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3390042
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Information
Patent Grant
3390042
References
Source
Patent Number
3,390,042
Date Filed
Not available
Date Issued
Tuesday, June 25, 1968
57 years ago
CPC
B29C66/83533 - Cooperating jaws mounted on cooperating chains and moving in a closed path
B29C65/18 - using heated tools
B29C66/43 - Joining a relatively small portion of the surface of said articles
B29C66/431 - Joining the articles to themselves
B29C66/8412 - of different length, width or height
B31B19/64 - by applying heat or pressure
B31B23/00 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents, from webs
B65B51/30 - Devices
B31B2219/142 - using tools mounted on belts or chains
B31B2219/6038 - using sealing jaws or sealing dies
B31B2219/6076 - using tools mounted on a drum
B31B2237/10 - the bags having no structural provision at the base for thickness of content
B31B2237/40 - involving folding webs longitudinally
B31B2237/406 - the bags having their openings facing transversally to the direction of movement
US Classifications
156 - Adhesive bonding and miscellaneous chemical manufacture
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