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187 条记录 (耗时 0.015 秒)

    Moisture control system including control of pulp flow to a paper machine headbox in response to moisture measurement
    21.
    发明授权
    Moisture control system including control of pulp flow to a paper machine headbox in response to moisture measurement 失效
    水分控制系统，包括将纸浆流量控制到纸机头部，以响应水分测量

    公开(公告)号：US3649444A

    公开(公告)日：1972-03-14

    申请号：US3649444D

    申请日：1969-05-15

    申请人： WESTVACO CORP

    发明人： FUTCH JAMES M JR

    IPC分类号： D21F1/06

    CPC分类号： D21F1/06 ,  Y10S162/06 ,  Y10S162/11

    摘要： ON A PAPER MACHINE WHEREIN THE DRIERS ARE OPERATING AT FULL CAPACITY, THE MOISTURE CONTENT OF THE PAPER WEB COMING OFF OF THE MACHINE IS MEASURED. IF THE MOISTURE CONTENT SO MEASURED DEVIATES FROM THE DESIRED MOISTURE CONTENT, CORRECTIVE ACTION IS TAKEN THROUGH READJUSTMENT OF THE BONE DRY BASIS WEIGHT. FLOW RATE OF STOCK TO A PAPER MACHINE HEADBOX IS INCREASED WHEN THE MOISTURE CONTENT IS LOWER THAN THE DESIRED MOISTURE CONTENT AND THE FLOW RATE OF STOCK TO THE HEADBOX IS DECREASED WHEN THE MOISTURE CONTENT IS HIGHER THAN THE DESIRED MOISTURE CONTENT.

    Regeneration of sulfuric acid laden activated carbon
    23.
    发明授权
    Regeneration of sulfuric acid laden activated carbon 失效
    硫酸活性炭再生

    公开(公告)号：US3632314A

    公开(公告)日：1972-01-04

    申请号：US3632314D

    申请日：1970-03-10

    申请人： WESTVACO CORP

    发明人： TORRENCE SAMUEL L

    IPC分类号： C01B17/04 ,  C01B17/60 ,  C01B31/08

    CPC分类号： C01B17/0404 ,  C01B17/60 ,  C01B32/36

    摘要： A two-stage process for regenerating sulfuric acid laden activated carbon by contacting at a temperature below about 350* F. the activated carbon with hydrogen sulfide in an amount of at least 3:1 mole ratio of hydrogen sulfide to adsorbed sulfuric acid whereby the sulfuric acid is reduced to elemental sulfur which remains adsorbed on the activated carbon. The sulfur is then removed from the activated carbon in a second stage by contacting with a sulfur-reducing gas, such as hydrogen to produce a sufficient amount of hydrogen sulfide for use in the first step and the remaining sulfur is recovered.

    摘要翻译： 通过在低于约350°F的温度下接触硫酸负载的活性炭，使硫化氢与吸附的硫酸的摩尔比至少为3:1的硫化氢与硫化氢接触，从而使硫酸 酸被还原成残留在活性炭上的元素硫。 然后在第二阶段通过与硫还原性气体例如氢气接触来除去活性炭中的硫，以产生足够量的用于第一步骤的硫化氢，并回收剩余的硫。

    Refrigerated shipping container
    24.
    发明授权
    Refrigerated shipping container 失效

    公开(公告)号：US3565320A

    公开(公告)日：1971-02-23

    申请号：US3565320D

    申请日：1969-03-03

    申请人： WESTVACO CORP

    发明人： OSBORNE EDWARD L ,  WAGNER FRANKLIN J

    IPC分类号： B65D5/50 ,  B65D5/58 ,  F25D3/08

    CPC分类号： B65D5/5097

    摘要： A two component refrigerated shipping container is disclosed including an outer container and an inner container, said inner container being located within the outer container but isolated from the walls thereof so that the product to be shipped can be packed around the inner container and refrigerant added to the inner container, and said outer container including top closure flaps which cover the product for shipment yet leave the refrigerant filled inner container open for reicing and deicing.

    Method of making moisture resistant paperboard
    25.
    发明授权
    Method of making moisture resistant paperboard 失效
    制作防潮纸板的方法

    公开(公告)号：US3561994A

    公开(公告)日：1971-02-09

    申请号：US3561994D

    申请日：1967-05-03

    申请人： WESTVACO CORP

    发明人： DWYRE JAMES P

    IPC分类号： B65D5/06 ,  B65D5/56 ,  D21H1/36

    CPC分类号： B65D5/067 ,  B65D5/563

    摘要： IN A LIQUID CONTAINER FORMED OF POLYETHYLENE COATED PAPERBOARD, WICKING THROUGH EXPOSED RAW EDGES ON THE INTERIOR OF THE CARTON IS SUBSTANTIALLY REDUCED BY TREATING THE PAPERBOARD WITH SMALL QUNATITIES OF A MOISTURE RESISTANT MATERIAL, SUCH AS WAX, PRIOR TO THE APPLICATION OF THE POLYETHYLENE COATING. THE WAX IS APPLIED TO THE PAPERBOARD IN MOLTEN FORM IN THE RANGE OF APPROXIMATELY 1 TO 7 PERCENT BY WEIGHT OF THE UNCOATED PAPAERBOARD AND DRIVEN EVENLY AND UNIFORMLY THROUGHOUT THE BOARD BY THE SUBSEQUENT APPLICATION OF HEAT.