A closure for a pressurized container for use as a shooting target

Abstract

A closure for a plastic drinks bottle or the like to form a shooting target. The closure includes a cap adapted to be screwed onto the neck of the bottle and a valve unit arranged to extend through the top of the cap. The valve unit includes a valve to retain air under pressure within the bottle and a radially extending flange that sits against the underside of the top of the cap to retain the valve unit to the cap.

1 - 21 . (canceled) 
     
     
         22 . A closure for a bottle for use as a shooting target; the closure comprising:
 a cap having an opening suitable for a neck of the bottle to be secured therein;   an end wall defining an aperture therethrough; and   a valve unit adapted for connection to a supply of gas to pressurise the bottle when the closure is secured to the bottle, a valve to inhibit release of the gas from the bottle once the bottle is pressurised, and a radially extending projection; and wherein the valve unit is arranged to extend through the aperture in the end wall of the cap such that the valve sits on a first side of the end wall, and the radially extending projection sits on a second side of the end wall within the opening of the cap to retain the valve unit to the cap.   
     
     
         23 . A closure according to  claim 22  wherein the radially extending projection forms a seal against the end wall. 
     
     
         24 . A closure according to  claim 22  wherein the radially extending projection is comprised from a resiliently flexible material. 
     
     
         25 . A closure according to  claim 22  wherein the radially extending projection comprises a substantially continuously circumferential flange that sits within the opening of the cap to retain the valve unit to the cap. 
     
     
         26 . A closure according to  claim 22  wherein the valve sits on the first side of the end wall such that during pressurisation of the bottle, gas flow through the valve unit, downstream of the valve, passes through the aperture in the end wall of the cap and into the bottle. 
     
     
         27 . A closure according  claim 22  wherein the valve comprises a valve member that sits and is moveable within a path for gas flow provided by valve unit to regulate flow of gas through the valve unit. 
     
     
         28 . A closure according to  claim 22  wherein an outlet of the valve unit sits within the aperture. 
     
     
         29 . A closure according to  claim 22  further comprising a catch that allows relatively free passage of the valve unit through the aperture in a first direction but inhibits movement of the valve unit through the aperture in a second direction. 
     
     
         30 . A closure according to  claim 29  wherein the catch comprises a collar. 
     
     
         31 . A closure according to  claim 22  wherein an outer wall of the cap defines a mounting projection for securing the shooting target to a mount. 
     
     
         32 . A closure according to  claim 31  wherein the mount comprises two spaced apart radial projections. 
     
     
         33 . A closure according to  claim 22  wherein the end wall comprises a strengthening annulus around the periphery of the aperture. 
     
     
         34 . A closure according to  claim 22  wherein the cap is arranged to be screw mounted over a neck of the bottle. 
     
     
         35 . A closure according to  claim 22  wherein the cap is comprised from a single integral piece of synthetic plastics material. 
     
     
         36 . A shooting target comprising a pressurised synthetic plastics bottle upon which is mounted a closure according to  claim 22 . 
     
     
         37 . A closure for a bottle for use as a shooting target; the closure comprising:
 a cap having an opening suitable for a neck of the bottle to be secured therein; and an end wall defining an aperture therethrough; and   a valve unit adapted for connection to a supply of gas to pressurise the bottle when the closure is secured to the bottle, and comprising a valve to inhibit release of the gas from the bottle once the bottle is pressurise; the valve having a valve member that sits and is moveable within a path for gas flow provided by valve unit to regulate flow of gas through the valve unit; and the valve unit further comprising a radially extending projection that sits within the opening of the cap to retain the valve unit to the cap.   
     
     
         38 . A closure according to  claim 37  wherein the valve unit extends through the aperture. 
     
     
         39 . A closure according to  claim 37  wherein the radially extending projection forms a seal against end wall. 
     
     
         40 . A closure according to  claim 39  wherein the radially extending projection is comprised from a resiliently flexible material. 
     
     
         41 . A closure according to  claim 37  comprising a substantially continuously circumferential flange that sits within the opening of the cap to retain the valve element to the cap.