Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8091650 | Power tool guard A power tool including a power tool body, a rotatable driven member being operable for releasably gripping a working element and having a front end and a rear end, the driven member extending from the rear end, located proximally and connected to the power tool body... | 01/10/2012 |
| 7594548 | Power tool having a joystick control A power tool having a power tool body and a tool that is movably coupled to the power tool body. The power tool also includes a joystick control coupled to the power tool body, wherein the joystick control is operable as a user interface for affecting the operation ... | 09/29/2009 |
| 7401663 | Electric motor driven hand-held tool An electric motor driven hand-held tool, such as a drilling, hammering or screw driving tool having a tool housing within which is located an integrated switch unit (6). The switch unit (6) includes an electronic motor control unit (8), a first ... | 07/22/2008 |
| 7328752 | Power tools An electrically powered hand tool is disclosed. The tool includes a motor, a power source, a work element and a controller. Various alternative features, embodiments and operative configurations are disclosed. The electrically powered hand tool may be a drill/driver... | 02/12/2008 |
| 7325627 | Air tool A center portion of a handle housing portion 3 is arranged with a pressure reducing valve mechanism portion 50 for reducing a pressure of high pressure compressed air to be surrounded by an exhaust chamber 40, in a state of making a trigger 3... | 02/05/2008 |
| 7320374 | Wellbore top drive systems A system for wellbore operations, the system, in at least certain aspects, including a derrick, a guide beam connected to the derrick, a top drive movable on the guide beam, torque reaction structure connected to the guide beam and to the derrick, skid apparatus hel... | 01/22/2008 |
| 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 |
| 7311155 | Pneumatic tool with direction switch operable with single hand A pneumatic tool is operable with a single hand. The pneumatic tool includes a shell defining a first chamber and a second chamber. The second chamber includes intake and outlet apertures in communication with the first chamber. A cylinder is in the first chamber. A... | 12/25/2007 |
| 7296475 | Displacement instrument for determining the modulus of a material A novel displacement instrument that can be used to measure the density or modulus of an aggregate pier upon which a multistory building or parking garage can be built. The aggregate piers are often 35 feet or deeper. These aggravate piers are constructed by adding ... | 11/20/2007 |
| 7278341 | Structural bolt security apparatus A structural bolt security apparatus includes a security nut forming a threaded central hole for a bolt; the security nut has a groove in an upper surface and/or a side surface. At least one groove is at least partially separated from the threaded central hole by th... | 10/09/2007 |
| 7267512 | Power assisted drill press A power assisted drill press having a feed cylinder fed by a variable pressure regulator which allows a user to controllably feed a bit and work material together while activating a drill motor to rotate the bit. An embodiment of the power assisted drill press utili... | 09/11/2007 |
| 7261586 | Cord sleeve, and device provided therewith An electric hand power tool has a housing, a drive motor, a power cord extending to an outside from the housing and supplying energy to the drive motor, wherein the power cord has an exit region with a cord sleeve that tubularly clasps the power cord and is provided... | 08/28/2007 |
| 7261166 | Switch for power tool A power tool includes a housing having a motor provided therein and a switch provided within the housing for activating the motor. The power tool also includes a member configured for movement between a first position in which the motor is operating and a second pos... | 08/28/2007 |
| 7258048 | Manually operated impact wrench A manually operated impact tool is provided and includes: an impact mass; an anvil rotatably disposed relative to the impact mass; an input member operatively connected to one of the impact mass and anvil mass for imparting a relative rotation between the impact mas... | 08/21/2007 |
| 7237461 | Reverse ratchet wrench with light to indicate the driving orientation A ratchet wrench includes a handle with a head portion at an end thereof, a ratchet wheel mounted in the head portion for rotation, and an operating device to be moved between a first position and a second position for change of a driving orientation of the ratchet ... | 07/03/2007 |
| 7234536 | Power screwdriver A power screwdriver is disclosed having a drive which is coupled via a clutch, disengaging as a function of torque, to a tool drive shaft for driving a tool. The screwdriver comprises an electronic control unit for controlling the drive, and a sensor which is couple... | 06/26/2007 |
| 7231969 | Wellbore top drive power systems and methods of use A top drive system having a drive motor, a gear system coupled to the drive motor, a drive quill coupled to the gear system, a top drive support system for supporting the drive motor, the gear system, and the drive quill, a lower support apparatus connected to the t... | 06/19/2007 |
| 7228913 | Tubular clamp apparatus for top drives and methods of use An apparatus for releasably clamping and holding a member for wellbore operations, the apparatus having a main body, two opposed clamping apparatuses in the main body, the two opposed clamping apparatuses spaced-apart for selective receipt therebetween of a member t... | 06/12/2007 |
| 7222683 | Wellbore top drive systems An containerized top drive system including a container, top drive apparatus removably disposed within the container, an extension system for moving the top drive apparatus generally horizontally within a derrick, the top drive apparatus secured to the extension sys... | 05/29/2007 |
