RESERVOIR FOR BINDING AND PASTY MATERIALS Russian patent published in 1997 - IPC

FIELD: materials storage and transportation. SUBSTANCE: reservoir 1 for lubricant has hermetic closing cap 31 at one end 50 of cylindrical tubular housing 2. Cap has bottom 32 with ring inner collar 36 projecting from bottom over its periphery and adjoining inner side of indicated end of tubular housing. Cap serves two purposes: along with hermetically closing function it acts as piston member to deliver lubricant to lubricating point by means of rod-pusher of lubricating gun now in use. For this purpose limiting edge of inner collar 36 pointed outwards the bottom connected with member-bridge 39 arranged in radial space and changing into outer collar 40 concentric with inner collar and embracing over perimeter the indicated end of tubular housing together with inner collar and member-bridge. Cap has groove-like ring weakening member 38 providing separation of bottom 32 when changing for operation as piston member. According to invention, weakening member 38 is provided in above indicated member-bridge 39 and sides of collars and tubular housing pointed to each other are provided with ring fixing and sealing grooves and beads engaging with each other for temporary positioning and fixing or sealing of cap 31 relative to tubular housing. Other end of tubular housing is hermetically closed by special cap provided with end piece 46 and engaging with special shape end of tubular housing. EFFECT: improved sealing. 7 cl, 26 dwg