IMPROVEMENTS RELATED TO HOSE AND TIP OF SUCTION APPARATUSES

摘要

Improvements related to hose and tip of suction apparatuses of densitry, particularly related to a suction pump having flexible hose having a plastic tube (1) and a tip (2) coupled at the free extrety, the tube (1) is a cylindrical body made of plastic and flexible material, the cylindrical body also comprises annular and self engageable corrugations (1b), an annular enlarged portion (1c) is provided at the extremity of the tube (1) for connecting to the extremity (2b) of the tip (2); said tip has a cylindrical shape, having an extremity (2a) with concentric and annular corrugations (3); the internal base (4) of the portion (3) has a central hole (5); the cylindrical wall (2c) of the tip (2) has longitudinal and equidistant slots (6) positioned at the middle of the said wall (2c); the above improvements permit an industrial cost reduction in the obtention process of the tube (1) and enhance the operational performance of the tip (2).