| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 411531000 | WASHER STRUCTURE | 51 |
| 20080286073 | HYBRID CONTOURED LOAD-SPREADING WASHER - A hybrid contoured load-spreading washer is disclosed. An illustrative embodiment of the washer includes a washer body having a composite layer and a metal layer bonded to the composite layer and a fastener opening extending through the washer body. A floor beam seat track attachment assembly and a method of transmitting a load from a seat track to a floor beam web in a seat track attachment assembly are also disclosed. | 11-20-2008 |
| 20090010736 | Washer - A centralizing washer for use in, for example, a plumbing installation in which a pipe is mounted in or connected to an article of sanitaryware creating a gap between the hole in the sanitaryware and the pipe. Projections extend axially from the washer for locating in the gap so as to centralize the washer substantially with respect to the hole in the sanitaryware. Optionally, the washer is splittable, comprising separable parts which are held together by hinge or completely separable. When the washer is in the open configuration, it may be fitted to or removed from the pipe without having to remove the pipe securing nut. To close the washer, the parts are urged together until a key projection locates in a socket. In the closed configuration, the washer substantially encloses the pipe. | 01-08-2009 |
| 20090263209 | Metal to plastic connector for toy structures - The present disclosure relates to a connector for toy structures and educational instruments, particularly for assembling plastic and metal components. The connector includes a circular base with apertures for securing to an expansive metal construction piece by use of screws or similar threaded fasteners. The connector further includes a passageway for receiving a second construction piece, such as a plastic construction piece. Pegs pass through aligned apertures in the walls of the passageway as well as apertures in the second construction pieces, thereby securing the second construction piece to the connector. | 10-22-2009 |
| 20100209214 | METHOD AND A DEVICE FOR THE MANUFACTURING OF WASHERS FOR LOCKING AND WASHER FOR LOCKING - A method for the manufacturing of circular washers for locking from blanks, a washer having a central hole, a first side comprising a pattern of radially extending teeth and a second side comprising a pattern of radially extending cams. The method is especially comprised in the steps of producing a washer blank having an annular shape; introducing the washer blank into a die assembly for forming a closed shaping space by a lower die portion, an opposing upper die portion, a central die portion and a support piece, the central die portion extending through a washer blank central hole; forming the blank to a washer by mutual movement of said lower and upper die portions; and opening the closed shaping space to extract the formed washer. The invention also relates to a device and a washer. | 08-19-2010 |
| 20100239389 | Method for coating washers for locking and coated washer for locking - Methods for manufacturing a hardened steel locking washer are disclosed, the washer having a pattern of teeth on one side and a pattern of cams on the other side, the method comprising the steps of providing the washer with an anti-corrosion coating by providing a low-alloy steel washer, hardening the low-alloy steel washing having a carbon content greater than 0.25% by weight, heating to an austenitizing temperature and subsequent quenching, and applying a basic coating comprising zinc flakes non-electrolytically onto the hardened low-alloy steel washer. | 09-23-2010 |
| 20110222990 | WASHER - A washer for a fastener system includes a washer body and a through opening in the washer body configured to allow passage of a fastener tip therethrough. A retention feature is operably connected to the washer body and configured to retain the washer to an inner surface of a setting tool barrel. A method for securing a fastener to a workpiece includes retaining a washer to an inner surface of a barrel of a setting tool and discharging a fastener from the setting tool. A tip of the fastener extends through a through opening in the washer into the workpiece. A head of the fastener is urged into contact with the washer thereby releasing the washer from the setting tool. | 09-15-2011 |
| 20120003061 | CAGED SLEEVE ASSEMBLY - A caged sleeve assembly includes a cage having a main body defining a washer chamber, at least one washer within the washer chamber, and a centering sleeve secured to the cage. The centering sleeve is configured to center the caged assembly within a through-hole of a wheel component. | 01-05-2012 |
| 20120121362 | COMPRESSION LIMITER HAVING RETENTION FEATURES - A compression limiter is disclosed that comprises an upper surface and a lower surface The compression limiter further comprises an inner surface that defines a passageway configured to accommodate a fastener and an outer surface configured to engage a structure in which the compression limiter is placed. A first retainer projects outwardly from the outer surface and includes a first retention surface that has at least a planar portion. The first retainer further includes an undercut surface disposed in inwardly from the first retention surface so as to create a corner extending in a direction with at least a component perpendicular to the longitudinal direction. A method of forming the compression limiter is also disclosed. | 05-17-2012 |
