DEVICE FOR VACUUM SEALING OF GLASS JARS Russian patent published in 1998 - IPC

FIELD: household product preservation; hand sealing facilities. SUBSTANCE: device has bell-shaped housing whose inner space forms vacuum chamber enclosing jar neck, pump body connected with vacuum chamber housing coaxially with the latter and communicating with vacuum chamber through air channel. Pump is made in form of cylinder with hollow rod placed inside, outer end of rod has outlet hole and handle, and inner end is provided with piston. Drain valve is installed in air channel connecting vacuum chamber with pump. Outlet valve is installed in pump. Outlet valve is combined with outlet hole of rod. Vacuum chamber is provided with spring to press lid to jar neck. Vacuum chamber housing and pump cylindrical body can be made as separate units and connected by threaded or bayonet joint. EFFECT: enlarged operating capabilities, convenience of use. 2 cl, 1 dwg