Tightening device with collar
US8671525B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2009 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Apr 27, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/1443
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The collar has a roughly cylindrical metal band and a pair of ears projecting from this band and defining a tightening space between themselves. It also has a tightening device for pulling these ears towards each other. The ears have an extension which is bent around behind each ear away from the other ear and which has a hole for the tightening rod and the tightening device, this hole being lined up with a hole in the forward part of the same area ear. A bracing space is provided between the bent extension and this forward part. The holes of the extension and of the forward part each have an edge portion with a guard which extends into the bracing space and an edge portion without a guard which is aligned with the guard of the other hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.