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21. 发明授权

US2302643A Method and composition for treating metals 失效
标题翻译：处理金属的方法和组成
公开(公告)号：US2302643A
公开(公告)日：1942-11-17
申请号：US39520641
申请日：1941-05-26
申请人： PARKER RUST PROOF CO
发明人： THOMPSON JOHN S
IPC分类号： C23C22/48
CPC分类号： C23C22/48 , Y10T428/12535 , Y10T428/1266 , Y10T428/12667

22. 发明授权

US2209916A Conveyer mechanism 失效
公开(公告)号：US2209916A
公开(公告)日：1940-07-30
申请号：US21741038
申请日：1938-07-05
申请人： PARKER RUST PROOF CO
发明人： GORDON ROBERT H
IPC分类号： B65G49/04
CPC分类号： B65G49/0409

23. 发明授权

US2209915A Conveyer mechanism 失效
公开(公告)号：US2209915A
公开(公告)日：1940-07-30
申请号：US21740938
申请日：1938-07-05
申请人： PARKER RUST PROOF CO
发明人： GORDON ROBERT H
IPC分类号： B65G49/04
CPC分类号： B65G49/0409 , B65G49/045

24. 发明授权

US1842085A Rust proofing composition and method of making the same 失效
标题翻译：防锈组合物和制造方法
公开(公告)号：US1842085A
公开(公告)日：1932-01-19
申请号：US6456925
申请日：1925-10-24
申请人： PARKER RUST PROOF CO
发明人： MATTHEW GREEN , JONES ELMER M
IPC分类号： C23C22/18
CPC分类号： C23C22/18

25. 发明授权

US1839523A Process for producing iron phosphate 失效
标题翻译：磷酸铁生产工艺
公开(公告)号：US1839523A
公开(公告)日：1932-01-05
申请号：US27377628
申请日：1928-04-28
申请人： PARKER RUST PROOF CO
发明人： ALLEN WILLIAM H
IPC分类号： C01B25/37
CPC分类号： C01B25/375

26. 发明授权

US1639694A Process of rust proofing and articles produced thereby 失效
标题翻译：防锈工艺及其制作的物品
公开(公告)号：US1639694A
公开(公告)日：1927-08-23
申请号：US10816226
申请日：1926-05-10
申请人： PARKER RUST PROOF CO
发明人： MATTHEW GREEN , WILLARD HOBART H
IPC分类号： C23C22/18
CPC分类号： C23C22/18

27. 发明授权

US3032447A Process for continuously operating chromating solutions 失效
标题翻译：连续操作铬酸盐溶液的工艺
公开(公告)号：US3032447A
公开(公告)日：1962-05-01
申请号：US77644358
申请日：1958-11-26
申请人： PARKER RUST PROOF CO
发明人： WERNER RAUSCH
IPC分类号： B01J39/00 , B01J39/04 , C23C22/86
CPC分类号： B01J39/00 , B01J39/04 , C23C22/86
摘要： In a process of forming a chromate coating on a series of articles of one of the metals, zinc, alloys consisting predominantly of zinc, magnesium, cadmium, copper, silver or brass by treating them with a single aqueous acidic solution containing hexavalent chromium in which the metal or trivalent chromium tends to accumulate in the solution during the treatment and interfere with the coating, the concentration of interfering metal is maintained at a level below that at which it deletenously affects the coating by withdrawing portions of the solution, passing them through a bed of a cation-exchange resin in a form containing both hydrogen ions and other cations that are harmless to the coating in proportions such that the solution is maintained in the effective pH range, and then returning them to the main body of the solution. The other cations may be those of alkali metals or ammonium. Treatment of the solution (which may also contain simple or complex fluoride ions, phosphate ions, sulphate ions, chloride ions, nitrate ions, ferricyanide ions, or arsenate ions) with the resin may be either continuous or intermittent; and two beds of resin are preferably used so that treatment of the solution and regeneration of the resin may be performed simultanously.

28. 发明授权

US2970935A Method of rinsing metallic surfaces with solutions containing hexavalent chromium 失效
标题翻译：用含六价铬的溶液冲洗金属表面的方法
公开(公告)号：US2970935A
公开(公告)日：1961-02-07
申请号：US79621859
申请日：1959-03-02
申请人： PARKER RUST PROOF CO
发明人： CAVANAGH WALTER A
IPC分类号： C23C22/83
CPC分类号： C23C22/83

29. 发明授权

US2884351A Method of cold rolling ferrous strip stock 失效
标题翻译：冷轧铁线条坯料的方法
公开(公告)号：US2884351A
公开(公告)日：1959-04-28
申请号：US56135456
申请日：1956-01-25
申请人： PARKER RUST PROOF CO
发明人： CAVANAGH WALTER R , GIBSON ROBERT C
IPC分类号： B21B1/22 , C23C22/12
CPC分类号： C23C22/12 , B21B1/22
摘要： Ferrous strip is phosphated by treatment with an aqueous acidic zinc phosphate solution containing, by weight 0.05-1.5% zinc 0.12-7.5% calcium, 0.4-2.5% phosphate (as PO4), and an oxidizing agent other than chlorate in an amount sufficient to produce a uniform coating weighing at least 50 mg/sq. foot in not more than 10 seconds, and is then cold rolled. The process is applied to pickled hot-rolled strip. Suitable oxidizing agents are nitrates, nitrites, sulphites, hypochlorites, iodates, periodates, bromates, hydrogen peroxide, t-butyl hydroperoxide, quinones, and organic nitro-compounds such as picric acid, nitroguanidine, nitromethane, nitrourethane, nitraniline, nitrophenol, m - nitrobenzene sulphonate and dinitrobenzene sulphonate. The coatings may be rinsed with a dilute aqueous solution of chromic acid, borax, sodium nitrite or soda ash. The strip is preferably activated after pickling and prior to coating by treating it with an aqueous solution of oxalic acid; tetrasodium pyrophosphate; a mixture of tetrasodium pyrophosphate and a metaphosphate; a dialkyl metal phosphate containing lead, tin or arsenic; or tetrasodium pyrophosphate and/or disodium phosphate containing titanium or zirconium: suitable titanium compounds are the chloride, hydroxide, nitride and titanium potassium oxalate.

30. 发明授权

US2875111A Method of forming phosphate coatings on drawn wire 失效
标题翻译：在拉丝上形成磷酸盐涂层的方法
公开(公告)号：US2875111A
公开(公告)日：1959-02-24
申请号：US47343854
申请日：1954-12-06
申请人： PARKER RUST PROOF CO
发明人： FRANK WILKINSON CYRIL , HENRY JENKINS HERBERT ARTHUR , THOMAS LAKE LESLIE , RADELIFFE STANLEY V
IPC分类号： B21C37/04 , C23C22/10
CPC分类号： B21C37/04 , C23C22/10

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