Thread verification and chasing apparatus and method
US7343685B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jun 27, 2006 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Nov 7, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A thread checking apparatus and method for threaded bores in small plastic parts, in which a threaded tap is mounted to rotate on a fixed axis at a workstation, the workstation having guide structure associated with the rotating tap to slidingly engage and guide a part with a threaded bore onto a free outer end of the rotating tap. The rotating tap draws the part down the length of the tap in sliding, rotation-preventing engagement with the guide structure, until the part's threaded bore is fully verified and chased, at which point the part engages a reversing limit switch to automatically reverse the rotation of the tap and drive the chased and verified part back off the tap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.