Abstract A spray nozzle has spray openings at one end and a flange at its other end, and a bag has folded or pleated portions of its thin plastic wall at the mouth of the bag or around a hole in said wall which has a thickness of the order of from 0.00125 to 0.005 of an inch. Said pleated portions are secured to said flange with a liquidtight connection either by a weld or by a clamping ring which may be either inside or outside the bag, grips said pleated portions between itself and said flange and by snap spring or screw action is quickly attachable to and detachable from said flange which may be either inside or outside the bag, so that the syringe can be compactly packaged, easily assembled for use and discarded after one use.
A disposable syringe comprising a spray tube having spray openings at one end and a flange at the other end, and a bag having flexible foldable and collapsible walls of a thickness of the order 0.00125 to 0.005 of an inch which form a mouth substantially larger in diameter than said flange, and a liquidtight connection between said bag and said spray tube including said flange and a clamping ring inside said flange having coacting portions including respectively interior and exterior screw threads separably connecting the flange and clamping ring together and wherein the portions of said bag around said mouth are gathered and pleated through and over and in encircling relation to said clamping ring, said flange is disposed outside the bag, and said pleated portions extend and are compressed and clamped between the threads of said clamping ring and the threads of said flange.
Claim 2
Dependent Claim
146 words
A disposable syringe comprising a spray tube having spray openings at one end and a flange at the other end, and a bag having flexible foldable and collapsible walls of a thickness of the order 0.00125 to 0.005 of an inch which form a mouth substantially larger in diameter than said flange, and a liquidtight connection between said bag and said spray tube including said flange and a clamping ring inside said flange having coacting portions including respectively interior and exterior screw threads separably connecting the flange and clamping ring together and wherein the portions of said bag around said mouth are gathered and pleated through and over and in encircling relation to said clamping ring, said flange is disposed outside the bag, and said pleated portions extend and are compressed and clamped between the threads of said clamping ring and the threads of said flange.
Claim 3
Dependent Claim
32 words
A disposable syRinge as defined in claim 1 wherein said flange has an interior shoulder and the inner end of the clamping ring clamps said pleated portions between itself and said shoulder.