公开(公告)号：EP2686090A4

公开(公告)日：2015-01-28

申请号：EP12757715

申请日：2012-03-16

申请人： MARKEL CORP

发明人： JERMAN ROBERT E ,  BROWN CORNELIUS JR ,  HOBBS KENNETH D ,  RUANO CARLOS ,  WOLANSKI CHARLES E

IPC分类号： B01D69/08 ,  B01D63/02 ,  B01D63/04 ,  B01D71/32 ,  B01D71/36 ,  B29C65/00 ,  B29C65/02 ,  B29C65/48 ,  B29C65/50 ,  B29C65/68 ,  B29L31/14 ,  B29L31/60

CPC分类号： B01D71/36 ,  B01D63/02 ,  B01D63/021 ,  B01D63/022 ,  B01D63/023 ,  B01D63/024 ,  B01D63/025 ,  B01D69/02 ,  B01D2315/08 ,  B01D2319/04 ,  B01D2323/00 ,  B29C65/02 ,  B29C65/10 ,  B29C65/4815 ,  B29C65/5028 ,  B29C65/5057 ,  B29C65/68 ,  B29C66/0042 ,  B29C66/1122 ,  B29C66/53261 ,  B29C66/69 ,  B29C66/71 ,  B29C66/727 ,  B29C66/73161 ,  B29C66/8122 ,  B29C66/81261 ,  B29C66/81471 ,  B29K2995/0049 ,  B29L2031/14 ,  B29L2031/602 ,  Y10T156/1049 ,  B29K2027/18 ,  B29K2827/12 ,  B29K2081/06 ,  B29K2079/08 ,  B29K2077/00 ,  B29K2071/00 ,  B29K2069/00 ,  B29K2027/12 ,  B29K2027/06

摘要： A hollow fiber membrane fluid transport device and its method of manufacture are disclosed wherein the fibers are comprised of Polytetrafluoroethylene (PTFE), and the potting materials are comprised of fluorocopolymer and or fluoroterpolymer based materials. The potting method described herein, utilizes a compressed chemically resistant fluorocopolymer and or fluoroterpolymer film, allows for ease of manufacture without destruction of the PTFE hollow fibers, with high packing densities, and without the processing complexity of pre-melting, extruding, or chemical crosslinking of any polymeric adhesives. Furthermore, the PTFE hollow fibers can be treated with a fluoropolymeric solvent solution before the chemically resistant film is applied to enhance the adhesion of the PTFE fiber to the film. PTFE hollow fibers, and its respective fluoro-co and terpolymers as potting films, impart high packing densities, superb chemical resistance and temperature resistance without membrane contamination, or low fiber pull strength, as is sometimes observed with standard potting materials such as polyurethane and epoxy.

公开(公告)号：EP1238200A4

公开(公告)日：2004-03-17

申请号：EP99961734

申请日：1999-11-22

申请人： MARKEL CORP

发明人： REYNOLDS KIM A ,  MARINO CHARLES P ,  KRAY KEVIN P

IPC分类号： F16D13/58 ,  F16D13/60 ,  F16D23/00 ,  F16D65/00 ,  F16D65/02 ,  F16D69/00

摘要： This invention relates generally to cable assemblies, and more particularly to flexible cable assemblies of the type used in automobiles for transmitting rotary or linear motion along a predetermined path. In a particular aspect, the present invention relates to abrasion-resistant fluorocarbon polymer composites, such as polytetrafluoroethylene ("PTFE") composites, having an unexpectedly high frictional efficiency under high load conditions and after long cycle times. The present invention relates to abrasion-resistant, anti-friction tubing formed from such composites, and to uses of such tubing as a liner for flexible, motion transmitting cable assemblies.

公开(公告)号：EP2760568A4

公开(公告)日：2015-11-18

申请号：EP12837514

申请日：2012-09-27

申请人： MARKEL CORP

发明人： JERMAN ROBERT E ,  HOBBS KENNETH D ,  WOLANSKI CHARLES E

IPC分类号： B01D63/06 ,  B01D63/02 ,  B01D65/00 ,  B01D71/32 ,  B01D71/34 ,  B01D71/36 ,  F16L13/14 ,  F16L41/00 ,  F16L47/26

CPC分类号： B01D63/061 ,  B01D71/32 ,  B01D71/34 ,  B01D71/36 ,  B01D2313/04 ,  B01D2313/13 ,  F16L33/227 ,  F16L41/001 ,  Y10T29/49826 ,  Y10T29/53

摘要： A tubular membrane module and its method of manufacture are disclosed wherein tubular membranes form an interference self-sealing fit with hard tube sheets with the aid of a hard hollow mandrel inserted at the end of the tubular membranes. The tubular membranes are comprised of porous, compressible PTFE and/or fluorocopolymers. The self-sealing method described herein requires no heat treatment, allows for ease of manufacture without destruction of the tubular membranes and without the processing complexity of utilizing any additional potting agent, extrusion, or chemical cross-linking of any polymeric adhesives. The self sealing PTFE tubular membranes have superb chemical resistance and temperature resistance, and through the benefits of this invention, offer higher pullout resistance than typically observed with potting materials such as polyurethane and epoxy. In addition, the self-sealing method is reversible and non-destructive (whereas chemical potting and sealing methods using heat are not), as one can easily remove one or more damaged tubes and replace them.

公开(公告)号：EP1781956A4

公开(公告)日：2008-07-23

申请号：EP05762295

申请日：2005-06-10

申请人： MARKEL CORP

发明人： REYNOLDS KIM ,  PANISH DAVID J

IPC分类号： F16C1/10

CPC分类号： F16C1/26 ,  F16C1/108 ,  F16C1/267 ,  F16C2240/46 ,  F16C2240/60 ,  F16C2240/70 ,  Y10T74/20456

摘要： Disclosed are cable assemblies, liners for cable assemblies and methods for making same. The liner in preferred embodiments comprises a multi-wall or multi-layer arrangement having a first wall or layer disposed in operative relationship to the motion transmitting member of assembly and a second wall or layer substantially surrounding the inner wall or layer wherein the outer layer comprises thermoplastic elastomer of a type and thickness effective to substantially improve the noise rating of the structure