Portable power supply unit with AC-DC converter

Description

FIG. 1 is a front and right side perspective view of a portable power supply unit with AC-DC converter showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The rear surface of the unit forms no part of the claimed design.

The portable power supply unit with AC-DC converter of our new design is a portable power supply unit for converting AC power to DC power and supplying DC power to, for example, an arc welder or a plasma arc cutter.

Referenced Cited
U.S. Patent Documents
D264962 June 15, 1982 Fellmann
D276495 November 27, 1984 Sylvia
D280318 August 27, 1985 Barone
D311899 November 6, 1990 Lenzing et al.
D334560 April 6, 1993 Wilson
4295179 October 13, 1981 Read
4300087 November 10, 1981 Meisner
Other references
  • Sanrex Arc Friend (4 page brochure) (date prior to Jun. 1, 1994).
Patent History
Patent number: D377335
Type: Grant
Filed: Jun 1, 1995
Date of Patent: Jan 14, 1997
Assignee: Sansha Electric Manufacturing Company, Limited (Osaka)
Inventors: Masao Katooka (Kawanishi), Toru Arai (Kamigyo-ku), Shigeru Okamoto (Hirakata), Kenzo Danjo (Soraku-gun), Masaharu Tanaka (Osaka)
Primary Examiner: Joel Sincavage
Attorneys: William H. Murray, Robert E. Rosenthal
Application Number: 0/39,633
Classifications