Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 405/254
Name: Hydraulic and earth engineering > Foundation > Columnar structure (e.g., pier, pile) > With driving or cutting tip > Longitudinally ribbed
Description: Method or apparatus wherein the elongated member or driving tip is provided with a protruding ridge along its length or a portion thereof.

Patents under this class:

Patent Number Title Of Patent Date Issued
7556454 Irregularly surfaced H pile Jul. 7, 2009
7494299 Piling apparatus having rotary drive Feb. 24, 2009
7114886 Structural helical pile Oct. 3, 2006
7018139 Structural helical pile Mar. 28, 2006
6382879 Pile and method thereof May. 7, 2002
6264403 Pile and method of driving a pile Jul. 24, 2001
5797704 Pier foundation and method of installation Aug. 25, 1998
5295767 Stabilizer for an in situ column drilling apparatus Mar. 22, 1994
4986373 Post hole digger Jan. 22, 1991
4911581 Pre-cast concrete pile and method and apparatus for its introduction into the ground Mar. 27, 1990
4657441 Penetration conductor pipe drive shoe Apr. 14, 1987

  Recently Added Patents
Non-volatile semiconductor memory and data processing method in non-volatile semiconductor memory
Selecting one of a plurality of print modes based on pixel coverage of a document
Canine iPS cells and method of producing same
Data driver and liquid crystal display device using the same
Apparatus and method to simulate a power trip to a disk drive
Voltage generating system and memory device using the same
Feature management of a communication device
  Randomly Featured Patents
Prepayment wristband and computer debit system
Map database device, map display apparatus and recording medium capable of efficiently having and utilizing height data
System for automatically integrating a digital map system
Method and anastomotic instrument for use when performing an end-to-side anastomosis
Attachment for use with stockpiling barge and method of filtering runoff water therefrom
Method of fabricating high uniformity field emission display
Software/hardware partitioning program and method
Network data terminal and data printing method therefor
Housing for a central vacuum cleaner