Quotables
"During my service in the United States Congress, I took the initiative in creating the Internet."
Al Gore ; The basis for the later misquote by US Republicans that Gore had "invented" the Internet. Gore was the leading political champion of the modern-day Internet.
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 |
| 8181716 | Breaking machine shock absorbing system A breaking apparatus (1) which includes; a housing (3); a striker pin (4) having a driven end and an impact end, locatable in said housing (3) in at least one retaining location to protrude said impact end through the housing (3); ... | 05/22/2012 |
| 8104547 | Resilient stop assembly for impact tool A resilient stop assembly for an impact tool includes first and second resiliently deformable parts, and a substantially rigid part situated between the deformable parts. Each of the first and second resiliently deformable parts and the substantially rigid part comp... | 01/31/2012 |
| 8074734 | Powered hammer with a vibration dampening mechanism A powered hammer is described comprising a housing, a tool holder mounted on the housing, a percussion mechanism arranged within the housing which mechanism includes a ram reciprocating in a longitudinal direction and being adapted to apply impacts on a tool bit sup... | 12/13/2011 |
| 8061439 | Isolator plate assembly for rock breaking device A rock breaking device employs a falling weight and a striker pin or other tool held within a tool holding structure supported by a recoil assembly includes a number of isolator structures that protect the rock breaking device by absorbing excess forces that may be ... | 11/22/2011 |
| 8037947 | Impact tool with shock absorbing element A shock-absorbing element is disposed frontward of an interjacent element within a housing of an impact tool, and a washer is disposed rearward of and adjacent to the shock-absorbing element. The interjacent element is configured to come in contact with the washer w... | 10/18/2011 |
| 8028762 | Shock absorber for a reciprocating tool assembly A tool assembly (10), for example a hydraulic or pneumatic hammer assembly, comprises a housing (11) defining a chamber (16), a reciprocating work tool (20) arranged in the chamber for cyclical movement in a work stroke and a return strok... | 10/04/2011 |
| 7975777 | Cellular foam bumper for nailer A device for impacting a fastener in one embodiment includes a drive channel, a cylinder opening at an end portion to the drive channel, a microcellular polyurethane elastomer (MPE) bumper fixedly positioned at the end portion of the cylinder, the MPE bumper includi... | 07/12/2011 |
| 7958947 | Damping and drilling machine including such a damping device A damping device for inserting into a housing of an impulse producing drill machine, for damping Shockwave reflexes from a drill string connected to the drilling machine, is distinguished in that a first damping piston (7) for direct or indirect action agains... | 06/14/2011 |
| 7950471 | Hand-held power tool with pneumatic percussion mechanism A hand-held power tool includes a percussion power tool includes a percussion piston (5) for applying blows to an anvil (8) axially displaceable in a guide tube (6) within limits defined by two, spaced from each other, stops (9a, | 05/31/2011 |
| 7878265 | Impact power tool It is an object of the invention to provide a technique for a reduction of an impact force cased by rebound of a tool bit after its striking movement in an impact power tool. The representative impact power tool includes a tool body, a hammer actuating member, a str... | 02/01/2011 |
| 7819203 | Striking tool An impact force is transmitted to a tip end tool due to the changes of the air pressure within an air chamber generated by the reciprocal operation of the piston within a striker. The attachment portion of a tip end tool holding member for holding the tip end tool t... | 10/26/2010 |
| 7806201 | Power tool with dynamic vibration damping It is an object of the invention to provide a technique that contributes to improvement of the vibration reducing performance of a dynamic vibration reducer in a power tool while realizing reduction in size of the dynamic vibration reducer. A representative power to... | 10/05/2010 |
| 7775296 | Ground stabilized transportable drop hammer An improved portable, ground stabilized, drop hammer assembly for impacting a ground surface and adapted to be removably coupled to a driven host transport apparatus is composed of a drop weight, a frame including a sidewall, bottom plate and a host transport appara... | 08/17/2010 |
| 7740087 | Hand power tool with at least one handle A hand power tool has a housing; at least one handle having at least one gripping part; at least one elastic, vibration-damping element; a mounting part mounted on the elastic element; the gripping part being mounted on the housing through the elastic element and th... | 06/22/2010 |
| 7523791 | Impact power tool An object of the invention is to provide an improved technique for lessening an impact force caused by rebound of a tool bit after its striking movement in an impact power tool. The representative impact power tool comprises a tool body, a hammer actuating member, a... | 04/28/2009 |
| 7438140 | Shock attenuating device for a rotary impact tool A shock attenuating coupling device is provided for a rotary impact tool for drivingly connecting a hammer mechanism to a drive anvil. The shock attenuating coupling device includes a first coupling member, a second coupling member, a drum, a shoe, and a body of res... | 10/21/2008 |
| 7401661 | Lubricant pump for powered hammer A vibration reduction and lubricating mechanism for a powered hammer includes a power driven piston in a cylinder that reciprocatingly drives a ram, which repetitively strikes a beat piece, which repetitively strikes a tool received in a tool holder. The vibration r... | 07/22/2008 |
| 7392855 | Vibratory pile driving systems and methods A drive system for driving and/or extracting an elongate member. The drive system comprises a piston drive assembly, a hydraulic system, and a vibration drive assembly. The piston drive assembly comprises a piston member, and the piston member engages the elongate m... | 07/01/2008 |
| 7383895 | Impact power tool It is an object of the invention to provide an improved technique for lessening an impact force caused by rebound of a tool bit after the striking movement of the tool bit. Representative impact power tool (101) includes a tool body (103), a hammer act... | 06/10/2008 |
