Resources Contact Us Home
Browse by Category: Main > Construction
Class Information
Number: 175/396
Name: Boring or penetrating the earth > Bit or bit element > Axially parallel side wall with transverse cuttings retaining portion
Description: Apparatus in which the bit includes a portion laterally spaced from the axis of the bit, and substantially parallel to said axis, and another portion substantially perpendicular to said first portion, said other portion extending from said first portion toward said axis, said portions being specifically described as adapted to lift cut material from the borehole.

Patents under this class:

Patent Number Title Of Patent Date Issued
8196679 Expandable reamers for subterranean drilling and related methods Jun. 12, 2012
6739412 Pile boring tools May. 25, 2004
5931235 Cutter head, boring jig and device and process for sea bottom boring Aug. 3, 1999
5797202 Vertical hole excavating machine Aug. 25, 1998
4765418 Borehole drill construction Aug. 23, 1988
4156471 Rubble and core removal apparatus May. 29, 1979
4122905 Hand auger Oct. 31, 1978
4023629 Toggle actuated underreamer May. 17, 1977

  Recently Added Patents
Adaptive flow for thermal cooling of devices
Stackable clothes drying apparatus
Magnetic memory element, driving method for same, and nonvolatile storage device
Regenerative power storage system mounted on DC electric railway car
Method and system for dynamically representing distributed information
Mobile communication device and method for providing positioning information
Process to extract quassinoids
  Randomly Featured Patents
Tension bars for roll press for paper making machine
Microscope stage
Condensed-ring thiophene derivatives and thienopyrimidine derivatives, their production and use
Composites of etheric phosphazene and metal oxides and the method of their formation
Precision molding of polymers
Filtering device
Expandable garment bag and hanger bar therefor
Vehicle-side connector
Method and apparatus for single pass two-color ink jet point of sale (POS) printing
Glass article having a pattern formed in its surface and method