The present system is directed to a modular apparatus that may be assembled and disassembled repeatedly without the use of tools. The modular system includes connectors that may be fixed to the underside of a plank and then engaged with leg portions. The connectors further include channels to accommodate retention members of additional attachments, such as covers, guards, signage, or racks that may be added onto the modular apparatus to increase its utility. The retention members mate with the connectors to connect and securely hold the attachment and can be removed from the connectors all without the need for tools.

An irrigation system having a pipeline supported by one or more towers includes an improved truss connection system having a means for readily adjusting a crown height of the pipeline. A pair of cooperating members define a joint which selectively couples headed ends of adjacent truss rods together to form a truss rail of a truss system that supports the pipeline. A single fastener may fasten the cooperating members, a strut, and a cross-member together at the joint. A length of the truss rail may be decreased by holding the truss rods closer together. In an aspect, the headed ends of the adjacent truss rods are held closer together by inserting a shim in one of the joints. Decreasing the length of the truss rail increases the deflection of the pipeline and raises the crown height.

The present system is directed to a modular apparatus that may be assembled and disassembled repeatedly without the use of tools. The modular system includes connectors that may be fixed to the underside of a plank and then engaged with leg portions. The connectors further include channels to accommodate retention members of additional attachments, such as covers, guards, signage, or racks that may be added onto the modular apparatus to increase its utility. The retention members mate with the connectors to connect and securely hold the attachment and can be removed from the connectors all without the need for tools.

An end cap for retaining a wiping element of a wiper assembly includes a body adapted to be disposed over a portion of a wiping element of the wiper assembly and the body includes at least one tab adapted to be disposed in at least one notch of the wiping element of the wiper assembly to retain the wiping element from longitudinal movement relative thereto.

A method of assembling wall panels includes mounting a plurality of PVC fastening extrusions to a wall in a predetermined parallel, spaced apart relationship, each having a length much greater than a length of a wall panel and having two spaced apart resilient bent end securing walls extending from a base, each securing wall having a projection, each wall panel having a main wall panel and four bent end sections with recesses and corner openings, pressing a bent end section into the spacing between the securing walls to cause deformation and snapping back thereof a projection engages in a respective recess, sliding said wall panel along the parallel, spaced apart fastening extrusions to a desired position with the corner openings permitting said sliding action, and repeating the steps of pressing and sliding for additional wall panels.

The present system is directed to a modular apparatus that may be assembled and disassembled repeatedly without the use of tools. The modular system includes connectors that may be fixed to the underside of a plank and then engaged with leg portions. The connectors further include channels to accommodate retention members of additional attachments, such as covers, guards, signage, or racks that may be added onto the modular apparatus to increase its utility. The retention members mate with the connectors to connect and securely hold the attachment and can be removed from the connectors all without the need for tools.

An electrical submersible pump assembly comprising a first section and a second section with an outer housing and a drive shaft. A coupling assembly comprising a coupling, a thrust pin, and a retainer ring mechanically couples the first drive shaft to the second drive shaft. The coupling is generally cylindrical in shape with splines formed along the inner surface configured to transfer torque from the first shaft to the second shaft. The thrust pin is installed in a pin bore in the lower shaft and extends into a retainer bore in the upper shaft. The retainer ring is installed between a groove in the retainer bore and a retainer groove on the outside of the thrust pin. The thrust pin is configured to transfer tensile stress from the retainer bore in first drive shaft to the pin bore in the second drive shaft.

An irrigation system having a pipeline supported by one or more towers includes an improved truss connection system having a means for readily adjusting a crown height of the pipeline. A pair of cooperating members define a joint which selectively couples headed ends of adjacent truss rods together to form a truss rail of a truss system that supports the pipeline. A single fastener may fasten the cooperating members, a strut, and a cross-member together at the joint. A length of the truss rail may be decreased by holding the truss rods closer together. In an aspect, the headed ends of the adjacent truss rods are held closer together by inserting a shim in one of the joints. Decreasing the length of the truss rail increases the deflection of the pipeline and raises the crown height.

The present system is directed to a modular apparatus that may be assembled and disassembled repeatedly without the use of tools. The modular system includes connectors that may be fixed to the underside of a plank and then engaged with leg portions. The connectors further include channels to accommodate retention members of additional attachments, such as covers, guards, signage, or racks that may be added onto the modular apparatus to increase its utility. The retention members mate with the connectors to connect and securely hold the attachment and can be removed from the connectors all without the need for tools.

The present system is directed to a modular apparatus that may be assembled and disassembled repeatedly without the use of tools. The modular system includes connectors that may be fixed to the underside of a plank and then engaged with leg portions. The connectors further include channels to accommodate retention members of additional attachments, such as covers, guards, signage, or racks that may be added onto the modular apparatus to increase its utility. The retention members mate with the connectors to connect and securely hold the attachment and can be removed from the connectors all without the need for tools.