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:
Jul. 21, 1981
Filed:
Apr. 18, 1979
Applicant:
Inventor:
Joost W Jansz, deceased, late of The Hague, NL;
Assignee:
Hollandsche Beton Groep N.V., Rijswijk, NL;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02D / ;
U.S. Cl.
CPC ...
173112 ; 173D / ;
Abstract
Apparatus for under water pile driving comprises a pile hammer and a drive unit connected by high pressure hoses to the hammer. The hammer is guided for relative vertical movement within an auxiliary guide frame on top of which the drive unit is permanently attached, said frame being suspended from a hoisting device.