Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 172/618
Name: Earth working > Plural relatively movable tools > Tools assume different angularity for opposite draft
Description: Apparatus in which the earth working elements or tooth bars pivot about a horizontal transverse axis to different working angles when draft force is applied to the apparatus in opposite directions and including means to limit the movement of the elements or tooth bars to a particular angularity in both directions.










Patents under this class:

Patent Number Title Of Patent Date Issued
5044449 Flex tine soil mulcher Sep. 3, 1991
4262752 Ground wheel and plowing implement connected thereto for filling wheel tracks Apr. 21, 1981
4252198 Ground levelling attachment for tractors Feb. 24, 1981
4220211 Harrow with tine stop therefor Sep. 2, 1980
4018255 Tree saw Apr. 19, 1977
3976145 Finish tools with mounting bracket therefor Aug. 24, 1976











 
 
  Recently Added Patents
Cytokine receptors associated with myelogenous haematological proliferative disorders and uses thereof
Mobile communication device and method for providing positioning information
Rewarding independent influencers
Data driver and liquid crystal display device using the same
Method and system for security authentication of radio frequency identification
Illumination apparatus for microlithography projection system including polarization-modulating optical element
Systems and methods for managing fleet services
  Randomly Featured Patents
Nonvolatile memory device made of resistance material and method of fabricating the same
Leveling
Electronic door lock
Multilayered film
Propeller shield apparatus for trolling motor
Spray apparatus
Transom plug removal device and method
Automatic exchanger for peritoneal dialysis
Spot welded stainless steel aircraft firewall conduit
Abrasive articles and method of making the same