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

Icon_funbox Did You Know...

...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.

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 122/74 - Drop water firebox


Subclass of Class 122 - Liquid heaters and vaporizers
Definition: Devices having a drop water firebox so arranged that the
No. of patents: 1
Last issue date: 10/18/1983


NumberTitleIssue Date
4409926Horizontal sheel boiler
A horizontal shell boiler has a horizontal furnace section which communicates with a flue gas transfer section at its end which transfers the flue gases from the furnace section to flue tubes extending horizontally through the space between the furnace se...
10/18/1983
 
Sign InRegister
Username  
Password   
forgot password?