ARTICLE CLEANING APPARATUS Russian patent published in 1995 - IPC

FIELD: cleaning of articles. SUBSTANCE: apparatus has hermetically sealed working chamber for washing liquid, vacuum pump, valve for periodical creation of increased pressure in working chamber, locking disk and pneumatic drive for moving locking disk. Pneumatic drive has stem and spring-loaded driving member of stem. Apparatus is further provided with sleeve with central hole in its bottom and auxiliary spring. Sleeve is loosely mounted in central hole on stem in the vicinity of stem end and is rigidly connected by its free end with locking disk, which is mounted for axial motion relative to free end of stem. Auxiliary spring is mounted on stem within sleeve for biasing locking disk to free end of stem. Pneumatic drive cavity is communicated with valve excessive pressure body cavity through control manifold and additional pipeline with return valve. EFFECT: high quality of cleaning. 2 cl, 2 dwg