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公开(公告)号：US5002709A
公开(公告)日：1991-03-26
申请号：US383912
申请日：1989-07-21
CPC分类号： F24H1/0045 , B29C44/1247 , F24H1/182
摘要： A method of producing a foam insulated vessel, such as a water heater. The water heater includes a tank to contain water to be heated and a jacket is spaced outwardly of the tank to provide a cavity therebetween. A band of self-supporting, gas entrained, foamable resin is applied to either the outer surface of the lower end portion of the tank, or to the inner surface of the jacket. The band of foamable resin expands radially to form a closure or dam that divides the cavity into a pair of isolated spaces. A liquid foamable resin composition is then introduced into one of the spaces and expands to fill the space and provide an insulating layer between the tank and the jacket.
摘要翻译： 一种制造泡沫绝热容器的方法，例如热水器。 热水器包括容纳待加热水的罐，并且夹套与槽隔开以在其间提供空腔。 自支撑气体携带的可发泡树脂的带施加到罐的下端部的外表面或者套管的内表面。 可发泡树脂带径向膨胀以形成将空腔分成一对隔离空间的封闭物或大坝。 然后将液体可发泡树脂组合物引入其中一个空间并膨胀以填充空间并在罐和夹套之间提供绝缘层。
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公开(公告)号：US4957097A
公开(公告)日：1990-09-18
申请号：US157320
申请日：1988-02-18
IPC分类号： F24H1/18
CPC分类号： F24H1/182 , Y10S220/902
摘要： A foam insulated vessel, such as a water heater. The water heater includes a tank to contain water to be heated and a jacket is spaced outwardly of the tank to provide an annular cavity therebetween. An annular flexible strip is secured to the surface of one of said members, and is in sealing relation with the other of said members, thus forming a closure or dam at the lower end of the cavity. In a preferred form, the strip includes a flange secured to the tank and a body portion extends outwardly from the flange and terminates in a downwardly extending lip, which is located at an acute angle with respect to the body portion. The lip is in sealing engagement with the jacket. When a liquid foamable resin is introduced into the upper end of the cavity, the pressure acts to force the body portion of the seal downwardly, increasing the sealing effect against the jacket to retain the liquid resin within the cavity.
摘要翻译： 泡沫隔热容器，如热水器。 热水器包括容纳待加热水的罐，并且夹套与箱体间隔开以在其间提供环形空腔。 环形柔性带固定到所述构件之一的表面上，并且与所述构件中的另一个密封，从而在空腔的下端形成封闭件。 在优选形式中，条带包括固定到罐的凸缘，并且主体部分从凸缘向外延伸并且终止于相对于主体部分以锐角定位的向下延伸的唇缘。 唇部与护套密封接合。 当将液体可发泡树脂引入空腔的上端时，压力用于迫使密封件的主体部分向下，增加对套管的密封效果，以将液体树脂保持在空腔内。
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公开(公告)号：US4879801A
公开(公告)日：1989-11-14
申请号：US343957
申请日：1989-04-26
CPC分类号： F24H9/0047 , F24H1/183 , Y10T29/49879 , Y10T29/49885 , Y10T29/49904
摘要： A cathodically protected water heater which eliminates the need of a conventional anode rod. The water heater tank includes a cylindrical shell enclosed by upper and lower heads and a flue which is mounted within openings in the lower and upper heads. The outer surface of the flue as well as the upper surface of the lower head is coated with a metal anodic to steel, and the metal coating on the flue extends continuously from the lower head to a location above the upper head. The remainder of the inner surface of the heater is also coated with the anodic metal. The anodic metal is applied in a sufficient thickness at least at the junction of the lower end of the peripheral flange of the upper head and the shell to bridge and seal the crevice opening which typically exists between the free end of the upper head flange and the shell wall. The coating over the crevice hydraulically seals the exterior weld between the upper head and shell from water contained in the heater and provides a corrosion barrier and anodic surface to contained water. Where welds are provided through the metal coating at the upper head/flue and shell/lower head junctions, the metal coating flows about the welds to also hydraulically seal them off from contained water and provide a corrosion barrier and anodic surface to contained water.