| 20130170924 | Direct Tension Indicating Washer With Centering Elements - A direct tension indicating washer includes a body having a first surface having a protuberance formed thereon; the body having a second surface having an indentation formed opposite the protuberance; a plurality of centering elements positioned at an inner diameter of the body, the centering elements extending radially inwardly from the inner diameter of the body. | 07-04-2013 |
| 20130266399 | MOUNTING STRUCTURE - A mounting structure includes a resin member that includes a mounting portion having a mounting hole, and a reinforcing member that has a insertion hole through which a fastening member is inserted for mounting the resin member on a bearing surface of a mounting target member. A mounting surface of the resin member is inclined so that the axis direction of the insertion hole of the reinforcing member coincides with a fastening direction of the fastening member to the mounting target member. The mounting hole of the mounting portion has a polygonal shape. | 10-10-2013 |
| 20130322988 | Torque-Indication Crush Washer - An apparatus comprises a metal washer having an outer circumference, a plurality of cavities formed within the washer, wherein each cavity has an opening that is flush with the outer circumference, an indicator material comprising an inspection lacquer within at least one of the cavities, and a membrane along the outer circumference sealing the inspection lacquer within the cavity. | 12-05-2013 |
| 20130330150 | Stacked Caps with Connecting Stems - A plurality of stacked fastener caps, each having a cap body. The cap body has first and second faces joined by a perimeter of the cap body, and adjacent faces of adjacent caps are joined by at least one connecting stem. The adjacent caps and connecting stems are integrally molded as a unit as by injection molding. One or both of the first and second faces may be planar. One of the first or second faces may be concave and the other may be convex. One or both of the first and second faces may have first and second thicker portions with a transverse groove interposed therebetween. | 12-12-2013 |
| 20140169913 | WASHER ARRANGEMENT FOR AN AXIAL BEARING ARRANGEMENT - The invention relates to a washer arrangement for an axial bearing arrangement, particularly in a motor vehicle gearbox, having a first sector element and at least a second sector element, which complement one another to form an annular retaining washer. The retaining washer comprises an inner circumference and an outer circumference. The washer arrangement has a locking ring, which is arranged around the outer circumference of the retaining washer. The locking ring is wound from a wire. | 06-19-2014 |
| 20140356102 | TWIST LOCK FLAT THRUST WASHER ASSEMBLY - A thrust washer assembly including a washer and a ring is provided. The washer includes a circumferential outer surface that varies radially from an axis of the washer to define a plurality of ramps. The ring includes a plurality of axial protrusions that each includes an inner radial surface that, via a relative rotation of the washer to the ring, engages a radially outer surface of the plurality of ramps to connect the washer and the ring by a friction-fit connection. | 12-04-2014 |
| 20150050103 | WASHER ARRANGEMENT FOR AN AXIAL BEARING ARRANGEMENT - The invention relates to a washer arrangement for an axial bearing arrangement, particularly in a motor vehicle gearbox, having a first sector element and at least a second sector element, which complement one another to form an annular retaining washer. The retaining washer comprises an inner circumference and an outer circumference. The washer arrangement has a locking ring, which is arranged around the outer circumference of the retaining washer. The locking ring is wound from a wire. | 02-19-2015 |
| 20150110577 | CENTRING DEVICE - A centering device for mounting a flange with a bolt passing through a opening in a mounted state, has a centering disk with a collar surrounding a disk part. The disk part is received in the opening and the collar rests on the flange. An elongated hole in the disk part has, at its respective ends, semicircles of radii R and a straight piece connecting the semicircles of overall length L | 04-23-2015 |
| 20150292547 | INJECTION-MOLDED ROOFING MEMBRANE PLATE - An injection-molded plastic roofing membrane plate includes a body and multiple cleats. The cleats extend from a bottom surface of the body. Each of the cleats has a rounded terminal end with a rounded terminal surface. The rounded terminal surfaces make surface-to-surface abutment with an underlying membrane in installation. The rounded terminal surfaces reduce wear on the underlying membrane that may otherwise occur. | 10-15-2015 |
