Abstract The present invention relates to a sanitary process of packing a subject into a vessel which comprises the steps of producing combined vessels each having vessels whose peripheral side walls at mouth portions we facing to each other and are continuously joined with each other, the said combined vessels having inner spaces in communication with each other only through passages within the side walls at mouth portions and each of the combined vessels being so formed that when it is separated at the junction of the peripheral side walls at mouth portions the openings thus formed by separation serve as mouths of the vessels, the walls of vessels other than the mouth portions being perfectly closed; separating the combined vessels at the junction of the peripheral side walls before charging an object into vessels to obtain separated vessels; charging a subject into the separated vessels as they are or into vessels formed by modifying the separated vessels as desired; and sealing the mouths of vessels. The vessels, until they are severed from combined vessels just before use, can be retained with great case and high reliability in sanitary, clean condition free from germs or foreign matters. In spite of these advantages, the present invention can almost eliminate waste of material throughout the entire process starting with the feeding of materials and terminating with the production of vessels ready for use.
The process of forming inverted longitudinally aligned hollow articles which comprises extruding a tube of material from an extrusion nozzle, retaining the tube of material by suction while forming the body of the receptacle, deforming and sealing the tube of material to provide a closed end portion of a first receptacle, advancing the tube of material longitudinally relative to the extrusion nozzle a distance sufficient to compensate for subsequent formation of another inverted receptacle, forming longitudinally juxtaposed parallel annular channel areas in said tube of material to provide a weakened, frangible portion lying therebetween, deforming another portion of the advanced tube of material to provide a closed end portion of a second receptacle and severing the extruded material adjacent to said end portion to form separable receptacles.
Claim 2
Dependent Claim
127 words
The process of forming inverted longitudinally aligned hollow articles which comprises extruding a tube of material from an extrusion nozzle, retaining the tube of material by suction while forming the body of the receptacle, deforming and sealing the tube of material to provide a closed end portion of a first receptacle, advancing the tube of material longitudinally relative to the extrusion nozzle a distance sufficient to compensate for subsequent formation of another inverted receptacle, forming longitudinally juxtaposed parallel annular channel areas in said tube of material to provide a weakened, frangible portion lying therebetween, deforming another portion of the advanced tube of material to provide a closed end portion of a second receptacle and severing the extruded material adjacent to said end portion to form separable receptacles.
Claim 3
Dependent Claim
67 words
The process of forming hollow articles as claimed in claim 1, including the further step of separating the hollow bodies, positioning one of the hollow bodies on a holding means, heating the said hollow body, inserting the holding means and said hollow body into a separable mold and expanding the hollow body to form it into a different configuration, and subsequently filling the hollow body with contents.