Hubert Penka Phones & Addresses
-
1175 Enterprise Rd, Ponca City, OK 74604 (580) 762-0964
Work
Position:
Construction and Extraction Occupations
Education
Degree:
Associate degree or higher
Emails
h***a@aol.com
Publications
Us Patents
Drill Bit And Cutter Having Insert Clusters And Method Of Manufacture
View pageUS Patent:
20040173384, Sep 9, 2004
Filed:
Mar 4, 2003
Appl. No.:
10/379015
Inventors:
Zhou Yong - Spring TX, US
Peter Davies - , US
Hubert Penka - Ponca City OK, US
Ernest Buford - Ponca City OK, US
Peter Davies - , US
Hubert Penka - Ponca City OK, US
Ernest Buford - Ponca City OK, US
Assignee:
Smith International, Inc. - Houston TX
International Classification:
E21B010/16
US Classification:
175/374000, 175/426000, 076/108200
Abstract:
Disclosed is a rolling cone cutter and drill bit employing multiple inserts retained as a cluster in an aperture in the cone cutter. Apertures in which the insert clusters are retained are multilobed apertures formed by intersecting bores formed in the cone steel. The apertures may also be created by forming spaced apart bores and milling regions of the cone steel that extends between the bores. The inserts in a cluster may be retained within the aperture to differing depths, may extend above the cone steel to differing extension lengths, and may have cutting portions having a variety of shapes. The inserts in a cluster may be made of different materials in order to optimize cutting duty. The bores forming the multilobed aperture may be parallel or skewed, and may create an aperture having a multilevel bottom surface so as to permit the insertion of an insert having a relatively large cutting surface in instances when the cone design would not otherwise permit the use of a cylindrical insert of the desired diameter.
Hardfaced Drill Bit Structures And Method For Making Such Structures
View pageUS Patent:
20020035895, Mar 28, 2002
Filed:
Jul 31, 2001
Appl. No.:
09/918745
Inventors:
Peter Davies - Ponca City OK, US
Dennis Bond - Ponca City OK, US
Hubert Penka - Ponca City OK, US
Cary Roth - Ponca City OK, US
Dennis Bond - Ponca City OK, US
Hubert Penka - Ponca City OK, US
Cary Roth - Ponca City OK, US
International Classification:
B21K005/04
US Classification:
076/108200, 076/108100
Abstract:
A method is disclosed for forming a drill bit structure to which a cutting element is to be affixed. The method includes applying a layer of hardfacing material to a basic bit structure, removing the layer of hardfacing material in a location to which the cutting element is to be affixed, and forming an attachment structure at the location. In one embodiment, the removing is performed by electrode discharge machining. In one embodiment, the basic bit structure is a roller cone, and the cutting element is an insert adapted to be interference fit within a socket in the roller cone.