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US 4,828,441 AGranted
Locked threaded insert for high stress application
AssigneeUnited Technologies Corporation
InventorThomas Frasca
Life of this patent
Estimating the term…
Abstract
A threaded insert 22 is restrained from rotation by deformation into a recess 28. The recess 28 is only located in line with a directional stress pattern 34 in the receiving member 18 whereby stress concentration is avoided at high stress locations.
Claims5
A threaded insert arrangement for securing a threaded insert to a plate having a high directional stress therein, for later holding at attachment thereto comprising:
- a plate having a directional stress therein parallel to the surface of said plate;
- a cylindrical opening through said plate;
- an insert having a cylindrical body, an internal longitudinally extending threaded bore, and a shoulder extending radially beyond said cylindrical body for abutment with said plate;
- a restraining recess in said plate contiguous with said cylindrical opening and centered about a line which intersects the central axis parallel to said directional stress;
- and
- a portion of said insert located so as to be deformable into said restraining recess.
3 more elements
Dependencies are inferred from the claim text.