One-piece blind nut assembly Patent #: 3948142
ApplicationNo. 06/351892 filed on 02/24/1982
US Classes:411/178, Nut is externally and internally threaded cylinder29/426.5, By applying force29/523, Radially expanding internal tube411/183, Nut assembled to substructure by plastically deformable region on nut411/38Bulged portion including bend line or reduced section
ExaminersPrimary: Smith, Gary L.
Assistant: Wilson, Neill R.
Attorney, Agent or Firm
International ClassesF16B 37/12 (20060101)
F16B 37/00 (20060101)
Foreign Application Priority Data1979-03-15 FR
AbstractAn insertable threaded sleeve provided with an outer screwthread and an inner screwthread for a screw, the outer screwthread being adapted to the screwthread of a tapped hole in an object. An extension adapted to be deformed by a buckling so as to be locked in the screwthread of the hole is provided with an outer knurling which improves the engagement thereof with the screwthread of the tapped hole and a flange on the outer end. The sleeve is replaceable and can be used in particular when the object is made from a soft material whereas the screw is made from a hard material. It may have if desired means for locking the screw against rotation.
Field of SearchNut is externally and internally threaded cylinder
Nut deforms wall of preformed opening in substructure during assembly
Both cooperating regions deformed
Nut assembled to substructure utilizing cooperating regions on both
Fastener having a deformable portion or deforms substructure (e.g., prong)
Nut assembled to substructure by plastically deformable region on nut
Bulged portion including bend line or reduced section
Bulged by axially contracting ends