Abstract: A tractor implement support linkage has a pair of implement attachment links (11), each link being provided at its outer end with an implement attachment means (12) and being pivoted (13) at its inner end on a first arm (14). The first arm is pivoted (15) at its inner end on a support frame (16), the outer end (14a) of each first arm being moveable by a lift means (18) for raising and lowering the first arm about its inner pivot (15) on the support frame (16). Each link (11) is also connected (20) with a second arm (21) which is pivoted at its inner end (22) on the support frame (16) and is pivotally connected at its outer end (20) with the link (11). The second arm (21) rotates the link (11) about its connection (13) with the first arm (14) as the first arm is rotated about its pivot (15) on the support frame (16) by the lift means (18) thus increasing the pivotal movement of the implement attachment means (12) relative to the support frame (16) for a given movement of the lift means (18).

Abstract: Various embodiments of an electrical box are provided for installation in insulated concrete forms (“ICFs”) In at least one embodiment, the electrical box includes a container configured to receive an electrical device, and at least one anchoring member operably connected to the container In these embodiments, the anchoring member is movable between a storage position and an inserted position and the anchoring member is operable by a user without a tool Further, in these embodiments, the inserted position includes at least part of the anchoring member positioned outside the container such that the anchoring member is insertable into, for instance, a foam-based ICF Thus simple and efficient installation of electrical boxes in ICFs is provided.

Abstract: A tractor implement support linkage has a pair of implement attachment links (11), each link being provided at its outer end with an implement attachment means (12) and being pivoted (13) at its inner end on a first arm (14). The first arm is pivoted (15) at its inner end on a support frame (16), the outer end (14a) of each first arm being moveable by a lift means (18) for raising and lowering the first arm about its inner pivot (15) on the support frame (16). Each link (11) is also connected (20) with a second arm (21) which is pivoted at its inner end (22) on the support frame (16) and is pivotally connected at its outer end (20) with the link (11). The second arm (21) rotates the link (11) about its connection (13) with the first arm (14) as the first arm is rotated about its pivot (15) on the support frame (16) by the lift means (18) thus increasing the pivotal movement of the implement attachment means (12) relative to the support frame (16) for a given movement of the lift means (18).

Abstract: A connector assembly for connecting a second conduit to a first conduit is disclosed. The connector assembly comprises a rigid insert comprising a flange and a first annular portion. The first annular portion defines a bore comprising a threaded portion. The flange is configured to be positioned through an opening formed in a wall of the first conduit. The connector assembly comprises a sleeve comprising an arcuate base. A portion of the arcuate base is configured to contact an outer perimeter of the first conduit proximate to the opening. The connector assembly comprises a second annular portion extending from the arcuate base and a cylindrical portion comprising threads thereon. The threads are configured to threadably engage the threaded portion of the bore. The connector assembly comprises a threaded fastening member configured to be threadably engaged with the threads.

Abstract: Various embodiments of an electrical box are provided for installation in insulated concrete forms (‘ICFs”) In at least one embodiment, the electrical box includes a container configured to receive an electrical device, and at least one anchoring member operably connected to the container In these embodiments, the anchoring member is movable between a storage position and an inserted position and the anchoring member is operable by a user without a tool Further, in these embodiments, the inserted position includes at least part of the anchoring member positioned outside the container such that the anchoring member is insertable into, for instance, a foam-based ICF Thus simple and efficient installation of electrical boxes in ICFs is provided.

Abstract: A conduit for trenchless applications is provided. The conduit comprises a first coupler region on one end of the conduit and a second coupler region on the other end of the conduit. The first coupler region is configured to be attached to a second coupler region of another conduit, while the second coupler region is configured to be attached to a first coupler region of another conduit. The first and second coupler regions can engage a sealing member and, optionally, a locking member.

Abstract: A bell end in an extruded pipe having a transition phase of greater than 35° is formed by thermoforming. The transition phase acts as a pipe stop system to prevent over insertion of another pipe into the bell end. The process includes heating the first end of the pipe, pushing the pipe onto a mandrel having a sloped portion with a forming angle of more than 35° and applying pressure to conform the pipe to the shape of the working surface of the mandrel. The heating step includes heating an end of the pipe where the transition phase will be formed in a preliminary pre-heater, while the pipe is still warm from the extrusion process, and then immediately thereafter in a heating box. Preferably, the end of the pipe, and in particular the portion of the pipe corresponding to the longitudinal position where the transition phase will be formed, will be heated to an average temperature of at least 100° F. and more preferably 200° F. and still more preferably at 300° F.