Quick release adjustable clamp for retaining insert in cylindrical container

Claim 1

Container means comprising in combination, a substantially cylindrical container having an open end for receiving contents disposed at variable heights therein, a removable insert fitting inside said open end to rest upon said contents of the container disposed at variable heights therein, and adjustable quick release clamping means for holding said insert in place with predetermined force against said contents, said clamping means comprising a set of pivot frame members affixed to said container around its rim, a single pivoting arm member registering with each frame member at a pivot axis to pivot thereabout from a first disengaged position outside said open end to a second engaged position extending over said open end, an adjustable clamp positioned in said pivoting member to extend over said insert in the second position to bear into forcible contact with said insert with a force determined by the adjustment of said clamp, and quick release locking means for holding the pivoting member in said second position constituting a manually removable pin registering snugly through an aperture through both said pivot frame and said pivoting member and having a manually operable structure thereon to facilitate entry and removal from said apertures thereby serving as a quickly removable retainer for holding said pivoting member in said second position.