US3870110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power train for horizontal earth boring machine
Assignee: Richmond Manufacturing Co
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Filing: 1973-03-01
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Granted: 1975-03-11
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Expires: 1993-03-01
Abstract
Abstract A portable earth boring machine adapted for horizontal boring of shafts for the insertion of pipelines in installations where excavation from the surface is undesirable. The machine is characterized by a novel rugged thrust plate and boring assembly located in the power train of the apparatus between the boring auger and the frame of the machine so as to isolate the gear reduction unit from excessive axial thrust force encountered in boring operations. The machine is further characterized by a novel power train that adapts the novel power train whereby the earth boring auger can be driven at infinitely variable speeds. In addition, the machine is provided with a detachably mounted engine frame portion that permits the transmission of power between the engine and the boring auger apparatus not only when the engine frame portion is mounted on said main frame portion at the boring location but also when said engine frame portion is detached and positioned at a location remote from the main frame means and boring auger apparatus.
Inventors
- 👤 Albert R Richmond
- 👤 William S Appleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:11
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/20; E21B7/201; E21B19/00; E21B19/08; E21B19/086
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
140 words
A portable earth boring machine comprising, in combination, track means, carriage means mounted for movement along said track means and including an upper carriage frame portion removably mounted on said carriage means for operational use in either a carriage mounted or a remote location; an engine mounted on said upper carriage frame portion; variable volume pump means mounted on said upper carriage frame portion and driven by said engine; fluid motor means mounted on said carriage means; flexible conduit means for connecting said fluid motor to said pump means in either of said locations; auger connecting shaft means including a front end for connection with an earth boring auger and a rear end driven by said fluid motor; and a casing pusher ring at the forward end of said carriage means in surrounding relationship with said auger connecting shaft means.
Claim 2
Dependent Claim
140 words
A portable earth boring machine comprising, in combination, track means, carriage means mounted for movement along said track means and including an upper carriage frame portion removably mounted on said carriage means for operational use in either a carriage mounted or a remote location; an engine mounted on said upper carriage frame portion; variable volume pump means mounted on said upper carriage frame portion and driven by said engine; fluid motor means mounted on said carriage means; flexible conduit means for connecting said fluid motor to said pump means in either of said locations; auger connecting shaft means including a front end for connection with an earth boring auger and a rear end driven by said fluid motor; and a casing pusher ring at the forward end of said carriage means in surrounding relationship with said auger connecting shaft means.
Claim 3
Dependent Claim
140 words
A portable earth boring machine comprising, in combination, track means, carriage means mounted for movement along said track means and including an upper carriage frame portion removably mounted on said carriage means for operational use in either a carriage mounted or a remote location; an engine mounted on said upper carriage frame portion; variable volume pump means mounted on said upper carriage frame portion and driven by said engine; fluid motor means mounted on said carriage means; flexible conduit means for connecting said fluid motor to said pump means in either of said locations; auger connecting shaft means including a front end for connection with an earth boring auger and a rear end driven by said fluid motor; and a casing pusher ring at the forward end of said carriage means in surrounding relationship with said auger connecting shaft means.
Claim 4
Dependent Claim
140 words
A portable earth boring machine comprising, in combination, track means, carriage means mounted for movement along said track means and including an upper carriage frame portion removably mounted on said carriage means for operational use in either a carriage mounted or a remote location; an engine mounted on said upper carriage frame portion; variable volume pump means mounted on said upper carriage frame portion and driven by said engine; fluid motor means mounted on said carriage means; flexible conduit means for connecting said fluid motor to said pump means in either of said locations; auger connecting shaft means including a front end for connection with an earth boring auger and a rear end driven by said fluid motor; and a casing pusher ring at the forward end of said carriage means in surrounding relationship with said auger connecting shaft means.
Claim 5
Dependent Claim
152 words
A portable earth boring machine comprising, in combination, track means; main frame means mounted for movement along said track means; auxiliary frame means for disposition in a location remote from said main frame means; an engine mounted on said auxiliary frame means; variable volume pump means mounted on said auxiliary frame means and driven by said engine; fluid motor means mounted on said main frame means; flexible conduit means for connecting said fluid motor means in circuit with said pump means; a thrust plate forwardly of said fluid motor means; thrust bearing means mounted on said thrust plate; auger connecting shaft means including a front end for connection with an earth boring auger and a rear end including a bearing engaging shoulder abutting said thrust bearing means and driven by said fluid motor; and a casing pusher ring mounted on said frame means in surrounding relationship with said auger connecting shaft means.
Claim 6
Dependent Claim
152 words
A portable earth boring machine comprising, in combination, track means; main frame means mounted for movement along said track means; auxiliary frame means for disposition in a location remote from said main frame means; an engine mounted on said auxiliary frame means; variable volume pump means mounted on said auxiliary frame means and driven by said engine; fluid motor means mounted on said main frame means; flexible conduit means for connecting said fluid motor means in circuit with said pump means; a thrust plate forwardly of said fluid motor means; thrust bearing means mounted on said thrust plate; auger connecting shaft means including a front end for connection with an earth boring auger and a rear end including a bearing engaging shoulder abutting said thrust bearing means and driven by said fluid motor; and a casing pusher ring mounted on said frame means in surrounding relationship with said auger connecting shaft means.
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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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |