Electrically dual powered window covering assembly
US10895105B1 · kind B1 · utility
Inventor
Key dates
| Filing date | May 5, 2017 |
| Grant date | Jan 19, 2021 |
| Priority date | — |
| Expiry date | Aug 31, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/3222
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An electrically dual motor powered window cover assembly operational on a single shaft supporting an extendable and retractable window covering, control motor, a slave motor, two cord spools, two cords, a stop assembly and a power cable wired with reverse polarity between the control and slave motors. An offset gearbox may be included to offset the reverse rotation of the slave motor to allow the control and slave motors to be wired with the same polarity. A pair of lifting gear boxes may be mounted to the shaft proximal opposite ends of the shaft to assist in the lifting of a heavier window covering. The assembly may include a wireless remote control transmitter for operating the two DC motors and electrical and mechanical circuitry adapted to store positional information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.