Member Or Portion Thereof Located Between Substructure And Inwardly Facing Surface Of Bolt Head Or Nut Patents (Class 411/132)
- Engaging side wall of counterbore in substructure (Class 411/148)
- Plural, axially adjacent washers, or plural part washer (Class 411/149)
- Split ring having radially outwardly extending end (Class 411/151)
- Ends of split ring overlap in stressed condition (Class 411/152)
- Apertured plate of uniform thickness having undulating contact surfaces (Class 411/154)
- Apertured plate having arched sectional configuration (e.g., concavo convex) (Class 411/155)
- Split ring having opposed ends offset axially (Class 411/157)
- Closed loop having plural variations in the profile of a contact surface or a peripheral edge thereof (Class 411/160)