A method and apparatus for conducting an electrical current between a first transport member and a second transport member. In one illustrative embodiment, a coupling assembly comprises a first fitting associated with a first end of a first transport member, a second fitting associated with a second
A method and apparatus for conducting an electrical current between a first transport member and a second transport member. In one illustrative embodiment, a coupling assembly comprises a first fitting associated with a first end of a first transport member, a second fitting associated with a second end of a second transport member, and a seal. The seal is configured for placement around the first fitting and the second fitting when the first end of the first transport member is positioned relative to the second end of the second transport member. The seal is further configured to seal an interface between the first transport member and the second transport member. The seal is comprised of a material configured such that the seal has a level of conductivity within a selected range and such that a conductive pathway is formed between the first transport member and the second transport member.
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1. A coupling assembly comprising: a first ferrule attached to a first end of a first transport member, the first ferrule and the first transport member both having a level of conductivity within a selected range;a second ferrule attached to a second end of a second transport member, the second ferr
1. A coupling assembly comprising: a first ferrule attached to a first end of a first transport member, the first ferrule and the first transport member both having a level of conductivity within a selected range;a second ferrule attached to a second end of a second transport member, the second ferrule and the second transport member both having the level of conductivity within the selected range;a first gasket received by the first ferrule, wherein the first gasket comprises a viscoelastic material having the level of conductivity within the selected range;a second gasket received by the second ferrule, wherein the second gasket comprises the viscoelastic material having the level of conductivity within the selected range;a clamshell device disposed over the first ferrule and the second ferrule, wherein the first gasket and the second gasket are disposed within the clamshell device, and wherein the clamshell device is non-conductive relative to the level of conductivity;a sleeve connected to an inside surface of the clamshell device, wherein the sleeve is in contact with the first gasket and the second gasket, wherein the sleeve has the level of conductivity within the selected range, and wherein sidewalls of the clamshell device are not in contact with any of the sleeve, the first gasket, and the second gasket, wherein a conductive pathway is formed between the first transport member and the second transport member via the first ferrule, the first gasket, the sleeve, the second gasket, and the second ferrule; anda hinge connected to the clamshell device and configured to allow opening and closing of the clamshell device onto the first ferrule, the second ferrule, the first gasket, and the second gasket, and wherein when closed the clamshell device forms a seal between the first transport member and the second transport member. 2. The coupling assembly of claim 1, wherein the selected range is between about 1×10−4 Siemens/centimeters and about 1×10−9 Siemens/centimeters. 3. The coupling assembly of claim 1, wherein the first fitting, the second fitting, the first gasket, the second gasket, and the sleeve are comprised of nonmetallic materials having the level of conductivity within the selected range. 4. The coupling assembly of claim 1, wherein the first gasket is a first O-ring and the second gasket is a second O-ring. 5. The coupling assembly of claim 1, wherein an electrical current induced in at least one of the first transport member and the second transport member by electrostatic charge that builds up on the at least one of the first transport member and the second transport member is conducted along the conductive pathway. 6. The coupling assembly of claim 1, wherein the viscoelastic material comprises a conductive elastomer. 7. The coupling assembly of claim 1, wherein the seal seals the interface between the first end of the first transport member and the second end of the second transport member by reducing a possibility of material flowing at least one of into and out of a channel formed by the first transport member and the second transport member. 8. The coupling assembly of claim 1, wherein the first transport member and the second transport member are fuel transport members in a fuel system for an aerospace vehicle in which the fuel system has an overall level of conductivity within the selected range. 9. A coupling assembly comprising: a first ferrule attached to a first end of a first transport member, the first ferrule and the first transport member both having a level of conductivity within a selected range;a second ferrule attached to a second end of a second transport member, the second ferrule and the second transport member both having the level of conductivity within the selected range;a first gasket received by the first ferrule, wherein the first gasket comprises a viscoelastic material having the level of conductivity within the selected range;a second gasket received by the first ferrule, wherein the second gasket comprises the viscoelastic material having the level of conductivity within the selected range;a third gasket received by the second ferrule, wherein the third gasket comprises a viscoelastic material having the level of conductivity within the selected range;a fourth gasket received by the second ferrule, wherein the fourth gasket comprises the viscoelastic material having the level of conductivity within the selected range;a clamshell device disposed over the first ferrule and the second ferrule, wherein the first gasket and the third gasket are disposed within the clamshell device, wherein the second gasket and the fourth gasket are disposed under the clamshell device, and wherein the clamshell device comprises a material having the level of conductivity; anda sleeve connected to an inside surface of the clamshell device, wherein the sleeve is in contact with the first gasket and the third gasket, wherein the sleeve has the level of conductivity within the selected range, and wherein sidewalls of the clamshell device are not in contact with any of the sleeve, the first gasket, and the second gasket, wherein the sidewalls are in contact with the second gasket and the fourth gasket, wherein a first conductive pathway is formed between the first transport member and the second transport member via the first ferrule, the first gasket, the sleeve, the second gasket, and the second ferrule, and wherein a second conductive pathway is formed between the first transport member and the second transport member via the first ferrule, the second gasket, the clamshell device, the fourth gasket, the second ferrule, and the second transport member. 10. The coupling assembly of claim 9, wherein the selected range is between about 1×10−4 Siemens/centimeters and about 1×10−9 Siemens/centimeters. 11. The coupling assembly of claim 9, wherein the first fitting, the second fitting, the first gasket, the second gasket, the third gasket, the fourth gasket, and the sleeve are comprised of nonmetallic materials having the level of conductivity within the selected range. 12. The coupling assembly of claim 9, wherein the first gasket is a first O-ring, the second gasket is a second O-ring, third gasket is a third O-ring and the fourth gasket is a fourth O-ring. 13. The coupling assembly of claim 9, wherein an electrical current induced in at least one of the first transport member and the second transport member by electrostatic charge that builds up on the at least one of the first transport member and the second transport member is conducted along the conductive pathway. 14. The coupling assembly of claim 9, wherein the viscoelastic material comprises a conductive elastomer. 15. The coupling assembly of claim 9, wherein the seal seals the interface between the first end of the first transport member and the second end of the second transport member by reducing a possibility of material flowing at least one of into and out of a channel formed by the first transport member and the second transport member. 16. The coupling assembly of claim 9, wherein the first transport member and the second transport member are fuel transport members in a fuel system for an aerospace vehicle in which the fuel system has an overall level of conductivity within the selected range. 17. The coupling assembly of claim 9 further comprising: a hinge connected to the clamshell device and configured to allow opening and closing of the clamshell device onto the first ferrule, the second ferrule, the first gasket, the second gasket, the third gasket, and the fourth gasket, and wherein when closed the clamshell device forms a seal between the first transport member and the second transport member.
Winter, Karl-Heinz; Gerth, Klaus, Glass elements with a conductive coating, the use thereof, as well as devices, installations and pipe conducts produced therefrom.
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