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:
Jun. 24, 2003
Filed:
Sep. 28, 2000
Applicant:
Inventors:
John Howard Parent, Brampton, CA;
James G. Pianosi, Toronto, CA;
Jamieson Edward Champ, Georgetown, CA;
Assignee:
Solinst Canada Limited, Georgetown, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 3/312 ;
U.S. Cl.
CPC ...
E21B 3/312 ;
Abstract
The borehole packer is for sealing the annular space around a pipe in a borehole. The packer is pre-manufactured, in-factory. To give the packer the rigidity it needs for handling and transport, the packer is built around an inner sleeve of rigid (metal) mesh. Alternatively, the packer may be built around a cardboard tube, which is discarded as the packer is assembled onto the pipe. When the packing material is bentonite, the bentonite may be compression-moulded into annular-rings, and the packer is built up from the rings.