Apparatus and method for manufacturing lock washers
US5755824A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1996 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Oct 7, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R4/64
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An assortment of lock washers is produced from a method including the steps of (a) providing a plurality of blanks formed of generally planar resilient metal, some of the blanks having a different configuration from other of the blanks, each of the blanks including a central aperture, an outer periphery, a tab, and two locating holes spaced from the central aperture and spaced from each other a selected distance and at a selected orientation relative to the tab; (b) providing a tool having two locator pins and structure for bending a tab out of the plane of a blank; (c) orientating the two locating pins with the two locating holes of a selected blank; (d) actuating the tool to bend the tab of the selected blank out of the plane of the selected blank; and (e) repeating steps (c)-(d) for each of the blanks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.