Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7686105 | Drill, wall protector and drilling method A drill includes a main body and a high-hard tip attached to a front end of the body. The tip has a width greater than the diameter of the body and has an angular cutting portion. In order to form a hole having a greater distal end in a wall, the tip is attached on ... | 03/30/2010 |
| 7628232 | Rotary-percussion drill with a four-start helical shaft A rotary-percussion drill includes a four-start helical shaft (3) having a fourfold rotationally and mirror-symmetrical helix cross-section, with radially projecting convexly formed helical webs (4) extending from a concave groove bottom (5) up ... | 12/08/2009 |
| 7621351 | Reaming tool suitable for running on casing or liner A reaming tool includes a tubular body having a nose portion with a concave center. A plurality of blades defining junk slots therebetween extend axially behind the nose and taper outwardly from the exterior of the tubular body. Rotationally leading edges of the bla... | 11/24/2009 |
| 7546887 | Method and device for producing a borehole in the soil The invention relates to a method for producing a borehole in the soil, in which a drill pipe and a conveyor screw arranged inside the drill pipe are set into rotation and introduced into the soil, and in which outcropping soil material is loosened by means of at le... | 06/16/2009 |
| 7395880 | Mortar removal drill bit system A mortar removal drill bit system includes a toothed drill bit that includes an elongated rod that has a first end and a second end. A plurality of rectangular plates is attached to and extends laterally from the rod. Each of the plates has a distal edge with respec... | 07/08/2008 |
| 7371344 | Method and apparatus for manufacturing a blank for a rotary cutting tool A blank for a rotary tool for chip removing machining, such as a helix drill or an end mill is formed by advancing a mixture of hard metal powder and carrier through an extrusion passage. The mixture is fed past a core having pins secured thereto for forming respect... | 05/13/2008 |
| 7357200 | Earth auger An earth auger presents a shank having a spiral earth removing structure therearound. The structure first presents a series of spirally positioned housings with cutting teeth therein followed by a spiral cutting edge about the shank. The teeth are radially, vertical... | 04/15/2008 |
| 7357199 | Bit for excavation and compaction equipment for erecting piles, and excavation equipment provided with said bit Described herein is a bit (9) for excavation and compaction equipment (1) for erecting piles, the bit (9) being provided with a central body (21), an excavation screw (24) fixed to the central body (21), and a dislocating el... | 04/15/2008 |
| 7353892 | Guide frame for an earth drilling apparatus A guide frame (1) for an earth drilling apparatus includes a support plate (6) for holding the drive unit (7) and a handle frame (2) having handle sections (17, 18) for holding and guiding the earth drilling apparatus. Operator-con... | 04/08/2008 |
| 7299887 | Roller bit with a journal pin offset from the central axis thereof This invention relates to a single cone bit with offset axis and composite cones for oil and gas drilling, mining and other subterranean drilling operations. The bit consists of a head body and a cone. The cone section has a shape of composite cones. The outer circu... | 11/27/2007 |
| 7301066 | Method of making and using nanoscale metal Methods of treating ground water and methods for reducing contaminants (e.g., chlorinated compounds in contaminated ground water) to harmless compounds in the presence of an elemental metal treatment composition. Said methods comprise injecting a treatment solution ... | 11/27/2007 |
| 7267514 | Self-centering drill bit with pilot tip An elongate drill bit (20) with a longitudinal axis (X-X) has a shank (28), a working end (24), and a fluted section (26) between the shank and the working end. The shank, the working end and the fluted section are all formed integrally i... | 09/11/2007 |
| 7267510 | Foundation pile having a spiral ridge A foundation pile or pile segment is described that provides support for a structure such as a building foundation. The pile includes a generally solid body having a top end wall, a bottom end wall adapted for providing end load bearing capacity, and all around side... | 09/11/2007 |
| 7258180 | Rotary hammerdrill bit A rotary hammerdrill bit for use with a percussion drilling device or a hammer drilling device, with a shank and a drill head attached to or configured on the shank, wherein a front side pointing in the advance direction of the drill head has a main cutting plate fo... | 08/21/2007 |
| 7258178 | Auger planter An auger planter for forming small holes in the earth for the planting of flower bulbs, plant seedlings and plants, and for the insertion of termite monitors and baits. The auger includes a central shaft and a single helical flighting having its leading edge configu... | 08/21/2007 |
| 7234535 | Apparatus for turf aerification A novel drill for the aerification of turf grasses is disclosed. The drill comprises a chuck and a fluted turf drill bit held by the chuck. The chuck includes a locking mechanism which permits the chuck to rotate freely about its longitudinal axis when loaded in com... | 06/26/2007 |
| 7223049 | Apparatus, system and method for directional degradation of a paved surface An apparatus, system and method for directionally degrading a paved surface. A substantially cylindrical rotary tool may include cutting inserts embedded within its cylindrical surface. The tool may be rotated about a rotational axis extending from a top end of the ... | 05/29/2007 |
| 7210543 | Reversible power takeoff driven post hole digger A reversible post hole digger apparatus powered by a power takeoff shaft includes a transmission providing a reverse gear and a forward gear in a single housing. The apparatus has a power head disposed between a shaft connected to the power takeoff and an output sha... | 05/01/2007 |
| 7192094 | Auger flight support system An auger support assembly for use with an augering system for mining which bores a pair of side-by-side holes through a coal seam using dual side-by-side augers. Each auger includes a drilling section which is followed by a series of auger flights for conveying the ... | 03/20/2007 |
