IP Library Granted Patent US 7,320,524
Granted Patent B2
US 7,320,524 · App. 11/126,133 · Granted Jan 22, 2008

Projector and air filtration device thereof

Assignee: Benq Corporation
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Quick Facts
Patent No.
US 7,320,524
App. No.
11/126,133
Granted
Jan 22, 2008
Kind
B2
Abstract

An air filtration device for projector includes a holder, a filter, and a rack. The rack is movably disposed in the holder for supporting the filter. When the rack moves to a first position, the rack is received within the holder. When the rack moves from the first position to a second position, the filter is released from the rack for replacement.

Claims (29)

1. A projector, comprising:

a casing; and

an air filtration device, disposed within the casing and including:

a holder;

a filter; and

a rack movably disposed in the holder for supporting the filter; wherein when the rack moves to a first position, the rack is received within the holder, and when the rack moves from the first position to a second position, the filter is released from the rack for replacement wherein the rack further includes:

a first frame; and

a second frame, pivotally connected with the first frame; wherein the filter is disposed between the first frame and the second frame.

2. The projector according to claim 1 , wherein the holder includes a sliding track, and the rack includes a protrusion corresponding to the sliding track, so that the protrusion slides on the sliding track when the rack moves.

3. The projector according to claim 2 , wherein the sliding track includes an engaging part for fixing the protrusion when the rack moves to a first position.

4. The projector according to claim 1 , wherein the rack is separated from the holder in the second position for replacing the filter.

5. The projector according to claim 4 , wherein the first frame includes a pivot for connecting with the second frame, and the first frame rotates around the pivot and is separated from the second frame in order to replace the filter.

6. The projector according to claim 1 ,

wherein the first frame and the second frame are connected by way of reciprocally moving, and the filter is disposed between the first frame and the second frame.

7. The projector according to claim 6 , further comprising a pivot deposed in the first frame and a slot formed on the second frame and extending a predetermined distance along a direction for receiving the pivot, wherein when the rack moves to the second position, the pivot moves along the slot for the predetermined distance so that the first frame rotates around the pivot and is separated from the second frame to release the filter for replacement.

8. An air filtration device, comprising:

a holder;

a filter; and

a rack movably disposed in the holder for supporting the filter;

wherein when the rack moves to a first position, the rack is received within the holder, and when the rack moves from the first position to a second position, the filter is released from the rack for replacement wherein the rack further includes:

a first frame; and

a second frame, pivotally connected with the first frame; wherein the filter is disposed between the first frame and the second frame.

9. The air filtration device according to claim 8 , wherein the holder includes a sliding track, and the rack includes a protrusion corresponding to the sliding track, so that the protrusion slides on the sliding track when the rack moves.

10. The air filtration device according to claim 9 , wherein the sliding track includes an engaging part for fixing the protrusion when the rack moves to a first position.

11. The air filtration device according to claim 8 , wherein the rack is separated from the holder in the second position in order to replace the filter.

12. The air filtration device according to claim 11 , wherein the first frame includes a pivot for connecting with the second frame, and the first frame rotates around the pivot and is separated from the second frame in order to replace the filter.

13. The air filtration device according to claim 8 ,

wherein the first frame and the second frame are connected by way of reciprocally moving, and the filter is disposed between the first frame and the second frame.

14. The air filtration device according to claim 13 , further comprising a pivot deposed in the first frame and a slot formed on the second frame and extending a predetermined distance along a direction for receiving the pivot, wherein when the rack moves to the second position, the pivot moves along the slot for the predetermined distance so that the first frame rotates around the pivot and is separated from the second frame to release the filter for replacement.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 3, 2010
From: QISDA CORPORATION
To: BENQ CORPORATION
Reel/Frame 023888/0293 →
CHANGE OF NAME Recorded Feb 2, 2010
From: BENQ CORPORATION
To: QISDA CORPORATION
Reel/Frame 023880/0962 →
CORRECTIVE ASSIGNMENT TO CORRECT THE NAME OF THE SECOND ASSIGNEE. ALSO, CORRECT THE ADDRESS OF THE ASSIGNOR. PREVIOUSLY RECORDED ON REEL 016556 FRAME 0503. ASSIGNOR(S) HEREBY CONFIRMS THE SPELLING OF THE SECOND ASSIGNEE IS CHANG-CHIEN LI. THE ADDRESS OF THE ASSIGNOR IS GUEISHAN HSIANG, TAOYUAN SHIEN.. Recorded Oct 6, 2005
From: LEE, HSUAN-CHENG; LI, CHANG-CHIEN
To: BENQ CORPORATION
Reel/Frame 016624/0471 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 10, 2005
From: LEE, HSUAN-CHENG; LI, CHENG-CHIEN
To: BENQ CORPORATION
Reel/Frame 016556/0503 →
Priority Claims (1)
TW 93113203 A · May 11, 2004 · national
Continuity (1)
Related Publication 20050254021A1 · Nov 17, 2005