Electric fan
Latest Hitachi, Ltd. Patents:
- ARITHMETIC APPARATUS AND PROGRAM OPERATING METHOD
- COMPUTER SYSTEM AND METHOD EXECUTED BY COMPUTER SYSTEM
- CHARGING SYSTEM AND CHARGING SYSTEM CONTROL DEVICE
- DEPENDENCY RELATION GRASPING SYSTEM, DEPENDENCY RELATION GRASPING METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM
- Moving body control system
Description
FIG. 1 is a front, top and right side perspective view of an electric fan, showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a top plan view thereof; and
FIG. 7 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
Other references
- Industrial Equipment News, May 1962, p. 59, Hunter Air Spread Fan, Pedastal Model, middle right side of page. Hardware Age, Mar. 1974, p. 26, Hitachi Fan 1, middle of page. Winnower Fan Co., Advertisement, Cooling (except Ceiling Fans).
Patent History
Patent number: D307470
Type: Grant
Filed: Mar 4, 1987
Date of Patent: Apr 24, 1990
Assignee: Hitachi, Ltd. (Tokyo)
Inventors: Toshiyuki Utsuki (Tachikawa), Shuichi Kouno (Tokorozawa), Kenichi Watanabe (Hitachi)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Law Firm: Antonelli, Terry & Wands
Application Number: 7/21,432
Type: Grant
Filed: Mar 4, 1987
Date of Patent: Apr 24, 1990
Assignee: Hitachi, Ltd. (Tokyo)
Inventors: Toshiyuki Utsuki (Tachikawa), Shuichi Kouno (Tokorozawa), Kenichi Watanabe (Hitachi)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Law Firm: Antonelli, Terry & Wands
Application Number: 7/21,432
Classifications