System for confining lift cords in coverings for architectural openings
US-9222303-B2 · Dec 29, 2015 · US
Motorized window treatment
US8950461B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8950461-B2 |
| Application number | US-201213415084-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 8, 2012 |
| Priority date | Mar 11, 2011 |
| Publication date | Feb 10, 2015 |
| Grant date | Feb 10, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A motorized window treatment controls daylight entering a space through a window and includes a covering material, a drive shaft, lift cords received around the drive shaft and connected to the covering material, and a motor coupled to the drive shaft. It also includes a spring assist unit for the motor providing a torque that equals the torque provided by the weight on the lift cords at a position midway between fully-open and fully-closed positions, minimizing motor usage and conserving battery life. A photosensor for measuring the daylight outside the window and temperature sensors for measuring the temperatures inside and outside of the window may be provided. The position of the covering material is automatically controlled to save energy, or may also be controlled in response to an infrared or radio-frequency remote control.
First claim
Opening claim text (preview).
What is claimed is: 1. A motorized window treatment comprising: a headrail having first and second opposite ends; a covering material having a top end connected to the headrail, the covering material extending from the headrail to a bottom end; a motor drive unit including a motor and located in the center of the headrail; two drive shafts extending from both sides of the motor drive unit and rotatably coupled to the motor drive unit, such that rotations of the motor result…
Assignees
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Classifications
- E06B9/32Primary
Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
Fixed Constructions · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8950461B2 cover?
- A motorized window treatment controls daylight entering a space through a window and includes a covering material, a drive shaft, lift cords received around the drive shaft and connected to the covering material, and a motor coupled to the drive shaft. It also includes a spring assist unit for the motor providing a torque that equals the torque provided by the weight on the lift cords at a posi…
- Who is the assignee on this patent?
- Adams Jason O, Mierta Justin J, Mistarz Daniel W, and 11 more
- What technology area does this patent fall under?
- Primary CPC classification E06B9/32. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Feb 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).