U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"Inventing is a combination of brains and materials. The more brains you use, the less material you need."

Charles Kettering

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 123/169G - Intensity in gap only


Subclass of Class 123 - Internal-combustion engines
No. of patents: 4
Last issue date: 11/13/2007


NumberTitleIssue Date
7293541Combustion-type power tool having ignition proof arrangement
A spark is shot between an ignition point of an ignition plug and an ignition ground. The spark is shot from an acute corner of a core of the ignition plug. A tip end of the core has an acute angle of not more than 45 degrees. With this arrangement, an emitting poin...
11/13/2007
5080083Discharge device and ignition system with series gap using discharge device
A discharge device of the present invention including a pair of electrodes opposingly disposed in a sealed tube is characterized by the provision of a conductive member surrounding one of the electrodes in the sealed tube. An ignition system with a series...
01/14/1992
4944280Separated circuit hot spark producing apparatus
A spark gap producing apparatus that introduces an auxiliary gap in the electrical path between the spark source and the spark plug of an internal combustion engine is disclosed. The spark apparatus can be permanently installed such that it maintains a re...
07/31/1990
 
Sign InRegister
Username  
Password   
forgot password?