Patent ID: 7694493

Claim:
A cartridge and a waste disposal device comprising: a cartridge body having an outer cylindrical wall and an inner cylindrical wall within said outer wall, said outer wall and said inner wall having a lower wall and an upper wall therebetween which together define a cavity of said cartridge body, said inner wall having an interior side opposite said outer wall, said cavity holding a length of flexible tubing stock, said upper wall and said inner wall forming a ring-shaped opening for passage of said tubing stock therethrough, said cartridge body having a plurality of openings completely through said outer wall, a collar contacting said interior side of said inner wall, said collar having a tubular wall, said tubular wall having a top portion and a bottom portion each abutting said interior side, said bottom portion having a projection that has a complementary shape to a protrusion on a top portion of said interior side, said collar having one or more slits in said top portion, wherein the length of flexible tubing stock is positioned in said collar so that said collar acts to guide waste into and support said length of flexible tubing; a rotation mechanism having a gear, said rotation mechanism mounted in the waste disposal device, wherein said plurality of openings interact with a portion of said gear of said rotation mechanism to rotate the cartridge.