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Class Information
Number: 123/46SC
Name: Internal-combustion engines > Free piston > Single chamber; one piston
Description:










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8646671 Combustion chamber and cooling system for fastener-driving tools Feb. 11, 2014
8622272 Setting tool Jan. 7, 2014
8616162 Opposed free piston linear alternator Dec. 31, 2013
8613327 Fluid powered percussion tool Dec. 24, 2013
8602283 Gas combustion type driving tool Dec. 10, 2013
8601988 Free piston assembly and method for controlling a free piston assembly Dec. 10, 2013
8601999 Internal combustion engine Dec. 10, 2013
8596230 Hydraulic internal combustion engines Dec. 3, 2013
8561867 Gas combustion type fastener driving machine Oct. 22, 2013
8550321 Tool for driving fasteners Oct. 8, 2013
8534525 Gas combustion type fastener driving machine Sep. 17, 2013
8511264 Fuel supply and combustion chamber systems for fastener-driving tools Aug. 20, 2013
8485408 Gas combustion type driving tool Jul. 16, 2013
8479964 Dust collecting devices Jul. 9, 2013
8347832 Fuel supply and combustion chamber systems for fastener-driving tools Jan. 8, 2013
8336749 Single switched dual firing condition combustion nailer Dec. 25, 2012
8267299 Gas combustion-type driving tool Sep. 18, 2012
8220686 Actuator pin guide for a fastener driving tool Jul. 17, 2012
8205582 Exhaust check valve and piston return system Jun. 26, 2012
8191751 Combustion chamber distance control for combustion-powered fastener-driving tool Jun. 5, 2012
8151901 Impact device and method for generating stress pulse therein Apr. 10, 2012
8087394 Dual-level combustion chamber system, for fastener driving tool, having dual-level rotary valve mechanism incorporated therein Jan. 3, 2012
8042718 Fuel cell actuation mechanism for combustion-powered tool Oct. 25, 2011
8006879 Gas combustion type driving tool Aug. 30, 2011
7997249 Piston for internal combustion engine and internal combustion engine with the same Aug. 16, 2011
7980440 Combustion-engined setting tool Jul. 19, 2011
7946463 One way valve for combustion tool fan motor May. 24, 2011
7942297 Fan motor for combustion-powered tool May. 17, 2011
7931181 Combustion-type power tool with trigger control arrangements Apr. 26, 2011
7926690 Combustion powered driver Apr. 19, 2011
7918373 Combustion type power tool Apr. 5, 2011
7814871 Self-priming portable device Oct. 19, 2010
7798383 Internal-combustion gas-powered hand tool Sep. 21, 2010
7775305 Wheeled hopping robot Aug. 17, 2010
7770772 Jet pump cooling system for combustion-powered fastener-driving tools Aug. 10, 2010
7748586 Driving tool Jul. 6, 2010
7743955 Combustion type power tool having fan Jun. 29, 2010
7721927 Power drive nailing machine May. 25, 2010
7708177 Powder-actuated fastener-driving tool May. 4, 2010
7673779 Combustion chamber distance control combustion-powered fastener-driving tool Mar. 9, 2010
7634979 Combustion-powered linear air motor/compressor Dec. 22, 2009
7594599 Hand-held power tool Sep. 29, 2009
7591236 Venting check valve for combustion nailer Sep. 22, 2009
7546938 Fuel cell compartment for combustion-powered tool Jun. 16, 2009
7510105 Repetitive cycle tool logic and mode indicator for combustion powered fastener-driving tool Mar. 31, 2009
7497271 Method of operating a combustion -powered tool Mar. 3, 2009
7490582 Combustion type power tool having fin for effectively cooling cylinder Feb. 17, 2009
7487898 Combustion chamber control for combustion-powered fastener-driving tool Feb. 10, 2009
7484481 Combustion-type power tool having switch protection arrangement Feb. 3, 2009
7484648 Combustion-engined setting tool Feb. 3, 2009

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