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公开(公告)号:US2784991A
公开(公告)日:1957-03-12
申请号:US38212453
申请日:1953-09-24
Applicant: DRESSER IND
Inventor: NEWELL FREDERICK T , RISLEY ROGER E
CPC classification number: F16L21/045 , F16L21/06
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公开(公告)号:US2669465A
公开(公告)日:1954-02-16
申请号:US17782050
申请日:1950-08-05
Applicant: DRESSER IND
Inventor: NEWELL FREDERICK T
CPC classification number: F16L25/023 , H02G3/06
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3.
公开(公告)号:US2755111A
公开(公告)日:1956-07-17
申请号:US36166253
申请日:1953-06-15
Applicant: DRESSER IND
Inventor: NEWELL FREDERICK T , RISLEY ROGER E
IPC: F16L19/08
CPC classification number: F16L19/086 , F16L19/075
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公开(公告)号:US2415753A
公开(公告)日:1947-02-11
申请号:US55102144
申请日:1944-08-24
Applicant: DRESSER IND
Inventor: NEWELL FREDERICK T
IPC: F16L55/178
CPC classification number: F16L55/178 , Y10T292/205 , Y10T292/221
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公开(公告)号:US2377510A
公开(公告)日:1945-06-05
申请号:US45974342
申请日:1942-09-26
Applicant: DRESSER IND
Inventor: NEWELL FREDERICK T
IPC: F16L17/04
CPC classification number: F16L17/04 , Y10T403/597
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公开(公告)号:US3525499A
公开(公告)日:1970-08-25
申请号:US3525499D
申请日:1967-04-17
Applicant: DRESSER IND
Inventor: GEISELMAN DONALD L , NEWELL FREDERICK T
IPC: F16K1/226
CPC classification number: F16K1/226
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公开(公告)号:US3288495A
公开(公告)日:1966-11-29
申请号:US27526563
申请日:1963-04-24
Applicant: DRESSER IND
Inventor: NEWELL FREDERICK T , HENRY SLIVINSKI
IPC: F16L21/04
CPC classification number: F16L21/04 , F16L25/025
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公开(公告)号:US3106069A
公开(公告)日:1963-10-08
申请号:US74110758
申请日:1958-06-10
Applicant: DRESSER IND
Inventor: RISLEY ROGER E , NEWELL FREDERICK T
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公开(公告)号:US2922664A
公开(公告)日:1960-01-26
申请号:US54751455
申请日:1955-11-17
Applicant: DRESSER IND
Inventor: RISLEY ROGER E , NEWELL FREDERICK T
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公开(公告)号:US3593400A
公开(公告)日:1971-07-20
申请号:US3593400D
申请日:1969-08-18
Applicant: DRESSER IND
Inventor: GEISELMAN DONALD L , NEWELL FREDERICK T
CPC classification number: F16K27/0218 , B22D19/00 , F16K1/2263 , Y10T29/49409 , Y10T29/49417 , Y10T29/49989
Abstract: A butterfly valve in which the seat is formed of a stainless steel ring fused to the valve body by casting the body about the prepositioned ring prior to the finished machining thereof.
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