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. 30, 1977
Filed:
Apr. 30, 1976
Applicant:
Inventors:
Burlie R Bowen, Houston, TX (US);
Claud C Barrington, Houston, TX (US);
Thomas J Ames, Houston, TX (US);
Glen E Lochte, Houston, TX (US);
Assignee:
HydroTech International, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B28D / ;
U.S. Cl.
CPC ...
125 / ; 138 97 ;
Abstract
Method and apparatus for breaking concrete from a concrete coated pipe comprising; a frame mounted on the pipe; means supported by the frame for engaging the concrete to break the concrete from the pipe and means for driving the engaging means against the pipe to impart massive forces thereto exceeding the strength of the concrete to thereby break the concrete from the pipe.