Abstract: Fasteners and related systems according to the invention include a collet body having a first part of a two part anti-rotation arrangement and a cylinder body having a second part of the two part anti-rotation arrangement wherein the collet body and the cylinder body are mateably axially translatable with respect to each other, and have the same or similar outer diameter in some embodiments or not in others. A threaded member rotationally engages the collet body and compressively contacts the cylinder body during operation of the fastener to creating a clamping effect. Rotational interference between the first and second parts of the anti-rotation arrangement preferably occurs at sectional face portions of at least the collet body. Resistance to induced rotation of the cylinder body relative to a work piece rotation of the threaded member is preferably provided by a tool engaging a tool interface present on the cylinder body.

Abstract: An anchor bolt (40) according to the present invention has a taper member (7) threadably engaged with the rod (4), and three or five abutment parts (12) fitted over the taper member (7). The taper member (7) has a cross section in a form of an equilateral triangle or pentagon, and three or five inclined surfaces (10) at respective sides of the triangle or pentagon. The inclined surfaces (10) are inclined closer to a central axis of the taper member (7) toward a base end of the anchor bolt (40). Each abutment part (12) has an inner surface (11) which is inclined closer to the central axis of the taper member (7) toward the base end and which abuts the inclined surface (10) of the taper member (7).

Abstract: A window system for installation in a structure is provided. The window system includes a front side that faces away from the structure and a back side that faces into the structure when the window system is installed in a structure. The window system further includes at least one window pane having a front side that faces away from the structure and a back side that faces into the structure when the window system is installed in a structure; at least one sash that surrounds the at least one window pane, wherein the sash has a front side that faces away from the structure and a back side that faces into the structure when the window system is installed in a structure; at least one window frame comprising at least one head, sill, and jamb; and at least one mounting base integral to the window.

Abstract: A carrier for engaging a panel and a method of making a carrier for engaging a panel are disclosed. The carrier generally includes a base portion, an attachment member disposed on the base portion which is operable to engage a panel, and a springbar disposed on the base portion. The method generally includes forming a base portion, forming an attachment member, and forming a springbar on the base portion. The attachment member cooperates with the base portion to define a maximum panel thickness, and the springbar engages panels having a thickness less than or equal to the maximum panel thickness to provide tension between the base portion and a panel.

Abstract: A clip which is easily removed from an object to be fixed is provided. The clip includes: two parts including a first member 1 and a second member 2, the first member having a head portion 4 and a shaft portion 5, and the second member having a flange portion 11 and a leg portion 12, wherein an opening 13 is formed in the flange portion of the second member, and the leg portion of the second member is split into two split leg portions 16 to form a gap 17, which communicates with the opening and into which the shaft portion of the first member is inserted between the split leg portions 16, and wherein elastic blades 18 projecting radially are provided in multiple stages along a vertical direction on outer peripheral surfaces of the split leg portions.

Abstract: A part mounting mechanism includes a boss, and a resin clip adapted to be assembled to the boss. The resin clip includes holding pieces, elastic engagement pieces, and a connecting portion. The part mounting mechanism also includes projecting portions formed on facing inner surfaces of the connecting portion at predetermined intervals in a staggered fashion along a direction in which the boss is inserted. When the boss is inserted into the connecting portion, the projecting portions bite into the distal end portion of the boss.

Abstract: A fastener comprises a pin and a bushing having a hollow shank that is inserted into holes in a plurality of members being attached. A pin shank is inserted into the bushing shank to effect a widened-diameter coupling condition in which the diameter of the bushing shank is widened, and the members being attached are coupled between the diameter-widened bushing shank and a bushing flange. On the bushing shank are pawls for maintaining a non-widened-diameter coupling condition in which the pin and the bushing are coupled with the pin shank partially inserted into the bushing shank, and the diameter of the bushing shank is not widened. On the pin shank there is a groove for engaging the pawls, which normally extend out beyond the diameter of the attachment holes, but can bend inward. The groove has a depth that will accept the pawls when they are bent inward.

Abstract: An improved expansion assembly for a mine roof bolt for use in a nominal one inch diameter bore hole with a nominal 5/8" diameter roof bolt is provided. The expansion assembly has a tapered plug with four tapered surfaces, an expansion shell that has four leaves extending axially upwardly from a support ring and into contact with the four tapered surfaces on the tapered plug, and a threaded support washer to support the expansion shell on the threaded end of a mine roof bolt. The tapered plug has a threaded bore therethrough for threading onto the mine roof bolt. The tapered plug tapered surfaces have an angle of taper of at least 6.5.degree. to the axis of the mine roof bolt. The expansion leaves each have seven serrations formed on the surface such that the serrations are formed by the intersection of a planar surface perpendicular to the axis of the mine roof bolt and a frusto-conical surface. The frusto-conical surface is at an angle of 72.3.degree. to the planar surface.

Abstract: An improved expansion assembly for a mine roof bolt for use in a nominal one inch diameter bore hole with a nominal 5/8" diameter roof bolt is provided. The expansion assembly has a tapered plug with four tapered surfaces, an expansion shell that has four leaves extending axially upwardly from a support ring and into contact with the four tapered surfaces on the tapered plug, and a threaded support washer to support the expansion shell on the threaded end of a mine roof bolt. The tapered plug has a threaded bore therethrough for threading onto the mine roof bolt. The tapered plug tapered surfaces have an angle of taper of at least 6.5.degree. to the axis of the mine roof bolt. The expansion leaves each have seven serrations formed on the surface such that the serrations are formed by the intersection of a planar surface perpendicular to the axis of the mine roof bolt and a frusto-conical surface. The frusto-conical surface is at an angle of 72.3.degree. to the planar surface.

