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Class Information
Number: 175/277
Name: Boring or penetrating the earth > Cutter element laterally shiftable below ground (e.g., expansible) > With shifting mechanism spring biased to operative position > With separate latch > Latch holds mechanism retracted
Description: Apparatus in which the movable latch member acts to hold the laterally movable cutter element in an inoperative or noncutting position.

Sub-classes under this class:

Class Number Class Name Patents
175/278 Latch return shifting mechanism to inoperative position 1

Patents under this class:

Patent Number Title Of Patent Date Issued
3952818 Grooving bucket Apr. 27, 1976
3935912 Anchoring device and method for settling the device in the ground Feb. 3, 1976

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