Frequency inverter
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Description
FIG. 1 is a front, top and right side perspective view of a frequency inverter showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a top plan elevational view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a rear elevational view thereof; and,
FIG. 7 is a rear, bottom and left side perspective view thereof.
Referenced Cited
Patent History
Patent number: D343382
Type: Grant
Filed: Mar 2, 1992
Date of Patent: Jan 18, 1994
Assignee: Hitachi, Ltd. (Tokyo)
Inventors: Shigehisa Hagura (Kokubunji), Toshihiko Wada (Musashimurayama), Tadao Shimotsu (Sakura), Norinaga Suzuki (Funabashi)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Joel Sincavage
Law Firm: Antonelli, Terry, Stout & Kraus
Application Number: 7/843,090
Type: Grant
Filed: Mar 2, 1992
Date of Patent: Jan 18, 1994
Assignee: Hitachi, Ltd. (Tokyo)
Inventors: Shigehisa Hagura (Kokubunji), Toshihiko Wada (Musashimurayama), Tadao Shimotsu (Sakura), Norinaga Suzuki (Funabashi)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Joel Sincavage
Law Firm: Antonelli, Terry, Stout & Kraus
Application Number: 7/843,090
Classifications
Current U.S. Class:
Transformer, Rectifier Or Casing Therefor (3) (D13/110)