Patent ID: 7413429

Claim:
An apparatus for extrusion of pliable clay material in alternatively selectable design shapes, said apparatus comprising: a substantially cylindrical hollow sleeve having a body portion with a first end and a second end; an elongated screw having a first end within said sleeve and a second end at least partially outside of said sleeve; a plunger associated with said first end of said screw within said sleeve and including a concave surface around its periphery and an O-ring set within said concave surface and sufficiently sized to be in simultaneous contact with said concave surface and the interior of said sleeve, said plunger includes swivel means such that rotation of said screw does not rotate said plunger against said pliable material; a screw cap associated with attached to and capping said second end of said sleeve and having a top with a central aperture through which said second end of said screw extends; a handle associated with the second end of said screw, said handle comprising a head member attached to the second end of said screw; extrusion shaping means associated with the terminus of the sleeve first end and being perforated to restrict but still allow the movement of said pliable material through said extrusion means in one of said selectable designs, said extrusion shaping means comprising: i. a retainer cap removably attached to the terminus of said sleeve first end and having a central opening; ii. a perforated extrusion disk located within the interior of said retainer cap between said retainer cap and said first end of said sleeve to partially close the opening therein, said disk restricting but still allowing the movement of said pliable material through said retainer cap; iii. said extrusion disk perforated in a desired design such that extrusion of said pliable material through said disc shapes said pliable material into a desired shape; said apparatus with the exception of said O-ring is composed of a substantially rigid material; said sleeve is externally textured to enhance gripping of said sleeve during manual rotation of said screw; said first and second end of said sleeve are externally threaded and said retainer cap and said screw cap are internally threaded to engage said first and second ends of said sleeve respectively; and wherein said swivel means comprising said plunger further includes an aperture, said screw first end passing through said plunger aperture and riveted such that said plunger cannot be removed from said screw first end but said plunger can freely rotate.