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

Icon_funbox Did You Know...

...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!

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 477 - Interrelated power delivery controls, including engine control

RSS Feeds for this Class: Rss Patents   Rss Applications   What is RSS?
227 Subclasses


Subclasses list

Definition

This is the class for structure wherein operation of an engine* either regulates or is regulated by the operation of a clutch*, a gear transmission*, or a brake*.

Lines with other classes and within this class

This class was formed from patents in previously existing Classes 74 and 192 related to interrelated controls between an engine and a transmission, clutch, or brake. Therefore the line between this and other classes is the same as between Class 74 and Class 192 and other classes.
 
Sign InRegister
Username  
Password   
forgot password?