[특허]Fan damper

Munters Corporation

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Fan damper

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F24F-013/08
미국특허분류(USC)	454/351; 454/353; 137/512.1; 137/527
출원번호	US-0017553 (2008-01-22)
등록번호	US-8414368 (2013-04-09)
발명자 / 주소	Hansen, Daniel G. Hause, Christopher Adam
출원인 / 주소	Munters Corporation
대리인 / 주소	Moyne, Mary M.
인용정보	피인용 횟수 : 5 인용 특허 : 14

초록

A damper assembly for use with an axial fan to prevent air from entering the discharge side of the fan when the fan is at idle. The damper assembly includes a damper door having multiple sections. The sections are able to pivot independently in response to the air flow created by the fan to minimize airflow resistance when the fan is operating.

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1. A damper assembly for a fan, which comprises: a) a first door pivotably mounted adjacent a discharge side of the fan and configured to pivot about a first axis, the first door having a first section and a second section with the first section able to pivot to an open position independent of the second section; andb) a second door pivotably mounted adjacent the discharge side of the fan and configured to pivot about a second axis, the second door having a first section and a second section with the first section able to pivot to an open position independent of the second section, the first and second doors essentially forming a plane in a closed position wherein in the open position, the first section of the first door is at an angle greater than 90° from the closed position of the first door and in an open position, the second section of the first door is at an angle of less than 90° from the closed position of the first door. 2. The assembly of claim 1 wherein in the open position, the first section of the second door is at an angle of less than 90° from the closed position of the second door and the second section of the second door is at an angle of greater than 90° from the closed position of the second door. 3. The assembly of claim 1 wherein a means for moving the first door into the closed position is connected to the first section of the first door and wherein a means for moving the second door into the closed position is connected to the second section of the second door. 4. The assembly of claim 3 wherein the second section of the first door has a tab adjacent the first section of the first door which contacts the first section of the first door and wherein the first section of the second door has a tab adjacent the second section of the second door which contacts the second section of the second door. 5. The assembly of claim 1 wherein the first door is pivotably mounted on an inner edge and the second door is pivotably mounted on an inner edge and wherein the inner edge of the first door is adjacent the inner edge of the second door. 6. The assembly of claim 1 wherein a frame is configured to be mounted adjacent the discharge side of the fan and wherein the first and second doors are pivotably mounted on the frame. 7. The assembly of claim 1 wherein the first and second doors are bisected so that the first section of each door is essentially equal in size and shape to the second section of each door. 8. The assembly of claim 1 wherein a seal is provided adjacent an outer edge of the doors and wherein the seal provides a seal between the discharge side of the fan and the doors. 9. A damper assembly for a fan, which comprises: a) a first door pivotably mounted adjacent a discharge side of the fan and configured to pivot about a first axis, the first door having a first section and a second section with the first section able to pivot to an open position independent of the second section; andb) a second door pivotably mounted adjacent the discharge side of the fan and configured to pivot about a second axis, the second door having a first section and a second section with the first section able to pivot to an open position independent of the second section, in the open position, the first section of the first door is in contact with the first section of the second door and the second section of the first door is in contact with the second section of the second door. 10. A damper assembly for a fan, which comprises: a) a first door pivotably mounted adjacent a discharge side of the fan and configured to pivot in a counter-clockwise direction about a first axis, the first door having a first section and a second section with the first section able to pivot to an open position independent of the second section; andb) a second door pivotably mounted adjacent the discharge side of the fan and configured to pivot in a clockwise direction about a second axis, the second door having a first section and a second section with the first section able to pivot to an open position independent of the second section. 11. The assembly of claim 10 wherein the first and second axes are parallel. 12. The assembly of claim 10 wherein the first and second axes are co-axial. 13. The assembly of claim 10 wherein the first and second axes are essentially perpendicular to a ground surface. 14. A damper assembly for a fan, which comprises: a) a frame configured to be mounted adjacent the discharge side of the fan;b) a first door pivotably mounted on the frame by a first rod, and configured to pivot about a first axis, the first rod having a first portion and a second portion, the first door having a first section connected to the first portion of the first rod and a second section connected to the second portion of the first rod, with the first section able to pivot to an open position independent of the second section; andc) a second door pivotably mounted on the frame by a second rod and configured to pivot about a second axis, the second rod having a first portion and a second portion, the second door having a first section connected to the first portion of the second rod and a second section connected to the second portion of the second rod with the first section able to pivot to an open position independent of the second section. 15. The assembly of claim 14 wherein each rod and each portion of each rod pivot independently. 16. The assembly of claim 14 wherein the rods are parallel and spaced apart and a seal is provided between the rods. 17. A damper assembly for a fan, which comprises: a) a frame configured to be mounted adjacent a discharge side of the fan;b) a first door pivotably mounted on the frame and configured to pivot about a first axis, the first door having a first section and a second section with the first section able to pivot to an open position independent of the second section;c) a second door pivotably mounted on the frame and configured to pivot about a second axis, the second door having a first section and a second section with the first section able to pivot to an open position independent of the second section; andd) a seal provided on the frame so that when the doors are in a closed position, an outside edge of the doors contacts the seal and provides a seal between the doors and the frame. 18. A damper assembly for a fan, which comprises: a) a first door having a semicircular shape pivotably mounted adjacent a discharge side of the fan and configured to pivot about a first axis, the first door having a first section and a second section with the first section able to pivot to an open position independent of the second section; andb) a second door having a semicircular shape pivotably mounted adjacent the discharge side of the fan and configured to pivot about a second axis, the second door having a first section and a second section with the first section able to pivot to an open position independent of the second section. 19. A damper assembly for a fan, which comprises: a) a first door pivotably mounted adjacent a discharge side of the fan and configured to pivot about a first axis co-axial with a vertical, center axis of the fan, the first door having a first section and a second section with the first section able to pivot to an open position independent of the second section; andb) a second door pivotably mounted adjacent the discharge side of the fan and configured to pivot about a second axis co-axial with the vertical, center axis of the fan, the second door having a first section and a second section with the first section able to pivot to an open position independent of the second section.

이 특허에 인용된 특허 (14)

이 특허를 인용한 특허 피인용횟수: 5

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특허 상세정보

Fan damper

초록

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이 특허에 인용된 특허 (14)

이 특허를 인용한 특허 피인용횟수: 5

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특허 상세정보

Fan damper

초록

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이 특허에 인용된 특허 (14)

이 특허를 인용한 특허 피인용횟수: 5

IPC 상위 출원인

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상세정보조회

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IPC 상세정보(version : 201201)

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