| 20150345537 | BONDING WASHER - A bonding washer for making electrical connection between two metal pieces that are to be mechanically fastened together. The washer, to be interposed between the two metal pieces, may be constructed so as to fasten to one of the pieces before the two pieces are joined. Teeth on the washer, positioned at right angles to the plane of the washer, are forced into each of the two metal pieces when the fastener is tightened, making electrical connection between the two metal pieces. | 12-03-2015 |
| 20160025127 | BONDING LUG WASHER - A washer includes a perimeter portion, a support edge adjoining the perimeter portion and defining a first plane, and a contact portion having a generally planar contact surface. The contact surface defines a second plane parallel to and spaced from the first plane. The contact portion further includes at least two apertures extending therethrough. The washer further includes a rim portion extending between the perimeter portion and the contact portion. The rim portion surrounds the contact portion and forms an angle with the first plane of between 6 and 20 degrees. The contact portion and the rim portion are integrally formed as one-piece. | 01-28-2016 |
| 411532000 | Including release means | 2 |
| 20100239390 | Washer and method for tightening and loosening threaded connectors - A washer for tightening and loosening threaded connectors includes an outer body having a radially inner opening larger than a diameter of a bolt and a radially outer surface adapted to absorb a reaction force of the bolt; and optionally a radially inner segment, and a spacer locatable between the radially inner segment and the nut, so that when only the radially outer body is interposed between the nut and the object for regular applications the washer functions as a reaction washer, when the radially outer body and the radially inner segment are interposed together between the nut and the object for applications when even and accurate bolt elongation is necessary the washer functions as a tension washer, and when the radially outer body, the radially inner segment, and the spacer are interposed between the nut and the object for applications when a precise bolt elongation is needed and a bolt elongation must be controlled the washer functions as a high precision washer. | 09-23-2010 |
| 20130259605 | WASHER DEVICE FOR FASTENER DRIVER - A washer device for a fastener driver includes a layer having a number of washer members coupled together and located side by side, and having a hinge line formed between every two adjacent washer members for temporarily securing or coupling the washer members together, and for allowing the washer members to be selectively received or engaged with the nails or staples or fasteners that are hammered or punched out of the nose portion of the driver body member by the ejector. The washer members each include an orifice for selectively receiving or engaging with the nails or staples or fasteners, and one or more projections for separating the two superposed layers from each other. | 10-03-2013 |
| 411533000 | Including means for retaining washer to fastener | 8 |
| 20080267732 | Load-Bearing Ring for Hydraulic Fasteners - Load-bearing ring ( | 10-30-2008 |
| 20090060682 | SCREW ASSEMBLY WITH VIBRATION-ABSORBING MEMBER - A screw assembly includes a screw ( | 03-05-2009 |
| 20090074539 | Fastener Assembly Requiring Low Torque For Fastening and Unfastening - A fastener assembly and a method of fastening are provided that require a low amount of torque for fastening two objects. The fastener assembly includes a key member having an end that may be aligned with apertures in the two objects. The fastener assembly also includes one or more springs that may be compressed to allow the end to be inserted into and through the apertures. Following insertion, the key member may be rotated through the application of a low torque such that its end is no longer aligned with the apertures. The springs may then be uncompressed to cause the springs and the non-aligned end to urge the two objects together. | 03-19-2009 |
| 20100014942 | METHOD FOR THE PRODUCTION OF A CABLE LUG, AND CABLE LUG - A cable or a cable receptacle and a method of forming same are disclosed. The cable lug or cable receptacle has a flat part and a tube portion integrally formed together as one piece. The flat part has opposing surfaces which abut against each other. The flat part and the tube portion are plated with tin such that an integral bond is established between the abutting surfaces of the flat part. | 01-21-2010 |
| 20100143076 | Metalannular Gasket - A metal annular gasket comprising an annular metal base plate; a compound layer integrally laminated on both surfaces of the annular metal base plate, the compound layer being made of synthetic resin or a rubber material mixed with a fiber material; and an annular seal layer having a circumferential covering portion which covers the inner circumferential edge of the annular metal plate and the inner circumferential edge of both compound layers, the compound layer being made of synthetic resin or a rubber material. The annular seal layer is formed such that the surface of the annular seal layer is so connected to the surfaces of the compound layer as to provide smooth transition in its thickness direction. | 06-10-2010 |
