PT73003B - Free piston machine - Google Patents

Free piston machine

Info

Publication number
PT73003B
PT73003B PT7300381A PT7300381A PT73003B PT 73003 B PT73003 B PT 73003B PT 7300381 A PT7300381 A PT 7300381A PT 7300381 A PT7300381 A PT 7300381A PT 73003 B PT73003 B PT 73003B
Authority
PT
Portugal
Prior art keywords
free piston
piston machine
machine
free
piston
Prior art date
Application number
PT7300381A
Other languages
Portuguese (pt)
Other versions
PT73003A (en
Inventor
Nigel Bruce Cox
Original Assignee
Halifax Tool 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 Halifax Tool Co Ltd filed Critical Halifax Tool Co Ltd
Publication of PT73003A publication Critical patent/PT73003A/en
Publication of PT73003B publication Critical patent/PT73003B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
PT7300381A 1980-05-09 1981-05-08 Free piston machine PT73003B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8015389 1980-05-09
GB8040286 1980-12-16

Publications (2)

Publication Number Publication Date
PT73003A PT73003A (en) 1981-06-01
PT73003B true PT73003B (en) 1982-04-30

Family

ID=26275454

Family Applications (1)

Application Number Title Priority Date Filing Date
PT7300381A PT73003B (en) 1980-05-09 1981-05-08 Free piston machine

Country Status (5)

Country Link
EP (1) EP0040026A1 (en)
AU (1) AU7025881A (en)
CA (1) CA1151027A (en)
ES (1) ES8302186A1 (en)
PT (1) PT73003B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0081897B1 (en) * 1981-12-10 1986-04-09 WEAVER & HURT LIMITED Percussive drills
DE3362163D1 (en) * 1982-07-23 1986-03-27 Weaver & Hurt Ltd Rock drills
AU608441B2 (en) * 1988-06-15 1991-03-28 Abraham Gien Down the hole hammer equipment
SE469185B (en) * 1992-03-31 1993-05-24 Uniroc Ab BATTERY PISTON FOR PUMP DRILLING MACHINE
AUPO957097A0 (en) * 1997-10-01 1997-10-30 Rear, Ian Graeme Hammer
CZ136198A3 (en) 1998-05-04 1999-11-17 Permon S. R. O. Air-operated underwater drilling tools
US8046269B2 (en) 2000-02-17 2011-10-25 Fedbid, Inc. Auction based procurement system
US7272579B1 (en) * 2000-02-17 2007-09-18 Fedbid, Inc. Auction based procurement system
AU2006311987B2 (en) * 2005-11-03 2011-03-10 Rockmore International, Inc. Backhead and drill assembly with backhead

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774334A (en) * 1953-05-01 1956-12-18 Hughes Tool Co Reciprocating prime mover
US3944003A (en) * 1972-04-24 1976-03-16 Bakerdrill, Inc. Bore hole air hammer
US3964551A (en) * 1974-09-20 1976-06-22 Reed Tool Company Pneumatic impact drilling tool
GB1472501A (en) * 1975-01-13 1977-05-04 Gien Abraham Pneumatic percussive machines
US4030554A (en) * 1975-07-07 1977-06-21 Bakerdrill, Inc. Bore hole airhammer and anvil bit
US4084647A (en) * 1976-07-01 1978-04-18 William Lister Pneumatic percussion hammer

Also Published As

Publication number Publication date
ES502022A0 (en) 1982-12-16
CA1151027A (en) 1983-08-02
PT73003A (en) 1981-06-01
EP0040026A1 (en) 1981-11-18
AU7025881A (en) 1981-11-12
ES8302186A1 (en) 1982-12-16

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