Patent US3610348A successfully refreshed from Google Patents.
US3610348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drilling apparatus
Assignee: ILLINOIS WATER TREATMENT COMPANY A DE CORP
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Filing: 1970-05-04
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Granted: 1971-10-05
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Expires: 1990-05-04
Abstract
Abstract Apparatus for supplying flushing water or other dust-suppressing fluid to an operative drill bit from an external source including a torque transmitting chuck adapted to cooperate with a rotary power source and a hollow drill rod, the chuck having a longitudinal chamber therein to closely receive said drill rod, with the bore of said drill rod connected to a passage between said longitudinal chamber and a peripheral channel in the outside surface of said chuck. A bearing sleeve is adapted to be received over said chuck and in close contact therewith, the bore of said bearing sleeve having a channel around the perimeter thereof aligned with the channel of said chuck and a passage through the wall of said sleeve connecting said sleeve channel to its external surface, said sleeve provided with a bearing surface being substantially cylindrical in cross section and adapted to receive a swivel collar thereover in close contact permitting relating rotary motion therebetween, said collar having an annular channel therein adapted to be aligned with the passage in said sleeve, and having a passage therethrough opening into said annular channel adapted to be connected to an external source of dust-suppressing fluid. Preferred embodiments of said apparatus including sealing means operating between the adjacent surfaces, drill rod, chuck, and drill rod is minimized.
Inventors
- 👤 Marvin J Brooks
- 👤 Charles S Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:23
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
320 words
Apparatus for supplying dust-suppressing fluid to a rock drilling bit during drilling comprising: torque transmitting means adapted at one end to engage rotary power means and having a longitudinal chamber in the other end to engage a hollow drill rod, said torque transmitting means having a peripheral channel intermediate its ends, said peripheral channel and longitudinal chamber having a passage therebetween whereby fluid in said peripheral channel may pass to said longitudinal chamber; a bearing sleeve adapted to be received over said torque transmitting means in close contact therewith, the inside surface of said bearing sleeve having a channel around its perimeter intermediate its ends and a passage through the wall of said sleeve opening into said channel, said bearing sleeve provided with a bearing surface about its periphery in the vicinity of said passage; indexing means to locate said bearing sleeve on said torque transmitting means so that said channels are aligned; locking means operable with said bearing sleeve and torque transmitting means to assure concurrent rotation thereof; a swivel collar having an axial bore therethrough adapted to be closely received over said bearing sleeve at said bearing surface to permit relative rotary motion therebetween, said swivel collar having an annular channel around the perimeter of said bore and a passage through the wall of said collar opening into said annular channel; indexing means to locate said collar on said bearing sleeve at said bearing surface so that said annular channel is aligned with the passage through said bearing sleeve; and means to couple said passage in said swivel collar to external fluid supply means whereby fluid supplied by means may be transmitted through said swivel collar to said annular channel, through said bearing sleeve passage to said channel therein and the adjacent peripheral channel in said torque transmitting means, through the passage in said torque transmitting means to said longitudinal chamber therein and into said hollow drill rod.
Claim 2
Dependent Claim
320 words
Apparatus for supplying dust-suppressing fluid to a rock drilling bit during drilling comprising: torque transmitting means adapted at one end to engage rotary power means and having a longitudinal chamber in the other end to engage a hollow drill rod, said torque transmitting means having a peripheral channel intermediate its ends, said peripheral channel and longitudinal chamber having a passage therebetween whereby fluid in said peripheral channel may pass to said longitudinal chamber; a bearing sleeve adapted to be received over said torque transmitting means in close contact therewith, the inside surface of said bearing sleeve having a channel around its perimeter intermediate its ends and a passage through the wall of said sleeve opening into said channel, said bearing sleeve provided with a bearing surface about its periphery in the vicinity of said passage; indexing means to locate said bearing sleeve on said torque transmitting means so that said channels are aligned; locking means operable with said bearing sleeve and torque transmitting means to assure concurrent rotation thereof; a swivel collar having an axial bore therethrough adapted to be closely received over said bearing sleeve at said bearing surface to permit relative rotary motion therebetween, said swivel collar having an annular channel around the perimeter of said bore and a passage through the wall of said collar opening into said annular channel; indexing means to locate said collar on said bearing sleeve at said bearing surface so that said annular channel is aligned with the passage through said bearing sleeve; and means to couple said passage in said swivel collar to external fluid supply means whereby fluid supplied by means may be transmitted through said swivel collar to said annular channel, through said bearing sleeve passage to said channel therein and the adjacent peripheral channel in said torque transmitting means, through the passage in said torque transmitting means to said longitudinal chamber therein and into said hollow drill rod.
Claim 3
Dependent Claim
38 words
Apparatus according to claim 1 and including sealing means disposed between said torque transmitting means and said bearing sleeve and between said bearing sleeve and said swivel collar adjacent said channels to minimize the loss of fluid therebetween.
Claim 4
Dependent Claim
81 words
Apparatus according to claim 2 wherein said bearing sleeve is threaded at one end and said apparatus includes a locking ring adapted to be received on said threaded portion, said locking rIng provided with additional means to secure it in position on said sleeve, said bearing sleeve indexing means and said locking ring cooperating to position and secure said swivel collar on said bearing surface permitting relative rotary motion therebetween and maintaining alignment of said annular channel and bearing sleeve passages.
Claim 5
Dependent Claim
29 words
Apparatus according to claim 3 wherein said locking ring is a split ring and said securing means bridges said split to tension said locking ring on said bearing sleeve.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |