Drive mechanism for barrier operator
US7878931B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 2005 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Mar 8, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2400/3013
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An electric motor driven barrier operator includes spaced apart frame plates for supporting the motor, an intermediate drive shaft and an operator final output shaft. The motor output shaft, intermediate shaft and final output shaft are mounted on bearings at fixed centers on the frame plates and the motor and intermediate shaft are interconnected by a stretchable flexible drive belt reeved over respective drive pulleys mounted on the motor output shaft and the intermediate shaft. The drive belt may be mounted on the pulleys and replaced without adjusting the position of the motor output shaft, the intermediate shaft or the operator output shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.