Drill bit assembly with an adjustable hole saw
US6065909A · kind A · utility
Inventor
Key dates
| Filing date | Mar 23, 1999 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Mar 23, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/8973
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A multi-function drill bit assembly with slideably positionable hole saw comprising an elongate bit member, a reversible arbor member, and a hole saw member. The elongate drill bit member has a drilling portion and an attachment portion, with the drilling portion having a sharp cutting tip and the attachment portion having at least one flat surface running longitudinally across. The reversible arbor member has a cylindrical cavity extending axially therethrough with the attachment portion of the drill bit member being slideably disposed in the cylindrical cavity. The arbor member has a first portion and a cylindrical skirt portion, the cylindrical skirt portion extending outwardly from the first portion and being generally concentric with the cylindrical cavity. The cylindrical skirt portion has an exterior surface with a first set of threads running circumferentially across. The hole saw member has a cylindrical body with a closed end and an open end. A plurality of cutting teeth peripherally extend from the open end. The closed end has an aperture therethrough with a second set of threads extending circumferentially around the aperture, the second set of threads being axially ali…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.