×

Lock Washer

  • US 20110027039A1
  • Filed: 07/28/2009
  • Published: 02/03/2011
  • Est. Priority Date: 07/28/2009
  • Status: Active Grant
First Claim
Patent Images

1. A lock washer for use with a nut and bolt, wherein the bolt has a threaded shank with a pitch thread, said lock washer comprising;

  • a planar washer body formed of a sheet of resilient metal having a selected thickness no less than the bolt pitch thread, said body having a central aperture and adapted to receive the shank of the bolt to which the nut is to be attached and locked;

    first and second lock tabs integral with said body radially outward of said central aperture, whereineach of said tabs has a radially inward facing, straight, free edge transverse to a radius of said body,each of said tabs is displaced by a spring bend to one side of the plane of said body, said washer body being etched to a selected lesser thickness in the area of the spring bend to provide a selected spring force when the tab is pushed down to the plane of said body.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×