Abstract: A tamper indicating band which can be fitted over the scuff band of a conventional screw cap. The band has a larger diameter upper ring with a retaining bead which snaps over the scuff band and a smaller diameter lower ring which has a bead which snaps over a container bead. Unthreading the cap from the originally packaged container fractures frangible webs joining the bead's upper and lower rings. Evidence of initial opening or tampering remains by retention of the lower ring around the container neck.

Abstract: An automatic tightening method comprises the steps of transferring a torque, generated in a driving section for a screw cap through a power transmission joint section to a container, thereby screw-tightening the screw cap in a tightening apparatus for screw-tightening the screw cap by a rotational torque from the driving section, detecting a tightening torque applied to the container, adjusting the driving section or the power transmission joint section when the tightening torque reaches a predetermined tightening torque, and holding the predetermined tightening torque for a predetermined period of time, thereby obtaining the predetermined tightening torque irrespective of the transmitted rotation torque. Also, an apparatus for carrying out the method is disclosed herein.

Abstract: Apparatus for and method of charging and hermetically sealing a small pressure vessel for confining therein a highly pressurized gas for a shelf life of several years. The vessel has a boss or neck with a very small opening extending longitudinally therethrough defining a fill connection which terminates in a small sharp edged cylindrical lip at its outer extremity into and around which a ductile metal is extruded under pressure for establishing a seal.

Abstract: In a method of closing a container having an external screw thread with a cap having an internal thread, the cap is located on the container in a pre-positioning or predetermined angular position corresponding to its final angular position and is then pressed into final closed position by axial force. The cap is located in the pre-positioning position by resilient abutments such as an internal seal, head seal, or projections on the cap which are overcome by the pressing force.

Abstract: Conventional heads for screwing bottle closures on to bottles generally are applied to the closure cap, while rotating at full speed which causes tipping of and damage to the closure cap. The invention seeks to overcome this disadvantage by a sleeve portion at the bottom of the fitting head first being applied without any torque to the closure cap, the sleeve portion being force-lockingly engaged with the rotating head only when the head is moved further downwardly through the clutch-engagement distance. When a maximum torque, which can be adjusted by means of a stressing spring, has been reached, the clutch begins to slip and the sleeve portion stops. The sleeve portion is of low mass so that after disengagement of the clutch, no additional torque due to inertia is applied to the closure cap.

Abstract: A method for applying a threaded closure to a container, said closure having sealing means in or towards the crown thereof, which method comprises applying the closure to the container by the application of a predetermined rotary torque thereto, continuing the application of the closure to the container until the desired torque applied is obtained and thereafter applying axial pressure to the closure crown towards and on to the container while simultaneously applying said torque whereby the closure pressure serves to disengage the threads to overcome at least some of the friction therebetween to permit a greater proportion of the applied torque to be applied to the sealing means within the closure.

Abstract: A one piece screw type bottle cap, a method of applying it and a method of molding it. The cap includes an internal sealing skirt having a cylindrical portion that seals against the internal surface of the bottle neck. The skirt flares inwardly and terminates at an outwardly extending collar which is bent upwardly before applying the cap to the bottle neck, and which engages the neck to form an additional seal only after the threads of the cap interengage with the threads of the neck.

Abstract: A container such as a soft-drink bottle, provided with a narrower upper neck portion threaded in one direction and a wider lower neck portion threaded in the opposite direction, is hermetically sealed with a cap divided by a frangible zone into top and bottom parts having threads complementary to those of the corresponding neck portions. The cap is placed on the container neck with a rotary screw motion which matingly interfits the upper threads while the lower threads are interengaged with a snap fit as the bottom part of the cap elastically expands.