Abstract: An adjustable coupling system is provided for efficiently and removably coupling objects such as platforms together in a linear or diagonal orientation. The adjustable coupling system generally includes a second receiver on a first platform and a first connector on a second platform. The first connector is adapted to be removably inserted within the second receiver such that the first connector is prevented from vertical movement with respect to the first platform. A first locking member is positioned near the first receiver on the second platform. The first locking member is adapted to selectively engage with the second connector when the second connector is positioned within the first receiver to pivotally connect the first platform and the second platform. A work platform or catwalk can be formed with linear sections, diagonal sections, and/or a mix thereof for a wide range of uses.

Abstract: A two-way drywall lift overload protection system for reliably preventing the application of an overloading input force or an overloading weight force from an elevated load. The two-way drywall lift overload protection system generally includes a telescoping drywall lifter to lift and lower a load, wherein said telescoping drywall lifter includes a plurality of legs, a lower lifting member, a plurality of telescoping lifting members extending upwardly from said lower lifting member and an upper support, a winch attached to said telescoping drywall lifter, a brake unit connected to said winch, a slip clutch mechanically connected to said telescoping drywall lifter to selectively extend and retract said lower lifting member and said plurality of telescoping lifting members, and a main elongated member connected between said winch and said slip clutch.

Abstract: The invention comprises a collapsible panel carrying stick having a dual pair of elongated stick sections adapted to be extended into end to end relation with one another. The lowermost stick section has a projecting flange for insertion beneath a panel such as a dry wall panel. The uppermost stick section has a handle for carrying the stick with the panel thereon. The upper two stick sections are slidably retractable toward one another and the lower two sections are slidably retractable toward one another. The middle two stick sections are pivotally connected to one another to pivot toward one another with the sections retracted to collapse the stick sections into a smaller compact position for easier carrying.