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Shim-washer

  • US 3,136,206 A
  • Filed: 03/23/1962
  • Issued: 06/09/1964
  • Est. Priority Date: 03/23/1962
  • Status: Expired due to Term
First Claim
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1. AN APERTURED WASHER HAVING OPPOSITE SIDES AND COMPRISED OF SHEET MATERIAL, SAID SHEET MATERIAL HAVING A SUBSTANTIALLY UNIFORM THICKNESS, SPACED INDENTURES BEING FORMED IN ONE SURFACE OF THE SHEET MATERIAL OF SAID WASHER AND PROJECTING FROM THE OPPOSITE SURFACE THEREOF, SAID INDENTURES BEING SPACED FROM ONE ANOTHER ABOUT THE APERTURE IN SAID WASHER TO PROVIDE A UNIFORM LOAD SUPPORT ACROSS THE SURFACE OF SAID WASHER, EACH INDENTURE CONSISTING OF A TONGUE-LIKE MEMBER HAVING SEVERED SIDE AND FREE EDGE PORTIONS, THE FREE END PORTION OF EACH OF SAID MEMBERS HAVING AN UPPER SURFACE IN AT LEAST PARTIALLY OVERLAPPING RELATION IN A RADIAL DIRECTION AND ABUTTING THE ADJACENT PORTION OF SAID WASHER AND A LOWER SURFACE IN PARALLEL AND SPACED RELATION TO SAID ONE SURFACE OF THE SHEET MATERIAL OF SAID WASHER, SAID LOWER SURFACE THEREBY FORMING A CONTACT PAD SURFACE TO INCREASE THE YIELD STRENGTH AND MILITATE AGAINST NESTING OF SIMILAR WASHERS.

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