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公开(公告)号：US3002871A
公开(公告)日：1961-10-03
申请号：US68415657
申请日：1957-09-16
Applicant: RUHRCHEMIE AG
Inventor： HEINRICH TRAMM , FRANZ SCHAUB , RUDOLF RUGGEBERG HEINZ
CPC classification number: B29C65/0627 , B29C66/1122 , B29C66/1142 , B29C66/1162 , B29C66/5221 , B29C66/5229 , B29C66/636 , B29C66/71 , B29C66/929 , B29K2077/00 , B29K2075/00 , B29K2027/06 , B29K2025/06 , B29K2023/06
Abstract: 863,166. Seaming. RUHRCHEMIE A.G. Sept. 13, 1957 [Sept. 22, 1956], No. 28923/57. Class 42 (1). [Also,in Group XXVIII] Parts, of thermoplastic material, are welded together by frictional heat produced at the surfaces to be joined, the heat being produced by an oscillatory motion of at least one of the parts, the latter being held together under pressure. As shown, the ends of pipes 1, 2 of polyvinyl chloride, polyamide, polyurethane, polystyrene or polyethylene are held in abutment by clips 4, 5, the clip 4 being connected by springs 7 to a ring 6 clamped on to the pipe 2 and attached to an arm 9 moved by a crank 10 on the shaft of an electric or pneumatic motor, internal-combustion engine or a manually or mechanically-energized accumulator.
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公开(公告)号：US2766880A
公开(公告)日：1956-10-16
申请号：US30145352
申请日：1952-07-29
Applicant: RUHRCHEMIE AG
Inventor： FRANZ SCHAUB , HEINRICH TRAMM
IPC: B07B4/02
CPC classification number: B07B4/025
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公开(公告)号：US2234661A
公开(公告)日：1941-03-11
申请号：US11595136
申请日：1936-12-15
Applicant: RUHRCHEMIE AG
Inventor： HEINRICH TRAMM
IPC: C10G50/02
CPC classification number: C10G50/02 , Y10S208/95
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公开(公告)号：US2106938A
公开(公告)日：1938-02-01
申请号：US2774435
申请日：1935-06-21
Applicant: RUHRCHEMIE AG
Inventor： HEINRICH TRAMM , CARL CLAR , PAUL KUHNEL , WALTER SCHUFF
IPC: B27K3/15
CPC classification number: C09K21/14
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15.发明授权Process for the production of alkali metal nitrates by reaction of alkali metal chlorides and nitric acid 失效通过碱金属氯化物和硝酸的反应生产碱金属硝酸盐的方法
公开(公告)号：US2092383A
公开(公告)日：1937-09-07
申请号：US56252831
申请日：1931-09-12
Applicant: RUHRCHEMIE AG
Inventor： HEINRICH TRAMM , WALTER GRIMME
IPC: C01D9/04
CPC classification number: C01D9/04
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Patent Agency Ranking
公开(公告)号：US1999026A
公开(公告)日：1935-04-23
申请号：US64188732
申请日：1932-11-09
Applicant: RUHRCHEMIE AG
Inventor： HEINRICH TRAMM , CARL CLAR
IPC: C05B7/00
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公开(公告)号：US2802843A
公开(公告)日：1957-08-13
申请号：US33121653
申请日：1953-01-14
Applicant: RUHRCHEMIE AG
Inventor： HEINRICH TRAMM , HELMUT KOLLING , FRIEDRICH SCHNUR , KARL BUCHNER , HERBERT HEGER , EWALD STIEBLING
IPC: B01J8/10
CPC classification number: B01J8/10 , B01J2219/00772 , B01J2219/185
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公开(公告)号：US2766534A
公开(公告)日：1956-10-16
申请号：US41088954
申请日：1954-02-17
Applicant: RUHRCHEMIE AG
Inventor： FRANZ SCHAUB , HEINRICH TRAMM
CPC classification number: F26B17/1458 , B01D46/32
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公开(公告)号：US2639947A
公开(公告)日：1953-05-26
申请号：US9490249
申请日：1949-05-23
Applicant: RUHRCHEMIE AG
Inventor： HEINRICH TRAMM , FRANZ SCHAUB
CPC classification number: B01D3/008 , B01J19/0053 , B01J19/006 , B01J2219/00765
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公开(公告)号：US2611691A
公开(公告)日：1952-09-23
申请号：US9493049
申请日：1949-05-23
Applicant: RUHRCHEMIE AG
Inventor： HEINRICH TRAMM
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