Ingersoll-rand Industrial U.s., Inc.

Justin T Chellew

Nicholas Garibaldi

Kevin M Purdy

Warren Andrew Seith

Joshua Odell Johnson

Mark Templeton McClung

Madan Kumar Mandal

Scott D Price

Dennis Naksen

Vairavasundaram Swaminathan

Mark T Mcclung

An impact wrench is provided with a battery to power the motor. The impact wrench provides improved portability since the impact wrench does not need to be connected to an electrical extension cord or a pneumatic hose. The output drive, motor, batteries and main handle may be aligned along the axial direction of the tool. The batteries may be located between the motor and the main handle.

Battery powered impact wrench

Impact tool

An impact tool has an anti-topping mechanism ('ATM') adapted to reduce the rotational frictional force between the contact surfaces of the hammer and anvil to prevent topping. If topping still occurs, the ATM quickly breaks the topped condition. The ATM may reduce the rotational frictional torque between the hammer and anvil of an impact mechanism or provide increased the rotational friction acting on the anvil from adjoining elements of the tool thus tending to hold the anvil (by heightened rotational friction) while the hammer can be broken free. ATM mechanisms include hammer and jaw surfaces angled at interface points; stepping either the hammer or anvil jaw surfaces so that only the innermost portions interact; rounding or crowning either or both of the anvil and hammer jaw surfaces so minimal portions of the jaws are ever topped; and software-controlled detection and breaking of a topped condition. In torque-controlled impact tools, these mechanisms decrease the risk of accuracy or repeatability issues.

Anti-topping impact tool mechanism

The present invention provides a single-piece printed circuit board heat sink and encapsulation device configured to efficiently dissipate heat away from the printed circuit board, along with associated methodology for dispersing heat from a printed circuit board.

Heat sink tray for printed circuit boards

A power tool is provided. The tool has a housing containing an internal drive system that drives an output member that engages a workpiece and exerts mechanical force thereupon. A force sensor and a positional sensor are operatively connected to the drive system to sense characteristic variables of the drive system during engagement of the workpiece. A light unit is positioned on a front end and a top portion of the housing so as to be able to direct light of various colors onto the workpiece. A control unit is operatively connected to the drive system and the light unit so as to control the light unit based on the characteristic variables of the drive system measured by the sensors. The light unit may illuminate a colored light on the workpiece depending on whether or not the workpiece was determined to be fastened according to predetermined specifications.

Part illumination status lights

Growing community of inventors

Bethleham, PA, United States of America

Justin T Chellew