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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7523793 | Drilling head with protective screen A drill head for drilling machines having a protective screen for conveying the drilling slurry discharged from the drivers drill rods and related sleeves. A screen constructed according to the principles of the present invention reduces the slurry fallout area in t... | 04/28/2009 |
| 7350587 | Pipe guide A guide is disclosed for facilitating the movement of tubulars in well operations. In one aspect, the guide is a pipe guide with a base, an upper extension apparatus, a lower extension apparatus with a first end pivotably secured to the upper extension apparatus and... | 04/01/2008 |
| 7281886 | Suction device A suction device that is used with a power drilling tool for aspirating material removable during operation of the drilling tool, and which includes a suction head (20) displaceable relative to the drilling tool (2) in a direction opposite a drilling d... | 10/16/2007 |
| 7175371 | Protective shield for a tool A protective shield for a drilling or cutting tool having a cylindrical-shaped housing that has a front end and a back end, the front end able to fit flush against a working surface; and a spring having a first end and a second end, the first end able to receive the... | 02/13/2007 |
| 7080702 | Rotating deck bushing with dust guard system A rotary deck bushing having an outer body held in a fixed orientation within a drill deck and an inner bushing portion that is configured for rotatable positioning within the outer body portion. A floating center bushing is removable positioned within the inner bus... | 07/25/2006 |
| 7073612 | Surge device for air drilling A surge device providing a vent for bleeding pressure off an air drilled well and providing connectors for surge lines in the blooie line. The surge device has a hollow, abrasion resistant, tapered chamber into which two surge lines and the blow down line enter the ... | 07/11/2006 |
| 7011167 | Device for sealing a drill hole and for discharging drillings or stripped extraction material In a device for sealing a bore hole and discharging drill cuttings and stripped excavation material, including a housing adapted to receive sealing elements and an opening capable of being connected to the bore hole, one side wall of the housing is provided with at ... | 03/14/2006 |
| 6814527 | Debris collection system for use with hole cutting devices A debris collecting apparatus for use with ceiling cutting equipment for collecting debris resulting from the cutting of an opening in a ceiling. The debris collecting apparatus comprises a collection basket having an open upper end and a seal thereat for engaging t... | 11/09/2004 |
| 6666286 | Fluid circulating apparatus for drill There is provided a fluid circulating apparatus for a drill that requires only a small amount of coolant, as a suspension is collected and reused. The apparatus (1) for use with a drill (2) includes a suspension collecting device (3) that collects a suspe... | 12/23/2003 |
| 6505692 | Drill for forming undercuts in bores A drill for forming undercuts in cylindrical bores formed in stone or concrete and including a drilling member (2;22) having a stem (3;23) provided, at its opposite longitudinal ends, respectively, with a shank (4;24) receivable in a chuck of a hand-held ... | 01/14/2003 |
| 6196337 | Water pressure post-hole digger A water pressure operated post-hole digging tool. The tool includes a vertically elongate pipe with an enlarged mandrel member having a generally circular cross section mounted on its lower end, and an attachment for connecting the upper end of the condui... | 03/06/2001 |
| 5765654 | Device for collecting drilled material and dust A device, for collecting drilled material and dust produced by a drilling tool, has a flange part (1) with a central axis to be secured to a housing of the drilling tool, and an axially extending container (2) for receiving the drilled material and dust a... | 06/16/1998 |
| 5269386 | Self positioning dust seal holder A drilling apparatus, having a drilling tower, tiltable for angle drilling, on a drilling platform with an aperture for a drill string, includes a dust seal holder that extends into the aperture in the platform, the dust seal holder being connected to the... | 12/14/1993 |
| 5129470 | Drill hole filling method and apparatus The present invention relates to a method for use in connection with a drilling apparatus for drilling a hole and also filling the drilled hole with a filler. A hole is drilled by using a tubular drill rod with a crushing tool provided at the end of the d... | 07/14/1992 |
| 4974689 | Drill hole filling method and apparatus A drill hole filling method involves drilling of a hole by using a tubular drill rod through which, in the course of drilling, a flushing medium is supplied through at least one opening in a crushing tool into an annular space, defined by the hole and the... | 12/04/1990 |
| 4811799 | Banjo box and blooie line spool A fluidtight housing such as a banjo box receives and redirects the debris-laden upward flow of fluids from a reservoir. The housing connecting the wellhead of the reservoir with a flowline positioned at an angle other than the vertical receives fluid and... | 03/14/1989 |
