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

Icon_funbox Famous Patents

The first commercial microwave oven was nearly 6 feet tall and weighed in at 750 pounds.

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 238/219 - Rail-head insert


Subclass of Class 238 - Railways: surface track
Definition: The abutting rail-heads are grooved or recessed to receive
No. of patents: 2
Last issue date: 12/01/1981


NumberTitleIssue Date
4303276Conveyor chute for chain scraper conveyors
A conveyor chute for chain scraper conveyors, comprises, a plurality of chute sections joined together with a clearance therebetween for free motion. Each of the sections includes a guide plank having a reinforcing plate portion adjacent a respective end ...
12/01/1981
4047600Continuous junction between aluminum conductor rails
A smooth junction is provided between aluminum conductor rails at the power collection surface by the provision of a wedge shaped insert the geometry of which corresponds to that of the gap between the rails. On expansion of the rails the insert is pushed...
09/13/1977
 
Sign InRegister
Username  
Password   
forgot password?