Double flanged washer

• US 3,221,793 A
• Filed: 10/04/1963
• Issued: 12/07/1965
• Est. Priority Date: 10/04/1963
• Status: Expired due to Term

• Current Assignee: Charles E. Gutshall
• Original Assignee: Charles E. Gutshall
• Inventors: Gutshall, Charles E.
• Application Number:
  US04/313,890
• Time in Patent Office: 795 Days
• US Class Current: 411/155
• CPC Class Codes: F16B 39/24 by means of washers, spring washers, or resilient plates that lock against the object locking to the screw-thread F16B39/14 , F16B39/34, F16B39/36
• CPC Class Codes: Y10S 411/96 Friction

Claims

1. A ONE-PIECE WASHER MADE FROM A FOUR-SIDED REGULAR POLYGONAL BLANK OF SHEET MATERIAL COMPRISING AN ARCHED BODY PORTION HAVING AN APERTURE, A FLANGE DEFINED BY A PLANE PASSED PARALLEL TO THE EDGE OF THE SIDE OF SAID POLYGONAL BLANK AND DEFINING AN ACUTE ANGLE WITH THE AXIS OF SAID APERTURE, SAID FLANGE EXTENDING DOWNWARDLY FROM SAID BODY PORTION ON ONE ARCHED SIDE THEREOF AND INCLUDING A MARGINAL PORTION OF SAID WASHER, SAID FLANGE PRESENTING AN INCLINED AND RADIALLY INWARDLY CONCAVE SURFACE PORTION RELATIVE TO THE AXIS OF SAID ARCHED BODY PORTION APERTURE AND PRESENTING SAID MARGIN THEREOF FOR ENGAGEMENT WITH THE COMPLEMENTARY WORK SURFACE ON WHICH IT IS ADAPTED TO BE MOUNTED, AND A SECOND FLANGE EXTENDING UPWARDLY FROM AND ALONG THE FULL LENGTH OF SAID BODY PORTION ON THE MARGIN OPPOSITE TO SAID FIRST FLANGE AND PRESENTING WORK SURFACE ENGAGEMENT PORTIONS AT ITS JUNCTURE WITH SAID ADJACENT SIDES OF SAID POLYGONAL BLANK, SAID WASHER PROMOTING RELATIVELY EQUALIZED PRESSURE AGAINST A COMPLEMENTARY WORKPIECE THROUGH SAID MARGINAL AND ENGAGEMENT PORTIONS OF SAID WASHER AS SAID PORTIONS IMPINGE UPON SAID WORKPIECE.