Bizarre Patents
User-operated amusement apparatus for kicking the user's buttocks
An apparatus including a user-operated and controlled apparatus for self-infliction of repetitive blows to the user's buttocks by a plurality of elongated arms bearing flexible extensions that rotate under the user's control.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8037945 | Atomic force microscope with combined FTIR-Raman spectroscopy having a micro thermal analyzer An atomic force microscope is provided that includes a micro thermal analyzer with a tip. The micro thermal analyzer is configured for obtaining topographical data from a sample. A raman spectrometer is included and is configured for use in obtaining chemical data f... | 10/18/2011 |
| 7414241 | Laser device A laser device includes a virtual source configured to aim laser energy that originates from a true source. The virtual source has a vertical rotational axis during vertical motion of the virtual source and the vertical axis passes through an exit point from which t... | 08/19/2008 |
| 7338051 | Tool holder for a rotary hammer A tool holder (1) for a rotary hammer which has a tube like tool holder main body (10) having a side wall formed with through holes (11) for receiving corresponding locking bodies (12) and formed with additional through holes (40).... | 03/04/2008 |
| 7320368 | Power impact tool The object of the invention is to ease of operation of the power impact tool. Such object is achieved by a representative power impact tool according to the invention including a motor, a tool bit, a trigger and a mode changing member. The trigger is manually operat... | 01/22/2008 |
| 7308949 | Concrete drill A concrete drill for drilling concrete or the like by a diamond bit (5) attached to a front end of a bit drive shaft (4) projected forward from a main body (1) by driving to rotate the bit drive shaft (4) by a drive source (2) cont... | 12/18/2007 |
| 7191847 | Drive for a motor-driven hand-held tool A drive for a motor-driven hand-held tool includes a motor (17) and a gear mechanism (20) for converting a rotational movement of the motor (17) into a reciprocating movement of the reciprocating drive element (30) for a working tool, wit... | 03/20/2007 |
| 7073607 | Operating system for hydraulic rock drill A hydraulic rock drill comprises a housing having a piston and valve bore formed therein, a rotation motor, and a fluid connection and fluid reservoir interposed between the housing and the rotation motor. Fluid connections to the hydraulic rock drill comprise a sin... | 07/11/2006 |
| 7048076 | Percussion electrical hand held tool An electrical hand-held tool includes an electric motor (2) having a rotor shaft (3) extending transverse to the tool percussion axis (A), a rotor sheet stack (4) supported on the rotor shaft, and a pinion (5) supported on the rotor shaft... | 05/23/2006 |
| 7032684 | Method of opening joints between drilling components, and rock drill A rock drill includes a string of components interconnected by screw threads and connected to a shank. A percussion piston is reciprocated against the shank during a drilling operation, while a support device applies axial support to the rear of the shank, to enhanc... | 04/25/2006 |
| 6948573 | Rock breaker tool The device for breaking rocks includes a hollow cylindrical chamber having a closed lower end, a closed upper end and an access aperture in the closed upper end and an outer circumstantial surface. A cylindrical plunger is longitudinally-reciprocally disposed within... | 09/27/2005 |
| 6902012 | Percussion electrical hand-held tool An electrical hand held tool for producing at least a percussion movement of a working tool includes an electrical drive, a first, oscillating subassembly including a percussion mechanism (2) and a rotor (5) of the electrical drive for transmitting tor... | 06/07/2005 |
| 6843329 | Rotary percussion device for a drill column The inventive rotary percussion device (1) used for driving at least one drill column (2) disposes of a percussion device (6) and a rotary device (5) and of an insertion end (3), which is rotatably mounted in a device body (8) and which has an axial boring, in which... | 01/18/2005 |
| 6708778 | Hydraulic unit with increased torque A hydraulic unit includes a case, a liner contained in the case, and a top cap and an opposing bottom cap plugged at the front and rear ends of the case. The unit further includes a spindle disposed in the liner and provided with a large diameter section. The large ... | 03/23/2004 |
