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.

Date of Patent:
May. 29, 2018

Filed:

Jun. 22, 2015
Applicant:

Mac & Mac Hydrodemolition Inc., Surrey, British Columbia, CA;

Inventors:

Gerard J. MacNeil, Surrey, CA;

David B. MacNeil, Surrey, CA;

Gordon MacNeil, Surrey, CA;

Vernon Bose, Surrey, CA;

Jesse MacNeil, Surrey, CA;

Brett MacNeil, Surrey, CA;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04G 3/30 (2006.01); E04G 23/08 (2006.01); E21C 25/60 (2006.01); E04G 3/28 (2006.01);
U.S. Cl.
CPC ...
E04G 23/081 (2013.01); E04G 3/30 (2013.01); E04G 2003/286 (2013.01); E21C 25/60 (2013.01);
Abstract

A steeply inclined surface is hydrodemolished by providing a staging platform and a rig that includes a base frame defining a planar footprint within the frame. The rig is suspended from the platform by a cable such that frame is coplanar with the surface and the incline of the surface causes the rig to lean against it. Rails are provided on the surface to restrain spurious lateral movement of the rig. The rig is positioned on the surface and nozzles mounted on a trolley within a travelling carriage on the frame travel in two dimensions to hydrodemolish the surface within the footprint. The rig is moved vertically along the rails and laterally along the platform to reposition the rig to work a new section of the surface in conjunction with other rails that are also mounted on the surface.


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