POWER OPERATED TOOL SECURE

Brand Owner Address Description
DUCTMATER Ductmate Industries, Inc. 210 Fifth Street Charleroi PA 15022 Power Operated Tool to Secure a Connecting Frame to an End Portion of an Air Conveying Duct;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A DC power source unit supplies a DC voltage to a power tool through an adapter when a power switch of the tool is turned ON and also charges a battery pack used as an alternative power source of the tool when the power tool is not operated. In order to prevent a rush current from flowing in a switch interposed between a switching power source circuit and the battery pack when charging the battery pack is commenced, the switch is rendered OFF when the output voltage from the switching power source is greater than the battery voltage. Charging the battery is started upon once lowering the output of the switching power source to a level lower than the battery voltage.