Abstract: An inflatable structure includes a top end cap, a bottom end cap, a bladder attached to the top and bottom end caps and configured to hold pressurized air, a plurality of tethers disposed within the bladder, the inflatable structure moveable between a stowed profile and a final support profile, wherein the bladder is pressurized and expanded axially and the plurality of tethers are fully extended and restrict further movement of the top end cap and the bottom end cap away from one another and limit axial expansion of the bladder, a pulley assembly mounted within the bottom end cap, wherein in the stowed support profile, the plurality of tethers are wound onto the pulley assembly, the pulley assembly adapted to allow selective extension of the tethers allowing axial expansion of the bladder, wherein, the inflatable structure is adapted to provide multiple intermediary support profiles capable of supporting compressive loading.

Abstract: A bypass pruning tool with a manual dial adjustment for varying the degree of blade and handle opening. A rotary drum dial uses a nautilus cam with a shaft cam-follower to provide adjustment of the blade and handle openings in a continuous range. A blade locking mechanism provides position closure of the blades.

Abstract: A bypass pruning tool with a manual dial adjustment for varying the degree of blade and handle opening. A rotary drum dial uses a nautilus cam with a shaft cam-follower to provide adjustment of the blade and handle openings in a continuous range. A blade locking mechanism provides position closure of the blades.