JPS5252801A - Hydraulic downntheehole drill with pressure compensator - Google Patents

Hydraulic downntheehole drill with pressure compensator

Info

Publication number
JPS5252801A
JPS5252801A JP12905375A JP12905375A JPS5252801A JP S5252801 A JPS5252801 A JP S5252801A JP 12905375 A JP12905375 A JP 12905375A JP 12905375 A JP12905375 A JP 12905375A JP S5252801 A JPS5252801 A JP S5252801A
Authority
JP
Japan
Prior art keywords
downntheehole
drill
hydraulic
pressure compensator
compensator
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
JP12905375A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5422161B2 (cg-RX-API-DMAC7.html
Inventor
Yoshiichi Mikami
Akio Nara
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.)
Furukawa Kogyo Co Ltd
Original Assignee
Furukawa Kogyo Co Ltd
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 Furukawa Kogyo Co Ltd filed Critical Furukawa Kogyo Co Ltd
Priority to JP12905375A priority Critical patent/JPS5252801A/ja
Publication of JPS5252801A publication Critical patent/JPS5252801A/ja
Publication of JPS5422161B2 publication Critical patent/JPS5422161B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP12905375A 1975-10-27 1975-10-27 Hydraulic downntheehole drill with pressure compensator Granted JPS5252801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12905375A JPS5252801A (en) 1975-10-27 1975-10-27 Hydraulic downntheehole drill with pressure compensator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12905375A JPS5252801A (en) 1975-10-27 1975-10-27 Hydraulic downntheehole drill with pressure compensator

Publications (2)

Publication Number Publication Date
JPS5252801A true JPS5252801A (en) 1977-04-28
JPS5422161B2 JPS5422161B2 (cg-RX-API-DMAC7.html) 1979-08-04

Family

ID=14999909

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12905375A Granted JPS5252801A (en) 1975-10-27 1975-10-27 Hydraulic downntheehole drill with pressure compensator

Country Status (1)

Country Link
JP (1) JPS5252801A (cg-RX-API-DMAC7.html)

Also Published As

Publication number Publication date
JPS5422161B2 (cg-RX-API-DMAC7.html) 1979-08-04

Similar Documents

Publication Publication Date Title
CA1031244A (en) Hydraulic cylinder
JPS51132368A (en) Hydraulic coupling
ZA762418B (en) Hydraulic rock drill system
JPS51149884A (en) Improved hydraulic fluid
JPS51140207A (en) Hydraulic rammvalve units
ZA758052B (en) Hydraulic rock drill
JPS51116405A (en) Hydraulic means
ZA763868B (en) Hydraulic jacks
AU2962477A (en) Hydraulic jacks
AU503392B2 (en) Hydraulic mining
JPS5227959A (en) Hydraulic coupling
ZA764943B (en) Hydraulic mine prop
JPS52107476A (en) Doubleeacting hydraulic cylinder
GB1542117A (en) Hydraulic press
JPS51129575A (en) Hydraulic coupling
JPS5281674A (en) Hydraulic press
JPS52125985A (en) Hydraulic cylinder
GB1549635A (en) Hydraulic pressure reducing valve
JPS5252801A (en) Hydraulic downntheehole drill with pressure compensator
CS252801B2 (en) Hydraulic prop
BG24155A1 (en) Hydraulic coupling
JPS5219721A (en) Hydraulic compound
JPS5328803A (en) Hydraulic rams
AU504253B2 (en) Hydraulic mining
JPS5335875A (en) Hydraulic cylinder