Actuator
US7495359B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2004 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | Oct 2, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/1166
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In actuators where an electric motor, via a transmission, drives an activation element intended to cause movement of an adjustable element in the structure in which the actuator is incorporated, particularly within the furniture sector, hospital beds and sickbeds. The level of noise may be reduced in that at least the electric motor (6) is mounted in tightly fitting recess (12) in a block (11) of foam plastics or similar vibration/noise damping material. An additional reduction of vibrations/noise is achieved by inserting a claw coupling (9a, 9b) with a gasket of rubber or rubber-like material between the individual claws in the claw coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.