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公开(公告)号:US3158214A
公开(公告)日:1964-11-24
申请号:US17985762
申请日:1962-03-15
Applicant: HUGHES TOOL CO
Inventor: WISLER ALLEN E , SCALES STANLEY R
IPC: E21B10/50
CPC classification number: E21B10/50
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公开(公告)号:US2985492A
公开(公告)日:1961-05-23
申请号:US75924058
申请日:1958-09-05
Applicant: HUGHES TOOL CO
Inventor: BONNEY JAMES C , CHANDLER DALE W , WISLER ALLEN E
IPC: E21B17/10
CPC classification number: E21B17/1085
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公开(公告)号:US3260579A
公开(公告)日:1966-07-12
申请号:US17315362
申请日:1962-02-14
Applicant: HUGHES TOOL CO
Inventor: SCALES STANLEY R , WISLER ALLEN E
IPC: E21B10/50
CPC classification number: E21B10/50 , Y10S428/932 , Y10T428/1209 , Y10T428/12931
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公开(公告)号:US2660405A
公开(公告)日:1953-11-24
申请号:US76041447
申请日:1947-07-11
Applicant: HUGHES TOOL CO
Inventor: SCOTT FLOYD L , WISLER ALLEN E , WOODS HENRY B
IPC: E21B10/50
CPC classification number: E21B10/50
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公开(公告)号:US2179836A
公开(公告)日:1939-11-14
申请号:US16589437
申请日:1937-09-27
Applicant: HUGHES TOOL CO
Inventor: WISLER ALLEN E , WOODS HENRY B
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公开(公告)号:ATA70378A
公开(公告)日:1979-12-15
申请号:AT70378
申请日:1978-02-02
Applicant: HUGHES TOOL CO
Inventor: WISLER ALLEN E , LANE LEO D
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公开(公告)号:CA754424A
公开(公告)日:1967-03-14
申请号:CA754424D
Applicant: HUGHES TOOL CO
Inventor: WISLER ALLEN E , SCALES STANLEY R
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公开(公告)号:CA1114691A
公开(公告)日:1981-12-22
申请号:CA296089
申请日:1978-01-31
Applicant: HUGHES TOOL CO
Inventor: WISLER ALLEN E , LANE LEO D
Abstract: A tool joint hardfacing containing sintered tungsten carbide granules embedded in an alloy steel matrix, with the surface substantially free of protruding granules to decrease casing wear during well drilling. The hardfacing is applied in a single application by rotating the drill pipe, providing an arc between a consummable steel wire and the pipe to create a weld puddle, and reciprocating the wire paralled to the pipe axis to create a band. Sintered tungsten carbide granules are gravity fed from an orifice directly into the arc and precipitate toward the bottom of the matrix to provide a smooth surface. The bottom of the matrix appears to be harder than the top.
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公开(公告)号:FR2388984A1
公开(公告)日:1978-11-24
申请号:FR7803927
申请日:1978-02-08
Applicant: HUGHES TOOL CO
Inventor: WISLER ALLEN E , LANE LEO D
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公开(公告)号:CA982916A
公开(公告)日:1976-02-03
申请号:CA166869
申请日:1973-03-23
Applicant: HUGHES TOOL CO
Inventor: DILL HERBERT C , WISLER ALLEN E
IPC: C21D9/50
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