the end of the pin 22 fits the inner wall of the mold member 52. Thus, an opening 24 is defined between the mold pedestal 50 and the inner walls of the mold member 52. As can be seen, the flange 30 of the liner 10 is disposed between pedestal 50 and the mold member 52 and also, extends downward, within the spacing. The liquid concrete is poured into the spacing and allowed to dry. Accordingly, the flange or flange 30 of the liner 20 is embedded within the concrete wall of the structure 10. After the concrete has been cured for a predetermined and sufficient amount of time, the pedestal 50 and the mold member 52 are withdrawn to release the unitary grooved bed or base 12 together with the liner 10 that is embedded in it. As mentioned above, the flange 30 is embedded within the walls of the base 12. Accordingly, the covering 10 can not delaminate from the interior walls thereof. In summary, a corrugated bed or improved base is discovered for use in a log structure with a cover and a recessed recessed bed covering, corresponding, which is not subject to delamination. The coating is embedded in the structure when it is set to provide a unitary structure. In an alternative preferred embodiment, a lining assembly with a package interposed between the liner and the opening of the base is discovered. This configuration allows the gasket to be accurately positioned within the pipe opening at the time of setting and also allows the seal to be integrally formed to the base 12. The flange seal adapter also serves to align the gasket opening. the pipeline and consequently, protecting the concrete. Both the flange seal adapter and the fluted bed cover can be formed in pairs and are molded as a single unit. Each pair of members is formed back to back with each other and are subsequently cut into two identical pieces after being molded. A wide variety of plastic grooved bed liners may be formed in accordance with the preferred embodiment of the present invention, having channels that are straight, curved, terminating in the center of the ribbed bed or having a Y shape, for dividing or diverging a flow of liquid from one pipe to two other pipes. The invention has been described here in detail, in order to comply with the patent statutes and to provide those skilled in the art with the information necessary to apply the novel principles and to construct and use said specialized components, as require However, it should be understood that the invention can be carried out by specifically different equipment and devices, and that various modifications can be made both in the details of the equipment, and in the operating procedures, without departing from the field of the invention itself. It is noted that, with regard to this date, the best method known by the requested, to carry out the present invention, is that which is clear from the present, discovering the invention. Having described the invention as above, the content of the following is claimed as property.

Claims (2)

1. CLAIMS A base to be used in a registration structure, is characterized because it comprises: a unitary support having a vertical cylindrical lateral wall and a lower surface, wherein the lower surface has a defined channel therebetween and the side wall has at least one opening extending through it and communicating with the channel; a fluid impermeable coating, disposed along the lower surface of the unit support and conforming to the figure thereof, including the channel, the coating including an outer edge extending from the coating and embedded in the side wall; Y a cover lined on top of the fluid impervious cover and having an outer edge attached to the side wall of the base. The base according to claim 1, characterized in that the coating has an annular wall disposed adjacent to the side wall-The base according to claim 1, characterized in that the cover has a window formed in the cover to allow the coating revision. from above the deck. The base according to claim 1, characterized in that the depth of the channel is approximately one-half the diameter of the opening of the side wall. The base according to claim 1, characterized in that the channel has an arcuate grid section. The base according to claim 1, characterized in that the liner has an integral connection that extends partially within the opening of the side wall. The base according to claim 1, characterized in that the side wall has a second opening in communication with the channel. The base according to claim 1, characterized in that the coating is formed of a molded polymer material impervious to fluids.
2. 2 A fluted bed covering to be used in a concrete base of a registration structure, characterized in that it comprises: a hollow cylinder impervious to fluids including a vertical cylindrical side wall and having a relatively flat closed bottom, the side wall having an opening extending therethrough, wherein a channel is formed in the bottom and extends through the less a connection from the inner surface of the side wall into the opening, such that the bottom portion of the opening is aligned with a bottom portion of the connection; a flange extending radially outward from an upper edge of the vertical side wall, such that both the upper and lower surface of the flange are adapted to be embedded in the base; Y at least one protrusion extending downwards, from a lower portion of the bottom portion, wherein the protrusion is adapted to be anchored to the base. The coating according to claim 9, characterized in that the depth of the channel is approximately one-half the diameter of the opening of the side wall. 11. The coating according to claim 9, characterized in that the channel has an arcuate grid section. 12. The liner according to claim 9, characterized in that the connection can be connected during the formation of a base, wherein the relatively round opening can be formed in the base, extending through the base 13. The coating according to claim 9, characterized in that the side wall has a second connection in communication with the channel. 14. The coating according to claim 9, characterized in that the coating is formed of a molded polymer material impervious to fluids. 15. A ribbed bed for use in a registration structure, characterized in that it comprises: a unitary base having a cylindrical and vertical side wall, and a bottom surface, wherein the bottom surface has a defined channel therein and the side wall has at least one opening extending through it and communicates with the channel; a liquid impermeable coating disposed along the bottom surface of the unit base and conforming to the figure thereof, including the channel, wherein the upper surface and the lower surface of an outer edge of the coating are embedded in the side wall; a flange seal adapter disposed in the opening of the side wall, wherein the periphery of the flange seal adapter is embedded in the opening of the side wall; Y a flexible annular seal member, disposed in the opening of the side wall and interposed securely between the liner and the flange seal adapter. 16. The grooved bed according to claim 15, characterized in that the outer edge of the lining is embedded in the side wall. 17. The grooved bed according to claim 16, characterized in that a periphery of the insert is embedded in the opening of the side wall. 18. The fluted bed according to claim 15, characterized in that the opening of the unitary base includes a back portion, defined between the seal and the channel, to form a connection in which a drain pipe can be erect. 19. The grooved bed according to claim 15, characterized in that the depth of the channel is approximately one-half of the diameter of the opening of the wall. 20. The grooved bed according to claim 15, characterized in that the channel has an arcuate grid section. 21. The grooved bed according to claim 15, characterized in that the liner has an integral connection that extends partially into the opening of the side wall and is positioned adjacent the annular seal. 22. The grooved bed according to claim 15, characterized in that the side wall has a second opening in communication with the channel. 23. The grooved bed according to claim 15, characterized in that both the coating and the insert are formed of molded plastic material. 24. A method for forming a base of a concrete register, having a fluted bed covering, characterized in that it comprises the steps of: (a) providing a vertical mold column having a top surface; (b) placing a liquid-impermeable fluted bed liner along the upper surface of the mold column, the liner having an annular side wall, a fluted bottom and a connection extending from the annular side wall; (c) place a dowel inside the liner connection; (d) concentrically placing an outer wall mold member, around the vertical mold column, to define a space between the mold column and the outer wall mold member, wherein the outer wall mold member extends above the upper surface of the mold column; (e) pouring the concrete into the space to fill said space, together with the periphery of the lining embedded in the concrete and the lining bottom being covered with concrete; (f) Allow sufficient time for the concrete to harden, where a portion of the concrete takes the predetermined reticular shape; and (g) removing the mold column and the outer wall mold member from a resulting concrete registration base.