Trackable, identifiable foreign material exclusion device

• US 7,533,698 B2
• Filed: 08/26/2005
• Issued: 05/19/2009
• Est. Priority Date: 08/26/2005
• Status: Active Grant

• Current Assignee: Advanced Pneumatics Incorporated
• Original Assignee: Advanced Pneumatics Incorporated
• Inventors: Orosz, Stephen William, Nolfi, Thomas Joseph, Nolfi, Mario Michael
• Primary Examiner(s): Brinson; Patrick F
• Application Number:
  US11/212,837
• Publication Number:
  US 20070059162A1
• Time in Patent Office: 1,362 Days
• Field of Search: 138/89, 138/90, 138/104, 215/230, 215/355, 215/364, 220/DIG.19, 220/789, 220/801
• US Class Current: 138/89
• CPC Class Codes: F02C 7/00 Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants controlling F02C9/00
• CPC Class Codes: F04D 29/701 especially adapted for elastic fluid pumps
• CPC Class Codes: F05D 2260/607 Preventing clogging or obstruction of flow paths by dirt, dust, or foreign particles
• CPC Class Codes: Y10S 220/19 Rubber plugs and caps

Abstract

A foreign material exclusion device which is adapted to be utilized in tubes, pipes, or the like to prevent entry of debris into a potentially sensitive area of an assembly, such as a turbine assembly utilized in a power plant. In one embodiment, the device is adapted to be connected to a non-moving portion of a rotary milling tool, such as the collet, before a milling operation to prevent milling debris from entering a sensitive portion of a tube or pipe. In a further embodiment each device of the present invention includes a unique identifier or identification element, such as a machine readable bar code or RFID (radio frequency identification) tag to insure all devices utilized for a particular job are accounted for.

Claims

1. An identifiable foreign material exclusion device for preventing foreign material from accessing a predetermined location in a cavity, comprising:

a resilient body and an extraction member operatively connected to the body, wherein the device further includes an identification element that provides the device with an identifying characteristic adapted to be unique compared to at least a second foreign material exclusion device, wherein the identification element is an RFID tag that is adapted to be detected by a reader of an RFID system, wherein the body comprises a polymer, a rubber, or a polymer foam or rubber foam, wherein the extraction member includes a loop or the extraction member and body form a loop for aiding in removal of the device from the cavity, and wherein the body is compressible and adapted to be capable of fitting into the cavity and thereafter re-expandable to hold the device in place via a compression fit of the body in an internal location in the cavity thereby sealing a first side of the cavity from a second side of the cavity.

2. The device according to claim 1, wherein the body includes a flame resistant or retardant coating or covering on at least a portion of a surface of the body.

3. The device according to claim 1, wherein said body is the polymer or rubber foam comprising polyester, polyethylene, polypropylene, or copolymers thereof, and wherein the body is from about 0.5 to about 12 inches thick.

4. The device according to claim 3, wherein the identification element is connected to an upper or lower surface of the body or to the extraction member.

16. The device according to claim 4, wherein the body has an upper surface, a lower surface, and a side adapted to contact the cavity, wherein the identification element is attached to the upper or lower surface of the body, and wherein the body is the polymer foam or rubber foam.

17. The device according to claim 16, wherein the identification element is attached to the lower surface of the body.

5. A foreign material exclusion system, comprising:

a first foreign material exclusion device adapted to seal a first side of a first cavity from a second side of the first cavity, wherein the first foreign material exclusion device includes an identification element that provides the first device with an identifying characteristic; and

a second foreign material exclusion device adapted to seal a first side of a second cavity from a second side of a second cavity, wherein the second foreign material exclusion device includes a second identification element which has a different identifying characteristic than the first foreign material exclusion device identification element, wherein the first and second identification elements comprise, independently, an RFID tag, each tag being detectable by a reader of an RFID system, wherein the first and second foreign material exclusion devices each have a body comprising a polymer, a rubber, a polymer foam, or a rubber foam, wherein the bodies of the first and second foreign material exclusion devices are compressible and adapted to be capable of fitting into the respective cavities and thereafter re-expandable to hold the first and second devices in place via a compression fit of the bodies in a location in the first and second cavities.

