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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 |
| 8051929 | Core drill bits with enclosed fluid slots Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughou... | 11/08/2011 |
| 7984773 | Sonic drill bit for core sampling A drill bit for core sampling includes a body having a central axis and first end having a tapered outer surface and a radius transverse to the central axis, and an insert having a cutting surface on the first end oriented at an axial angle relative to the radius to... | 07/26/2011 |
| 7958954 | Drill bits with enclosed slots Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughou... | 06/14/2011 |
| 7909119 | Drill bits with notches and enclosed slots Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughou... | 03/22/2011 |
| 7874384 | Drill bits with increased crown height Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughou... | 01/25/2011 |
| 7828090 | Drill bits with enclosed fluid slots and internal flutes Core drill bits with long crown heights are described herein. The core drill bits have a series of slots or openings that are not located at the tip of the crown and are therefore enclosed in the body of the crown. The slots may be staggered and/or stepped throughou... | 11/09/2010 |
| 7621352 | Apparatus, system, and method for catching a core A core catcher includes a catcher rod removably attachable to a core drill. The catcher rod is inserted through a pilot hole in a substrate from which a core is to be removed. A catching element is removably attachable such as by clamping the catching element to a d... | 11/24/2009 |
| 7373994 | Self cleaning coring bit A coring member useful in wellbore excavating operations comprising at least one segment disposed onto the end of a shaft, where a channel is formed between each at least one segment. The at least one segment has an impeller like arrangement that on rotation produce... | 05/20/2008 |
| 7347276 | Adjustable garden tool A manual garden tool having an elongate shaft with an actuator rotatably mounted at its lower end, tine(s) mounted to the actuator, and a cam surface at the lower end of the shaft in contact with a surface of each tine such that, as the actuator is rotated between t... | 03/25/2008 |
| 7341118 | Rotating dry drilling bit A rotating dry drilling bit for low thrust drilling of an annular bore hole into a body of rock and obtaining an extremely small diameter core sample comprises a bit crown moulded to the end of an annular steel body. The bit crown comprises a plurality of radially e... | 03/11/2008 |
| 7341120 | Blade edge structure for core drill A cutting portion structure of a core drill having diamond grains may affect deformation of a tip end portion of a cutting blade after extended use. A core drill A comprises cutting blades 2 formed at an opening end portion 4 of a cylindrical core body... | 03/11/2008 |
| 7234547 | Apparatus and methods for sponge coring A sponge core barrel for use in performing sponge coring and methods of assembling the sponge core barrel, as well as methods of performing sponge coring. The sponge core barrel includes an outer barrel assembly, a core bit secured to a lower end thereof, and an inn... | 06/26/2007 |
| 7231991 | Apparatus and methods for sponge coring A sponge core barrel is disclosed for use in performing sponge coring and methods of assembling the sponge core barrel, as well as methods of performing sponge coring. The sponge core barrel includes an outer barrel assembly, a core bit secured to a lower end thereo... | 06/19/2007 |
| 7219753 | Tool holder for annular core bit A tool holder (1) for an annular core bit has a bit-side axial stop surface (4) and an end-side axial splined profile (3) extending in a bit direction. The tool holder has an outer thread (5) forming radial spline projections of the splin... | 05/22/2007 |
| 7185720 | Hole digger A hole digger for digging a hole in ground. The hole digger includes a handle end for manually turning the hole digger. The hole digger includes a support section extending from the handle end. The hole digger includes a digging end extending from the support sectio... | 03/06/2007 |
| 7171713 | Multi-tool for use with golf carts A multi-purpose golfing tool is provided with an elongated body having an arm that extends angularly from one end of the body to releasably engage the rearward portion of a golf cart seat. The opposite end is provided with a feature for engaging the steering wheel, ... | 02/06/2007 |
| 7131506 | Flightless rock auger for use with pressure drills with quick attachment and method of use A flightless rock auger is used for drilling postholes through rock with the use of hydraulic pressure and at slow revolution per minute. The rock auger is used in combination with a conventional flighted auger used for drilling postholes in dirt and clay. During a ... | 11/07/2006 |
| 7128165 | Excavation system and method A system and method of cutting a core out of a finished surface for keyhole excavation provides a truck with a turret to which a support arm supporting the cutter assembly is mounted, and a stabilizing member remote from the turret, which allows the turret to be rot... | 10/31/2006 |
| 7073797 | Tool holder for annular core bit A tool holder (1) and a shank (8) for quick mounting and dismounting an annular core bit (2) both include cooperating respective guide members (4, 4′) provided at their bit-side ends, flanges (3, 9) arranged coaxially with the gu... | 07/11/2006 |
| 7028790 | Rotary drill bit A drill bit includes a body defining an axis and first and second cylindrical portions, a coupling adapted for connection with a rotary driver, and a depth stop adjustably secured to a first portion by a plurality of adjusting fasteners in a manner to limit penetrat... | 04/18/2006 |
| 7021404 | Method and device for deviated coring and/or drilling The invention concerns a method and a device for coring and/or drilling through a wall of a bore hole, to deflect transversely from a longitudinal direction of the hole, further comprising selecting a core barrel (1) equipped with a core bit (3) having... | 04/04/2006 |
