US3601205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rock drill
Assignee: Ingersoll Rand Co
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Filing: 1970-04-07
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Granted: 1971-08-24
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Expires: 1990-04-07
Abstract
Abstract A rock drill assembly which includes a drilling machine mounted within a sound-absorbing container. The container is longer than the length of the drilling machine so that the container acts as the guide for the drilling machine as the machine is advanced into the material being drilled. The drill is provided with bearings which engage the inside of the container for guiding the movement of the drill within the container. Apparatus is provided for advancing and retracting the drilling machine relative to the container. There may be apparatus for independently rotating the drill steel relative to the container.
Inventors
- 👤 Ewald H Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:58
CPC Classifications
B; B25; B25D; B25D17/00; B25D17/11; Y; Y10; Y10S; Y10S173/00; Y10S173/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
107 words
A rock drill comprising: a hOllow casing; a drilling machine mounted for reciprocal movement within said casing; means operatively connected to said drilling machine for reciprocating said drilling machine within said casing wherein said means for reciprocating said drilling machine includes motor means mounted at one end of said casing and feed means operatively connecting said drilling machine to said motor means, said feed means being mounted within said casing; and guide means positioned between said drilling machine and the inside of said casing for guiding the movement of said drilling machine within said casing; said casing adapted to muffle the noise produced by said drilling machine.
Claim 2
Dependent Claim
107 words
A rock drill comprising: a hOllow casing; a drilling machine mounted for reciprocal movement within said casing; means operatively connected to said drilling machine for reciprocating said drilling machine within said casing wherein said means for reciprocating said drilling machine includes motor means mounted at one end of said casing and feed means operatively connecting said drilling machine to said motor means, said feed means being mounted within said casing; and guide means positioned between said drilling machine and the inside of said casing for guiding the movement of said drilling machine within said casing; said casing adapted to muffle the noise produced by said drilling machine.
Claim 3
Dependent Claim
59 words
The rock drill of claim 1 wherein said motor means is a rotary motor and said feed means includes a feed screw rotatably mounted within said casing and a nut fixed to said drilling machine; said feed screw passing through said nut so that when said feed screw is rotated, said drilling machine will move relative to said casing.
Claim 4
Dependent Claim
33 words
The rock drill of claim 1 wherein said casing includes at least a pair of spaced-apart walls and sound-absorbent material between said walls to thereby muffle the noise produced by said drilling machine.
Claim 5
Dependent Claim
33 words
The rock drill of claim 1 wherein said casing is polygonal in cross-sectional configuration and said guide means includes bearing means mounted on said drilling machine for engaging internal corners of said casing.
Claim 6
Dependent Claim
97 words
A rock drill comprising: a housing; a fluid-pressure-operated drilling machine including apparatus for delivering an impact to a drill steel mounted for reciprocal movement in said housing; means operatively connected to said drilling machine for reciprocating said drilling machine relative to said housing; conduit means extending into said housing for conducting fluid under pressure to said drilling machine for operating said drilling machine; a drill steel extending into said housing; and means operatively connected to said drill steel within said housing and independent of said drilling machine for rotating said drill steel relative to said drilling machine.
Claim 7
Dependent Claim
97 words
A rock drill comprising: a housing; a fluid-pressure-operated drilling machine including apparatus for delivering an impact to a drill steel mounted for reciprocal movement in said housing; means operatively connected to said drilling machine for reciprocating said drilling machine relative to said housing; conduit means extending into said housing for conducting fluid under pressure to said drilling machine for operating said drilling machine; a drill steel extending into said housing; and means operatively connected to said drill steel within said housing and independent of said drilling machine for rotating said drill steel relative to said drilling machine.
Claim 8
Dependent Claim
49 words
The rock drill of claim 5 wherein said means for reciprocating said drilling machine includes motor means mounted at one end of said housing, a shaft operatively connected to said motor means and rotatably mounted in said housing and means operatively connected said rotatable shaft to said drilling machine.
Claim 9
Dependent Claim
29 words
The rock drill of claim 6 further comprising guide means positioned between said drilling machine and said housing for guiding the movement of said drilling machine within said housing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |