CA2139183A1 - Blasthole Drill with Drill-Through Pipe Rack - Google Patents

Blasthole Drill with Drill-Through Pipe Rack

Info

Publication number
CA2139183A1
CA2139183A1 CA 2139183 CA2139183A CA2139183A1 CA 2139183 A1 CA2139183 A1 CA 2139183A1 CA 2139183 CA2139183 CA 2139183 CA 2139183 A CA2139183 A CA 2139183A CA 2139183 A1 CA2139183 A1 CA 2139183A1
Authority
CA
Canada
Prior art keywords
gate
drill
pipe
mast
supported
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2139183
Other languages
French (fr)
Other versions
CA2139183C (en
Inventor
H. Dewain Whisenhunt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harnischfeger Technologies Inc
Original Assignee
Harnischfeger Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/270,959 external-priority patent/US5622232A/en
Application filed by Harnischfeger Corp filed Critical Harnischfeger Corp
Publication of CA2139183A1 publication Critical patent/CA2139183A1/en
Application granted granted Critical
Publication of CA2139183C publication Critical patent/CA2139183C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

A blasthole drill comprising a frame supported for movement over the ground, a mast supported by the frame for movement relative thereto between a substantially vertical position and a non-vertical position, the mast defining a drill hole axis, a drill-through pipe rack mounted on the mast, the pipe rack including a rack member, a gate mounted on the rack member, the gate having open and closed modes and being adapted to support the lower end of a drill pipe when the gate is in the closed mode, the gate permitting the drill pipe to move downwardly relative to the gate when the gate switches to the open mode, and the gate allowing movement of the rack member away from a drill pipe previously supported by the gate when the gate is in the open mode, a mechanism for moving the rack member horizontally relative to the mast and between an extended position wherein a drill pipe supported by the gate is on the drill hole axis and a retracted position wherein the gate is spaced from a drill pipe on the drill hole axis, and a rotary head moveable relative to the mast along the drill hole axis, the rotary head being selectively engageable with the upper end of a drill pipe supported by the pipe rack when the rack member is in the extended position.
CA 2139183 1994-07-01 1994-12-28 Blasthole drill with drill-through pipe rack Expired - Fee Related CA2139183C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US27015494A 1994-07-01 1994-07-01
US270,154 1994-07-01
US270,959 1994-07-05
US08/270,959 US5622232A (en) 1994-07-01 1994-07-05 Blasthole drill with drill-through pipe rack

Publications (2)

Publication Number Publication Date
CA2139183A1 true CA2139183A1 (en) 1996-01-02
CA2139183C CA2139183C (en) 1999-11-16

Family

ID=26954101

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2139183 Expired - Fee Related CA2139183C (en) 1994-07-01 1994-12-28 Blasthole drill with drill-through pipe rack

Country Status (2)

Country Link
AU (1) AU697366B2 (en)
CA (1) CA2139183C (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860126A (en) * 1973-10-10 1975-01-14 Bucyrus Erie Co Pipe handling apparatus
US4595066A (en) * 1983-12-16 1986-06-17 Becor Western, Inc. Apparatus for handling drill pipes

Also Published As

Publication number Publication date
CA2139183C (en) 1999-11-16
AU2181895A (en) 1996-01-18
AU697366B2 (en) 1998-10-01

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed