# US 8,739,852 B2 · Accumulating wand

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- Number: US 8,739,852 B2
- Document ID: US8739852B2
- Status: Granted
- Kind: B2
- Application number: 13/530,175
- Filed: 2012-06-22
- Published: 2013-06-20
- Granted: 2014-06-03
- Earliest claimed: 2011-07-05
- Assignees: Hunter Douglas Inc.
- Applicants: Richard Anderson; Steven R. Haarer
- Inventors: Richard Anderson; Steven R. Haarer
- Web page: https://patentgrep.com/patent/US8739852B2

## CPC

- E06B 9/326: Details of cords, e.g. buckles, drawing knobs
- E06B: FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES (shades or blinds for greenhouses A01G9/22; curtains A47H; lids for car boots or bonnets B62D25/10; skylights E04B7/18; sunshades, awnings E04F10/00)

## Abstract

An accumulating wand includes a retraction mechanism which substantially conceals the drive cord.

## Claims

### Claim 1

A window covering, comprising:
a movable rail;
an extendable covering material connected to said movable rail and defining an extended position and a retracted position;
a drive cord functionally connected to said covering material;
a hollow wand body functionally connected to said drive cord, wherein pulling on said hollow wand body moves said covering material from one of said extended and retracted positions to the other of said extended and retracted positions;
a retracting spring inside said hollow wand body which retracts the drive cord into said hollow wand body;
a brake mounted on said hollow wand body so as to selectively prevent the spring from retracting the drive cord into said hollow wand body, said brake being normally disengaged to allow said spring to retract the drive cord into said hollow wand body, and said brake including an actuator which, when engaged by the user, causes the brake to prevent the spring from retracting the drive cord into said hollow wand body.

### Claim 2 (depends on 1)

A window covering as recited in claim 1, and further comprising a fixed rail and a releasable cord lock mounted on said fixed rail, said cord lock being mounted for releasably locking said drive cord relative to said fixed rail.

### Claim 3 (depends on 2)

A window covering as recited in claim 2, wherein said releasable cord lock includes a capstan mounted for rotation on said fixed rail, wherein said drive cord is wrapped around said capstan and wherein pulling said hollow wand body causes said capstan to rotate and raising said hollow wand body allows said drive cord to surge said capstan.

### Claim 4 (depends on 1)

A window covering as recited in claim 1, wherein, when the actuator is engaged by the user, it also causes the brake to prevent additional drive cord from being exposed outside of said hollow wand body.

### Claim 5 (depends on 2)

A window covering as recited in claim 2, wherein, when the actuator is engaged by the user, it also causes the brake to prevent additional drive cord from being exposed outside of said hollow wand body.

### Claim 6 (depends on 3)

A window covering as recited in claim 3, wherein, when the actuator is engaged by the user, it also causes the brake to prevent additional drive cord from being exposed outside of said hollow wand body.