The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 02, 2007
Filed:
May. 12, 2004
Patrick Bermingham, Hamilton, CA;
Mark Triska, Ancaster, CA;
Michael Justason, Hamilton, CA;
Grant Bearss, Hamilton, CA;
David Hoover, Hamilton, CA;
Stefano Gabaldo, Hamilton, CA;
Tim Rosenberger, Hamilton, CA;
Patrick Bermingham, Hamilton, CA;
Mark Triska, Ancaster, CA;
Michael Justason, Hamilton, CA;
Grant Bearss, Hamilton, CA;
David Hoover, Hamilton, CA;
Stefano Gabaldo, Hamilton, CA;
Tim Rosenberger, Hamilton, CA;
Bermingham Construction Limited, Hamilton, CA;
Abstract
A pile driver comprises a hammer for impacting a pile, a velocity sensor for measuring the velocity at impact, and a control system for adjusting the hammer stroke in accordance with the readings from the velocity sensor so that the optimal impact energy is imparted to the head of the pile. Optionally, the system further comprises a pile driving analyzer (including at least one strain gauge and/or an accelerometer) mounted on the side of the pile itself to determine whether the impact loading on the pile is below the maximum allowable stress. If the pile driving analyzer senses an overload of stress on the pile, the control system will reduce the velocity of the subsequent hammer stroke so that it no longer exceeds the maximum allowable stress.