Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7351012 | Rotational drive apparatus for screw pilings A rotational drive apparatus for screw pilings is described. The apparatus comprises a housing having a cylindrical pipe coupling adapted to receive a shaft of a screw piling therethrough. A detachable connecting element secures the coupling to the shaft at differen... | 04/01/2008 |
| 7243753 | Carrier vehicle for drilling or rockbolting machine The invention relates to drilling or rockbolting machines, for the execution of underground works, in particular in mining operations. The carrier vehicle comprises a chassis and four wheels, all driving wheels, with two wheels situated on the right-hand side of the... | 07/17/2007 |
| 7004262 | Electric fence post installer An electric fence post installer comprising a wheeled frame having a first upstanding support extending upwardly therefrom. A generally horizontally disposed boom arm is rotatably mounted on the upper end of the first support and has a carousel support secured to th... | 02/28/2006 |
| 6698978 | Rock drilling rig A rock drilling rig has a carrier (1) provided with a service platform (7) which is arranged on a boom (6). The carrier (1) is provided with a four link mechanism (8) which is swingable in a plane perpendicular to the longitudinal direction (2) of the car... | 03/02/2004 |
| 6681470 | Method of mounting an auger to a motor vehicle An auger mounting assembly includes a slide bearing assembly and a mounting plate. The mounting plate is attached to a motor vehicle such as an all-terrain vehicle. The slide bearing assembly is pivotally retained by the mounting plate. An auger mounting ... | 01/27/2004 |
| 6634436 | Mobile land drilling apparatus and method A mobile land rig and method are disclosed, for the transport, assembly, and disassembly of oil drilling equipment. A mobile telescoping substructure box includes at least one axle and coupled wheels lockable and releasable for engaging the ground and bei... | 10/21/2003 |
| 6602026 | Extendible drill support frame for mining apparatus and roof bolting equipment The present invention provides a mining apparatus for installing bolts into a mine entry, said apparatus including: a frame having a forward end, a rearward end and lateral sides; an upstanding bolter support wall attached to said forward end of said fram... | 08/05/2003 |
| 6598683 | Portable injection-casing driver A driver tool provides an apparatus and method for installing shaft objects such as casing, pipes, poles, bars, rods, piles or tubes into the ground or other surrounding media. The driver tool has a steel tower on which is mounted a pneumatic or hydraulic... | 07/29/2003 |
| 6276464 | Stake coupler for a horizontal directional drill A coupling for quickly and easily attaching and detaching stakes from the drive head of a horizontal directional drill. The coupling includes an upper coupler member and a lower coupler member. The lower coupler member slides into the upper coupler member... | 08/21/2001 |
| 6050345 | Ergonomic tool with lift assist mechanism An ergonomic demolition tool includes a jackhammer and a lift assist mechanism having a wheeled caster assembly. The lift assist mechanism has a frame which is movable between upper and lower positions to provide a lifting force to assist the jackhammer o... | 04/18/2000 |
| 5697457 | No load derrick for drilling rig A mobile drilling rig has a rectangular tubular derrick or mast normally transported on the truck in a generally horizontal attitude. The mast is pivoted to vertical at the drilling site. A drill rotating power head is connected to a pull-down system loca... | 12/16/1997 |
| 5363925 | Mobile drilling machine A mobile drilling machine adapted to be mounted on an all-terrain vehicle of the type principally utilized for recreational purposes. Secured to a reinforced rear luggage rack of the vehicle is an equipment supporting plate carrying a drill beam mounted t... | 11/15/1994 |
| 5168938 | Pile driver A pile driver includes an attachment frame fixed to a work arm of appropriate construction equipment that serves as a base machine, a vibration cylinder actuated and controlled by an electro-hydraulic hydraulic servo-valve and mounted on the attachment fr... | 12/08/1992 |
| 4842081 | Simultaneous drilling and casing device In well drilling, and in particular the horizontal drilling field, a simultaneous drilling and casing device is provided. A drill string driven in rotation by a revolving table has at its end a drilling tool 28 driven by a bottom motor 22 and, in its inte... | 06/27/1989 |
| 4363519 | Continuous mining machine A mining machine for performing a continuous mining operation in hard rock. The operating portions of the machine are mounted on substantial deck sections hingedly connected to each other to promote maneuverability of the machine in confined spaces. A min... | 12/14/1982 |
| 4324077 | Method of moving a drilling rig long and short distances A line of detachably connected skid frames is laid down at a first drilling position for supporting an oil well drilling rig having a base seated on the frames with some of them extending away from opposite ends of the base. After the well has been comple... | 04/13/1982 |
| 4078617 | Portable drill rig for boring underground inverted arcuate paths A portable drill rig having an inclined ramp is transportable in discrete sections with each section of the inclined ramp forming a separate truckbed chassis. In erection the front portion of the ramp is swung upwardly with on-site lifting apparatus. Supp... | 03/14/1978 |
| 3942593 | Drill rig apparatus There is disclosed herein a mobile well drilling rig apparatus adapted for rapid assembly and disassembly thereof. The drilling rigs of the invention comprise a trailerable telescoping mast assembly and a separate sectionable substructure assembly therefo... | 03/09/1976 |