| 7163363 | Perforating drill The invention concerns a drill including a generally cylindrical body, tipped with a head and provided, over at least part of its length, generally spiral evaporating grooves. The groove(s) are delimited, over at least part of their length, by a succession of facets... | 01/16/2007 |
| 7140456 | Easy hold power auger A cutting auger has a main auger blade and a front subsidiary coaxial blade each having a drive core and a helical auger flight carried on the drive core for rotation about a longitudinal axis of the drive core with a cutting edge at an axial end face of the auger f... | 11/28/2006 |
| 7140814 | Spade-type drill bit having helical configuration A spade bit including a longitudinally extending shaft having a cutting member located at a distal end thereof. The cutting member comprises a pair of helically shaped, opposed blades joined along the longitudinal axis of the shaft and an axially extending pilot spu... | 11/28/2006 |
| 7137461 | Masonry drilling tool A masonry or rock drilling tool suitable for use with a rotary hammer has a drilling head (4, 104) at a forward end of the tool. A forwardly extending cutting plate (6, 106) is fitted or formed on the drilling head (4, 104). First and second opp... | 11/21/2006 |
| 7128174 | Drilling and anchoring device for diverse applications The present invention describes a drilling and anchoring device for diverse application, which possess as a basic principle to provide the formation of a specific drilling and anchoring device of the most diverse products to soils, fully based on a lower penetration... | 10/31/2006 |
| 7117960 | Bits for use in drilling with casting and method of making the same Bits for use in drilling with a well completion string having a bit body and a cutting face that includes a plurality of sets of cutter elements mounted on the cutting face. The bit body has a central longitudinal bore having an integrated female non-shouldered, sta... | 10/10/2006 |
| 7114584 | Hollow auger head assembly A hollow auger head assembly for penetrating geological formations that utilizes drill bit assemblies to which both blades and finger bits are attached. The method of securing the individual drill bit assemblies to the auger head reduces incidents of the drill bit a... | 10/03/2006 |
| 7104723 | Screeding apparatus and method A screed assembly apparatus for loose or plastic materials such as placed and/or poured, uncured concrete previously placed on the ground or another support surface, includes a screed frame, and mounted thereon, a striker for engaging and spreading the materials and... | 09/12/2006 |
| 7097396 | Drill bit An object of the present invention is to provide a drill bit which is simple in design, high in rigidity, and superior in durability and whose drilling function is in no way inferior to that of conventional drilling bits. To this end, in a drill bit comprising a cut... | 08/29/2006 |
| 7059431 | Self-penetrating drilling method and thrust-generating tool for implementing same The invention concerns a self-penetrating drilling method and a thrust-generating tool: the tool comprises N blades. Each blade comprised K drill cutters. The shapes, positions and orientations of said drill cutters are determined in the following manner: the k... | 06/13/2006 |
| 7055620 | Hand-held machine tool The invention is based on a hand power tool having an electric motor (12) located in a housing (10), via which an insertable tool (16) situated in a tool mount (14) is capable of being driven in a rotating manner, and having a safety devi... | 06/06/2006 |
| 7001120 | Drilling tool The invention relates to a drilling tool (36), in particular for working concrete, rock, masonry and suchlike materials, having a single- or multi-edge tool head with at least one cutting body (1) which comprises a central region (12) which is d... | 02/21/2006 |
| 7000604 | Cutting tool A cutting tool, in particular a tile cutting tool, with a base body, which can be clamped into a tool-holding device of a machine tool and driven to rotate, and with a cutting head that is set with cutting particles, and at least the cutting head and the base body a... | 02/21/2006 |
| 6994494 | Device for producing bored piles Device for producing bored piles having an auger, which along at least part of the auger length is surrounded by a rotating encasing tube and during boring the encasing tube is rotated in or counter to the rotation direction of the auger and in which the auger and t... | 02/07/2006 |
| 6976549 | Drilling tool The invention relates to a drilling tool (1), in particular for working concrete, rock, masonry and suchlike materials, having a tool head with cutting body (5) which has at least one front rake face (9, 10), at least one rear flank ([lacuna] | 12/20/2005 |
| 6959775 | Drill bit A drill comprising a shank part (11), which is adapted to be received in a drill holder of a drilling machine, and an opposite cutting end part (13). An intermediate fluted part (12) is provided, which defines at least one helical flute or chann... | 11/01/2005 |
| 6955227 | Auger for mixing and burrowing An auger to assist in ground-burrowing or mixing paint or concrete, is used by attaching it to an electric or cordless power source. The major advantages over previous augers are: a hex head design prevents slipping in the drill chuck, an offset boring tip provides ... | 10/18/2005 |
| 6955234 | Auger bit An auger has an outer blade and a center bit. The outer blade includes an outer ring and an inner hub, and the center bit inserts into the inner hub. The outer ring has an array of circumferentially-spaced teeth, and the inner hub is inwardly spaced from the outer r... | 10/18/2005 |
| 6953306 | Method of accurate trenchless installation of underground pipe A method for the trenchless installation of new underground pipe accurately on line and on grade by microtunneling to install a pilot tube, installing a drill string along the pilot pipe line using a directional drilling machine, installing a back reamer to the dril... | 10/11/2005 |
| 6951254 | Soil manipulating tool A soil manipulating tool is disclosed which has a handle (12) and a soil penetrating portion (14). The soil penetrating portion (14) is formed from a helical or spiral rod or wire (13) which defines a cavity (18). The rod or wire (... | 10/04/2005 |
| 6951258 | Hollow auger head assembly A hollow auger head assembly for penetrating geological formations that utilizes drill bit assemblies to which both blades and finger bits are attached. The method of securing the individual drill bit assemblies to the auger head reduces incidents of the drill bit a... | 10/04/2005 |
