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. 16, 1983
Filed:
Oct. 17, 1980
Applicant:
Inventors:
Hans Amann, Hanover, DE;
Jurgen Burkhardt, Hanover, DE;
Assignee:
Preussag Aktiengesellschaft, , DE;
Primary Examiner:
Int. Cl.
CPC ...
E02F / ;
U.S. Cl.
CPC ...
37 57 ; 37 58 ; 37195 ; 175-5 ;
Abstract
In a method and apparatus for the recovery of sediments from the sea bottom, a suction head is lowered into the sediment and continuously moved in the sediment. The suction head includes loosening means in the form of a pivot plate with blades which pivot relative to the suction head in response to continuous movement of the suction head to scrape the sediment to loosen it.