Accession Number : AD0163782
Title : Heat Sealer.
Descriptive Note : Patent,
Corporate Author : OFFICE OF THE SECRETARY OF THE ARMY WASHINGTON D C
Personal Author(s) : Schulz,Gerald L. ; Mansur,Raymond T.
Report Date : 27 JUN 1972
Pagination or Media Count : 5
Abstract : The patent relates to a device whereby heat sealing opposed thermoplastic surfaces of open ended pouches, whose sealing surfaces are likely to be contaminated with liquids or fatty substances is accomplished by forcing a transversely radiused, heated sealing bar against the opposed unsealed sheets of the pouch which are supported by a resilient anvil, thereby squeezing the contaminants out of the sealing area before the sheets fuse together and in those cases where solid particulate contaminants are found in the sealing area utilizing steam flushing to clean the sealing surfaces prior to sealing.
Descriptors : (*HEATERS, *PATENTS), (*SEALING COMPOUNDS, *PLASTIC SEALS), CONTAINERS, PLASTICS, CONTAMINATION, FOOD, PACKAGING
Subject Categories : Plastics
Distribution Statement : APPROVED FOR PUBLIC RELEASE