Resources Contact Us Home
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
Print system
Watch chain
Method and a system for registering a 3D pre-acquired image coordinates system with a medical positioning system coordinate system and with a 2D image coordinate system
Image processing device, image processing method, and program
System, device and method for transrating file based assets
System and method for deriving cell global identity information
Image descriptor quantization
  Randomly Featured Patents
Apparatus and method for an authenticated electronic userid
Semiconductor device, method for manufacturing the same and method for evaluating the same
Synchronization circuit for a synchronous switching system
Magnetic memory device with reference cell for data reading
Device for directing a premises alarm panel to a backup radio network upon detection of use of the PSTN by another premises device
Support assembly for lamp swing arm
Printers and copiers with pre-transfer substrate heating
Laser thermal annealing to eliminate oxide voiding
Continuously variable transmission with control arrangement and method for preventing transmission belt slippage
Transdermal drug applicator and electrodes therefor