METHOD FOR MAKING CONTAINERS FROM FLUOROPLASTIC-4 MATERIAL Russian patent published in 1994 - IPC

FIELD: heat-sealing of plastic materials. SUBSTANCE: before assembly of parts, method involves making a band surface of body, said band passing through the middle of said bottom. The mating surface of body is provided with recess located at the same height. The band and recess are aligned during assembly of parts. Then assembled parts are placed in a hoop. The dimensions of bottom, and those of band and recess on joined surfaces of bottom and body are found from the relations submitted in the description of the invention. EFFECT: higher efficiency.