| 7008149 | Tool kit and method of using A new and improved tool kit and method of using the tool kit for use in making a substantially perpendicular indented surface around an existing threaded bolt hole in a workpiece is disclosed. The kit comprises a guide rod and a grinder drill bit. The guide rod has ... | 03/07/2006 |
| 7004265 | Apparatus and methods for sponge coring A sponge core barrel for use in performing sponge coring and methods of assembling the sponge core barrel, as well as methods of performing sponge coring. The sponge core barrel includes an outer barrel assembly, a core bit secured to a lower end thereof, and an inn... | 02/28/2006 |
| 6959771 | Abrasive and boring method using the same The present invention relates to an abrasive that decreases the heat generation by a core bit due to boring and allows the boring of a deep hole while maintaining the boring speed even when a deep hole is cut using a dry method. This abrasive contains abrasive grain... | 11/01/2005 |
| 6948574 | Ultrasonic annular core bit A core bit for abrasive cutting including a cylindrical tube (3) provided at its end surface with cutting or abrasive bodies (2) and a cover (4) provided at an opposite end surface of the cylindrical tube (3) and secured thereto and havin... | 09/27/2005 |
| 6945339 | Core drill A plurality of chip evacuating grooves (16, 26, 36, 46a, 46b) in a vertical direction in parallel with a rotational axis of a core main body (14) are formed at an outer peripheral face of the core main body (14) in a circumf... | 09/20/2005 |
| 6908264 | Quick change drill bit A quick-change core drill includes an adapter and a generally tubular drill barrel. The adapter comprises a first end adapted to be removably connected to a drill spindle and a second end adapted to be removably connected to the drill barrel. The drill barrel includ... | 06/21/2005 |
| 6814167 | Boring device and boring method A boring device for producing a bore with a casing tube has a linkage, a boring tool, which can be fixed to the lower end of the linkage, a mounting frame for mounting on the casing tube, a drive and a connecting device, which is used for producing a rotary connecti... | 11/09/2004 |
| 6732818 | Oriented core barrel system A device for preserving the orientation of a core is described. A core barrel is attached to a rotatable orienting rod. A plurality of projections are located on an inner surface of the core barrel. Three projections are grouped together and opposite from a fourth p... | 05/11/2004 |
| 6719070 | Apparatus and methods for sponge coring A sponge core barrel for use in performing sponge coring and methods of assembling the sponge core barrel, as well as methods of performing sponge coring. The sponge core barrel includes an outer barrel assembly, a core bit secured to a lower end thereof, and an inn... | 04/13/2004 |
| 6619413 | Flightless rock auger for use with pressure drills with quick attachment and method of use A flightless rock auger is used for drilling postholes through rock with the use of hydraulic pressure and at slow revolution per minute. The rock auger is used in combination with a conventional flighted auger used for drilling postholes in dirt and clay... | 09/16/2003 |
| 6558089 | Extender assembly for core drill A core drill extender apparatus comprises an extender tube that is adapted to make a screw connection to a driver, and a connector assembly releasably mounted in the front end of the tube for connecting the extender tube to a core drill. The connector ass... | 05/06/2003 |
| 6514017 | Core drill piloting system A pilot tool assembly for a core drill comprises a pilot tool unit that fits within the core drill and expandable means engagable with the interior surface of the core drill for releasably locking the pilot tool unit to the core drill, the pilot tool asse... | 02/04/2003 |
| 6494276 | Rock auger with pilot drill A rock auger for drilling postholes through rock without the use of hydraulic pressure and at a slow rate of revolutions per minute can function utilizing only the weight of the auger, shaft, and/or boom providing a floating auger to reduce shock and vibr... | 12/17/2002 |
| 6412575 | Coring bit and method for obtaining a material core sample The present invention provides a brush bit for cutting a core sample from an unconsolidated formation with reduced fragmentation or damage to the core sample by using a plurality of stiff bristles to cut rock from around the core sample. The present inven... | 07/02/2002 |
| 6394717 | High speed-perforating apparatus Disclosed is a high speed-perforating apparatus 1 comprising a rotor 17 into and through which a cylindrical rotary shaft 11 is integrally inserted, a stator 18 disposed around the outer periphery of the rotor 17 and a core bit 13 which is directly connec... | 05/28/2002 |
| 6158534 | Core sampler A core sampler, particularly for oil prospecting, including a coring bit (2), an outer barrel (3) for rotating the coring bit (2), and an inner barrel (5) for receiving the core sample (7) in its internal space (8) during coring, the inner (5) and outer (... | 12/12/2000 |
| 6129163 | Flightless rock auger with quick attachment and method of use A flightless rock auger For drilling postholes through rock without the use of hydraulic pressure. The rock auger has a plurality of teeth extending downwardly at a selected angle from the edge of a cylinder connected to a quick connect shaft. The rock au... | 10/10/2000 |
| 6024168 | Wellborne mills & methods A wellbore mill has been invented that has a body having a top and a bottom and a first fluid flow channel extending longitudinally therethrough from top to bottom, the first fluid flow channel having an upper end and a lower end, the lower end of the fir... | 02/15/2000 |
| 5980168 | Hollow crown drill A crown drill including a hollow cylindrical carrier body, which is formed of two coaxially arranged tubes connected with each other, and a cutting member attached to the carrier body and projecting axially beyond the leading end of the carrier body.... | 11/09/1999 |
