Moment relief barrel washer

Patent metadata

Field	Value
Publication number	US-9618031-B2
Application number	US-201514668209-A
Country	US
Kind code	B2
Filing date	Mar 25, 2015
Priority date	Apr 17, 2014
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A barrel washer comprising a convex portion, a concave portion, the concave portion configured to mate with the convex portion, such that the convex portion is only capable of rocking along a single axis within the concave portion. The barrel washer may be configured to prevent a bolt from rotating within the barrel washer. The barrel washer may be configured to relieve bending stress on the bolt as well as extraction of the bolt from the barrel washer. A surface of the concave portion may be coated with a lubricant. A surface of the convex portion may be coated in a lubricant. The barrel washer may be configured to couple a bolt to a flange that is couple to another flange. The convex portion may comprise a rocker. The barrel washer may be configured relieve bending stress on the bolt as a first flange moves relative to a second flange.

First claim

We claim:

1. A barrel washer comprising:
a convex portion having a convex surface that is curved about a single axis and a first planar surface opposite the convex surface; and
a concave portion having a concave surface that is curved about a single axis and a second planar surface opposite the concave surface, the concave portion configured to mate with the convex portion, such that the convex portion is only capable of rocking about a single axis within the concave portion.

2. The barrel washer of claim 1 , wherein the barrel washer is configured to prevent a bolt from rotating about its longitudinal axis within the washer.

3. The barrel washer of claim 1 , wherein the barrel washer is configured to relieve bending stress on the bolt.

4. The barrel washer of claim 1 , wherein the concave surface of the concave portion is coated with a lubricant.

5. The barrel washer of claim 1 , wherein the convex surface of the convex portion is coated in a lubricant.

6. The barrel washer of claim 1 , wherein the concave surface of the concave portion comprises a cylindrical surface.

7. The barrel washer of claim 1 , wherein the convex surface of the convex portion comprises a cylindrical surface.

8. The barrel washer of claim 1 , wherein the barrel washer is configured relieve bending stress on the bolt as a first flange moves relative to a second flange.

9. A barrel washer configured to prevent a bolt coupled to the barrel washer from rotating about its longitudinal axis within the barrel washer, the barrel washer comprising:
a convex rocker comprising a cylindrical convex portion and a first planar portion opposite the cylindrical convex portion;
concave base comprising a cylindrical concave portion and a second planar portion opposite the cylindrical concave portion, the cylindrical convex portion configured to mate with the cylindrical concave portion to rock about a single axis such that the bolt is unable to rotate about its longitudinal axis within the barrel washer.

10. The barrel washer of claim 9 , wherein a surface of the convex rocker is coated with a lubricant.

11. The barrel washer of claim 9 , wherein a surface of the concave base is coated in a lubricant.

12. The barrel washer of claim 9 , wherein the washer is configured to couple a bolt to a first flange and a second flange that are capable of changing orientation relative to one another.

13. The barrel washer of claim 9 , wherein the barrel washer is configured to receive the bolt.

14. The barrel washer of claim 9 , wherein the concave base comprises an aperture.

15. A system for preventing a bolt from rotating about its longitudinal axis within a barrel washer, the system comprising:
a first flange;
a second flange;
a bolt that extends between the first flange and the second flange;
a cylindrical concave portion coupled to the first flange;
a cylindrical convex portion seated in the concave portion, the cylindrical concave portion and the cylindrical convex portion together preventing the bolt from rotating about a bolt axis as the first flange translates relative to the second flange, wherein at least one of the convex portion and the cylindrical portion is coated in a lubricant.

16. The barrel washer of claim 15 , wherein a surface of the convex portion is coated with a lubricant.

17. The barrel washer of claim 15 , wherein a surface of the concave portion is coated in a lubricant.

18. The system of claim 15 , wherein bolt is coupled at a first end to a first washer and at a second end to a second washer.

Assignees

• United Technologies Corp

Inventors

• Hyatt Thomas B
• Klinetob Carl Brian

Classifications

• F16B43/02

  with special provisions for engaging surfaces which are not perpendicular to a bolt axis or do not surround the bolt · CPC title

• F16B43/00 Primary

  Washers or equivalent devices; Other devices for supporting bolt-heads or nuts (circlips F16B21/18; {for indicating tensile load F16B31/02; forming a whole with the bolt or nut F16B33/00; locking bolts or nuts by means of a fixed plate or ring, or washer-like resilient plates F16B39/10, F16B39/24}) · CPC title