Load disconnection lock
US8272598B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2010 |
| Grant date | Sep 25, 2012 |
| Priority date | — |
| Expiry date | Mar 28, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/45084
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A load disconnection lock having a locking device which is secured against unlocking by means of a safety device as long as the tensile load is not less than a predefined minimum value, and which unlocks automatically when the tensile load is less than the predefined minimum value. A second safety device is provided for the locking device and has a fluid-filled housing in which a piston is guided. The piston has a tensile load applied to it and has a hole as a flow channel for the fluid, such that the fluid can be exchanged between two housing subareas on both sides of the piston. The piston is connected to an activation slide which releases the locking device as soon as the piston has moved through a predetermined distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.