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:
Oct. 27, 1981
Filed:
Aug. 03, 1979
Applicant:
Inventor:
Dennis Nottingham, Anchorage, AK (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02D / ;
U.S. Cl.
CPC ...
405232 ; 405253 ;
Abstract
A method for facilitating the driving of piles in permafrost featuring the use of water filled pilot holes for raising the thermal regime of the surrounding permafrost to reduce the driving resistance of the permafrost and an improved H-pile shape with a tip having a reduced flange thickness to width ratio that is advantageously utilized in connection with such method.