Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along...
Patent
1989-07-11
1990-12-04
Dang, Hoang C.
Boring or penetrating the earth
Means traveling with tool to constrain tool to bore along...
175 61, 175323, 175382, 175394, E21B 708, E21B 1044
Patent
active
049746880
ABSTRACT:
A steerable earth boring device comprises a compaction auger rotatably mounted to a housing at one end of the auger such that the compaction auger is substantially externally exposed. A steering tip is pivotably disposed at the other end of the compaction auger for providing steering control for the earth boring device. An internally housed steering mechanism is provided for pivoting the steering tip relative to the compaction auger while the auger is rotating. The steering mechanism includes a non-rotatable cam disposed within and pivotably connected to the housing and a follower rotatable with and pivotable relative to the compaction auger. The cam and follower contact at a bearing surface so that pivoting motion of the cam is transmitted to the rotatable follower. A control member is connected between the follower and the steering tip, extending through the compaction auger, to transmit pivoting of the follower to pivoting of the steering tip.
REFERENCES:
patent: 3326008 (1967-06-01), Baran et al.
patent: 3526285 (1970-09-01), Adkins et al.
patent: 3565190 (1971-02-01), Ishii
patent: 3743034 (1973-07-01), Bradley
patent: 4013134 (1977-03-01), Richmond et al.
patent: 4026371 (1977-05-01), Takada et al.
patent: 4342346 (1977-08-01), Capoccia
patent: 4374547 (1983-02-01), Nguyen et al.
patent: 4396073 (1983-08-01), Reichman et al.
patent: 4571122 (1986-02-01), Yamamoto et al.
patent: 4655299 (1987-04-01), Schoeffler
patent: 4674579 (1987-06-01), Geller et al.
patent: 4714118 (1987-12-01), Baker et al.
patent: 4787463 (1988-11-01), Geller et al.
Dang Hoang C.
Public Service Company of Indiana, Inc.
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