| 6705407 | Rock drilling and mounting frame A rock drill includes a mounting frame to which a hammering apparatus and a rotating apparatus is arranged. The mounting frame is made maneuverable with respect to a feeding beam by means of slide blocks fastened to it, whereby a separate carriage is not needed betw... | 03/16/2004 |
| 6273199 | Arrangement in rock drill and method of controlling rock drilling An arrangement in a rock drill comprising a shank and a percussion piston and lifting sleeve for moving the shank towards percussion piston, and a method of controlling rock drilling. The arrangement comprises a lifting sleeve around the shank and a plura... | 08/14/2001 |
| 6202763 | "Twin-impact" double-blow drilling apparatus A drilling apparatus 1 having a twin-impact system can work continuously with a shank end 5 is provided with a compensation ring 10 on the rotary impact side, which has a material with hardness that is lower than that of the material of the pipe and strik... | 03/20/2001 |
| 6119793 | Rock drill The rock drill (9) includes a reversible rotary motor (10) and a percussion unit (11) with a percussion valve (17). Rotary unit and Percussion unit (11) are operated via separate valves (39, 46) in a control unit (34). The percussion frequency of the perc... | 09/19/2000 |
| 5896937 | Buffer mechanism of hydraulic impact apparatus The present invention relates to a buffer mechanism of a hydraulic impact apparatus of a rock drill, and the like, and the buffer mechanism reduces damage by buffering the reflected energy from a shank rod (2), and enables to apply impact by advancing a b... | 04/27/1999 |
| 5730230 | Rotary percussion drill A rotary percussion drill for mining, rock drilling and similar operations is provided. The drill combines a rotation portion with a percussion portion to impart a simultaneous rotational and reciprocating percussive action to the drill steel or other wor... | 03/24/1998 |
| 5667022 | Hydraulic impact device with continuously controllable impact rate and impact force An impact device 1 that is continuously controllable in terms of impact rate and impact force contains a percussion piston 25 that can move back and forth in the inner boring of the cylinder 3, and that is controlled via a rotary valve 15 having as rotary... | 09/16/1997 |
| 5458205 | Liquid driven hammer machine Liquid driven hammer machine with a machine housing (1) and a hammer piston (2) moveable to-and-fro in guides (4,5) in the machine housing. The guides are made with an intermediate section (6) and end sections (7,8) on either sides thereof. The slot betwe... | 10/17/1995 |
| 5415240 | Drilling device for a rock drill The invention concerns a rock drill (2) for activating a rotatable and reciprocable drill steel assembly (FIG. 1 ). A reversible motor (50) is coupled to a striking bar (3) for rotating the drill steel. The striking bar is struck by a percussion piston (1... | 05/16/1995 |
| 5351763 | Arrangement for an axial bearing in a drilling machine The invention relates to an arrangement for an axial bearing in a drilling machine. The drilling machine includes a frame (6), a percussion device (1) fitted in the frame, and a shank (2) positioned on an axial extension of the percussion device. The fram... | 10/04/1994 |
| 5289887 | Method of operating an earth boring machine In a method of operating a ram boring machine having a rotatory-thrust drill rod an impact force is applied to the rear end of the drill rod. The boring machine includes a thrust unit and a striking tool that are combined to form a thrust/percussion aggre... | 03/01/1994 |
| 5207280 | Device in hammer machines Device in hammer machines. The device comprises a machine housing (1) and a hammer piston (2) movable to-and-fro in the machine housing. A drilling tool connected to the machine housing comprises a drill bit (5), a set of tubes (4) for rotating the drill ... | 05/04/1993 |
| 5161624 | Tool for driving fastening elements into hard receiving materials Tool for driving fastening elements into a hard receiving material, such as concrete, masonry, rock and the like, has a first device (1) for drilling a fastening element into the hard material and a second device (2) for axially propelling the fastening e... | 11/10/1992 |
