Brian Michael Lamb

US Patent:

8002160, Aug 23, 2011

Filed:

Aug 30, 2005

Appl. No.:

11/215794

Inventors:

John Frederick Larkin - Monterey CA, US
Brian Whitney Lamb - Menlo Park CA, US
Edward John Cooper - LaFayette CA, US

Assignee:

Black & Decker Inc. - Newark DE

International Classification:

B25C 1/08

US Classification:

227 10, 227 9, 123 46 A

Abstract:

A dual combustion fastener device implements a first combustion event, contained in a first combustion chamber portion to compress a combustible fuel/air mixture contained in a second combustion chamber portion, which is separated from the first combustion chamber portion by a piston including a driver for driving a fastener disposed in the driver's path of travel into a workpiece, in order to generally provide rapid driving power for securing a fastener disposed in a nose guide of the combustion fastener. Ignition of the second combustion event may be timed so that the second combustion event substantially occurs when the piston has achieved top dead center or the maximum compression of the combustible material in the second combustion chamber portion. Utilization of compressed combustible material may allow for the utilization of a piston having a small cross-sectional area in comparison to a typical combustion device while providing equal or greater driving force in a rapid manner.