Advancing/retracting mechanism
USRE43040E1 · kind E1 · reissue
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2008 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | Jun 24, 2028 |
Classification
- Technology area (CPC —)General
Abstract
An advancing/retracting mechanism having a pair of cams is disclosed. The advancing/retracting mechanism includes a first cam, a second cam, and a barrel. The first cam includes an angled surface and a shoe, and the second cam includes an angled surface and a slider. The shoe engages with a helical surface in the barrel, and the slider engages with a straight surface in the barrel. The first cam travels a first distance along the longitudinal axis of the barrel from a first to a second state, and the second cam travels a second distance that is greater then the first distance along the longitudinal axis of the barrel from the first to the second state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.