发明名称 |
FILTER FABRICS |
摘要 |
IMPROVEMENTS TO FILTER FABRICS A method of forming a barrel neck connection between filter cloths (22, 23) for application to an apertured press plate is proposed, the method involving the steps of creating an aperture (13) in a flange-forming fabric having thermoplastic properties, heating the fabric in a region extending about the said aperture (13), and displacing the fabric in such region to form an outwardly extending tube (18) for telescoping engagement with a corresponding tube formed in a second flange-forming fabric arranged in opposed disposition with respect thereto. Displacement of the fabric is ordinarily effected by a plug (15) which is brought into contact with the fabric (11) and is moved into progressive engagement with a through hole (16) in a support (12) supporting the fabric (11) the plug (15) being heated and serving to heat the flange-forming material in the relevant region thereof. The flange-forming material may itself comprise a filter cloth. (Figs. lc and 3).
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申请公布号 |
CA2081544(A1) |
申请公布日期 |
1993.05.01 |
申请号 |
CA19922081544 |
申请日期 |
1992.10.27 |
申请人 |
BENNETT, ROY;DORAN, FREDERICK |
发明人 |
BENNETT, ROY;DORAN, FREDERICK |
分类号 |
B01D25/176;(IPC1-7):B01D39/08;B01D25/00;B29C53/02 |
主分类号 |
B01D25/176 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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