| 20110014010 | WASHER WITH VULCANIZATE LAYER - Washers incorporating a vulcanized rubber deformable layer and methods of making the same. For example, a roofing washer can include an aperture for receiving a fastener, a deformable layer configured to conform to the surface of a roof, and an oppositely positioned backing layer. The backing layer can comprise a metallic material and the deformable layer can comprise a vulcanizate, for example, vulcanized ethylene propylene diene M-class (EPDM) rubber. A method of manufacturing a roofing washer can include providing a backing layer with a deformable vulcanizate layer. | 01-20-2011 |
| 20140328648 | Compression Limiter With Retention Features - A compression limiter is disclosed that comprises an upper surface and a lower surface. The compression limiter further comprises an inner surface that defines a passageway configured to accommodate a fastener and an outer surface configured to engage a structure in which the compression limiter is placed. A first retainer projects outwardly from the outer surface and includes a first retention surface that has at least a planar portion. The first retainer further includes an undercut surface disposed inwardly from the first retention surface so as to create a corner extending in a direction with at least a component perpendicular to the longitudinal direction. A method of forming the compression limiter is also disclosed. | 11-06-2014 |
| 20160252129 | WASHER AND COMBINATION WASHER AND FASTENER SYSTEM FOR BUILDING CONSTRUCTION | 09-01-2016 |
| 411534000 | Including antifriction means | 1 |
| 20100260580 | LOCKING ELEMENT AND BOLTED JOINT - A locking element for locking in a bolted joint, the locking element comprising one side comprising a pattern of radially extending cams, the main surface of which having a helix configuration, the pitch of the cams exceeding the pitch of the threads involved in the bolted joint. The locking element is especially characterized in that the locking element is a washer intended to be applied as a single locking element in the joint and in that the other, the opposite, side of the washer comprises mechanical means for providing a locking action for preventing rotation between said other side and a surface against which said other side is intended to act. The invention also relates to a bolted joint. | 10-14-2010 |
| 411535000 | Including adjustable thickness means | 5 |
| 20100135748 | FASTENERS AND SPACER RINGS THEREFOR - An axially expanding spacer ( | 06-03-2010 |
| 20110123297 | WASHER - A washer includes a wedge-shaped main body, a wedge-shaped adjusting portion moveably positioned on the main body and a flexible connecting portion interconnecting the main body and the adjusting portion. The main body defines a through hole through which the screw passes. The main body includes a bottom surface and a positioning surface angled relative to the bottom surface. The adjusting portion includes a flat contact surface and a latching surface contacting the positioning surface of the main body. The latching surface is angled relative to the contact surface. A wedge angle of the adjusting portion equals that of the main body, thus the bottom surface of the main body is substantially parallel with the contact surface of the adjusting portion. | 05-26-2011 |
| 20110318140 | HEIGHT ADJUSTMENT RING SPACER - The present invention relates to a height adjustment ring spacer, including a ring-type gasket with at least one upper ring body and one lower ring body, in which plural staircase-type ladders formed in a side of each of the upper ring bodies and a side of each of the lower ring bodies make the ladders of the upper ring body and the lower ring body individually be placed at different linking engagements to increase or decrease the height in circumferential direction; the features of the present invention are that: there are a recess formed in every ladder of the above upper ring body, and a convex body formed in every ladder of the lower ring body, thus the recess of the upper ring body and the convex body of the lower ring body relatively plug and link each other to avoid the relative movement in circumferential and radial direction therein. | 12-29-2011 |
| 20130004264 | SPACER ADJUSTABLE IN LENGTH - A crosspiece including two terminal surfaces ( | 01-03-2013 |
| 20140064881 | VARIABLE-LENGTH, ADJUSTABLE SPACER - The present invention relates to an adjustable spacer. The spacer includes an elongate member. The spacer includes a sleeve extendable around the elongate member. The elongate member is moveable relative to the sleeve. The sleeve has a locking member. The spacer includes an engaging member configured to selectively engage the locking member for inhibiting movement of the sleeve relative to the elongate member when a desired spacing of the elongate member relative to the sleeve is determined. | 03-06-2014 |
| 411537000 | Having leveling means | 3 |
