Quotables
"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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 |
| 7779930 | Hydraulic impact hammer with overpressure and piston-overtravel protection The invention relates to a striking device (5) comprising a striking mechanism (8) which is driven by a pressure medium. Said device comprises a percussion piston (13) which can be displaced back and forth by means of a control device and a cont... | 08/24/2010 |
| 7318485 | Method of Controlling the direction of rotation of a power tool The invention discloses a power tool for screwing or drilling having a motor for driving a drive shaft, a controller for controlling the power tool, a motor switch for switching the motor on and off, switch for reversing the power tool between clockwise and counter-... | 01/15/2008 |
| 7261167 | Method and system for predicting performance of a drilling system for a given formation A method and apparatus for predicting the performance of a drilling system for the drilling of a well bore in a given formation is disclosed. The method generates a geology model of a given formation. The geology model includes a geology characteristic of the given ... | 08/28/2007 |
| 7237622 | Pneumatic tool having pressure release device A pneumatic tool includes a rotor rotatably received in a housing, a driving shank coupled to the rotor, for being rotated by the rotor and by a pressurized air and having one end for driving a fastener. A pressure releasing device may release the pressurized air af... | 07/03/2007 |
| 7222680 | Pneumatic motor improvements and pneumatic tools incorporating same A pneumatic motor having a motor chamber having an inner surface with an eccentric longitudinal axis, a motive gas fluid inlet, and at least one end wall located transversely to the longitudinal axis with an exhaust aperture located therethrough. A rotor is rotatabl... | 05/29/2007 |
| 7198116 | Wholly air-controlled impact mechanism for high-speed energy-accumulating pneumatic wrench A wholly air-controlled impact mechanism invented for creating a more compact and powerful pneumatic wrench comprises a flying hammer, a pressure impulse generator and a pressure container containing the hammer and the generator. The main part of the flying hammer i... | 04/03/2007 |
| 7165469 | Shift rod piston seal arrangement for a vibratory plate compactor An easily accessible phase adjustment mechanism for a vibratory plate compactor includes an improved seal arrangement to protect against leakage of internal lubricating oil into the hydraulic cylinder providing fluid pressure to the adjustment mechanism. An easily d... | 01/23/2007 |
| 7146715 | Spin pressure power tool Apparatus for installing a rivet nut or the like having an intentionally threaded shaft wherein the apparatus includes a hydraulically geared power tool having an inner hydraulic fluid containing a chamber and a screw adapted to engage the threaded shaft of the nut ... | 12/12/2006 |
| 7093743 | Pneumatically operated power tool having mechanism for changing compressed air pressure A pneumatically operated power tool such as a screw driver, a nail gun and an impact wrench those being driven by a pneumatic pressure. A pressure reduction valve is provided between a connector connected to a compressor and a compressed air chamber defined in an ou... | 08/22/2006 |
| 7040414 | Pneumatic tool A pneumatic tool includes a housing, a driving mechanism, a rear cap, a direction controller, a speed controller, and an operating member. The housing is formed with a component chamber and an intake passageway. The driving mechanism includes an output shaft rotatab... | 05/09/2006 |
| 7032881 | Switch mechanism for a pneumatic tool A switch mechanism for a pneumatic tool comprises a choke ring having an air hole disposed in an air passage of the pneumatic tool; A control rod is swayably inserted through the air hole with a first end of corresponds to a trigger of the pneumatic tool; A choke me... | 04/25/2006 |
| 7032685 | Fastening tool Disclosed is a fastening tool equipped with a rotatively hitting mechanism comprising a cylinder disposed crossing a rotary axle of an anvil shaft at a right angle, a piston mounted slidably on and engaged with the cylinder, an oil passage communicating the inside o... | 04/25/2006 |
| 7032689 | Method and system for predicting performance of a drilling system of a given formation A method and apparatus for predicting the performance of a drilling system for the drilling of a well bore in a given formation includes generating a geology characteristic of the formation per unit depth according to a prescribed geology model, obtaining specificat... | 04/25/2006 |
| 6959967 | Hammer with high pressure shut-off A fluid-powered impact vibrator (5), in particular a hydraulic hammer, comprising a fluid-powered percussion hammer (8) with a percussion piston (18) that is moved back and forth under the effect of a control means (10) and comprising a g... | 11/01/2005 |
| 6932165 | Controlling mechanism of pneumatic tool A controlling mechanism of pneumatic tool. The controlling mechanism is formed with a radial hole in which a speed adjustment button and a direction switching button are disposed. A pad member is disposed between the speed adjustment button and direction switching b... | 08/23/2005 |
| 6902011 | Variable torque impact wrench Disclosed herein is a fluid control system for varying the power available to a fluid powered tool, a hydraulically driven impact wrench. The system disclosed herein varies power available to the tool by use of a bypass mechanism that is downstream of a directional ... | 06/07/2005 |
| 6725948 | Method of regulating the feed force of a drilling device In a method of regulating the feed force of a drilling device having a hydrostatic bore hole motor at the end of a linkage provided with a rotary and a feed drive, the feed of the linkage is set as a function of the pressure of the drive fluid for the bore hole moto... | 04/27/2004 |
| 6581696 | Processes of determining torque output and controlling power impact tools using a torque transducer An impact tool having a control system for turning off a motor at a preselected torque level.... | 06/24/2003 |
| 6466927 | Method for creating a process capability database A procedure and method for eliciting expert information on process capability and thereafter manipulating the elicited information in such a manner that it can effectively be used in a process capability database that is operating in a six sigma regime. T... | 10/15/2002 |
| 6334494 | Control unit for hydraulic impact wrench A pressure leading path in a impact type tool is branched halfway through a bypass passage for connecting a high pressure chamber H with a low pressure chamber (L). The branch includes a first fixed aperture leading to the high pressure chamber (H). The b... | 01/01/2002 |
| 6311786 | Process of determining torque output and controlling power impact tools using impulse A process to more accurately determine torque output of power impact tools using impulse. Also disclosed are processes for controlling power impact tools, in particular a mechanical impact wrench, by determining the impulse of the tool impacts and derivin... | 11/06/2001 |
| 6205894 | Automatic stop device for screw striking machine An automatic stop machine for a screw striking machine includes a driver bit, an air pressure cylinder having a piston, and an air motor driving the piston and rotationally driving the driver bit. The automatic stop machine comprises an open/close valve, ... | 03/27/2001 |
| 6179063 | Impulse wrench The present invention relates to an impulse wrench for use in conjunction with a fastener engaging tool and a power supply to selectively rotate threaded fasteners. The wrench comprises a housing and an impulse manifold rotatably mounted within the housin... | 01/30/2001 |
| 6164393 | Impact tool A hydraulic impact tool for use in a well, such as an oil or gas well, comprising a movable hammer which is arranged to prestress a spring by means of a hydraulic piston (16) provided with a through channel (20), and in which a movable sealing body (22, 4... | 12/26/2000 |
| 6019180 | Method for evaluating the power output of a drilling motor under downhole conditions A procedure is described for determining the power output of a downhole drilling motor, when the motor is inside the wellbore. The technique uses stand-pipe pressure and fluid flow rate as the main inputs. The power output of the motor is calculated by ca... | 02/01/2000 |
| 5934385 | Tapping tool and method for driving or controlling a tapping tool with pressurized fluid A threading attachment for internal or external threading includes a spindle head (1) which is intended to be attached to a spindle on a machine tool and also a tap holder (5) with a holder body (6) in which a tap (13) is arranged during the threading wor... | 08/10/1999 |
| 5913371 | Apparatus for controlling the feed drive of a boring mechanism for making earth bores In a preferably hydraulic control for a preferably hydraulically-driven earth boring mechanism, whereby a boring rod equipped with a boring tool is fed into and out of the earth with simultaneous rotation, the feed speed of the rod is regulated automatica... | 06/22/1999 |
| 5626198 | Pneumatic torque impulse tool A pneumatically powered torque impulse delivering tool for screw joint tightening comprises a housing (10) with a forward impulse chamber (11) enclosing a hydraulic impulse generator (15), a motor chamber (12) disposed rearwardly of the impulse chamber (1... | 05/06/1997 |
| 5492185 | Impulse wrench An impulse wrench comprises a pneumatic rotation motor (12), a hydraulic torque impulse generator (13) provided with an impulse magnitude responsive actuator (17), a linear movement responsive electric signal producing device (25) located at the rear end ... | 02/20/1996 |
| 5439063 | Compressed-air screw or bolt tightener, especially an impulse or a torque screw or bolt tightener A compressed-air screw or bolt tightener having a driving motor which drives a driving shaft for a screwing or tightening tool is disclosed. The motor is operated by compressed air and a control valve for switching the compressed-air supply to the screw o... | 08/08/1995 |
| 5421240 | Autoshut-off device for oil pressure type pulse wrench This invention is intended to effect torque control of high accuracy by detecting the oil pressure at the time of the generation of a pulse which forms the basis of the generated torque for a torque wrench and using the data thus obtained the effect torqu... | 06/06/1995 |
| 5346021 | Fastening tool having improved pressure regulator device An air tool for setting fasteners includes a pressure selecting valve member and internal passages for air balancing this valve member with a pressure relief pilot valve for bleeding a chamber of the valve member to atmosphere responsive to increased moto... | 09/13/1994 |
| 5217079 | Hydro-impulse screwing device A hydro-impulse screwing device comprises a rotary drive motor, a power source for the motor, a drive shaft, a pulsating hydraulic drive connecting the motor to the shaft and a power cut-off for the motor. The load at which the power cut-off functions is ... | 06/08/1993 |
| 5113949 | Tightening control apparatus for a torque wrench Disclosed is a tightening control apparatus for a torque wrench including a pressure detecting device for detecting an admission pressure supplied to a torque wrench. A pressure change detecting device determines a change in pressure detected by the press... | 05/19/1992 |
| 4991663 | Shut-off valve having variable input A shut-off valve 50 is disclosed including annular grooves 54 and a valve sleeve 26 including openings 36 which are configured and located relative to each other to define an orifice of variable flow area for supplying fluid from supply passage 16s to mot... | 02/12/1991 |
| 4903783 | Solenoid controlled air tool A positioning device having a chamber having a chamber exhaust valve in a first end and a chamber fluid inlet in a second end; a piston disposed in a chamber between the first end and the second end, the piston being slidable in the valve chamber between ... | 02/27/1990 |
| 4898248 | Hydraulic device Method and apparatus for tightening rotatable fastener elements including a source of pressurized fluid, a first rotatable actuator having a rotatable output shaft operable in response to fluid flow through the first actuator, first control to allow the f... | 02/06/1990 |
| 4887499 | Power screwdriver with torque limiter The instant invention relates to a power screwdriver with torque limiter, with a drive unit and a secondary transmission, with an output shaft for the attachment of a keyed bit. According to the invention the drive unit is a pneumatic motor (2) with a com... | 12/19/1989 |
| 4844176 | Air tool with torque shut-off valve The air tool of the present invention includes a torque shut-off valve totally enclosed within and substantially coaxial with the body housing of the tool. The torque shut-off valve includes a valve member reciprocally sliding in and guided by a bore and ... | 07/04/1989 |
| 4821815 | Technique for providing an underground tunnel utilizing a powered boring device A technique for providing a continuous underground tunnel between first and second spaced-apart points and for installing new cable, pipe or conduit is disclosed herein. This technique utilizes a boring device including means for boring through soil and a... | 04/18/1989 |