| 5092411 | Drilling apparatus A drilling apparatus, especially for drilling blast holes, includes a carriage, a drilling rod, a pressure-operated drive system movable along the carriage for transmitting a back and forth rotation to the drilling rod, a flushing head arranged on the car... | 03/03/1992 |
| 5064003 | Hydraulic drilling machine A hydraulic drilling machine has a drilling tool connected to a hydraulic motor, a hydraulic percussive mechanism connected through a rotatable fluid distributor to pressure and discharge lines, and a flow governor made up of a non-return valve and a flow... | 11/12/1991 |
| 5010963 | Hydraulic drilling machine A hydraulic drilling machine comprises a drill tool (1) connected to a hydraulic motor (3), a hydraulic percussive mechanism (4) connected via a hydraulic distributor (15) to a hydraulic pressure line (11) and to a hydraulic discharge line (21), and a mea... | 04/30/1991 |
| 4993504 | Device for efficient energy transfer and damping of impact drilling machines Device in impact machines. The device comprises a first chamber (5) which is connected to an accumlator (6) and the pressure of which is used to hold together a set of rods (2) forming part of the drill tool. Furthermore there is a second chamber (7) to d... | 02/19/1991 |
| 4858701 | Fluid-powered impact device and tool therefor A percussion tool usable as part of a single tool impact device or a multi-tool impact device. In each case, the tool is rotatably driven by a high-torque rotary actuator with the tool being longitudinally splined and received within a correspondingly lon... | 08/22/1989 |
| 4854394 | Arrangement for supporting of a shank of a drilling machine An arrangement for mounting and supporting of a shank of a drilling machine comprising a body supported by a carriage, a percussion piston mounted in the body, and supporting housing positioned at a front side of the body, and a shank piece mounted in the... | 08/08/1989 |
| 4846288 | Hydraulically powered rotary percussive machines A single supply line feeds hydraulic fluid under pressure to a hydraulic percussive machine with a percussion motor and a rotation motor. A constant flow device is positioned between the supply line and the rotation motor.... | 07/11/1989 |
| 4846289 | Arrangement for supporting of an axial bearing of a drilling machine An arrangement for supporting of an axial bearing of a drilling machine which comprises a body (1) supported by a carriage (15) and a rotation bushing (5) mounting rotatably in the body for rotation of a shank (10). An axial bearing (8) is arranged in the... | 07/11/1989 |
| 4842080 | Arrangement for mounting of a rotation element in a drilling machine An arrangement for mounting of a rotation element in a drilling machine comprising a body (1) and a rotation element (8) mounted by means of bearing surfaces (8a, 8b) rotatably in the body for rotation of a drill shank (9). The rotation element is rotated... | 06/27/1989 |
| 4842079 | Body construction for a drilling machine A body construction for a drilling machine comprising a body provided with end covers, a percussion means mounted in the body, and a rotation means positioned on an axial extension of the percussion means for rotating a shank. In order to avoid the use of... | 06/27/1989 |
| 4732218 | Hammer drill with separate and interconnectable drive means A hammer drill includes a unit for supplying impact force to a tool inserted into the hammer drill and a unit for supplying rotational forces to the tool. A first drive motor drives the impact force unit and a second drive motor drives the rotational forc... | 03/22/1988 |
| 4593768 | Hydraulically operated impact device In a hydraulic rock drill there is a hydraulic so called recoil damper that damps the reflected shock waves that propagates from the rock backwardly through the drill stem. The damper comprises a support piston (68) slidably in a cylinder so that a pressu... | 06/10/1986 |
| 4576240 | Hydraulic impact device A hydraulically powered impact device for rock drilling having an impact piston driven by a hydraulic drive unit and a shank rod adapted to be struck by the impact piston. A motor imparts a rotary motion to the shank rod by rotating a sleeve through a gea... | 03/18/1986 |
| 4494613 | Method and apparatus for driving hollow piles into the ground A method and apparatus for driving a hollow pile into the ground. By using a hollow rod having a short auger fixedly secured to a leading end portion thereof, excavated earth and sand are lifted to and around the upper portion of the auger where compresse... | 01/22/1985 |
