Foreign material exclusion plug for structural threads with breakaway tab

Patent metadata

Field	Value
Publication number	US-12234854-B2
Application number	US-202318206704-A
Country	US
Kind code	B2
Filing date	Jun 7, 2023
Priority date	Aug 10, 2020
Publication date	Feb 25, 2025
Grant date	Feb 25, 2025

Abstract

A foreign material exclusion plug is disclosed. The foreign material plug includes a cylindrical body, a slot, and a breakaway tab. The cylindrical body includes an externally-threaded cylindrical structure. The slot is formed in the cylindrical body extending into the cylindrical body from a top surface of the cylindrical body. The breakaway tab is connected to the cylindrical body and extends outwards from the top surface.

First claim

What is claimed is:

1. A method for coupling a foreign material exclusion plug to a structural threaded coupler, comprising:
providing the structural threaded coupler including an internally threaded portion comprising an internally-threaded cylindrical structure;
providing the foreign material exclusion plug comprising a cylindrical body comprising an externally-threaded cylindrical structure having a top surface, a slot formed in the top surface of the cylindrical body extending into the cylindrical body, and a breakaway tab removably coupled to the top surface of the cylindrical body and extending outwards from the top surface of the cylindrical body, the breakaway tab being integrally formed with the cylindrical body as a unitary structure, wherein the breakaway tab is oriented such that the breakaway tab crosses over the slot and is integrally connected to the cylindrical body on opposing sides or ends of the slot; and
threading the cylindrical body into the internally threaded portion by applying a force to the breakaway tab such that the foreign material exclusion plug turns relative to the structural threaded coupler.

2. The method of claim 1 , further comprising breaking the breakaway tab off from the cylindrical body at a base of the breakaway tab after the cylindrical body is threaded into the internally threaded structure, thereby exposing the slot formed in the top surface of the cylindrical body.

3. The method of claim 2 , wherein the foreign material exclusion plug further comprises a flange radially extending from the cylindrical body at the top surface, the flange includes a thread boss facing at least partially in the cylindrical direction, an external thread of the externally-threaded cylindrical structure extends to the thread boss, the structural threaded coupler further comprises a flush mount portion adapted to receive the flange, and wherein
threading the cylindrical body into the internally threaded portion includes applying the force until the thread boss engages an internal thread of the internally threaded portion and locks the foreign material exclusion plug in place relative to the structural threaded coupler, and
breaking the breakaway tab off from the cylindrical body includes applying the force to the breakaway tab after the thread boss engages the internal thread.

4. The method of claim 1 , further comprising uncoupling the foreign material exclusion plug from the structural threaded coupler by inserting one of an end of a tool, a coin, and the breakaway tab broken off from the cylindrical body into the slot and applying a force thereto such that the foreign material exclusion plug turns relative to the structural threaded coupler.

Assignees

• Cons Nuclear Security Llc

Inventors

• Cole Robert N
• Shay Kevin P
• Renfro Austin L

Classifications

• F16B37/14 Primary

  Cap nuts; Nut caps or bolt caps · CPC title

• F16B31/025

  with a gauge pin in a longitudinal bore in the body of the bolt · CPC title

• F16B31/028

  with a load-indicating washer or washer assembly · CPC title

• B23P11/00

  Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  (connecting sheet metal or metal tubes, rods or profiles B21D39/00; riveting B21J; soldering, unsoldering, welding B23K; hand tools for connecting wire or strip B25B25/00; connecting metal parts by adhesives F16B11/00) · CPC title

• Y10T29/49963

  Threaded fastener · CPC title