Methods of forming energy-dissipative tubes

• US 10,293,440 B2
• Filed: 11/13/2017
• Issued: 05/21/2019
• Est. Priority Date: 08/21/2009
• Status: Active Grant

• Current Assignee: Titeflex Corporation (Smiths Group International Holdings Ltd.)
• Original Assignee: Titeflex Corporation (Smiths Group International Holdings Ltd.)
• Inventors: Duquette, Scott, Coppola, Brian
• Primary Examiner(s): Long, Donnell A
• Application Number:
  US15/810,755
• Publication Number:
  US 20180065216A1
• Time in Patent Office: 554 Days
• CPC Class Codes: B23P 19/02 for connecting objects by press fit or for detaching same B23P19/10 takes precedence
• CPC Class Codes: B23P 19/08 Machines for placing washers, circlips, or the like on bolts or other members
• CPC Class Codes: F16L 19/041 the ring being an insert F16L19/043 takes precedence
• CPC Class Codes: F16L 9/147 comprising only layers of metal and plastics with or without reinforcement
• CPC Class Codes: H02G 3/0468 Corrugated
• CPC Class Codes: H02G 3/0481 with a circular cross-section H02G3/0468, H02G3/0475 take precedence
• CPC Class Codes: H05F 3/00 Carrying-off electrostatic charges from shoes A43B7/36; from living beings A61N1/14; from tyres B60C19/08; from vehicles B60R16/06; from aircraft B64D45/02; from large containers B65D90/46
• CPC Class Codes: Y10T 29/49117 Conductor or circuit manufacturing
• CPC Class Codes: Y10T 29/49124 On flat or curved insulated base, e.g., printed circuit, etc.
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

One aspect of the invention provides a method of forming an energy-dissipative tube. In one embodiment, the method includes: extruding a resin layer over an outer surface of corrugated stainless steel tubing and impregnating the resin layer with metal particles. In another embodiment, the method includes: extruding a resin layer comprising a fire retardant over an outer surface of corrugated stainless steel tubing and impregnating the resin layer with metal particles. In another embodiment, the method includes: extruding a resin layer comprising between about 20% to 60% magnesium hydroxide, aluminum trihydrate, or halogenated fire retardants by weight over an outer surface of corrugated stainless steel tubing and impregnating the resin layer with metal particles selected from the group consisting of: copper, aluminum, gold, silver, and nickel.

Claims

1. A method of forming an energy dissipative tube, the method comprising:

extruding a resin layer over an outer surface of corrugated stainless steel tubing; and

impregnating the resin layer with metal particles.

2. The method of claim 1, wherein the metal particles include copper.

3. The method of claim 1, wherein the metal particles include aluminum.

4. The method of claim 1, wherein the metal particles include one or more metal selected from the group consisting of:

gold, silver, and nickel.

5. The method of claim 1, wherein the resin layer includes a fire retardant.

6. The method of claim 5, wherein the resin layer includes between about 20% to 60% magnesium hydroxide, aluminum trihydrate, or halogenated fire retardants by weight.

7. A method of forming an energy dissipative tube, the method comprising:

extruding a resin layer comprising a fire retardant over an outer surface of corrugated stainless steel tubing; and

impregnating the resin layer with metal particles.

8. A method of forming an energy dissipative tube, the method comprising:

extruding a resin layer comprising between about 20% to 60% magnesium hydroxide, aluminum trihydrate, or halogenated fire retardants by weight over an outer surface of corrugated stainless steel tubing; and

impregnating the resin layer with metal particles selected from the group consisting of;

copper, aluminum, gold, silver, and nickel.