会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Gasket for sanitary piping and method of manufacturing the same
    • 卫生管道垫片及其制造方法
    • US5749586A
    • 1998-05-12
    • US666274
    • 1996-06-20
    • Makoto AbeKatsuo WadaTakeshi MiyoshiTosiyasu TanimuraTetsuya Akai
    • Makoto AbeKatsuo WadaTakeshi MiyoshiTosiyasu TanimuraTetsuya Akai
    • B29C43/02B29K27/06B29L31/26C09K3/10F16J15/10F16J15/00
    • F16L23/22C09K3/1009F16J15/104
    • A gasket for use in sealing sanitary piping comprises an annular plate of porous polytetrafluoroethylene, the inner surface layer of the gasket being heat treated to form a pore-free fused solidified layer for directly contacting a fluid to be sealed. The fused solidified layer prevents osmotic leakage of sealed fluid. Since the solidified layer is formed only in the surface layer the intrinsic properties of porous polytetrafluoroethylene, such as flexibility and affinity, are retained. The gasket is made by inserting a tubular member with an internal heater into a porous polytetrafluoroethylene gasket so that the tubular member directly contacts the inner surface layer of the gasket. The tubular member is operated at a temperature of 420.degree. to 460.degree. C. and contacts a gasket for 10 to 30 seconds to form the fused and pore-free layer.
    • PCT No.PCT / JP95 / 02195 Sec。 371日期:1996年6月20日 102(e)1996年6月20日PCT PCT 1995年10月23日PCT公布。 WO96 / 12903 PCT出版物 日期1996年2月5日用于密封卫生管道的垫圈包括多孔聚四氟乙烯的环形板,将垫圈的内表面层进行热处理以形成用于直接接触被密封流体的无孔熔融凝固层。 熔融凝固层防止密封流体的渗透泄漏。 由于凝固层仅在表面层中形成,所以保留多孔聚四氟乙烯的固有性质,例如柔软性和亲和性。 衬垫通过将具有内部加热器的管状构件插入多孔聚四氟乙烯垫圈中而制成,使得管状构件直接接触垫圈的内表面层。 管状部件在420°至460℃的温度下操作,并与垫圈接触10至30秒以形成熔融和无孔的层。
    • 8. 发明授权
    • Non-asbestos gasket
    • 无石棉垫片
    • US07976028B2
    • 2011-07-12
    • US11890424
    • 2007-08-06
    • Takeshi MiyoshiHiroki HayashiMasao KonakaYoshinari KobuchiHiroyuki Sasakura
    • Takeshi MiyoshiHiroki HayashiMasao KonakaYoshinari KobuchiHiroyuki Sasakura
    • F16J15/12
    • F16J15/122
    • By improving a metal gasket having a corrugated portion which is advantageous in sealing property, a non-asbestos gasket in which the sealing property is further improved is provided. A non-asbestos gasket has a three-layer structured sealing portion S configured by: a core layer 1A which is made of a plate of a metal, and which is formed into a concentric circle-like corrugated shape; and surface layers 2, 3 which are made of expanded graphite, and which are stacked on the front and back faces of the core layer, respectively. In an outer circumferential end of the sealing portion S, the core layer 1A is protruded from the front and back surface layers 2, 3 toward an outer diameter side. In an inner circumferential end of the sealing portion S, the front and back surface layers 2, 3 are protruded from the core layer 1A toward an inner diameter side, thereby covering the core layer 1A.
    • 通过改进具有有利于密封性能的波纹部分的金属垫片,提供了进一步提高密封性能的非石棉垫片。 非石棉垫片具有三层结构的密封部分S,该三层结构密封部分S由以下部分构成:由金属板制成并形成为同心圆状的波纹形状的芯层1A; 以及由膨胀石墨制成并分别堆叠在芯层的前表面和后表面上的表面层2,3。 在密封部S的外周端,芯层1A从前后表面层2,3向外径侧突出。 在密封部S的内周端部,前表面层2,3和后表面层2,3从芯层1A向内径侧突出,从而覆盖芯层1A。
    • 9. 发明申请
    • Non-asbestos gasket
    • 无石棉垫片
    • US20080036161A1
    • 2008-02-14
    • US11890424
    • 2007-08-06
    • Takeshi MiyoshiHiroki HayashiMasao KonakaYoshinari KobuchiHiroyuki Sasakura
    • Takeshi MiyoshiHiroki HayashiMasao KonakaYoshinari KobuchiHiroyuki Sasakura
    • F16J15/10
    • F16J15/122
    • By improving a metal gasket having a corrugated portion which is advantageous in sealing property, a non-asbestos gasket in which the sealing property is further improved is provided. A non-asbestos gasket has a three-layer structured sealing portion S configured by: a core layer 1A which is made of a plate of a metal, and which is formed into a concentric circle-like corrugated shape; and surface layers 2, 3 which are made of expanded graphite, and which are stacked on the front and back faces of the core layer, respectively. In an outer circumferential end of the sealing portion S, the core layer 1A is protruded from the front and back surface layers 2, 3 toward an outer diameter side. In an inner circumferential end of the sealing portion S, the front and back surface layers 2, 3 are protruded from the core layer 1A toward an inner diameter side, thereby covering the core layer 1A.
    • 通过改进具有有利于密封性能的波纹部分的金属垫片,提供了进一步提高密封性能的非石棉垫片。 非石棉垫片具有三层结构密封部分S,该三层结构密封部分S由以下部分构成:芯层1A由金属板制成并形成为同心圆状的波纹形状; 以及由膨胀石墨制成并分别堆叠在芯层的前表面和后表面上的表面层2,3。 在密封部S的外周端,芯层1A从前后表面层2,3向外径侧突出。 在密封部S的内周端部,前表面层2,3和背面层2,3从芯层1A向内径侧突出,从而覆盖芯层1A。