摘要翻译： 一种阴极保护的热水器，不需要常规的阳极棒。 热水器箱包括由上下头部封闭的圆筒形壳体和安装在下部和上部头部的开口内的烟道。 烟道的外表面以及下部头部的上表面涂有金属阳极氧化钢，烟道上的金属涂层从下部头部连续延伸到上部头部上方。 加热器的内表面的其余部分也涂覆有阳极金属。 阳极金属至少在上部头部的外周边缘的下端和外壳的接合处施加足够的厚度以桥接并密封通常存在于上部头部法兰的自由端和 壳壁。 缝隙上的涂层在上部头部和外壳之间的外部焊接部分与包含在加热器中的水液压密封，并提供防腐蚀屏障和阳极表面以容纳水分。 如果在上部头部/烟道和外壳/下部接头处通过金属涂层提供焊接，则金属涂层在焊缝周围流动，也将其与含水水压密封，并为含水提供腐蚀屏障和阳极表面。
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4.发明授权Apparatus for powering the corrosion protection system in an electric water heater 失效用于为电热水器中的腐蚀保护系统供电的装置
公开(公告)号：US4975560A
公开(公告)日：1990-12-04
申请号：US403704
申请日：1989-09-06
CPC分类号： F24H9/0047 , C23F13/02 , C23F13/04
摘要： A common source of DC potential is utilized to simultaneously provide power to the protective anode in an electrically heated hot water heater and to the circuit used to bias the heating element jacket to reduce the current load the jacket would otherwise impose on the protective anode. By utilizing a common DC power source, the desired voltage relationship between the protective anode, the positively biased heating element jacket and negatively biased tank wall may be maintained, regardless of changes in the supply. The need for a second separate power supply is obviated and overall construction of the system substantially simplified. The DC power source may comprise a battery or rectified AC current from the power to the heating element.
摘要翻译： 利用DC电势的共同来源同时向电加热的热水加热器中的保护阳极提供电力，以及用于偏置加热元件护套的电路，以减少护套否则将施加在保护阳极上的电流负载。 通过利用公共直流电源，可以保持保护阳极，正偏置的加热元件护套和负偏压的罐壁之间的期望的电压关系，而不管电源的变化。 消除了对第二个单独电源的需要，并且系统的整体结构大大简化。 DC电源可以包括从电力到加热元件的电池或整流的AC电流。
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公开(公告)号：US4945892A
公开(公告)日：1990-08-07
申请号：US293682
申请日：1989-01-05
IPC分类号： F24H1/18
CPC分类号： F24H1/182 , Y10S220/902
摘要： A water heater includes a lower skirt ring (10, 50) supporting and spacing an inner storage tank (2) above a support surface (10a), and an outer jacket (42, 54) spaced outwardly therefrom to define an annular cavity space (22) therebetween. The outer jacket is slid along the inner storage tank during assembly. A seal (46) on the inner surface of the outer jacket, preferably in the form of a rolled-in dimple, engages the inner storage tank and/or the lower skirt ring, either at a seal (44) or a flange (52), and forms a dam (48) during sliding of the outer jacket along the inner storage tank. The dam prevents leakage of liquid therepast during foaming insulation. The rolled-in dimple (56) may extend all the way through the annular space to engage the tank wall or skirt ring.
摘要翻译： 热水器包括支撑和间隔在支撑表面（10a）上方的内部储存箱（2）的下部裙环（10,50）和从其间隔开的外部护套（42,54），以限定环形空腔（ 22）。 外套在装配过程中沿内储槽滑动。 在外护套的内表面上的密封件（46）优选地以卷起的凹坑的形式，在密封件（44）或凸缘（52）处接合内存储罐和/或下裙环 ），并且在外护套沿内储槽滑动期间形成坝（48）。 发泡保温期间大坝防止液体溢出。 卷起的凹坑（56）可以一直延伸穿过环形空间以接合罐壁或裙环。
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公开(公告)号：US4790290A
公开(公告)日：1988-12-13
申请号：US101847
申请日：1987-09-28
CPC分类号： F24H9/0047 , B29C44/1247 , B29C44/188 , F24H1/182 , B29C33/0038 , Y10T29/49879
摘要： A method and apparatus for providing foam resin insulation for a vessel, such as a water heater. The water heater includes a tank to contain water to be heated and has a plurality of openings to receive components of the water heater. A jacket is spaced outwardly of the tank to provide a space therebetween to receive foam resin insulation. Prior to introducing the resin into the space, an elongated member, such as a rod, is engaged with the opening in the tank and the rod extends outwardly through an aligned opening in the jacket. A resilient pad, which is movable on the rod, is compressed against the outer surface of the jacket to seal the space between the jacket opening and the rod. A liquid foamable resin is introduced in the space between the tank and the jacket and expands to fill the space and provide an insulating layer.
