Patents by Inventor Tony Lorger
Tony Lorger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10161188Abstract: The present invention is directed to a dynamic seal tube for use in pressurized fluid-driven down hole hammer drills. The dynamic seal tube is a tube that slides within the bore of the piston and the anvil portion of the drill bit and co-operatively acts to release different volumes of pressurized fluid from the lower chamber when the piston is in different predetermined positions.Type: GrantFiled: July 10, 2014Date of Patent: December 25, 2018Assignee: DRILLROC PNEUMATIC PTY LTD.Inventor: Tony Lorger
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Publication number: 20160153237Abstract: The present invention is directed to a dynamic seal tube for use in pressurized fluid-driven down hole hammer drills. The dynamic seal tube is a tube that slides within the bore of the piston and the anvil portion of the drill bit and co-operatively acts to release different volumes of pressurized fluid from the lower chamber when the piston is in different predetermined positions.Type: ApplicationFiled: July 10, 2014Publication date: June 2, 2016Inventor: Tony LORGER
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Patent number: 9068399Abstract: A down-hole hammer includes a two-piece drill bit retained in a casing having an interior surface with a plurality of longitudinal grooves formed therein. The bit shank and the casing are rotationally connected by a number of pins received in the grooves. A symmetrical free piston divides the casing into an upper working chamber and a lower working chamber. The piston slides on an air control assembly including a ported tube extending axially from said air supply to an axial bore in the shank of the bit to guide exhaust air through discharge ports at the cutting face of the bit, the bit reciprocating on the end of the tube. The upper and lower check valves in the air control assembly and openable by supply pressure against a spring bias in response to working fluid supply pressure.Type: GrantFiled: January 17, 2012Date of Patent: June 30, 2015Assignee: Drillroc Pneumatic Pty LtdInventor: Tony Lorger
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Publication number: 20120118648Abstract: A down-hole hammer includes a two-piece drill bit retained in a casing having an interior surface with a plurality of longitudinal grooves formed therein. The bit shank and the casing are rotationally connected by a number of pins received in the grooves. A symmetrical free piston divides the casing into an upper working chamber and a lower working chamber. The piston slides on an air control assembly including a ported tube extending axially from said air supply to an axial bore in the shank of the bit to guide exhaust air through discharge ports at the cutting face of the bit, the bit reciprocating on the end of the tube. The upper and lower check valves in the air control assembly and openable by supply pressure against a spring bias in response to working fluid supply pressure.Type: ApplicationFiled: January 17, 2012Publication date: May 17, 2012Applicant: Drillroc Pneumatic Pty LtdInventor: Tony Lorger
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Patent number: 8109348Abstract: There is provided a downhole hammer including a drill bit (2) retained by short (4) and long (5) drive pins in the bore of a driver chuck (1). The chuck (1) and bit (2) shank have machined longitudinal grooves (3), every second bit shank groove being blind and connected to the adjacent open groove by a short-pin length relief. The shorter pins (4) are inserted into the visible holes formed by the alignment of the open drill bit grooves and driver chuck grooves (3). The chuck (1) is then indexed which shunts the short pins (4) sideways until the longer pins (5) are insertable. The driver chuck (1) and drill bit (2) are engaged rotationally. The bit (2) slides by the desired distance due to the shorter pins (4) being entrapped in the blind grooves. The arrangement does not require a bit shank extension to accommodate a conventional bit retainer ring.Type: GrantFiled: October 17, 2007Date of Patent: February 7, 2012Assignee: Drillroc Pneumatic Pty LtdInventors: Tony Lorger, Daniel Paul Lorger
