Patent US3934659A successfully refreshed from Google Patents.
US3934659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for drilling holes in earth surface
Assignee: Individual
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Filing: 1975-04-15
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Granted: 1976-01-27
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Expires: 1995-04-15
Abstract
Abstract The apparatus is a rocket with a drill head provided with a group of jet nozzles. One nozzle of this group is the face-forming one, while the plurality of the rows of the rest of the nozzles belong to imaginary circles concentric with the longitudinal axis of the rocket. The spacing of the nozzles in each row equals 4 to 7 critical diameters of the jet nozzle of the respective row, while the spacing of any pair of the adjacent rows of the nozzles in a projection of the drill head upon a plane perpendicular to the longitudinal axis of the rocket is 4 to 7 times greater than the mean diameter of the nozzles of the said pair of rows of nozzles.
Inventors
- 👤 Mikhail Ivanovich Tsiferov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:52
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/14; E21B12/00; E21B12/04; E21B7/18
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
173 words
An apparatus for drilling holes in earth surface, including a rocket comprising: a generator of gas under high pressure; a drill head situated in the head portion of said rocket and including a group of jet nozzles communicating with said gas generator to create a dynamic gas jet acting on the face of the hole, said group of nozzles including a central nozzle belonging to the longitudinal axis of said rocket and being the hole-face nozzle and a plurality of rows of nozzles belonging to imaginary circles spaced from one another along the longitudinal axis of said rocket, the spacing between any adjacent pair of said rows of nozzles in a projection of sadi drill head upon a plane perpendicular to the longitudinal axis of said rocket being 4 to 7 times greater than the mean diameter of the nozzles of said adjacent pair of said rows of nozzles, the spacing between any two adjacent nozzles in each row being equal 4 to 7 critical diameters of the nozzles of said respective row.
Claim 2
Independent Claim
173 words
An apparatus for drilling holes in earth surface, including a rocket comprising: a generator of gas under high pressure; a drill head situated in the head portion of said rocket and including a group of jet nozzles communicating with said gas generator to create a dynamic gas jet acting on the face of the hole, said group of nozzles including a central nozzle belonging to the longitudinal axis of said rocket and being the hole-face nozzle and a plurality of rows of nozzles belonging to imaginary circles spaced from one another along the longitudinal axis of said rocket, the spacing between any adjacent pair of said rows of nozzles in a projection of sadi drill head upon a plane perpendicular to the longitudinal axis of said rocket being 4 to 7 times greater than the mean diameter of the nozzles of said adjacent pair of said rows of nozzles, the spacing between any two adjacent nozzles in each row being equal 4 to 7 critical diameters of the nozzles of said respective row.
Claim 3
Dependent Claim
63 words
An apparatus as claimed in claim 1, wherein one of said rows of said nozzles includes at least one pair of said nozzles arranged in diametrical opposition to each other in said one row and oriented in opposite directions in a projection upon a plane perpendicular to the longitudinal axis of said rocket, to create a torque with respect to this longitudinal axis.
Claim 4
Dependent Claim
72 words
An apparatus as claimed in claim 1, wherein, in order to provide an additional dynamic gas jet creating an additional force helping to maintain the rocket above the face of the hole, at least one pair of said nozzles is arranged in diametrical opposition to each other in the respective one of said rows of said nozzles aand are oriented in a direction opposite to that of the progress of said rocket.
Claim 5
Dependent Claim
26 words
An apparatus as claimed in claim 1, wherein all said nozzles of said drill head are oriented in the direction of the progress of said rocket.
Claim 6
Dependent Claim
68 words
An apparatus as claimed in claim 1, having at least one aerodynamic flap means including trapezoidal plates mounted on the housing of said rocket and retainable selectively in two positions in one of which said plates extend longitudinally of said rocket and in the other of which said plates extend at an angle to the longitudinal axis of said rocket, spanning the cross-section of the hole being drilled.
Claim 7
Dependent Claim
74 words
An apparatus as claimed in claim 1, including an auxiliary gas generator arranged in the tail portion of said rocket and associated with a group of jet nozzles of which some are arranged in the face of said rocket, opposite to said hole-face nozzle thereof, to create additional thrust and of which the other nozzles are arranged intermediate of said drill head and said aerodynamic flap means to build up pressure under the latter.
Claim 8
Dependent Claim
106 words
An apparatus as claimed in claim 1, including a system for cooling said drill head, including a vessel with a supply of a coolant, arranged within the housing of said rocket intermediate of said drill head and said gas generator, a conduit offering a flow passage for the gas to flow toward said drill head extending centrally of said vessel, the end face of said vessel, remote from the drill head, having perforations to create pressure within said vessel, the opposite end face of said vessel being provided with ejector nozzles for injecting the coolant into the flow of the gas coming into said drill head.
Claim 9
Dependent Claim
53 words
An apparatus as claimed in claim 7, wherein said cooling system for cooling said drill head includes a vessel with a supply of coolant, arranged along the longitudinal axis of said rocket and defining, together with the housing of said rocket, and annular passage through which the gas flows toward said drill head.
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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) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |