Industrial fan
United States Patent D503789

Wang, Cheng Hsing (Taipei, TW)
Application Number:
Publication Date:
Filing Date:
Shih Li Machine & Hardware Co., Ltd. (Taipei, TW)
Primary Class:
International Classes:
(IPC1-7): 2304
Field of Search:
D23/370, 417/423.14, 417/423.8, 417/234, D23/383
View Patent Images:
US Patent References:
D482772Portable air circulatorNovember, 2003DooleyD23/383
4954049Air circulation deviceSeptember, 1990Armbruster417/234
4483664Portable power device, light and fanNovember, 1984Armbruster417/234
4424006Combined power device, light and fanJanuary, 1984Armbruster417/234

Primary Examiner:
Lichtenstein, Lisa
Attorney, Agent or Firm:
Troxell Law Office, PLLC
1. The ornamental design for an industrial fan, as shown and described.


FIG. 1 is a perspective view of an industrial fan illustrating my design.

FIG. 2 is a front side elevational view thereof;

FIG. 3 is a rear side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.