| 7188686 | Top drive systems A top drive system for wellbore operations including a hollow bore alternating current permanent magnet motor with a motor bore therethrough, a planetary gear system coupled to the motor, the gear system having a gear system bore therethrough, a quill drivingly conn... | 03/13/2007 |
| 7182148 | Tool with motion and orientation indicators A tool has a housing; a display unit attached to the housing; and a motion detection unit operably coupled to the housing and to the display unit, wherein the motion detection unit is configured to detect linear and rotational motion of the housing, to generate a fi... | 02/27/2007 |
| 7121358 | Power tools An electrically powered hand tool is disclosed. The tool includes a motor, a power source, a work element and a controller. Various alternative features, embodiments and operative configurations are disclosed. ... | 10/17/2006 |
| 7108459 | Power assisted drill press A power assisted drill press having a feed cylinder fed by a variable pressure regulator which allows a user to controllably feed a bit and work material together while activating a drill motor to rotate the bit. An embodiment of the power assisted drill press utili... | 09/19/2006 |
| 7093668 | Power tools An electrically powered hand tool is disclosed. The tool includes a motor, a power source, a work element and a controller. Various alternative features, embodiments and operative configurations are disclosed. ... | 08/22/2006 |
| 7066278 | Power tool and beam location device A power tool having a location sensor for identifying beams or studs behind a wall. Wherein the location sensor is moveably attached to the power tool between advanced and retracted position such that when the center portion of the stud is located, the power tool wo... | 06/27/2006 |
| 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 |
| 7036605 | Power tools A detector is disclosed that detects impact sounds, e.g., a hammer striking an anvil or oil pulses from an oil unit. The detector may comprise a receiver that selectively converts sound within a narrow frequency range into electric signals. Preferably, the impact so... | 05/02/2006 |
| 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 |
| 7028784 | Motor-driven hand-held tool with functional step display A motor-driven hand-held tool includes a housing (4) having a switching recess (6) formed therein, an actuation member (8) displaceably arranged in the switching recess for shifting a functional unit between different functional steps, and and a... | 04/18/2006 |
| 7021374 | Method and apparatus for connecting tubulars using a top drive An apparatus for facilitating the connection of tubulars, said apparatus comprising a winch (15), at least one wire line (4, 5), and a device (2) for gripping the tubular (3), the arrangement being such that, in use, the winch (15)... | 04/04/2006 |
| 6976298 | Methods and apparatus for connecting tubulars using a top drive An apparatus for facilitating the connection of tubulars using a top drive, the apparatus comprising a stator attachable to said top drive, and a supporting member for supporting a tool, wherein means are provided to allow substantially horizontal movement of said s... | 12/20/2005 |
| 6938706 | Power tool provided with a locking mechanism A power tool (2) has a first body (6), a second body (4) connected to the first body (6), and a locking mechanism. One of the bodies (4;6) is moveable with respect to the other body (4;6). The locking mechanism is capable of... | 09/06/2005 |
| 6935437 | Air drill An air drill includes a body having a grip portion having an air supply passage and an air exhaust passage formed therein, a trigger portion formed above the grip portion and supporting a trigger, and a cylinder portion formed above the trigger portion and accommoda... | 08/30/2005 |
| 6918522 | Nailing machine Disclosed is a nailing machine capable of indicating an existence or non-existence and the residual quantity of a nail in a cartridge. The nailing machine includes a main body, a nose portion and a cartridge. The main body includes a trigger lever mounted to a lower... | 07/19/2005 |
| 6851487 | Power tool and beam location device A power tool having a location sensor for identifying beams or studs behind a wall. Wherein the location sensor is moveably attached to the power tool between advanced and retracted position such that when the center portion of the stud is located, the power tool wo... | 02/08/2005 |
| 6834730 | Power tools An electrically powered hand tool is disclosed. The tool includes a motor, a power source, a work element and a controller. Various alternative features, embodiments and operative configurations are disclosed. ... | 12/28/2004 |
| 6821157 | Portable tool connected to an operation controlling and /or monitoring unit via a cable A portable tool is connected to a remotely located operation controlling and/or monitoring control it via a multi-core cable. The multi-core cable is connected to the tool by a standard type multi-connector plug and jack connection to supply electric power and/or el... | 11/23/2004 |
| 6814152 | Target torque detection at power wrenches having mechanical release clutch A power wrench for detecting the attainment of a target torque level in a screw joint tightening process is provided, wherein an override type torque responsive release clutch is used in the power wrench for defining the target torque level. A microphone is mounted ... | 11/09/2004 |
| 6799644 | Pneumatic percussive mechanism A pneumatic percussive mechanism having an axially reciprocating percussive loaded percussion piston (2), wherein a non-contacting magnetic field sensitive sensor (3) is arranged radial thereto. The percussion piston (2) features at least extern... | 10/05/2004 |
| 6722550 | Fuel level indicator for combustion tools A combustion tool employing a replaceable pressurized fuel cell includes a fuel condition monitor system for monitoring and indicating fuel cell fuel condition. The fuel condition monitor system includes a fuel condition monitor for monitoring at least one of fuel c... | 04/20/2004 |
