Resources Contact Us Home
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
Network-based dynamic encoding
Bread basket
Method for incubating the contents of a receptacle
Method for culturing lactic acid bacterium and method for producing fermented milk
Treatment of celiac disease with IgA
Method and system for modularized configurable connector system for ethernet applications
Coffee cup stationery tab
  Randomly Featured Patents
Rolling exercise device set
Gigabit passive optical network strict priority weighted round robin scheduling mechanism
Liquid crystal display and method for fabricating the same
FET gate structure and fabrication process
Apparatus for treating a patient by means of water sprays
Clamshell package including both permanent and resealable fastening structure
Torsional assisted multi-position cam indexer having controls located in rotor
Compressor device and control method for the same
Method for the automated design of decentralized controllers for modular self-reconfigurable robots
Preparation of 3-memory-4,5-methylenedioxybenzaldehyde