Resources Contact Us Home
Underground boring and pipe installation

Image Number 4 for United States Patent #6109831.

A utility power unit (10) for underground drilling and pipe laying operations comprises a stationary frame portion (12), a movable frame portion (14) capable of performing sliding movement relative to the stationary frame portion (12) and hydraulic cylinders (44) between the stationary and the movable frame portions (12, 14) for effecting the relative movement. The movable frame portion (14) includes an attachment (36) for removably attaching a tool connecting member (38) thereto and a further attachment (40) for removably attaching a rotary drive unit (52) thereto. The invention also provides a method of directional boring along an intended underground path (62) comprising the steps of providing a machine pit (60) at a location along the intended path (62) and drilling a bore along the intended path (62) by means of directional drilling apparatus (10) which includes a stem (30) provided with a drill (68) at a forward end thereof. The bore is started from an inside wall (64) of the pit (60) and at a location beneath ground surface.

  Recently Added Patents
Systems and methods for minimization or elimination of diffusion effects in a microfluidic system
Apparatus and method for connection control with media negotiation successful on different media formats
Method for producing a sulfonated polyarylether block copolymer
Method of treating lung cancer
Disk array apparatus and firmware update method therefor
Systems and methods for determining muscle force through dynamic gain optimization of a muscle PID controller for designing a replacement prosthetic joint
Automated user interface adjustment
  Randomly Featured Patents
Seal for movable structural components
End-of-session authentication
Model racing car having an improved rear wheel suspension
Tent structure
Cooling device boiling and condensing refrigerant
High-pressure fuel supply circuit
Air flow detection apparatus
Zero indication forwarding for floating point unit power reduction
High impact ternary blend PVC moulding compositions
Video game controller front face