公开(公告)号：EP4182583A1

公开(公告)日：2023-05-24

申请号：EP21851448.7

申请日：2021-07-27

申请人： Teadit N.A., Inc.

发明人： BARROSO, Carlos, Daniel, Braga Girao ,  DAY, Christopher, Louis ,  VEIGA, Jose, Carlos, Carvalho ,  CRISTELLO, Josmar Baruffaldi ,  RIGGS, Robert, Adam ,  VALLE, André, Carlos de Azevedo

IPC分类号： F16J15/00 ,  G01N21/64 ,  B29K27/18

公开(公告)号：EP2850345A1

公开(公告)日：2015-03-25

申请号：EP13791329.9

申请日：2013-05-15

申请人： Teadit N.A., Inc.

发明人： VEIGA, Jose Carlos ,  GIRAO BARROSO, Carlos Daniel Braga

IPC分类号： F16J15/12

CPC分类号： F16J15/104 ,  F16J15/22

摘要： A compressible anti-extrusion packing (10) for sealing valve stems, shafts and rods having an interbraided, round braided or square braided outer layer (14) disposed over a densified interbraided, round braided or square-braided core (12). In certain embodiments, the compressible packing (10) includes a metal jacketed (22) flexible graphite yarn (20) interbraided as a core (12) and an interbraided outer layer (14) made of flexible graphite yarn (16) with a carbon carrier (24). In one embodiment, the metal jacket (22) is a knitted metal jacket. The core (12) is densified by mechanical compression to control density and size.

公开(公告)号：EP3334961A1

公开(公告)日：2018-06-20

申请号：EP16847366.8

申请日：2016-09-16

申请人： Teadit N.A., Inc.

发明人： VALLE, Andre Carlos de Azevedo ,  NETO, Jose Antonio de Almeida ,  VEIGA, Jose Carlos Carvalho

IPC分类号： F16J15/10 ,  F16J15/02 ,  F16L23/22

CPC分类号： B29C53/562 ,  B29B13/06 ,  B29C43/003 ,  B29C53/8083 ,  B29C53/845 ,  B29C55/005 ,  B29C55/18 ,  B29C65/48 ,  B29C69/002 ,  B29K2027/18 ,  B29K2105/16 ,  B29L2031/265 ,  F16J15/022 ,  F16J15/104

摘要： A method of manufacturing a spiral-wound PTFE gasket includes winding a laminated PTFE tape (300) around a shaft (305) that has an outer diameter that coincides with the gasket inner diameter to create a PTFE cylinder (315) having an outer diameter that coincides with the gasket outer diameter; sintering the PTFE cylinder (315); and removing a radial segment of the PTFE cylinder (315) to form the gasket (100), the radial segment having a thickness that coincides with the gasket thickness.