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:
Aug. 16, 2016

Filed:

Oct. 25, 2013
Applicant:

Hubbell Incorporated, Shelton, CT (US);

Inventors:

Timothy Michael Kemp, Columbia, MO (US);

Shawn David Downey, Columbia, MO (US);

Kelly Suzanne Hawkins, Centralia, MO (US);

Assignee:

Hubbell Incorporated, Shelton, CT (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02D 5/56 (2006.01); E02D 5/80 (2006.01); E02D 5/72 (2006.01); E21B 7/26 (2006.01); E21B 10/42 (2006.01);
U.S. Cl.
CPC ...
E02D 5/56 (2013.01); E02D 5/72 (2013.01); E02D 5/801 (2013.01); E21B 7/26 (2013.01); E21B 10/42 (2013.01);
Abstract

A helical screw pile having a soil displacement device (lead displacement plate) on its shaft above at least one helical plate, which pulls the pile into the ground when the shaft is rotated. The lead displacement plate has a disk that carries at least two curved, axially extending bottom blades, which preferably extend beyond the disk periphery. The axial height of the blades preferably is greater than the axial pitch of the helical plate(s) divided by the number of blades. The top of the disk has an axially extending adapter ring that defines an annular seat for centering a tubular casing. Extension displacement plates can be used between extension shafts for centering additional tubular casings.


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