Boring or penetrating the earth – With signaling – indicating – testing or measuring – Tool position direction or inclination measuring or...
Reexamination Certificate
2007-04-10
2007-04-10
Tsay, Frank (Department: 3672)
Boring or penetrating the earth
With signaling, indicating, testing or measuring
Tool position direction or inclination measuring or...
C175S040000, C175S061000, C324S326000
Reexamination Certificate
active
11339039
ABSTRACT:
A portable area monitoring system for use with a horizontal directional drilling machine and adapted to produce a composite of the positions of a beacon and a fixed object. In a preferred embodiment the sensor assembly is supported by a hand-held frame and adapted to detect signals emanating from each of a beacon and a fixed object. The sensor assembly transmits the detected signals to a processor which simultaneously processes the signals to produce a composite of relative positions of the beacon and the fixed object to the frame. The composite of the relative positions of the beacon and the fixed object to the frame is communicated to the operator using a portable display.
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“The S6 Locating System” SeekTech™ sales brochure, San Diego, California.
Jin Jian
Nickel Frank S.
The Charles Machine Works, Inc.
Tomlinson & O'Connell PC
Tsay Frank
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