The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 1998
Filed:
Feb. 07, 1997
Applicant:
Inventor:
Robert J Berry, Gurnee, IL (US);
Assignee:
Illinois Tool Works Inc., Glenview, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
F02B / ;
U.S. Cl.
CPC ...
123 / ; 227 10 ;
Abstract
A combustion powered tool having a self-contained internal combustion power source constructed and arranged for creating a combustion for driving a driver blade to impact a fastener and drive it into a workpiece includes a housing having a main chamber enclosing the power source, a combustion chamber defined within the main chamber, an air flow enhancing device disposed in the combustion chamber for enhancing the flow of air therein, and a supplemental air flow enhancing device disposed externally of the combustion chamber and within the housing for forcing air past the combustion chamber as a cooling mechanism.