发明授权
- 专利标题: Quiet centrifugal fan
- 专利标题(中): 安静离心风机
-
申请号: US773280申请日: 1985-09-06
-
公开(公告)号: US4662830A公开(公告)日: 1987-05-05
- 发明人: Kenneth L. Pottebaum
- 申请人: Kenneth L. Pottebaum
- 申请人地址: MN Minneapolis
- 专利权人: Magnetic Peripherals Inc.
- 当前专利权人: Magnetic Peripherals Inc.
- 当前专利权人地址: MN Minneapolis
- 主分类号: F04D29/28
- IPC分类号: F04D29/28 ; F04D29/66 ; H02K7/20 ; H02K9/06 ; H05K7/20
摘要:
A fan is disclosed that contains cut-outs that reduce the noise levels. The fan is used to cool circuit boards.
公开/授权文献
- US5778308A Adaptive antenna matching 公开/授权日:1998-07-07
信息查询