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Title: Helix coupling

A coupling for connecting helix members in series, which consists of a pair of U-shaped elements, one of which is attached to each helix end with the "U" sections of the elements interlocked. The coupling is particularly beneficial for interconnecting helical Nitinol elements utilized in thermal actuators or engines. Each coupling half is attached to the associated helix at two points, thereby providing axial load while being easily removed from the helix, and reusable.
Inventors:
Issue Date:
OSTI Identifier:
7021890
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-116062
Patent Number(s):
US 4824276; A
Application Number:
PPN: US 6-359973
Contract Number:
AC05-78OR06028
Resource Relation:
Patent File Date: 19 Mar 1982
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; COUPLINGS; DESIGN; NITINOL; JOINING; NITINOL HEAT ENGINES; HELICAL CONFIGURATION; SHAPE MEMORY EFFECT; ALLOYS; CONFIGURATION; ENGINES; FABRICATION; HEAT ENGINES; NICKEL ALLOYS; TITANIUM ALLOYS; 330000* - Advanced Propulsion Systems