Matches 1 - 50 out of 57 1 2 >


Match Document Document Title
5442951 Device for testing pipes for interior leaks  
An arrangement for examining pipes for interior leaks, comprises two mirror-inverted sections, each having at least one clamping device and at least one pair of runners. A pneumatic pressure...
4538522 Cable gripping apparatus having forward and rearward movement capabilities  
An improved cable following apparatus especially suitable for use in replacing an existing underground cable is disclosed herein. This apparatus utilizes a telescopically configured main body...
4537136 Pipeline vehicle  
The vehicle has front and rear sets of wheels (24) carried on sprung arms (20). Each wheel can be locked by a clutch (26). One set of wheels is locked while a ram (32) is operated, causing the...
4534425 Cable reaming apparatus and method  
The technique for replacing an existing underground cable and a specific apparatus for doing so are disclosed herein. The apparatus includes a main body or cable follower which is interconnected...
4522129 Device for charging drillholes  
A two-piece, telescopic climber, which is insertable into a drillhole behind cylindrically shaped explosive charges, alternately advances one and then the other of its two telescopic pieces in the...
4519462 Cable following apparatus having cable cleaning capabilities and method  
A cable following apparatus especially suitable for replacing existing underground cable is disclosed herein. This apparatus includes a tubular main body disposed around and movable along a...
4493379 Cable reaming apparatus and method  
The technique for replacing an existing underground cable and a specific apparatus for doing so are disclosed herein. The apparatus includes a main body or cable follower which is interconnected...
4432271 Locomotion unit for a tool support adapted for progression through passageways  
A locomotion unit is remotely controlled to advance stepwise through a passageway by frictional engagement with the surfaces of the passageway walls. A support section is mounted on the locomotion...
4403667 Cable following apparatus utilizing a releasable cable gripping mechanism  
A cable following apparatus especially suitable for use in replacing existing underground cable by reaming around and along the length of the cable is disclosed herein. This apparatus includes a...
4385667 Cable reaming apparatus  
The technique for replacing an existing underground cable and a specific apparatus for doing so are disclosed herein. The apparatus includes a main body or cable follower which is interconnected...
4372161 Pneumatically operated pipe crawler  
A pneumatically operated pipe crawler for transporting inspection equipment along the interior of a pipe comprises an elongate cylindrical tube of flexible resilient material, such as latex...
4261500 Modular apparatus for the feeding of electrode wire through great distances  
A multi-module system for advancing an electrode wire from a supply location to a field welding station via a plurality of spaced conduit sections is described. Each conduit section is succeeded...
4207872 Device and method for advancing an endoscope through a body passage  
A device and its method of operation for assisting in the advancement of an endoscope through the colon or other body passage. The device includes a sleeve having an annular chamber defined in...
4071086 Apparatus for pulling tools into a wellbore  
A pulling tool apparatus for helping equipment descend down a wellbore, such as logging tools being dropped into a deviated wellbore. A first embodiment employs a mass slidably located inside the...
3465834 GUIDED SUBTERRANEAN PENETRATOR SYSTEMS  
3462124 DUCT RODDER HAVING COLLAPSIBLE TRACTION HEADS  
3330368 Peristaltic gopher  
3322395 Power operated duct rodder  
1,124,732. Pull-through rods. CHICAGO PNEUMATIC TOOL CO. 13 June, 1966 [22 June, 1965], No. 26257/66. Heading F2N. A power-operated duct rodder which travels step-by-step through a duct 21...
3322394 Self-propelled bore traversing device  
3224734 Pneumatic self-propelled apparatus  
3055637 Apparatus for moving through a pipe  
3047270 Apparatus for moving a line through a conduit  
2917762 Apparatus for traveling through pipes  
2897524 Sewer clean-out tool  
2855934 Self-propelled tube  
2727722 Conduit caterpillar  
2673710 Apparatus for feeding ropes and cables through conduits  
1862591 Conduit threader  
1810143 Apparatus for feeding lines  
1675738 Nozzle-propelling mechanism and method of propelling the same  
1223699 CONDUIT-THREADER.  
1128746 CREEPER.  
1041683 LINE-CARRIER.  
1000825 CONDUIT-CREEPER.  
0916985 CONDUIT-THREADING MACHINE.  
0901159 CONDUIT-THREADER.  
0880677 DEVICE FOR THREADING CONDUITS AND FOR ANALOGOUS PURPOSES.  
0873996 CONDUIT-THREADING DEVICE.  
0850798 LINE-CARRIER.  
0850797 CONDUIT-TRAVELER.  
0850625 APPARATUS FOR THREADING OR LAYING ELECTRIC CONDUCTORS IN CONDUITS OR PIPES.  
0797457 CONDUIT-THREADER.  
0734267 CONDUIT-THREADING DEVICE.  
0690594 TRAVELER.  
0683845 APPARATUS FOR THREADING CONDUITS.  
0673478 CONDUIT-THREADER.  
0632353 TRAVELER FOR PIPES OR CONDUITS.  
0622531 Title is not available  
0603623 Title is not available  
0563360 Title is not available  

Matches 1 - 50 out of 57 1 2 >