FLASK Russian patent published in 1999 - IPC

FIELD: dental prosthesis equipment used in production of stomatologic prosthesis. SUBSTANCE: flask is furnished with a holder having a spatial adjusting recess corresponding to the outer shape both of the base and the upper part of the flask in which they are installed before ejecting of gypsum from them. Squeezing-out plunger, whose external perimeter of the ejecting part precisely repeats the internal parameter of the working surfaces of the base and flask upper part. EFFECT: enhanced quality of flask cleaning at ejection of gypsum moulds from flasks and enhanced labour productivity. 3 dwg