Articulated pre-skimmer mount
US8590639B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2011 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | May 27, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B21/07
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An articulated pre-skimmer mount for a pre-skimmer associated with a drill bit feed unit comprises a feed mounting arm mounted to the drill bit feed unit. A first end is configured for attachment to the drill feed unit and a second end includes a cylindrical mounting shaft and an axial positioning plate. An intermediate arm has a first end comprising a cylindrical sleeve mounted thereto. The cylindrical sleeve has an inner cylindrical opening configured for sliding engagement with the cylindrical mounting shaft and a mating plate configured for locking, face-to-face engagement with the axial positioning plate. A second end comprises a pre-skimmer mounting assembly configured for attachment to the pre-skimmer, wherein an axial positioning plate and a mating plate are operable to disengage, for rotation of the intermediate arm about an axis of the feed mounting arm for alignment of the pre-skimmer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.