| 20140234054 | Tolerance Compensation Apparatus - The invention relates to an apparatus for the compensation of tolerances between components to be screwed to one another, comprising a hollow-cylindrical base element and a hollow-cylindrical compensation element which is in threaded engagement with the base element and which can be moved from a starting position into a compensation position by rotation relative to the base element. The apparatus is characterized in that a fixing means is provided by which the compensation element can be fixed in the compensation position relative to the base element. | 08-21-2014 |
| 411538000 | Inclined planar face | 2 |
| 20120082528 | Locking wedge system - A locking wedge system for use with a load-carrying stud having a locknut (or work piece) mounted on the stud in locking relation with another work piece employs a laterally displaceable laterally tapered wedge member that is forced transversely into axial jacking relation between a pair of tapered washers so as to apply a large axial locking force against the lock nut and work piece. The tapered wedge member is forced into engagement between the pair of tapered washers by way of a transversely extending jacking screw. The jacking screw may pull or push the tapered wedge member into or out of engagement between the pair of tapered washers. A preferred wedge angle from normal to the stud is 3 degrees with an operating range from 1 degree to 10 degrees. The locking wedge system elements are selectively rotatable about the stud, for optimum operating access to the jacking screw. | 04-05-2012 |
| 20130034409 | AUTOMATIC GAP ADJUSTOR - An automatic gap adjustor is provided. The automatic gap adjustor includes an upper cammed disk, a lower cammed disk spaced apart from the upper cammed disk, and a resilient spring element therebetween. The upper cammed disk includes a first plurality of cams on an upper axial surface and a second plurality of cams on a lower axial surface. The lower cammed disk includes a third plurality of cams on an upper axial surface and a fourth plurality of cams on an undercut portion spaced apart from the upper axial surface. Opposing cams can be radially offset from each other, such that reciprocating axial movement of the upper disk relative to the lower disk can achieve a stepped rotation of the upper disk. Rotation of the upper disk can drive the automatic gap adjustor along a threaded support to eliminate a gap along a portion thereof. | 02-07-2013 |
| 411539000 | Radially positionable | 1 |
| 20080226425 | Expansion Enhancement Device - Nested articulated split rings move relatively to each other to enlarge their outer dimension for a grip on a surrounding tubular or the wellbore. The rings can be articulated to enlarge their outside dimension with relative movement that can be initiated by dimensional expansion from within the tubular or manipulation of the tubular that creates the desired relative movement. The relative movement can be locked in after it is made to secure the grip. Different shape profiles that magnify the radial outer dimension in excess of the percentage dimensional change in the underlying tubular are contemplated. | 09-18-2008 |
| 411542000 | Sealing | 6 |
| 20090074540 | Pre-formed elastomeric fastener adhesive device and method of installation - A sheet of deformable adhesive sealant material having a release material formed thereon, a plurality of pre-cut shaped members of different diameters being formed in the sheet. A user drills a bolt or screw hole into parts to be attached for the selected fastener and the surfaces to be attached are then cleaned and dried. The user then removes a selected shaped member from a release sheet and applies it to the part over the hole and pushes the fastener through a centering cut formed on the shaped member into the part to be attached. The fastener becomes coated with rubber adhesive sealant when pushed through the shaped member and, as a result, the sealant coats the fastener threads while at the same time being embedded under the fastener head. | 03-19-2009 |
| 20100014943 | SELF-SEALING FASTENING ASSEMBLY - A fastening assembly includes a housing, a press, and a sealant material located in a chamber formed between surfaces of the housing and the press. The fastening assembly may be used to install cladding to a structure. | 01-21-2010 |
| 20100021268 | INSULATING WASHERS - A washer comprises a ring and a composite structure attached to the ring. The composite structure has a slotted shape and a hole that is centrally located with respect to an axis passing through the ring. | 01-28-2010 |
| 20100068004 | SCREW AND ITS COMBINATION WITH A CONICAL SEALING DISK | 03-18-2010 |
| 20130045064 | EXPANDABLE SEALING WASHER - An expandable washer apparatus is formed from a resilient elastomeric annular body having an opening therethrough, an upper surface, a lower surface, and an external cylindrical surface. A plurality of cavities extend around the external cylindrical surface. A plurality of cavity sidewalls are associated with the plurality of cavities, the plurality of sidewalls expanding outward to increase the external cylindrical surface circumference when pressure is applied to the upper and lower surfaces. | 02-21-2013 |