| 7377331 | Damping driving axle A damping drive axle includes an output shaft divided into a first portion and a second portion, a mounting seat having a centrally defined hole, a first compartment to correspond to and receive therein the first portion of the output shaft and a second compartment ... | 05/27/2008 |
| 7357195 | Power tool and gear unit assembled therein A power tool including a gear unit provided with a load moderating mechanism capable of reducing noise and prolonging service life. A coupling is force fitted with a spindle at a predetermined pressure allowing the spindle and the coupling to rotate relative to each... | 04/15/2008 |
| 7357380 | Anti-vibration element In order to reduce the formation of inherent vibrations in the coil spring in an anti-vibration element, in particular for a manually operated tool such as a chainsaw, a parting-off grinder or similar device and having a coil spring, an additional mass is positioned... | 04/15/2008 |
| 7357194 | Percussion power tool A percussion power tool includes a motor (6) located in the tool-housing (4) for driving the output member (12) and the percussion mechanism (10), a chuck (20) for receiving a working tool (22), a locking mechanism (24 | 04/15/2008 |
| 7331407 | Vibration reduction apparatus for power tool and power tool incorporating such apparatus A vibration reduction apparatus for use with a hammer tool having a hammer piston is disclosed. The hammer piston is caused to reciprocate in the cylinder by rotation of a gear wheel and crank drive. A cam is mounted around the gear wheel, a counterweight surrounds ... | 02/19/2008 |
| 7331408 | Power tool housing A transmission housing for a hammer drill comprises two clamshell halves and that mate to define a first transmission housing chamber and a second transmission housing chamber disposed on either side of a ball bearing race. The first and second transmission housing ... | 02/19/2008 |
| 7322425 | Method of generating stress pulse in tool by means of pressure fluid operated impact device, and impact device A method of generating a stress pulse, and an impact device. In the method, pressure fluid is fed as pressure pulses to a working chamber residing between the frame of the impact device and a tool such that the resulting force presses the tool towards the material t... | 01/29/2008 |
| 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 |
| 7318544 | Setting tool A setting tool for driving fastening elements in a constructional component includes a piston guide (11) adjoining the tool combustion chamber (16), a setting piston (20) arranged in the hollow space (12) of the piston guide (12) f... | 01/15/2008 |
| 7316341 | Adjustable exhaust assembly for pneumatic fasteners An adjustable exhaust assembly for a pneumatic fastener includes a base, which includes a base plate and a protrusion protruding from the base plate. The protrusion is centrally hollow and includes an inner surface and an outer surface. The base plate includes an in... | 01/08/2008 |
| 7287679 | Powder activated setting tool piston retainer arrangement and method Disclosed herein is a powder actuated setting tool piston retainer arrangement which includes a housing and firing mechanism and a piston having a piston retaining ring in operable communication with the housing and firing mechanism. Further the arrangement includes... | 10/30/2007 |
| 7278561 | Oil free head valve for pneumatic nailers and staplers The present invention provides a head valve assembly for a pneumatic fastener including a piston assembly reciprocated within a cylinder assembly for driving a fastener and a housing having an end cap for at least partially enclosing the head valve assembly. The hea... | 10/09/2007 |
| 7258173 | Electric power tool An electric power tool includes a percussion mechanism (15) located in an external housing (12) of the power tool (11) and driven by a driving motor (13) connected with the percussion mechanism (15) by a gear unit (14). An a... | 08/21/2007 |
| 7252157 | Power tool It is an object of the present invention to provide a power tool having a further improved vibration reducing performance. The representative power tool may comprise a tool bit, an actuating mechanism, a dynamic vibration reducer. The actuating mechanism drives the ... | 08/07/2007 |
| 7204322 | Power tool having pneumatic vibration dampening It is an object of the present invention to provide a vibration reducing technique caused by air pressure fluctuations within a power tool. According to the present invention, a representative power tool may comprise a driving motor, a driver and a tool bit. The dri... | 04/17/2007 |
| 7204744 | Hand-operated machine-tool comprising a vibration-damping rotary handle A handheld power tool, in particular a handheld right-angle grinder (10), has an electric motor drive for a motor housing (11) that accommodates a tool and also has a handle (15), which is retained on the motor housing (11) by means of a ... | 04/17/2007 |
| 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 |
| 7156190 | Impact tool An impact tool has a slidable hammer that is driven by hydraulic oil under pressure inside a chamber. The hydraulic oil is pressurized by a piston driven by compressed gas on the opposite side of the piston from the hydraulic oil. The gas in the gas chamber is compr... | 01/02/2007 |
| 7152695 | Power tool with air seal and vibration dampener A power tool is provided including a resilient boot having a radial flange mounted in a seat formed by housing halves in order to provide a sealed barrier segregating air of an inlet vent of a motor from air of an exhaust vent and the boot also mounting the motor an... | 12/26/2006 |
| 7137540 | Dual mode pneumatic fastener actuation mechanism A contact safety and trigger mechanism for use with a pneumatic fastener in order to permit efficient pneumatic fastener actuation mode selection. A rotating rod is included in a contact safety assembly which is constructed to slide toward/away from a driver housing... | 11/21/2006 |
| 7134512 | Method of downhole drilling and apparatus therefor A downhole drilling apparatus suspended by tubing includes a drill bit driven by an electric motor powered by a cable means. The motor is mounted upon a hollow shaft which allows fluid to pass through, so that a fluid circuit along the tube and back along the annulu... | 11/14/2006 |
