WELL FILTER OR STRAINER, FORMED BY WINDING FILAMENTS, METHOD AND APPARATUS FOR MANUFACTURING SAME

摘要

THIS FILTER IS SHAPED BY WINDING ON A REMOVABLE CHUCK 10 OF A SINGLE BEAM OF RESIN-COATED GLASS FILAMENTS, THE CHUCK CONTAINING A BODY SHAPED BY A SERIES OF 14 SEGMENTS MOUNTED ON A CORE 12, THE BODY INCLUDING A SERIES OF HELICOIDAL RIBS INTERRUPTED 27 SO AS TO FORM A SERIES OF HELICOIDAL GROOVES 28 AND A SERIES OF LONGITUDINAL GROOVES 29 AND TWO END PARTS 16, 18 OF WHICH ONE IS SMOOTH AND THE OTHER INCLUDES A THREAD 32. THE PROCESS CONSISTS OF WINDING ALL D '' FIRST A BEAM OF FILAMENTS AROUND THE ENDS OF THE CHUCK TO FORM MALE AND FEMALE END FITTINGS OF THE FILTER THEN TO PASS IT THROUGH THE LONGITUDINAL GROOVES TO FORM LONGITUDINAL SUPPORT BARS THEN WINDING IT AGAIN WITH A TIP ON THE OTHER OF THE CHUCK ON THE ENDS AND IN THE HELICOIDAL GROOVES TO FORM THE PERFORATED BODY OF THE FILTER. AFTER HARDENING OF THE RESIN ON THE CHUCK, IT IS DISASSEMBLED AND REMOVED.