POLY SYSTEMS PTY LTD
POLY SYSTEMS PTY LTD Patent applications | ||
Patent application number | Title | Published |
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20110068142 | TOOL FOR DRIVING FASTENERS - A hand-held power tool powered by a gas combustion mechanism comprising a first combustion chamber, a second chamber within a driving cylinder having aft and fore ends. The first combustion chamber in fluid communication with the second chamber via the aft end, a fan assembly, a driver assembly having a piston and driver movable therewithin between the aft and fore end, and a drive motor operably connected to the driver assembly. In use, whilst the piston is at or near the fore end of the driving cylinder, the fan assembly introduces air into the chambers thereby at least partially pressuring the air there within, fuel gas is introduced into the combustion chamber to form an air/fuel gas mixture therein, the drive motor operably moves the piston to a position at or near the aft end thereby compressing the air/fuel gas mixture within the combustion chamber so that the air/fuel mixture is ignited to impart motion onto the and to facilitate the operation of the tool. | 03-24-2011 |
20080217372 | Fastener Driving Tool - A fastener driving tool comprising a tool nose through which a fastener is fired and a loading apparatus for introducing the fastener into the tool nose. The fastener is propelled by a gas combustion mechanism comprising a first priming cylinder having a first piston and an air intake fluidically connected via a first valve apparatus to a second delivery cylinder having a second piston. The first priming cylinder is fluidically connected to a fuel gas reservoir via a second valve apparatus. The first priming cylinder receives fuel from the reservoir and air through the air intake to form an air/fuel gas mixture therein. The first piston compresses the air/fuel gas mixture and transfers the air/fuel gas mixture to the second delivery cylinder via the first valve apparatus. The air/fuel mixture is ignited therein and urges the second piston towards the fastener and propels the fastener away from the tool nose. | 09-11-2008 |