| 20150023764 | SEAL, SCREW CONNECTION HAVING THE SEAL, AND USE THEREOF - A seal of a fastening element, having the fastening element and a washer, wherein the fastening element and the washer are arranged coaxially and axially adjacent to one another, wherein the washer has a sealing bead of a rubber-elastic sealing material on the outer circumference, and wherein the sealing bead contacts the fastening element underside in a sealing manner during the correct use of the seal. The fastening element has a flange on the underside, which axially faces the washer, wherein the a washer top side axially faces the flange, wherein the flange underside and the washer top side abut in a sealing manner during the correct use of the seal, wherein the flange underside and the washer top side are substantially congruent, and wherein the sealing bead abuts the outer circumferential boundary of the flange underside in a sealing manner. | 01-22-2015 |
| 411544000 | Axially resilient | 2 |
| 20150308488 | RETAINING RING RETENTION SYSTEM AND METHOD - The present invention relates to a retained member configured to prevent centrifugal force from disassociating a retaining ring provided with lugs from a groove located on a rotatable shaft when securing the retained member to the rotatable shaft and rotating with the shaft. The retained member includes a substantially annular portion and a retention lip provided with a cutout portion. The substantially annular portion defines an opening sized to receive the rotatable shaft so that the retained member is rotatable with the shaft. The cutout portion is configured to accommodate the lugs when in an installing position as the retained member is snap fit into the groove. | 10-29-2015 |
| 20150345538 | SHIELDING DEVICE WITH A SHIELDING ELEMENT AND AT LEAST ONE TEMPERATURE AND OSCILLATION-DECOUPLED FASTENING DEVICE - The invention relates to a shielding device with a shielding element and at least one fastening eyelet for fastening the shielding device to a counterpart fastening piece and for receiving a fastening element. The fastening eyelet is movably supported in a fastening opening of the shielding device. The fastening eyelet is supported by a resiliently embodied coupling device so that the fastening eyelet is resiliently supported relative to the shielding element in an axial direction and is movable in the fastening opening relative to the shielding element in at least one radial direction when acted on with friction force. To produce friction force, radially outer regions of the coupling device cooperate in a resiliently prestressed fashion with sliding zones of opposing outsides of the shielding element. | 12-03-2015 |
| 411545000 | Corrugated | 1 |
| 20180023614 | WEDGE LOCKING WASHER WITH INCREASED CORROSION RESISTANCE AND METHOD FOR ITS MANUFACTURE | 01-25-2018 |
| 411546000 | Spacer | 3 |
| 20100202856 | ISOLATOR ASSEMBLY AND METHOD OF INSTALLATION - An isolator assembly which may be used, for example, to secure a fuel rail to a cylinder head. The isolator assembly includes a bolt, washer and compressive elements. When using the isolator assembly to mount a fuel rail, preferably initially the washer and a first compressive element are retained on the bolt. A shaft end of the bolt is then inserted into a mounting boss of the fuel rail, and a second compressive element is engaged with both the fuel rail and a threaded portion of the bolt. The bolt is then threaded into the cylinder head, causing the second compressive element to come into contact with the cylinder head and compress, along with the first compressive element. When fully installed, the first compressive element isolates the fuel rail from the bolt itself (and the washer), and the second compressive element isolates the cylinder head from the fuel rail. | 08-12-2010 |
| 20160377105 | ADJUSTABLE FASTENING DEVICE AND METHOD FOR PRODUCING A PREFABRICATED SUBASSEMBLY FROM AT LEAST ONE ADJUSTABLE FASTENING DEVICE AND A COMPONENT - The invention relates to an adjustable fastening device including at least one sleeve nut having an aperture with a first internal thread and a through-bore following the same along the longitudinal axis of the fastening device ( | 12-29-2016 |
| 411547000 | Of folded sheet material | 1 |
| 20160069381 | SEGMENT FOR SPACING APPARATUS USED IN CONJUNCTION WITH ELECTRICAL BOXES - A section of a folding spacer apparatus for ensuring precise spatial increments when stacking segments of the spacer apparatus having at least two identical segments of equal thickness equal to an incremental measurement frequently utilized in the construction industry joined by a thin and pliable length of material enabling the bottom surface of a first segment to be flush with the top surface of a second segment when the segments are stacked. The segments are made without corners. In addition, the segments feature a system whereby the two segments may be snapped to one another when stacked. Specifically, first segment features at least one protrusion extending perpendicularly from its top surface, and the second segment should feature at least one complimentary cavity in its top surface, the dimensions and volume of the cavity being such that the protrusion of the first segment is snugly fit within the cavity. | 03-10-2016 |
