Alan Marshall (2 May 1902, Noorat, Victoria 21 January 1984, Melbourne) was an Australian writer, story teller and social documenter. His best known book, ...
Name / Title
Company / Classification
Phones & Addresses
Alan Marshall Owner
Grand Slam Amusement Parks & Places
9210 Trinity Dr, Lake In The Hls, IL 60156-1664 8478540022, 8478548709
Administrative Law (Judicial Review) Administrative Law (Merits Review) Alternative Dispute Resolution/Mediation Commercial Law Criminal Law/Intervention/Compensation Environment Inquests Licensing and Disciplinary Tribunals Planning and Local Government Probate/Wills/TFM Residential/Retail Tenancies Torts
ISLN:
922156749
Admitted:
1982
Us Patents
Percussion Drilling Assembly And Hammer Bit With Gage And Outer Row Reinforcement
Shantanu Swadi - Cypress TX, US Angelo Spedale - Cypress TX, US Charles Dewey - Houston TX, US Alan J. Marshall - Lost Creek WV, US
Assignee:
Smith International, Inc. - Houston TX
International Classification:
E21B 10/36
US Classification:
1754201
Abstract:
A hammer bit for drilling a borehole in earthen formations comprises a bit body having a bit axis and a bit face. The bit face includes an inner region extending from the bit axis to about 50% of the bit radius and an outer region extending from the inner region to the outermost radius. In addition, the bit comprises a plurality of gage cutter elements mounted to the bit face in a circumferential gage row in the outer region. Further, the bit comprises a plurality of adjacent to gage cutter elements mounted to the bit face in a circumferential adjacent to gage row in the outer region. The cutting profile of at least one cutter element in each row in the outer region radially overlaps with the cutting profile of at least one other cutter element in a different row in rotated profile view.
Percussion Drilling Assembly And Hammer Bit With Gage And Outer Row Reinforcement
Smith International, Inc. - Houston TX, US Angelo Spedale - Cypress TX, US Charles Dewey - Houston TX, US Alan J. Marshall - Lost Creek WV, US
Assignee:
Smith International, Inc. - Houston TX
International Classification:
E21B 10/36
US Classification:
1754201
Abstract:
A hammer bit for drilling a borehole in earthen formations. In an embodiment, the bit comprises a bit body having a bit axis and a bit face. The bit face includes an inner region extending from the bit axis to about 50% of the bit radius and an outer region extending from the inner region to the outermost radius. In addition, the bit comprises a plurality of gage cutter elements mounted to the bit face in a circumferential gage row in the outer region. Further, the bit comprises a plurality of adjacent to gage cutter elements mounted to the bit face in a circumferential adjacent to gage row in the outer region. The cutting profile of at least one cutter element in each row in the outer region radially overlaps with the cutting profile of at least one other cutter element in a different row in rotated profile view.