Abstract: A mine roof bolt expansion anchor utilizes a plurality of transversely bent elongated leaves which are compressed within a bail by the rotation of the roof bolt. The compression results in movement of the leaves toward a flattened position whereby the outer edges of the leaves engage the bore hole walls to anchor the bolt. Downwardly extending flanges on each end of the leaves increase the bearing surface which engages the bore hole wall, while spacers near the center of the leaves act as a spine to evenly distribute the compression to all the leaves so that they all engage the bore hole wall simultaneously and with the same pressure.

Abstract: A combination expansion shell and resin secured mine roof anchor assembly comprising an elongated bolt which carries rebar and an expansion shell. The assembly is inserted into a mine roof opening, in the back end of which is positioned a resin and catalyst cartridge. The cartridge is ruptured by the assembly allowing the resin and catalyst to gravitate downwardly, where they are mixed together by the rebar upon rotation of the bolt. The bolt is rotated a predetermined number of revolutions to obtain proper mixing of the resin and catalyst preparatory to setting, after which the continued rotation of the bolt in the same direction effects movement of the expansion shell into gripping engagement with the mine roof.

Abstract: A combination expansion shell and resin secured anchor assembly for installation in a mine roof opening including an elongated bolt having rebar attached to the upper end thereof and an expansion shell below the rebar. The assembly is inserted into a mine roof opening in the back end of which is positioned a resin and catalyst cartridge, the cartridge being ruptered by the rebar, allowing the resin and catalyst to gravitate downwardly between the opening wall and rebar, where they are mixed upon rotation of the bolt and rebar. The bolt is rotated a predetermined number of revolutions to obtain optimum mixing of the resin and catalyst, after which continued rotation of the bolt in the same direction causes outward movement of the expansion shell into gripping engagement with the mine roof.

Abstract: A mine roof mechanical anchor having the usual expansion shell and tapered nut is fitted with a bail having legs secured to the shell and a medial portion extending over and contacting the nut, maintaining the latter in assembled relation with the shell, and having an opening aligned with and slightly smaller than the threaded opening in the nut. Bail extension structure, having a pair of legs attached to the legs of the first bail and a medial portion aligned with and spaced from that of the first bail, provides a means of breaking the casing and mixing the contents of a standard resin cartridge inserted in a bore hole in a mine roof ahead of the anchor and threaded bolt or rebar on which it is supported. The anchor and associated structure are rotated together with the roof bolt or rebar due to interference thereof with the smaller opening in the medial portion of the bail.

Abstract: A combination expansion shell and resin secured anchor assembly for installation in a mine roof opening including an elongated bolt having rebar attached to the upper end thereof and an expansion shell below the rebar. The assembly is inserted into a mine roof opening in the back end of which is positioned a resin and catalyst cartridge, the cartridge being ruptured by the rebar, allowing the resin and catalyst to gravitate downwardly between the opening wall and rebar, where they are mixed upon rotation of the bolt and rebar. The bolt is rotated a predetermined number of revolutions to obtain optimum mixing of the resin and catalyst, after which continued rotation of the bolt in the same direction causes outward movement of the expansion shell into ripping engagement with the mine roof.

Abstract: An expansion screw for being secured in a cavity is threaded at the outer end of its screw portion for co-action with a nut (2) and is provided with an expandable sleeve (10) about its opposite end. The sleeve has an inner profile coacting with an outer profile of the expansion screw for expanding the sleeve when the screw (1) is withdrawn from the sleeve. The outer profile of the screw portion (1) is formed by a plurality of coaxial cones (3-6) with intermediate cylindrical junction portions (7-10), all cones and junction portions being integral with the rest of the screw portion. The inner profile of the sleeve (10) is formed by thickened regions (12), projecting inwards from the inner surface of the sleeve and corresponding to the cylindrical junction portions, and by thinner regions (13) of the sleeve corresponding to the coaxial cones.

Abstract: A mine roof anchor assembly comprising an elongated bolt, one end of which is threadedly engaged with an expansion anchor. The expansion anchor includes a cone nut threaded on the bolt which moves axially through a shell for expanding the latter into gripping engagement with the mine roof. A bail member of inverted L-shape is connected to, and extends upwardly from, the expansion shell, a portion of the bail member overlying the cone nut to limit the relative longitudinal movement of the bolt when it is rotated in the cone nut. That portion of the bail member overlying the bolt is deflected by the latter to urge teeth mounted on the bail member portion into impinging engagement with the mine roof.

Abstract: An expansion anchor including an expansible shell and tapered nut for insertion into a drill hole in a rock formation and adapted for outward expansion of the shell into gripping engagement with the drill hole wall to support a rock bolt and bearing plate engaging the rock formation surface around the hole. The invention resides in a novel arrangement of dimensional and structural relationships of the expansion shell and tapered nut which allow the same anchor to be used in drill holes over a range of diameters approximately three times that of conventional prior art anchors of the same general type.

Abstract: An expansion anchor for a mine roof support bolt having a one-piece shell, a tapered nut and a strap for maintaining the shell and nut in assembled relation. The shell includes a circular collar having four fingers extending therefrom in a generally cylindrical configuration with an open slot between each pair of adjacent fingers. A pair of solid elements formed integrally with the rest of the shell extend between pair of adjacent fingers to bridge the slots on opposite sides of the shell. The strap extends over the top of the nut, through the slots and has bent-over end portions which are engaged under the solid elements bridging the slots.