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Title: Systems and methods for miniaturized drawbar extension springs

Abstract

Extension springs that can be manufactured to a small size with a precise free length are described herein. An extension spring comprises a first drawbar member and a second drawbar member that extend along a same direction. The extension spring further comprises a compression spring coil that surrounds respective portions of the draw bar members. At either end of the spring coil are positioned end caps that surround the drawbar members. The end caps provide flat surfaces on which the ends of the spring coil rest in a resting position of the extension spring. The end caps are held against bent ends of arms of the drawbar members by tension of the spring coil. When the drawbar members are drawn apart from one another, the end caps compress the spring coil. Compression of the spring coil causes forces that resist the motion of the drawbar members apart from one another.

Inventors:
; ;
Issue Date:
Research Org.:
National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1600269
Patent Number(s):
10,473,175
Application Number:
15/924,572
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
DOE Contract Number:  
NA0003525
Resource Type:
Patent
Resource Relation:
Patent File Date: 03/19/2018
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Wild, Ronald Lee, Boyce, Brad, and Morris-Eckart, Audrey. Systems and methods for miniaturized drawbar extension springs. United States: N. p., 2019. Web.
Wild, Ronald Lee, Boyce, Brad, & Morris-Eckart, Audrey. Systems and methods for miniaturized drawbar extension springs. United States.
Wild, Ronald Lee, Boyce, Brad, and Morris-Eckart, Audrey. Tue . "Systems and methods for miniaturized drawbar extension springs". United States. https://www.osti.gov/servlets/purl/1600269.
@article{osti_1600269,
title = {Systems and methods for miniaturized drawbar extension springs},
author = {Wild, Ronald Lee and Boyce, Brad and Morris-Eckart, Audrey},
abstractNote = {Extension springs that can be manufactured to a small size with a precise free length are described herein. An extension spring comprises a first drawbar member and a second drawbar member that extend along a same direction. The extension spring further comprises a compression spring coil that surrounds respective portions of the draw bar members. At either end of the spring coil are positioned end caps that surround the drawbar members. The end caps provide flat surfaces on which the ends of the spring coil rest in a resting position of the extension spring. The end caps are held against bent ends of arms of the drawbar members by tension of the spring coil. When the drawbar members are drawn apart from one another, the end caps compress the spring coil. Compression of the spring coil causes forces that resist the motion of the drawbar members apart from one another.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {11}
}

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Works referenced in this record:

Shock mitigating tether system
patent, January 1996


Damping spring for use in agricultural implements
patent, January 2008


Spring-actuated swing device
patent, April 1997


Sail-type windmill wheel
patent, June 2002


Bi-directional dampening device and method therefor
patent, February 2002