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US007535197B2
(12) United States Patent
Huang
(io) Patent No.: (45) Date of Patent:
US 7,535,197 B2 May 19, 2009
(54) RECHARGEABLE ELECTRICAL TOOL AND BATTERY CHARGER THEREFOR
(75) Inventor: Wen-Hai Huang, Taichung (TW)
(73) Assignee: Mobiletron Electronics Co., Ltd.,
Taichung Hsien (TW)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 390 days.
(21) Appl.No.: 11/404,860
(22) Filed: Apr. 17, 2006
5,035,024 A *
6,023,147 A *
* cited by examiner
Primary Examiner—Edward Tso
(74) Attorney, Agent, or Firm—Bacon & Thomas, PLLC
An electrical tool assembly includes a battery-operated electrical tool, which has a housing and a charging terminal mounted in an insertion portion of the housing, and a charger, which has a receptacle fitting the contour of the insertion portion for the insertion of the insertion portion in a predetermined direction, a charging terminal for receiving the charging terminal of the electrical tool to charge the rechargeable battery of the battery-operated electrical tool, and a recessed seat for holding a body of the housing of the electrical tool in position upon insertion of the insertion portion into the receptacle.
8 Claims, 5 Drawing Sheets
