Device for monitoring motion of a movable closure
US8037922B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2006 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Jul 28, 2027 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B9/68
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A device for monitoring motion of a movable closure arranged for travel between limit positions, comprising an absolute position encoder for identifying whether the closure is in one of a plurality of sectors of travel, a relative position encoder for monitoring the speed and relative position of the closure, and a drive means for operatively coupling the relative position encoder and the absolute position encoder to the closure, such that there is a fixed relationship between motion of the closure and movement of both encoders, wherein the absolute position encoder features an adjustment assembly comprising a first element and a second element, the first element being selectively adjustable in position relative to the second element to adjust the absolute position encoder without movement of the drive means or the relative position encoder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.