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
Luminescent substrate for liciferase
Mobile terminal including stellar body watching hookup communications function
Codeword-enhanced peer-to-peer authentication
Method and system for cooling of integrated circuits
Perception-based artifact quantification for volume rendering
Bessel beam plane illumination microscope
Case for electronic device
  Randomly Featured Patents
Apparatus and method for generating virtual sound source for monitoring the operating state of a fuel cell stack
Data communication method and data communication device and semiconductor device
Signal generating apparatus and method, recording apparatus and method, reproducing apparatus and method, recording/reproducing apparatus and method, computer program, and recording medium
Optical disk drive
Catchment device for machine parts and tools
DNA encoding the chemotactic cytokine III
Inbred corn line ZS1791
Expansion sleeve for applying precise circumferential stress
Indazole compounds and compositions thereof as JNK inhibitors and for the treatment of diseases associated therewith
Polymer compositions