6. The device according to claim 5, wherein each body includes a flame resistant or retardant coating or covering on at least a portion of a surface, wherein the body is from about 0.5 to about 12 inches thick.

7. The device according to claim 5, wherein said body is the polymer or rubber foam comprising polyester, polyethylene, polypropylene, or copolymers thereof

8. The device according to claim 5, wherein the body has an upper surface, a lower surface, and a side adapted to contact the cavity, wherein the identification element is attached to the upper or lower surface of the body, wherein the body is the polymer foam or rubber foam.

9. A foreign material exclusion device assembly adapted to temporarily seal a cavity of an apparatus being assembled or repaired, said foreign material exclusion device assembly, comprising:

a resilient body, said body comprising a polymer, a rubber, or a foam thereof, said body being compressible and adapted to be placed in said cavity and thereafter re-expandable to hold the device in place via a compression fit of the body in a predetermined location between a first side and a second side of the cavity in order to seal said first side from said second side and prevent a foreign material from entering said first side to said second side, said body having a bore extending between a top surface and a bottom surface, and

a connection element in said body bore, said connection element having a bore extending between the body top surface and bottom surface and connected to a non-rotating guide rod or collet rod portion of a milling tool, the milling tool also comprising a milling head connected to the milling tool, and wherein the milling head is rotatably located between the milling tool and the foreign material exclusion device.

10. The device according to claim 9, wherein said device further includes an identification element that provides the device with an identifying characteristic adapted to be unique compared to at least a second foreign material exclusion device.

11. The device according to claim 10, wherein the identification element comprises indicia, a substrate with indicia, a bar code, or an RFID tag.

12. The device according to claim 9, wherein the connection element is substantially cylindrical and is connected to a central portion of the body.

13. The device according to claim 12, wherein the body is from about 0.25 to about 4 inches thick.

14. The device according to claim 13, wherein the body comprises the polymer foam or the rubber foam, wherein the foam has a density of about 1 to about 200 kg/m³, and wherein the connection element includes an o-ring or thread or a combination thereof that secures the device to the non-rotating rod of the milling tool.

15. The device according to claim 14, wherein the body on at least one surface includes a flame resistant or retardant covering or coating.

18. A method for temporarily sealing a cavity of a tube, pipe or orifice with a foreign material exclusion device to prevent foreign material from accessing a predetermined location in the cavity and tracking the device, comprising the steps of:

providing a foreign material exclusion device comprising a resilient body and an extraction member operatively connected to the body, wherein the device further includes an identification element that provides the device with an identifying characteristic adapted to be unique compared to at least a second foreign material exclusion device, wherein the identification element is an RFID tag that is adapted to be detected by a reader of an RFID system, wherein the body comprises a polymer, a rubber, or a polymer foam or rubber foam, wherein the extraction member includes a loop or the extraction member and body form a loop for aiding in removal of the device from the cavity,

removably securing the foreign material exclusion device in the cavity via a compression fit of the body in an internal location in the cavity thereby sealing a first side of the cavity from a second side of the cavity to prevent the passage of debris from the first side of the cavity to the second side, and

tracking the location of the device in the tube, pipe or orifice using the RFID system.

19. The method according to claim 18, wherein the RFID tag provides a signal that can be detected by the reader whereby the location of the foreign material exclusion device is tracked.

20. The method according to claim 18, wherein said body is the polymer or rubber foam comprising polyester, polyethylene, polypropylene, or copolymers thereof, wherein the body is from about 0.5 to about 12 inches thick, and wherein the RFID tag is connected to an upper or lower surface of the body or to the extraction member.