Device for effecting a seal against an underlying surface
US4662802A · kind A · utility
Inventor
Key dates
| Filing date | May 15, 1985 |
| Grant date | May 5, 1987 |
| Priority date | — |
| Expiry date | May 15, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/50
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A device for effecting a seal against an underlying surface (5) in conjunction with drilling a hole therein, comprising an inverted cup-shaped member (9,11) whose rim (23) is intended to sealingly abut the underlying surface around the site of the hole (3) to be drilled, and the bottom (11) of which remote from the underlying surface is provided with a hole (27) through which a drill (1) is able to pass in at least substantially sealing fashion in conjunction with a drilling operation. The inverted cup-shaped member includes a tubular, annular element (9), which constitutes a cup-wall element, and a plate-like cover member (11) which forms the bottom. The cover member (11) is removable and therewith exchangeable, and can be mounted on the annular element in an at least substantially sealing fashion in a number of mutually different rotational positions, and is provided with an excentric hole (27) for the drill (1). The annular element (9) is provided with a laterally extending arm element (13) which presents at its distal end a support (33) intended for co-action with the underlying surface (5). A suction attachment means (15) is arranged on the arm element (13) between the annular…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.