Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Mounting apparatus for PCI card
Heteroleptic iridium complexes as dopants
Current collector for lead acid battery
Apparatus for electrographic printing or copying
Synchronization scheduling apparatus and method in real-time multi-core system
Communication system and data transmission method thereof
Charging current control method and charging system
  Randomly Featured Patents
Hardware checksum assist for network protocol stacks
Chassis frame module and method of use for same
Process and apparatus for producing high-purity nitrogen by low-temperature fractionation of air
Sound imaging apparatus for a video game system
Laminar flow lighted waterfall apparatus for spa
Array splice for ribbon-like multi-core optical fibers
Scene characteristics detection type video encoding apparatus
Fluid-pressure elevator
Light scanning unit and image forming apparatus employing the same
Telephone line use enablement of lottery participation