Abstract: A glass tube and thermoplastic resin finger-grip and nose-forming sleeve syringe body assembly in which, the finger-grip sleeve and the nose-forming sleeve are each cam-stretched onto and frictionally retained on respective opposite ends of a glass tube, which is a section of die-formed glass tubing. Increase in latitude of operable interference fit and stretch is effected by assembling the finger-grip and nose-forming sleeves onto the glass tube while the sleeves are in a heated condition.

Abstract: A liquid dispenser in the form of a syringe having a barrel, with a piston valve/seal slidable in the barrel bore and having a preformed liquid passage hole extending through a slidable elastic main body thereof in which an elastic hour-glass shaped plug seal is removably disposed. A rearwardly extending post fixed on the forward end wall of the barrel bore effects rearward knockout removal of the plug seal from the preformed hole as a function of forward sliding movement of the piston valve/seal in the bore, and a liquid flow passage is formed in the post to enable passage of liquid therepast. The piston valve/seal main body has a plug-containment chamber which is larger than the plug and enables by-pass liquid flow past the plug after dislodgment of the plug into this chamber.

Abstract: A glass tube and thermoplastic resin finger-grip sleeve assembly in which the finger-grip sleeve is cam-stretched onto and frictionally retained on a glass tube, which is a section of die-formed glass tubing. Increase in latitude of operable interference fit and stretch is effected by assembling the finger-grip sleeve in a heated condition.

Abstract: A prefillable or prefilled syringe having a liquid-containment glass tube body section with thermoplastic resin finger-grip sleeve and noseforming sleeve fit thereon in an interference fit, and with the ends of the glass tube being sealed after filling and preferably prior to assembly of one or both the finger-grip sleeve and the nose-forming sleeve, and a method of assembly thereof, the finger-grip sleeve and the nose-forming sleeve being cam-stretched onto and frictionally retained on and along a glass tube, in the form of a section of die-formed glass tubing. Increase in latitude of operable interference fit and stretch is effected by assembling the finger-grip sleeve and the noseforming sleeve in a heated condition, without requiring heating of the glass tube and its prefilled contents.