US 11,702,901 B1
Top pot assembly
Grant Pruitt, Fort Smith, AR (US); and Cris Braun, Van Buren, AR (US)
Assigned to PRUITT TOOL & SUPPLY CO., Fort Smith, AR (US)
Filed by PRUITT TOOL & SUPPLY CO., Fort Smith, AR (US)
Filed on Sep. 13, 2021, as Appl. No. 17/473,970.
Application 17/473,970 is a continuation in part of application No. 16/997,469, filed on Aug. 19, 2020, granted, now 11,118,420.
Application 16/997,469 is a continuation of application No. 16/550,013, filed on Aug. 23, 2019, abandoned.
Application 16/550,013 is a continuation of application No. 15/050,206, filed on Feb. 22, 2016, granted, now 10,392,891, issued on Aug. 27, 2019.
Application 15/050,206 is a continuation in part of application No. 14/076,096, filed on Nov. 8, 2013, granted, now 9,267,350, issued on Feb. 23, 2016.
Application 14/076,096 is a continuation of application No. 12/804,107, filed on Jul. 14, 2010, abandoned.
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 33/06 (2006.01)
CPC E21B 33/06 (2013.01) 10 Claims
OG exemplary drawing
 
1. An apparatus for securing a rubber within a rotating housing of a drilling assembly, the housing configured to accept a drilling string passing through the housing along a vertical axis, the apparatus comprising:
an attachment body configured to attach to the housing to secure the rubber within the housing, the attachment body having a top surface, a bottom surface, an interior edge, and an outer edge;
a central aperture of the attachment body allowing passage of the drilling string vertically through the attachment body,
an outer fastener aperture located radially inward from the outer edge of the attachment body, the outer fastener aperture accepting at least one fastener to attach the attachment body to the housing;
an inner fastener aperture located on the bottom surface of the attachment body, wherein the inner fastener aperture initiates on the bottom surface and extends vertically upward without passing vertically through the attachment body, the inner fastener aperture located radially inward from the outer fastener aperture, wherein the inner fastener aperture terminates prior to passing vertically through the attachment body such that at least a portion of the attachment body blocks access from a downward entry of a fastener into the inner fastener aperture to secure the rubber with the attachment body;
wherein the inner fastener aperture accepts the fastener inserted vertically upward into the inner fastener aperture, wherein the fastener inserts into the inner fastener aperture to secure the rubber with the attachment body, the fastener directly contacting the rubber to limit rotation of the rubber, wherein the fastener inserts vertically downward into the rubber;
wherein the fastener is a dowel, wherein the inner fastener aperture extends vertically upward from the bottom surface, wherein the inner fastener aperture terminates prior to reaching the top surface of the attachment body, wherein the top surface of the attachment body limits vertical movement of the dowel preventing the dowel from passing vertically upward through the inner fastener aperture.