Asymmetrical stockbridge damper

Patent metadata

Field	Value
Publication number	US-9800039-B2
Application number	US-201414786620-A
Country	US
Kind code	B2
Filing date	Jul 23, 2014
Priority date	Jul 24, 2013
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

Abstract

An asymmetric Stockbridge damper including a clamp and two weights of unequal mass connected to the damper. The damper may further include one or two messenger strands connecting the weights to the clamp. The weights may be situated so that they are an unequal distance from the clamp. The damper may further include a base connected to the clamp, and the weights may be connected to the base. The weights may be bell-shaped. The weights may have smooth contours. The clamp may use a breakaway bolt. The clamp may be designed for high temperature conductor applications. The messenger strands may be made of a 19-strand cable. The messenger strands may be attached to end of the weights and flushed to those ends.

First claim

What is claimed is:

1. An asymmetric Stockbridge damper comprising:
a clamp;
a first weight connected to the clamp;
a second weight connected to the clamp; and
a messenger strand connecting the clamp and the first weight and connecting the clamp and the second weight, wherein a maximum length of the messenger strand from the clamp to a first distal end of the messenger strand connected to the first weight is different from a maximum length of the messenger strand from the clamp to a second distal end of the messenger strand connected to the second weight;
a base connected to the clamp, wherein the first weight and the second weight are connected to the base via the messenger strand,
wherein the first weight and the second weight each comprise a respective mass and a respective dimension,
wherein the mass of the first weight differs from the mass of the second weight,
wherein the clamp further comprises a water drain groove, and
wherein the first weight and the second weight each comprise a drain hole.

2. The asymmetric Stockbridge damper from claim 1 wherein the dimension of the first weight differs from the dimension of the second weight.

3. The asymmetric Stockbridge damper from claim 1 wherein at least one of the first weight dimension and the second weight dimension is bell-shaped.

4. The asymmetric Stockbridge damper from claim 1 wherein the clamp is configured to be used in high temperature conductor applications.

5. The asymmetric Stockbridge damper from claim 1 wherein the clamp further comprises a breakaway bolt.

6. The asymmetric Stockbridge damper from claim 1 wherein at least one of the first weight and the second weight further comprise respective outer surfaces, wherein the respective outer surfaces comprise smooth contour.

7. The asymmetric Stockbridge damper from claim 1 , wherein the messenger strand comprises the first distal end, the second distal end, and a central portion, wherein the central portion of the messenger strand is connected to the clamp, and wherein the first distal end of the messenger strand is connected to the first weight, and wherein the second distal end of the messenger strand is connected to the second weight.

8. The asymmetric Stockbridge damper from claim 7 wherein the central portion of the messenger strand is connected to the base.

9. The asymmetric Stockbridge damper from claim 1 , wherein the messenger strand comprises:
a first messenger strand comprising the first distal end and a second proximal end, wherein the first distal end is connected to the first weight and the second proximal end is connected to the clamp; and
a second messenger strand comprising a first proximal end and the second distal end, wherein the first proximal end is connected to the clamp and the second distal end is connected to the second weight.

10. The asymmetric Stockbridge damper from claim 9 wherein the second proximal end of the first messenger strand and the first proximal end of the second messenger strand are connected to the base.

11. The asymmetric Stockbridge damper from claim 1 wherein the messenger strand comprises a 19-strand steel cable.

12. The asymmetric Stockbridge damper from claim 1 wherein the first distal end of the messenger strand is flushed with the first weight, and wherein the second distal end of the messenger strand is flushed with the second weight.

13. An asymmetric Stockbridge damper comprising:
a clamp;
a first weight connected to the clamp;
a second weight connected to the clamp;
a messenger strand connecting the clamp and the first weight and connecting the clamp and the second weight; and
a base connected to the clamp, wherein the first weight and the second weight are connected to the base via the messenger strand,
wherein the first weight and the second weight each comprise a respective mass and the mass of the first weight differs from the mass of the second weight,
wherein a length between the clamp and a distal end of the first weight is different from a length between the clamp and a distal end of the second weight,
wherein the clamp further comprises a water drain groove, and
wherein the first weight and the second weight each comprise a drain hole.

14. The asymmetric Stockbridge damper of claim 13 , wherein the first weight and the second weight each comprise a respective dimension, and wherein the dimension of the first weight differs from the dimension of the second weight.

15. The asymmetric Stockbridge damper of claim 13 , wherein at least one of the first weight dimension and the second weight dimension is bell-shaped.

16. An asymmetric Stockbridge damper comprising:
a clamp;
a first weight connected to the clamp;
a second weight connected to the clamp;
a messenger strand connecting the clamp and the first weight and connecting the clamp and the second weight; and
a base connected to the clamp, wherein the first weight and the second weight are connected to the base via the messenger strand,
wherein a length between the clamp and a distal end of the first weight is different from a length between the clamp and a distal end of the second weight,
wherein the clamp further comprises a water drain groove, and
wherein the first weight and the second weight each comprise a drain hole.

Assignees

• Afl Telecommunications Llc

Inventors

• Quesnel Wayne

Classifications

• H02G1/02

  for overhead lines or cables · CPC title

• H02G7/14 Primary

  Arrangements or devices for damping mechanical oscillations of lines, e.g. for reducing production of sound {(damping spacers H02G7/125)} · CPC title