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:
Feb. 11, 2014

Filed:

Oct. 13, 2010
Applicants:

Gary L. Cochran, Colwich, KS (US);

Dennis Skraba, Inno, SC (US);

Inventors:

Gary L. Cochran, Colwich, KS (US);

Dennis Skraba, Inno, SC (US);

Assignee:

Coneqtec Corp., Wichita, KS (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21C 25/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A device and system for removing structures embedded in surrounding material is disclosed. Embodiments include a powered, expandable clamp attached to a rotating cutting tool for removing manholes from roadways. Select embodiments include anchoring a clamp to a manhole and using the manhole itself as leverage to move a cutting device through the surrounding material. Alternate embodiments allow an operator, working alone from a control station, to secure the manhole remover to the manhole, cut through the surrounding roadway, remove the manhole, and deposit the manhole at another location without requiring the operator to leave the control station. Further embodiments optionally include a depth gauge indicating the penetration depth of the cutting tool, an indicator reflecting the expanded state of the clamp, a pendulum mount allowing the clamp and drum to vertically orient using gravity, and/or the ability to attach to a host machine, such as a skid-steer loader.


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