Resources Contact Us Home
Browse by Category: Main > Construction
Class Information
Number: 175/303
Name: Boring or penetrating the earth > Below-ground (1) hammer, or (2) impact members > With releasable means to detachably retain telescoping members against axial reciprocation > Condition for release adjustable > Adjustable below ground
Description: Apparatus in which the adjustment may be effected while the device is in position to perform its intended function within the bore.

Patents under this class:

Patent Number Title Of Patent Date Issued
7281575 Field adjustable impact jar Oct. 16, 2007
7111678 Field adjustable impact jar Sep. 26, 2006
6988551 Jar with adjustable trigger load Jan. 24, 2006
4919219 Remotely adjustable fishing jar Apr. 24, 1990

  Recently Added Patents
System and methods for random parameter filtering
Progressively discovering and integrating services
Sensing during magnetic resonance imaging
Making transparent capacitor with multi-layer grid
Molecular hydrogen stores and hydrogen transfer reagents for hydrogenation reactions
Single check memory devices and methods
System and method for providing advertising content using a group training system
  Randomly Featured Patents
Brush speed sensing control for vacuum cleaner
Magnetic systems and methods for realizing spacecraft maneuvers
Wall-mounted file tray
Treadmill motor control
High-efficiency low distortion parallel amplifier
Utility lighter with disabling mechanism
Reconstituted silanol wax esters
Polishing implement for polishing shoes
Unified chassis for a two-way radio
Cyclic and heterocyclic N-substituted .alpha.-iminohydroxamic and -carboxylic acids