Title of Invention	AN IMPROVED SINGLE ACTUATOR FEED MECHANISM FOR TWO POWER HEADS OF A DRILLING EQUIPMENT AND THE LIKE.
Abstract	AB5TRACT An Improved single actuator feed mechaniam for two power heada on a drilling equipment and the like comprieing of top power head 45 and a bottom power head 46 each mounted over a pxx pair of guide shoes 43, 44 and travelling selectively, on a common drill guide 55 housing a rear top fixed pulley 31, a TBBX bottom fixed pulley 32, a front top fixed pulley 33, a front bottom fixed pulley 34, a pair of left and right movable pulleys 35 and 36, fixed on a guide block 40, attached to a feed actuator 39, mounted at its front end to e hinge 58, a top common anchor 41 and a bottom common anchor 42 attached to the said top power head 45 and bottom power head 46 respectively, a atoll wire rope 37 attached to the said top common anchor 41, passing over the said resr top fixed pulley 31, left movable pulley 35, rear bottom fixed pulley 32 and terminating at the said bottom common anchor 42, another steel Mire ropB 38 attached to the said top common anchor 41 passing over the said front top fixed pulleys 33, the right movable pulley 36, front bottom pulley 34 and terminating at the said bottom common anchor 42, a top drill bit 51 atteched to the said top power head 45 through a interconnecting top rotary coupling 47 and a top drill rod 49 carried on a top centralizer bushing 53 mounted on the front end of the said common drill guide 55, a bottom drill bit 4 52 atteched to the said bottom power head 46 through e rotary coupling 40 and a bottom drill rod 50 cerried on e bottom centralizar buehing 54, mounted on the front end of the said common drill guide 55, a locking system consisting of a pair of swivel arms 56 connected at one end to e small actuator 57 and grooves provided in the eaid top guide shoes 43 end the bottom guide shoos 44 for engaging thereinto the eaid swivel arme for selectively locking the respective power heed.

Title of Invention

AN IMPROVED SINGLE ACTUATOR FEED MECHANISM FOR TWO POWER HEADS OF A DRILLING EQUIPMENT AND THE LIKE.

Abstract

AB5TRACT An Improved single actuator feed mechaniam for two power heada on a drilling equipment and the like comprieing of top power head 45 and a bottom power head 46 each mounted over a pxx pair of guide shoes 43, 44 and travelling selectively, on a common drill guide 55 housing a rear top fixed pulley 31, a TBBX bottom fixed pulley 32, a front top fixed pulley 33, a front bottom fixed pulley 34, a pair of left and right movable pulleys 35 and 36, fixed on a guide block 40, attached to a feed actuator 39, mounted at its front end to e hinge 58, a top common anchor 41 and a bottom common anchor 42 attached to the said top power head 45 and bottom power head 46 respectively, a atoll wire rope 37 attached to the said top common anchor 41, passing over the said resr top fixed pulley 31, left movable pulley 35, rear bottom fixed pulley 32 and terminating at the said bottom common anchor 42, another steel Mire ropB 38 attached to the said top common anchor 41 passing over the said front top fixed pulleys 33, the right movable pulley 36, front bottom pulley 34 and terminating at the said bottom common anchor 42, a top drill bit 51 atteched to the said top power head 45 through a interconnecting top rotary coupling 47 and a top drill rod 49 carried on a top centralizer bushing 53 mounted on the front end of the said common drill guide 55, a bottom drill bit 4 52 atteched to the said bottom power head 46 through e rotary coupling 40 and a bottom drill rod 50 cerried on e bottom centralizar buehing 54, mounted on the front end of the said common drill guide 55, a locking system consisting of a pair of swivel arms 56 connected at one end to e small actuator 57 and grooves provided in the eaid top guide shoes 43 end the bottom guide shoos 44 for engaging thereinto the eaid swivel arme for selectively locking the respective power heed.

Full Text

Documents:

349-BOM-1990-CANCELLED PAGES.pdf

349-BOM-1990-CORRESPONDENCE(IPO).pdf

349-BOM-1990-CORRESPONDENCE(RECEIVED).pdf

349-BOM-1990-FORM 2(COMPLETE).pdf

349-BOM-1990-FORM 2(GRANTED).pdf

349-BOM-1990-FORMS.pdf

349-BOM-1990-SPECIFICATION(AMENDED).pdf

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Patent Number

172900

Indian Patent Application Number

349/BOM/1990

PG Journal Number

44/2012

Publication Date

02-Nov-2012

Grant Date

02-Sep-1994

Date of Filing

27-Dec-1990

Name of Patentee

INGERSOLL-RAND (INDIA) LIMITED.

Applicant Address

RHONE-POULENC HOUSE, S.K. AHIRE MARG, BOMBAY-400025.

Inventors:

#	Inventor's Name	Inventor's Address
1	KAPPADATH PUTHENVEEDU MOHANAN	NO.3, 12TH CROSS, JAYAMAHAL EXTENSION, BANGALORE-560046.
2	AMBADATH RAJENDRAN	511, 9TH "A" MAIN, SECTOR "A", PHASE II, YELEHNAKA NEW TOWN, BANGALORE-560064.
3	PANAMABUR SURESH RAO	61, 4TH CROSS, II STAGE, INDIRANAGAR, BANGALORE-560038.

PCT International Classification Number

E21C5/08

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1			NA