IES87350Y1 - Drill bit assembly for reverse circulation hammer - Google Patents

Drill bit assembly for reverse circulation hammer

Info

Publication number
IES87350Y1
IES87350Y1 IE20220068U IE20220068U IES87350Y1 IE S87350 Y1 IES87350 Y1 IE S87350Y1 IE 20220068 U IE20220068 U IE 20220068U IE 20220068 U IE20220068 U IE 20220068U IE S87350 Y1 IES87350 Y1 IE S87350Y1
Authority
IE
Ireland
Prior art keywords
bit
head portion
drive
drill bit
reverse circulation
Prior art date
Application number
IE20220068U
Other versions
IE20220068U1 (en
Inventor
Carl Blundell
Original Assignee
Mincon Int Limted
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 Mincon Int Limted filed Critical Mincon Int Limted
Priority to IE20220068U priority Critical patent/IES87350Y1/en
Publication of IE20220068U1 publication Critical patent/IE20220068U1/en
Publication of IES87350Y1 publication Critical patent/IES87350Y1/en

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

The present invention relates to a drill bit assembly (1) for a reverse circulation down-the-hole hammer (100). The assembly comprises a percussion bit (2) having a head portion (3) with a cutting face (5) at a forward end thereof with engagement means (8) on the head portion for engagement with complementary engagement means (9) on a drive chuck whereby rotational drive from the drive chuck may be transmitted to the percussion bit. Connection means (11) are provided on the drive chuck adapted for connecting the drive chuck to a drive means of the down-the-hole hammer. The percussion bit comprises a central bore (13) in fluid communication with the cutting face of the bit for returning a sample of drilled cuttings to the surface, a first plurality (17) of flushing grooves in an outer surface of the head portion, configured to deliver a supply of flushing medium to the cutting face of the bit and a second plurality (18) of flushing grooves in an outer surface of the head portion, configured to deliver a supply of flushing medium to the central bore.
IE20220068U 2022-04-14 2022-04-14 Drill bit assembly for reverse circulation hammer IES87350Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IE20220068U IES87350Y1 (en) 2022-04-14 2022-04-14 Drill bit assembly for reverse circulation hammer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE20220068U IES87350Y1 (en) 2022-04-14 2022-04-14 Drill bit assembly for reverse circulation hammer

Publications (2)

Publication Number Publication Date
IE20220068U1 IE20220068U1 (en) 2022-12-21
IES87350Y1 true IES87350Y1 (en) 2022-12-21

Family

ID=84493068

Family Applications (1)

Application Number Title Priority Date Filing Date
IE20220068U IES87350Y1 (en) 2022-04-14 2022-04-14 Drill bit assembly for reverse circulation hammer

Country Status (1)

Country Link
IE (1) IES87350Y1 (en)

Also Published As

Publication number Publication date
IE20220068U1 (en) 2022-12-21

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