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:
Jan. 29, 2008
Filed:
Jan. 19, 2005
Applicant:
Luke G. M. Gray, Waterloo, CA;
Inventor:
Luke G. M. Gray, Waterloo, CA;
Assignee:
Babcock & Wilcox Canada Ltd., Cambridge, Ontario, CA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B23P 19/02 (2006.01); B25C 1/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A explosive device is disclosed for collapsing an expansion-fit metal tube from within a hole of a metal plate of a boiler or the like. The device includes a connecting rod inserted into the tube and extending outwardly from top and bottom ends of the tube. The portion of the connecting rod extending out of the top end of the tube is encapsulated by a blast chamber containing an explosive charge. The portion of the connecting rod extending out of the bottom end of the tube is secured via a retaining plate held by a washer and nut threaded to the connecting rod.