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Publication number: 20100300763Abstract: There is provided a downhole hammer including a drill bit (2) retained by short (4) and long (5) drive pins in the bore of a driver chuck (1). The chuck (1) and bit (2) shank have machined longitudinal grooves (3), every second bit shank groove being blind and connected to the adjacent open groove by a short-pin-length relief. The shorter pins (4) are inserted into the visible holes formed by the alignment of the open drill bit grooves and driver chuck grooves (3). The chuck (1) is then indexed which shunts the short pins (4) sideways until the longer pins (5) are insertable. The driver chuck (1) and drill bit (2) are engaged rotationally. The bit (2) slides by the desired distance due to the shorter pins (4) being entrapped in the blind grooves. The arrangement does not require a bit shank extension to accommodate a conventions bit retainer ring.Type: ApplicationFiled: October 17, 2007Publication date: December 2, 2010Applicant: DRILLROC PNEUMATIC PTY LTDInventors: Tony Lorger, Daniel Paul Lorger
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Patent number: 7721628Abstract: A manually or mechanically/hydraulically operable tong of light weight and high load capacity by means of a multi-layer interlocking construction achieved by cutting the shapes from plate steel by known means, assembling the plate sections in suitable order, and retained with each other by cylindrical steel pins (8) forming a multi hinged tool capable of engaging the job circumference on two or more points equally via replaceable jaw dies (15) retained radially and axially.Type: GrantFiled: August 15, 2005Date of Patent: May 25, 2010Assignee: Drillroc Pneumatic Pty LtdInventors: Tony Lorger, Daniel Paul Lorger
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Patent number: 7581602Abstract: There is provided a down hole hammer having a drive sub or chuck (10) having splines (11), and a drill bit (13) having a bit shank (14) having longitudinal splines (23) extending toward a bit head (15) having a bit face (16) bounded by a series of gauge row mounting portions (17), each of which has a carbide button insert (20). The bit shank splines (23) cooperate with chuck splines (11) to rotate the bit (13), the respective splines (23), (11) being proportioned to allow hammer motor exhaust air to pass down the splines. Drillings (37) are drilled from the termination of the spline milling, through to intersect with fluid passage (33) extending from sample recovery bore (22) to the bit face (16). A bore seal (32) is formed by milling a plurality of circumferential grooves (36), fed by a plurality of transverse holes (35) intersecting the air passage (33). Fluid passage (33) may be altered to fine tune the airflow to suit specific ground conditions, by effecting a change in diameter at point (38).Type: GrantFiled: July 26, 2004Date of Patent: September 1, 2009Assignee: Sparroc Drillco Services Pty LtdInventors: Tony Lorger, Daniel Paul Lorger, Sugavanum Ravichandra
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Publication number: 20080307929Abstract: A manually or mechanically/hydraulically operable tong of light weight and high load capacity by means of a multi-layer interlocking construction achieved by cutting the shapes from plate steel by known means, assembling the plate sections in suitable order, and retained with each other by cylindrical steel pins (8) forming a multi hinged tool capable of engaging the job circumference on two or more points equally via replaceable jaw dies (15) retained radially and axially.Type: ApplicationFiled: August 15, 2005Publication date: December 18, 2008Applicant: SPARROC DRILLCO SERVICES PTY LTDInventors: Tony Lorger, Daniel Paul Lorger
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Publication number: 20070007045Abstract: There is provided a down hole hammer having a drive sub or chuck (10) having splines (11), and a drill bit (13) having longitudinal splines (23) extending toward a bit head (15) having a bit face (16) bounded by a series of gauge row mounting portions (17), each of which has a carbide button insert (20). The bit shank splines (23) cooperate with chuck splines (11) to rotate the bit (13), the respective splines (23), (11) being proportioned to allow hammer motor exhaust air to pass down the splines. Drillings (37) are drilled from the termination of the spline milling, through to intersect with fluid passage (33) extending from sample recovery bore (22) to the bit face (16). A bore seal (32) is formed by milling a plurality of circumferential grooves (36), fed by a plurality of transverse holes (35) intersecting the air passage (33). Fluid passage (33) may be altered to fine tune the airflow to suit specific ground conditions, by effecting a change in diameter at point (38).Type: ApplicationFiled: July 26, 2004Publication date: January 11, 2007Applicant: SPARR DRILLING EQUIPMENT PTY LTDInventors: Tony Lorger, Sugavanum Ravichandra, Daniel Lorger