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Patent Searching and Data


Title:
METHOD OF PRODUCING EXTRACTION BAG
Document Type and Number:
WIPO Patent Application WO/2011/061846
Kind Code:
A1
Abstract:
A method of producing an extraction bag having a tetrahedral shape comprises a step for forming a first lateral seal and a second lateral seal alternately by welding and fusion-cutting a sheet (5) for an extraction bag shaped into a tubular body alternately in the mutually intersecting directions on the plan view, and a step for filling the interior of the tubular body with the content when formation of the first lateral seal and formation of the second lateral seal are repeated alternately. As a lateral sealing device which forms the first and second lateral seals, one welding/fusion-cutting device, which turns about the axis of the tubular body of a sheet for an extraction bag is used when each seal is formed, is used, and the turning time thereof and the time for formation of the lateral seal are overlapped.

Inventors:
MIYAHARA FUMIO (JP)
TSUJI YOSHIYUKI (JP)
SUNADA MASAHIRO (JP)
TAKEMOTO TOMOHIRO (JP)
SHINAGAWA YOSHIYUKI (JP)
Application Number:
PCT/JP2009/069681
Publication Date:
May 26, 2011
Filing Date:
November 20, 2009
Export Citation:
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Assignee:
OHKI CO LTD (JP)
TSUBAKIMOTO KOGYO CO LTD (JP)
TOYAMA FAB CORP (JP)
MIYAHARA FUMIO (JP)
TSUJI YOSHIYUKI (JP)
SUNADA MASAHIRO (JP)
TAKEMOTO TOMOHIRO (JP)
SHINAGAWA YOSHIYUKI (JP)
International Classes:
B65B29/02; B65B9/20
Foreign References:
JPH01308707A1989-12-13
JP2008213852A2008-09-18
JPH05193619A1993-08-03
JPH03275409A1991-12-06
Attorney, Agent or Firm:
TAJIME & TAJIME (JP)
Patent business corporation Tajime international patent firm (JP)
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