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Class 172/580 - Power operated actuator


Subclass of Class 172 - Earth working
Definition: Apparatus comprising a power means for moving an implement
No. of patents: 4
Last issue date: 08/31/1999


NumberTitleIssue Date
5944116Apparatus for positioning a work object
An apparatus for positioning a work object relative to a primary support between first and second positions, the apparatus having a first mount adapted to be mounted on the work object; a second mount adapted to be mounted on the primary support; a linkin...
08/31/1999
4591003Offset harrow
Forward and rear gang disc harrow carriers are hingedly joined near corresponding ends by a vertical axis hinge structure. Near their other corresponding ends, the gang disc harrow carriers are interconnected through a four element linkage having an opera...
05/27/1986
4180135Hydraulic angling mechanism for disc harrow gangs
Hydraulic mechanism for varying the angular relationship between a pair of adjacent end-connected disc harrow gangs which uses the same power source that ordinarily is employed for raising and lowering the harrow frame structure as a power source to actua...
12/25/1979
4157877Apparatus for compacting subgrade and pavement materials
An apparatus for compacting subgrade and pavement materials during a road building operation, and which is characterized by the ability to selectively perform a plurality of distinct road rolling functions to thereby facilitate a road building operation. ...
06/12/1979
 
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