| 4750571 | Screen placement method and apparatus A screen placement apparatus and system wherein the apparatus includes a motor for providing rotational torque to an auger received within a ground screen and a disposable cutting tip having a cutting diameter equal to or greater than the outer diameter o... | 06/14/1988 |
| 4736808 | Percussive tool with high pressure fluid jet In a percussive tool in which a very high pressure and preferably cavitating water jet is directed through an opening in the working surface of the tool, the jet is formed by a nozzle positioned in a cavity behind the opening and decoupled from the tool b... | 04/12/1988 |
| 4673034 | Cased water wells having flexible pad A cased water well comprising a generally tubular water well casing extending from subgrade to above grade. A flexible pad is attached to the water well casing for preventing aquifier contamination. The pad has an upwardly extending, generally tubular, fl... | 06/16/1987 |
| 4650013 | Chip sampler A chip sampler including a sampler barrel aligned with the stern of a drill pipe to form an extended annular space to receive cuttings from a drilled hole. The sampler barrel carries a reject port in communication with the entire annular space and an acce... | 03/17/1987 |
| 4586573 | Rotary expansion tool for reaming frustoconical undercuts in the walls of cylindrical holes An improved rotary expansion tool for reaming frustoconical undercuts in the walls of cylindrical holes is disclosed. The tool is comprised of an elongated sheath with a ram disposed in sliding engagement therein. The ram is provided with an enlarged head... | 05/06/1986 |
| 4502554 | Expansible tool for reaming frustoconical undercuts in cylindrical holes An improved expansible rotary power tool for reaming frustoconical undercuts in cylindrical holes contained in dense concrete, such as flint and chert aggregates, comprises a tool having a hollow elongated sheath provided with a pair of opposing longitudi... | 03/05/1985 |
| 4420277 | Mine roof driller-bolter apparatus and method An apparatus for bolting the roof of an underground mine is disclosed comprising a mobile frame, a boom extending from the frame and a housing provided at the end of the frame. The housing supports an upwardly extending stinger, a drilling mechanism inclu... | 12/13/1983 |
| 4377213 | Dual bushing centralizer A dual bushing centralizer is provided for a rock drill. The one bushing is provided for stabilizing the rock bit and a second bushing is provided which stabilizes the drill rod. An elastomeric stinger encapsulates both bushings and also provides a noise ... | 03/22/1983 |
| 4372401 | Drill tool A tool for drilling a cylindrical hole with an enlarged end undercut portion comprises a shank with cutting edges and a drill collet screwed to the shank by a knuckle thread. The collet is provided with a stop collar having a semispherically-shaped face s... | 02/08/1983 |
| 4247122 | Dust sealing mechanism A dust seal for a tool device, including a bit receiving end, which comprises typically, an elastomeric material such as neoprene and includes a bit clamping or first end portion having a first axially extending opening of predetermined dimension and havi... | 01/27/1981 |
| 4214317 | Protective apparel An article of apparel for shielding portions of the body from flying debris such as saw splinters, drill chips, dust, grit, and other particulate matter resulting from overhead work with a hand-held tool, includes a sleeve with an arm-fitting cuff for con... | 07/29/1980 |
| 4205728 | Suction attachment for a drilling tool A suction attachment for use with a drilling tool includes a muzzle part forming an opening through which a drill bit extends into contact with the material to be drilled. The muzzle part has a suction aperture communicating with the drill bit opening and... | 06/03/1980 |
| 4182424 | Drill steel centralizer A feed beam for a rock drill has a drill steel centralizer at its front end. The centralizer comprises a thick, cylindrical rubber sleeve which has a clearance to the drill steel. An annular piston is arranged to axially compress the rubber sleeve axially... | 01/08/1980 |
| 4113037 | Rock drill A rock drill comprises a shaft having a leading and a trailing end, a shank connected to the trailing end, and a drill head connected to the leading end of the shaft. Means for transporting drilling from the leading end toward the trailing end of the shaf... | 09/12/1978 |
| 4013133 | Apparatus with a motor-driven material removing tool, especially for cutting concrete, stone or the like An apparatus with a motor driven material removing tool for cutting, drilling, milling, sawing or grinding of concrete, stone or the like. The apparatus comprises three spaced apart operational groups, namely a working group, a vacuum source and control g... | 03/22/1977 |
| 3936213 | Device for use with drills or the like for the collection of working debris A collector for use on or in association with drills or other tools which in use produce dust, splinters, powder, chips, shavings or other debris. It comprises a hollow annular housing which can be attached to the working component of the tool in the vici... | 02/03/1976 |
| 3934661 | Dust cup A dust cap particularly for use with an overhead rotary hammer. The dust collector is a cup-like member with a bellows side wall, integrally formed in one piece. It has a thickened neck to fit on the tool shank below the chuck, thereby encompassing the ch... | 01/27/1976 |
