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

Icon_funbox Did You Know...

...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!

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 111/75 - Vibrating hopper


Subclass of Class 111 - Planting
Definition: Devices wherein the material is dispensed from a hopper
No. of patents: 2
Last issue date: 09/02/1997


NumberTitleIssue Date
5662053Guide adapted to fit on an electro-mechanical device for planting seeds
Many people like to plant a garden. The earth is prepared for receiving the seeds. A person can dispense the seeds into the earth. An even distribution of the seeds is difficult. The subject invention comprises a guide for holding seeds. One end of the gu...
09/02/1997
4155315Mobile spreader
A mobile spreader of the type drawn by a tractor includes a hopper mounted on a roller. The roller is provided with a jarring strip which imparts a jolt to the hopper on each revolution of the roller. This jolting action prevents bridging of the material ...
05/22/1979
 
Sign InRegister
Username  
Password   
forgot password?