STEPHEN ROBERT MEANS
Vehicle Board in Punxsutawney, PA
License number
Pennsylvania MV062956L
Category
Vehicle Board
Type
Vehicle Salesperson
Address
Address
Punxsutawney, PA 15767
Professional information
Multi-Sectional Percussive Drill Bit Assembly
US Patent:
7419017, Sep 2, 2008
Filed:
Nov 27, 2006
Appl. No.:
11/563350
Inventors:
Thomas A. Walker - Berlin PA, US
Richard Smith - Morrisville NY, US
Stephen R. Means - Punxsutawney PA, US
Richard Smith - Morrisville NY, US
Stephen R. Means - Punxsutawney PA, US
Assignee:
Keystone Drill Services, Inc. - Somerset PA
International Classification:
E21B 10/36
US Classification:
175413, 175414, 175415
Abstract:
A multi-sectional percussive drill bit assembly for drilling holes in earth formation primarily used in conjunction with a pneumatic percussive device. The drill bit assembly is comprised of an easily removable bit that is rotationally driven by a lug and pocket structure and axially limited in travel by means of retaining members.
Multi-Sectional Percussive Drill Bit Assembly
US Patent:
7389833, Jun 24, 2008
Filed:
Jun 7, 2006
Appl. No.:
11/422625
Inventors:
Thomas A. Walker - Berlin PA, US
Stephen R. Means - Punxsutawney PA, US
Stephen R. Means - Punxsutawney PA, US
Assignee:
Keystone Drill Services, Inc. - Somerset PA
International Classification:
E21B 10/36
US Classification:
175415, 175 57, 175382, 175413
Abstract:
A multi-sectional percussive drill bit assembly for drilling holes in earth formation primarily used in conjunction with a pneumatic percussive device. The drill bit assembly is comprised of an easily removable bit that is rotationally driven by a lug and pocket structure and axially limited in travel by means of retaining members.