COMBUSTION POWER SOURCE WITH BACK PRESSURE RELEASE FOR COMBUSTION POWERED FASTENER-DRIVING TOOL,申请号CA20092735399-传众专利搜索

COMBUSTION POWER SOURCE WITH BACK PRESSURE RELEASE FOR COMBUSTION POWERED FASTENER-DRIVING TOOL

申请公布号：CA2735399(A1)

申请号：CA20092735399

申请日期：2009.08.07

申请公布日期：2010.03.18

申请人：

ILLINOIS TOOL WORKS INC.

发明人：ZHAO, HANXIN;LARGO, MARC

分类号：B25C1/14;B25C1/08

主分类号：B25C1/14

摘要：A combustion tool includes a cylinder having a lower end provided with a resilient bumper, a piston dimensioned for reciprocation within the cylinder to impact the bumper at an end of the cylinder and having a driver blade depending therefrom for impacting fasteners. At least one back pressure release opening is disposed in the cylinder to be in alignment with the piston and to be closed by the piston when the piston impacts the bumper.