Tie bolt employing differential thread
AssigneeUnited Technologies Corporation
InventorJames B. Coffin
Life of this patent
Estimating the term…
Abstract
A tie bolt for joining two parts together has a shaft. The shaft in turn has a primary thread for engaging a first part and a secondary thread for engaging a second part, wherein the primary thread and the secondary thread have different pitches. The tie bolt may be used to join together any two parts which are to be locked together to transmit torque.
Claims14
1-18. (canceled)
A tie bolt for joining two parts together comprising:
- a shaft;
- and
- said shaft having a primary thread for engaging a first part and a secondary thread for engaging a second part, wherein said shaft has a first end which fits into a slot in a tab attached to one of said parts,
- wherein said primary thread and said secondary thread have different pitches.
A system for joining parts which comprises a tie bolt having a shaft with a primary thread at one end of said shaft and a secondary thread at an opposite end of said shaft, wherein the primary and secondary threads have different pitches, said primary thread engaging a thread on a first part and said secondary thread engaging a thread on a second part, so that when said tie bolt is rotated said first part moves toward said second part, wherein said second part has a tab attached thereto with a slot in said tab and one end of said shaft engages said slot.
Dependencies are inferred from the claim text.