Patent · US Active

Cup washer for a fastener

US7744324B2 · kind B2 · utility

3Cited by
12References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 20, 2005
Grant dateJun 29, 2010
Priority date
Expiry dateMay 4, 2027

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16B2200/97
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A washer for use with a fastener to join two components or plates includes a washer body having an inner portion and an outer portion joined by a connecting wall. The inner portion and the connecting wall form a cavity and the outer portion extends outwardly from the connecting wall to form a flange. The washer joins two plates fabricated from dissimilar material and minimizes stress in the joint. Additionally, the washer minimizes leakage through the joint and can be used with standard fasteners.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.