Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
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











 
 
  Recently Added Patents
Frame syncrhonization in orthogonal frequency-division multiplexing systems
Vehicle running control system
Method and apparatus for providing seamless call handoff between networks that use dissimilar transmission methods
Software self-checking systems and methods
Solid state lighting circuit and controls
Passive millimeter wave differential interference contrast polarimetry
Light irradiation element, image forming structure, and image forming apparatus
  Randomly Featured Patents
Endoscope in which a bend remaining in the insertion portion upon removal from storage is reduced
Optical crossbar switch
Site directed recombination
Channel structure for communication systems
Color filter substrate and fabricating method thereof
Non-toxic shot formulation and method of making
Ergonomically accessible airflow control mechanism for a register
Hydraulic screw press drive
Method for the fabrication of multicolored balls for a twisting ball display
Single magnet coaxial loudspeaker