Fastener locking members

Patent metadata

Field	Value
Publication number	US-10683887-B2
Application number	US-201916268788-A
Country	US
Kind code	B2
Filing date	Feb 6, 2019
Priority date	Aug 27, 2015
Publication date	Jun 16, 2020
Grant date	Jun 16, 2020

Abstract

A locking member for a fastener, such as a nut or a collar, includes a shank portion and a flanged portion, a bore extending the shank portion and the flanged portion and including a first interior portion located within the shank portion and a containment cavity located within the flanged portion, and an inner wall defining the containment cavity. The containment cavity includes an inner diameter that is greater than an inner diameter of the first interior portion of the bore. The inner wall of the containment cavity includes one or a combination of flat/linear surfaces, concave surfaces, and convex surfaces.

First claim

What is claimed is:

1. A swage collar, comprising a first end, a second end opposite the first end, a shank portion extending from the second end to a location intermediate the first and second ends, a flanged portion extending from the shank portion and to the first end, a bore extending from the first end to the second end and including a first interior portion located within the shank portion and a containment cavity located within the flanged portion and proximate to the first end, and an inner wall defining the containment cavity, the shank portion being adapted to be swaged, the containment cavity including an inner diameter that is greater than an inner diameter of the first interior portion of the bore, wherein the inner wall of the containment cavity includes a first concave surface located proximate to the first interior portion, a second concave surface located proximate to the first end, a cylindrical surface intermediate and joining the first and second concave surfaces, and a conical surface joining the first concave surface with the first interior portion.

2. The swage collar of claim 1 , wherein the flanged portion includes an annular outer portion extending outwardly therefrom.

3. The swage collar of claim 1 , wherein the collar is made from steel.

4. The swage collar of claim 1 , wherein the collar is made from aluminum.

5. The swage collar of claim 1 , wherein the collar is made from a material chosen from the group consisting of a titanium alloy, a nickel-based alloy, a copper-based alloy, or a stainless steel-based alloy.

Assignees

• Arconic Inc

Inventors

• Rizza Gregory
• Haylock Luke
• Pinheiro Rodrigo

Classifications

• F16B5/01 Primary

  by means of fastening elements specially adapted for honeycomb panels · CPC title

• F16B4/004

  Press fits, force fits, interference fits, i.e. fits without heat or chemical treatment (F16B4/002 takes precedence) · CPC title

• F16B37/00 Primary

  Nuts or like thread-engaging members {(specially shaped for rotations by a tool F16B23/00)} · CPC title

• B64D45/02

  Lightning protectors; Static dischargers · CPC title

• F16B39/282 Primary

  Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts · CPC title