Locking chuck
US8371779B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2011 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Aug 8, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/953
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A chuck including a body having a tail section defining an annular shoulder and a nose section having an axial bore and angularly disposed passageways intersecting the axial bore. An O-ring is disposed in the annular shoulder and a plurality of jaws is slidably positioned in the passageways. A nut is rotatably mounted on the body in engagement with threads on the jaws. A first sleeve and a second sleeve each define a gripping surface thereon and one of the first and second sleeves is axially reciprocal on the body. The one of the first and second sleeves defines an annular groove on an inner surface thereof having a first shoulder and a second shoulder. The O-ring is received in the groove such that axial motion of the one of the first and the second sleeve is limited by abutment of the O-ring with said first and second shoulders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.