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公开(公告)号:US3587281A
公开(公告)日:1971-06-28
申请号:US3587281D
申请日:1968-06-05
申请人: LEMELSON JEROME H
发明人: LEMELSON JEROME H
IPC分类号: B21C23/08 , B21C25/00 , B21C25/08 , B29C47/00 , B29C47/12 , B29C47/36 , B30B11/26 , B21C23/20
CPC分类号: B29C47/0852 , B21C23/085 , B21C25/00 , B21C25/08 , B21C35/02 , B21C35/023 , B29C47/0023 , B29C47/0033 , B29C47/122 , B29C47/36 , B29L2023/003 , B29L2028/00 , B30B11/26
摘要: AN EXTRUSION DIE INCLUDING A MANDREL AND MEANS FOR RELATIVELY MOVING THE MANDREL AND THE DIE TO PRODUCE EXTRUSIONS OF DIFFERENT OR VARIABLE CROSS SECTIONS. IN ONE FORM, THE MANDREL IS LONGITUDINALLY MOVABLE IN THE DIE AND HAS DIFFERENT PORTIONS OF DIFFERENT SHAPE WHICH, WHEN PREDETERMINATELY POSITIONED IN THE DIE OPENING, PRODUCE EXTRUSIONS OF DIFFERENT SHAPES. IN ANOTHER FORM, THE MANDREL HEAD TAPERS OUTWARDLY AND IS LONGITUDINALLY MOVABLE WITHIN THE DIE TO PERMIT VARYING
THE WALL THICKNESS OF A TUBULAR EXTRUSION AND, IN CERTAIN INSTANCES, THE COMPLETELY STOP THE FLOW OF EXTRUSION MATERIAL SO AS TO EFFECT THE CUTOFF OF EXTRUSIONS. THE APPARATUS IS ALSO OPERATIVE TO PROVIDE EXTRUSIONS WITH OPENINGS THEREIN AND EXTRUSIONS HAVING RAISED AND RECESSED PORTIONS.-
公开(公告)号:US3352229A
公开(公告)日:1967-11-14
申请号:US48521465
申请日:1965-09-07
申请人: MORSE GEORGE W , CARROLL ROADS
发明人: MORSE GEORGE W , CARROLL ROADS
IPC分类号: B30B11/26
CPC分类号: B30B11/265 , Y10S100/906
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公开(公告)号:US3274925A
公开(公告)日:1966-09-27
申请号:US41538064
申请日:1964-12-02
申请人: INT HARVESTER CO
发明人: FISCHER RAYMOND C
IPC分类号: B30B11/26
CPC分类号: B30B11/26 , Y10S100/906
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公开(公告)号:US3264388A
公开(公告)日:1966-08-02
申请号:US17072562
申请日:1962-02-02
发明人: ROACH GEORGE H
CPC分类号: B22F3/172 , B22F3/204 , B30B11/26 , C04B35/111 , C04B35/58071 , C04B35/645 , C04B2235/3843 , C04B2235/6567 , C04B2235/77 , C04B2235/94 , C04B2235/95 , C04B2235/96 , Y10S425/054
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公开(公告)号:US3218786A
公开(公告)日:1965-11-23
申请号:US14371861
申请日:1961-10-09
申请人: DEERE & CO
发明人: JOHNSON ROY W , VAUGHAN DONALD R
IPC分类号: B30B11/26
CPC分类号: B30B11/26 , Y10S100/906 , Y10S425/23
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公开(公告)号:US3030876A
公开(公告)日:1962-04-24
申请号:US81196359
申请日:1959-05-08
申请人: SPERRY RAND CORP
发明人: SEARLES WILLIAM G
IPC分类号: B30B11/26
CPC分类号: B30B11/26 , Y10S100/906 , Y10S425/23
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公开(公告)号:US2966842A
公开(公告)日:1961-01-03
申请号:US73320858
申请日:1958-05-05
发明人: ROCHE JAMES B
CPC分类号: B30B1/26 , B30B11/265 , Y10S100/906
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公开(公告)号:US2833633A
公开(公告)日:1958-05-06
申请号:US48094055
申请日:1955-01-10
申请人: HECHT JOHN R
发明人: HECHT JOHN R
CPC分类号: B30B11/26 , C10L5/40 , Y02E50/30 , Y10S100/906
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公开(公告)号:US2775015A
公开(公告)日:1956-12-25
申请号:US28888852
申请日:1952-05-20
申请人: ERB CLARENCE F
发明人: ERB CLARENCE F
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公开(公告)号:US2622510A
公开(公告)日:1952-12-23
申请号:US2655348
申请日:1948-05-12
申请人: LETTS WALTER W
发明人: LETTS WALTER W
CPC分类号: B30B15/065 , B30B11/26 , Y10S100/906
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