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:
Aug. 24, 1976
Filed:
Mar. 28, 1975
Applicant:
Inventor:
Joost Werner Jansz, The Hague, NL;
Assignee:
Hollandsche Beton Groep N.V., Rijswijk, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02D / ; F01N / ;
U.S. Cl.
CPC ...
61 535 ; 173D / ; 181 / ; 181 / ;
Abstract
Noise radiated into the atmosphere from a pile during pile-driving is inhibited by a tubular cover of flexible material having internal dimensions sufficient to pass, with an intervening air space, over a pile to be driven and an extended length sufficient to enclose a pile over its entire length, said cover being suspended from a hammer driving unit or a pile cap and being axially collapsible to reduce its length as the hammer driving unit or pile cap moves downwards while a pile enclosed in the cover is being driven into the ground.