| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 175323000 | Helix or helically arranged structure | 6 |
| 20080202816 | Torque Converter for Use When Drilling with a Rotating Drill Bit - A torque converter for use in drilling with a rotating drill bit, the purpose of the torque converter being to absorb impacts and bring about an axial movement of the drill bit when the torque exceeds a predetermined value. For this purpose the torque converter is composed of two cylindrical string parts connected through the bearing elements. The string parts are connected to each other through helical elements in such a way that relative rotation of the two cylindrical string parts brings about axial movement, which unloads the drill bit. | 08-28-2008 |
| 20080271926 | MOUNTING SYSTEM FOR A FIBER OPTIC CABLE AT A DOWNHOLE TOOL - Disclosed herein is a fiber optic cable downhole tool mounting system. The system includes, a downhole tool, a support member attached to the downhole tool and a fiber optic cable parameter transmissively mounted to the downhole tool by the support member. The support member has an elongated body with a pair of legs extending therefrom, the pair of legs intersect at an oblique angle and define a volume therebetween receptive of the fiber optic cable. The fiber optic cable is attached to the support member and the support member is attached to the downhole tool such that a parameter encountered by the downhole tool is sensible by the fiber optic cable. | 11-06-2008 |
| 20110155470 | DRILL STRING ELEMENT WITH INSTRUMENTS - A drill string element including an elongate tubular body delimiting an interior surface longitudinally including at least one portion of revolution and including a first hole provided in the elongate tubular body. That first hole includes a first end opening at the portion of revolution, and in a vicinity of the first end a longitudinal axis intersecting the interior surface at an intersection location. The longitudinal axis, in projection into a first plane passing through the central axis of the portion of revolution and containing the intersection location, forms a first angle of a value that is not zero and in projection into a second plane tangential to the interior surface at the intersection location forms a second angle of a value that is not zero. | 06-30-2011 |
| 20110203853 | Auger boring machine having spoils ejector - An auger boring machine having spoils ejector having a power source attached to an auger, a plurality of large casings extending linearly from the power source, a plurality of small casings located linearly within the large casings and centered within the large casings with the auger extending linearly within the small casings, a cutting head attached to the terminal end of the large casings, and a spoils ejector, with the spoils ejector attached to the auger and to the cutting head, with the spoils ejector located between the terminal end of the small casings and the cutting head, with the spoils ejector enclosed within the large casings, with the spoils ejector having a front, a back, first and second sides each attached to the front and to the back, first and second curved plates each attached the front, the back, and to the first and second sides, at least one of the sides having a collector aperture formed therein adjacent one of the curved plates, with the back having formed therein at least one spoils port. | 08-25-2011 |
| 20130014997 | Post Hole Digger - A post hole digger couples to the PTO shaft of a tractor and uses rotation from the PTO shaft to rotate an auger. A top support arm rotatably coupled to the top pin of the tractor's three point hitch supports the gearbox that translates rotation to the auger. A support frame extends upwardly from the right and left lift arms of the three point hitch and inwardly to support the top support arm from beneath. The support frame is shaped generally as an inverted “U,” with space created between the right and left lift arms to prevent interference with the rotating shaft that translates rotation from the PTO shaft to the gearbox. A shield coupled to the gearbox covers the moving parts of the joint between the rotating shaft and the gearbox and protects users during use of the auger. | 01-17-2013 |
| 20140102808 | DRILL STRING COMPONENTS HAVING MULTIPLE-THREAD JOINTS - Implementations of the present invention comprise drill string components having at least one thread extending around a body. The leading end of the thread can have a configuration having increased strength and resistance to jamming and cross-threading. In particular, the leading end of the thread can comprise a planar surface normal to the body. The leading end of the thread can provide an abrupt transition to full thread depth that helps reduce or eliminate cross-threading and can be oriented at an angle relative to the axis of the drill string component. The thread can further provide at least one of a variable thread width and a variable thread pitch configured to create an axial progressive fit. The thread can also provide a cylindrical thread root and a thread crest that circumscribes a frusta-cone over at least a portion of the axial length of the threads configured to create a radial progressive fit. | 04-17-2014 |