摘要翻译： 一种用于为诸如热水器的容器提供泡沫树脂绝缘的方法和装置。 热水器包括容纳待加热水的罐，并且具有多个开口以容纳热水器的部件。 夹套与罐之间向外间隔开，以在其间提供接收泡沫树脂绝缘的空间。 在将树脂引入空间之前，诸如杆的细长构件与罐中的开口接合，并且杆通过套管中对齐的开口向外延伸。 可在杆上移动的弹性垫被压靠在护套的外表面上以密封护套开口和杆之间的空间。 将液体可发泡树脂引入到罐和护套之间的空间中并膨胀以填充空间并提供绝缘层。
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公开(公告)号：US4784087A
公开(公告)日：1988-11-15
申请号：US107642
申请日：1987-10-13
CPC分类号： F16B2/185 , B29C44/1242 , F16B2/04 , F24H1/182 , B29C33/20 , Y10T29/4943 , Y10T29/49879
摘要： A clamping apparatus for use in applying foam resin insulation between the tank and the outer jacket of a water heater. The jacket of the water heater is spaced outwardly of the tank to provide a space that receives a foamable resin, such as polyurethane. The upper end of the jacket is enclosed by a thin, sheet metal cover. To clamp the cover to the jacket and prevent deformation of the cover due to the pressure of the resin foam, a clamping mechanism is utilized which includes a plate or clamping member that is positioned flatwise against the cover, and a clamp assembly secures the clamping plate to the upper end of a flue, or other tubular opening in the tank. In a preferred form, the clamping mechanism consists of a resilient, expandable plug which is inserted within the opening in the tank and is expanded outwardly into tight engagement with the wall bordering the opening to secure the clamping plate to the tank.
摘要翻译： 一种用于在水箱和热水器的外套之间施加泡沫树脂绝缘的夹紧装置。 热水器的护套与罐隔开，以提供容纳可发泡树脂（例如聚氨酯）的空间。 护套的上端由薄的金属板盖住。 为了将盖子夹紧到护套上并防止由于树脂泡沫体的压力引起的盖子的变形，使用夹紧机构，该夹紧机构包括平板地靠在盖子上的板或夹紧构件，并且夹具组件固定夹紧板 到烟道的上端，或者罐中的其他管状开口。 在优选形式中，夹紧机构由弹性的可膨胀塞子组成，该塞子插入箱体内的开口内，并向外膨胀，与与开口相邻的壁紧密接合，以将夹板固定到罐体上。
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公开(公告)号：US4783896A
公开(公告)日：1988-11-15
申请号：US131576
申请日：1987-12-11
CPC分类号： F24H9/0047 , F24H1/183 , Y10T29/49879 , Y10T29/49885 , Y10T29/49904
摘要： A cathodically protected water heater which eliminates the need of a conventional anode rod. The water heater tank includes a cylindrical shell enclosed by upper and lower heads, and a gas burner is located beneath the lower head. The waste products of combustion are discharged upwardly through the tank via a flue which is mounted within openings in the lower and upper heads. The outer surface of the flue as well as the upper surface of the lower head is coated with a metal anodic to steel, and the metal coating on the flue extends continuously from the lower head to a location about the upper head. The inner surface of the shell and the upper head are coated with a corrosion resistant coating, such as glass or metal anodic to steel as well, and the upper edge of the flange in the upper head bordering the opening is welded directly through the metal coating to the flue while the outer periphery of the lower head is welded to the lower edge of the shell. When a metal anodic to steel is coated onto the interior surface of the upper head and shell, it is applied in a sufficient thickness at least at the junction of the lower end of the peripheral flange of the upper head and the shell to bridge and seal the crevice opening which typically exists between the free end of the upper head flange and the shell wall. The metal coating over the upper head/shell crevice hydraulically seals the exterior weld between the upper head and shell from water contained in the heater and provides a corrosion barrier and anodic surface to contained water. Where welds are provided through the metal coating at the upper head/flue junction and shell/lower head junction, the metal coating flows about the weld and contacts the abutting corrosion resistant material to also hydraulically seal off those welds from contained water and provide a corrosion barrier and anodic surface to contained water. As the anodic metal coating is located centrally in the tank and extends the full height of the tank, more effective cathodic protection is achieved.
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公开(公告)号：US4838208A
公开(公告)日：1989-06-13
申请号：US200468
申请日：1988-05-31
CPC分类号： F24H9/0047 , F24H1/183
摘要： A cathodically protected water heater which eliminates the need of a conventional anode rod. The water heater tank includes a cylindrical shell enclosed by upper and lower heads and a flue which is mounted within openings in the lower and upper heads. The outer surface of the flue as well as the upper surface of the lower head is coated with a metal anodic to steel, and the metal coating on the flue extends continuously from the lower head to a location above the upper head. The remainder of the inner surface of the heater is also coated with the anodic metal. The anodic metal is applied in a sufficient thickness at least at the junction of the lower end of the peripheral flange of the upper head and the shell to bridge and seal the crevice opening which typically exists between the free end of the upper head flange and the shell wall. The coating over the crevice hydraulically seals the exterior weld between the upper head and shell from water contained in the heater and provides a corrosion barrier and anodic surface to contained water. Where welds are provided through the metal coating at the upper head/flue and shell/lower head junctions, the metal coating flows about the welds to also hydraulically seal them off from contained water and provide a corrosion barrier and anodic surface to contained water.
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