Tapping assembly
US5618137A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 1996 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Jan 23, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/561
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A tapping assembly comprising a main valve for selectively opening and closing a valve passageway, a support for holding the main valve adjacent a unit to be tapped, a drill for piercing a wall of that unit with the drill including a housing and a cutting element. A coupler is provided with left-hand threads and right-hand threads for easily connecting and disconnecting the drill housing from the main valve, thereby allowing easy replacement of a drill bit. Vents are provided both upstream and downstream of the main valve for permitting controlled removal of the contents of the unit with the main valve closed and for permitting controlled removal of any contents of the unit from the coupler with the main valve closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.