Patent ID: 8857623

Claim:
A screen retainer for releasably mounting a screen to a screen support mounted within a basket, the screen retainer comprising: a bushing having a center and a thickness varying radially about the center and having an inner cavity; and a tensioning device having at least: a surface adapted to receive the bushing; a spring responsive to the surface; an engagement member comprising a cam disc having a cam surface, said cam disc being received by the inner cavity of the bushing, the cam disc configured to be eccentric with respect to the center of the bushing in the event the engagement member and the bushing are engaged; and at least one screen contact surface adapted to engage and place a compressive force placed on the screen when the screen is supported by the screen support and the spring is placed in compression by an exertion of force by the engagement member on the bushing in the event the engagement member and the bushing are engaged; and wherein the compressive force placed on the screen is varied based at least in part on a rotation of the bushing on the surface.