AU698429B2 - A piston construction for an axial bearing of a drilling machine - Google Patents

A piston construction for an axial bearing of a drilling machine

Info

Publication number
AU698429B2
AU698429B2 AU72180/96A AU7218096A AU698429B2 AU 698429 B2 AU698429 B2 AU 698429B2 AU 72180/96 A AU72180/96 A AU 72180/96A AU 7218096 A AU7218096 A AU 7218096A AU 698429 B2 AU698429 B2 AU 698429B2
Authority
AU
Australia
Prior art keywords
piston
cylinder space
frame
shank
piston portion
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.)
Ceased
Application number
AU72180/96A
Other languages
English (en)
Other versions
AU7218096A (en
Inventor
Timo Muuttonen
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.)
Tamrock Oy
Original Assignee
Tamrock Oy
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
Application filed by Tamrock Oy filed Critical Tamrock Oy
Publication of AU7218096A publication Critical patent/AU7218096A/en
Application granted granted Critical
Publication of AU698429B2 publication Critical patent/AU698429B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/145—Control devices for the reciprocating piston for hydraulically actuated hammers having an accumulator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/24—Damping the reaction force
    • B25D17/245—Damping the reaction force using a fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Earth Drilling (AREA)
AU72180/96A 1995-10-10 1996-10-09 A piston construction for an axial bearing of a drilling machine Ceased AU698429B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI954822 1995-10-10
FI954822A FI98402C (fi) 1995-10-10 1995-10-10 Mäntärakenne porakoneen aksiaalilaakeria varten
PCT/FI1996/000529 WO1997013622A1 (en) 1995-10-10 1996-10-09 A piston construction for an axial bearing of a drilling machine

Publications (2)

Publication Number Publication Date
AU7218096A AU7218096A (en) 1997-04-30
AU698429B2 true AU698429B2 (en) 1998-10-29

Family

ID=8544165

Family Applications (1)

Application Number Title Priority Date Filing Date
AU72180/96A Ceased AU698429B2 (en) 1995-10-10 1996-10-09 A piston construction for an axial bearing of a drilling machine

Country Status (6)

Country Link
EP (1) EP0868263A1 (fi)
JP (1) JPH11513320A (fi)
AU (1) AU698429B2 (fi)
CA (1) CA2234390A1 (fi)
FI (1) FI98402C (fi)
WO (1) WO1997013622A1 (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI109229B (fi) * 2000-05-11 2002-06-14 Sandvik Tamrock Oy Kallioporakone ja kohdistuskappale

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991012934A1 (en) * 1990-02-23 1991-09-05 Tamrock Oy An arrangement for an axial bearing in a drilling machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991012934A1 (en) * 1990-02-23 1991-09-05 Tamrock Oy An arrangement for an axial bearing in a drilling machine

Also Published As

Publication number Publication date
FI98402C (fi) 1997-06-10
AU7218096A (en) 1997-04-30
FI98402B (fi) 1997-02-28
WO1997013622A1 (en) 1997-04-17
JPH11513320A (ja) 1999-11-16
CA2234390A1 (en) 1997-04-17
FI954822A0 (fi) 1995-10-10
EP0868263A1 (en) 1998-10-07

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired