Quotables
"What can be more palpably absurd than the prospect held out of locomotives traveling twice as fast as stagecoaches?"
The Quarterly Review ; March edition, 1825
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 |
| 8001884 | Swivel motor A swivel motor has a plurality of work chambers and a join system between the work chambers that joins the work chambers at least by pairs. The arrangement of the joined work chambers is carried out in such a way that the work chambers which are connected to the fir... | 08/23/2011 |
| 7387061 | Control apparatus for hydraulic cylinder Cushion chambers (8) disposed in the vicinity of both ends of a hydraulic cylinder (1) to throttle inflow or outflow of an operating oil caused by a piston (5) moving close to a piston stroke end, pressure sensors (16, 17) to detect press... | 06/17/2008 |
| 7322272 | Piston and a power cylinder fitted therewith A piston for a fluid operated power cylinder has two mutually coaxial sealing lips axially extending away from each other and being able to radially yield, for sealing engagement with the piston running face of the power cylinder and adjacent to at least one piston ... | 01/29/2008 |
| 7322501 | Fastener driving tool A cylinder is constituted such that the cylinder includes a large diameter portion constituted by forming a portion thereof brought into contact with an O ring by a diameter larger than a diameter of other portion when a piston is disposed at an upper dead center an... | 01/29/2008 |
| 7243766 | Rebound cushion for hydraulic shock absorber A cylindrical rebound cushion (8) is fitted to an outer circumference of a piston rod (5) inserted in a cylinder (3) of a hydraulic shock absorber (1). An upper end surface (8a) of the rebound cushion (8) comes Into c... | 07/17/2007 |
| 7194949 | Magnet type rodless cylinder A magnet type rodless cylinder comprised of cylinder tube of a double tube structure provided with an outside tube of an elliptical flattened outside circumferential shape and two inside tubes inserted into the outside tube. When pressurized air is supplied alternat... | 03/27/2007 |
| 7172218 | Pretensioner A pretensioner including a cylinder in which a piston slides. A side of the pipe attached to a bracket is curved at a predetermined angle. One linear portion of the pipe serves as the cylinder, and the other linear portion of the pipe serves as a gas-generator accom... | 02/06/2007 |
| 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 |
| 7131563 | Nail driver bumper A nail driver bumper comprises an inner pad and an outer pad which are made of heat-resisting elastomer material. A plurality of axial ribs is arranged between the inner pad and the outer pad. An axial slot is formed between two adjacent axial ribs. A top of each ax... | 11/07/2006 |
| 7121237 | Device and a method for the generation of pressure pulses A device for the generation of pressure pulses, includes a cylinder (3), a piston that is displaceably arranged in the cylinder (3), a pressure fluid circuit with an inlet (6) into and an outlet (7) out of the cylinder (3) on one s... | 10/17/2006 |
| 7090107 | Hand-held setting tool A hand-held setting tool for driving in fastening elements includes a pressure probe (20) displaceable between an extended position (22) in which the setting tool (10) cannot be actuated, and an operational position (23) in which the sett... | 08/15/2006 |
| 7066074 | Fluid motor The piston of a fluid motor divides the cylinder into two variable volumes into which and from which fluid may be selectively introduced and exhausted via ports through the cylinder to relatively move the piston and the cylinder. The piston is modified to define two... | 06/27/2006 |
| 7021192 | Cylinder apparatus A pair of throttle valves are installed to first and second installation holes of a cylinder tube, respectively. The throttle valve comprises a rotatable member, a needle which is engaged with the rotatable member and which controls the flow rate of a pressure fluid... | 04/04/2006 |
| 6997100 | Impact plate for component assembly An impact plate for use in a component having parts that move at high velocity, such as a piston or valve, controls energy transfer during impact of the moving part. The impact plate has a recessed inner portion that acts as an impact surface and an outer support su... | 02/14/2006 |
| 6997102 | Pneumatic cylinder with safety device A pneumatic force-generating device, for example, a pneumatic cylinder for balancing the ram weight on a press, is provided with an impact or catching device having an impact plate (24) for catching the piston (18) upon discharge of the weight. The def... | 02/14/2006 |
| 6971570 | Striker assembly for a nailer A striker assembly for a nailer comprises: a striker formed with an inserting hole; a piston formed at its clamping portion with a receiving groove for insertion of the connecting end of the striker, on the clamping portion is an inserting hole; a pin inserted in th... | 12/06/2005 |
| 6955531 | Pump for inflating and deflating an inflatable object with a rotatable nozzle assembly A pump is capable of inflating and deflating an inflatable object. The pump includes a cylinder, a piston and a nozzle. The cylinder defines an outlet through which air can only flow into the cylinder and an inlet through which air can only flow from the cylinder. T... | 10/18/2005 |
| 6953137 | Fastener driving tool having contact arm in contact with workpiece A nail gun having a contact arm normally biased in a direction away from a workpiece by compression springs. A free end of the contact arm is brought into abutment with a workpiece and a trigger is pulled for driving a nail thereinto. In the trigger pulling operatio... | 10/11/2005 |
| 6883480 | Camshaft adjuster for internal combustion engines of motor vehicles A camshaft adjuster for internal combustion engines of motor vehicles has a stator having a casing and stays connected to the casing and projecting radially inwardly. A rotor rotatable relative to the stator is fastened on the camshaft. The rotor has a rotor base me... | 04/26/2005 |
| 6837143 | Cylinder device A cylinder device such as a power cylinder of a power steering system includes a slidable shaft slidably disposed inside a housing. A joint member is connected to the end section of the slidable shaft. A stopper member is disposed between the slidable shaft and the ... | 01/04/2005 |
| 6640541 | Master cylinder for use in power trains of motor vehicles A master cylinder for use in the power train of a motor vehicle to actuate the brakes or the friction clutch is designed to avoid the generation of screeching noise and/or the transmission of stray movements to the piston rod in response to shifting of th... | 11/04/2003 |
| 6626081 | Air-seal structure for pneumatic nailers An air-seal structure for pneumatic nailers includes a valve member movably engaged with the end cap of the nailer and a plurality of paths defined radially through a skirt portion of the valve member. The paths are in communication with air release passa... | 09/30/2003 |
| 6581508 | Linear actuator with shock-absorbing mechanism A plurality of shock absorbers 14 are disposed in parallel to each other in different positions on the left and right in a slide table 13 with push rods 14a for expanding and contracting projecting outside from opposite end faces of the slide table 13 in ... | 06/24/2003 |
| 6539834 | Slide table unit Two rods 2 and 3 disposed in parallel to each other are supported through hydrostatic bearings 8 and 9 on a main body block 1, one end portions of the rods project from opposite faces facing each other of the main body block, and the projecting ends of th... | 04/01/2003 |
| 6523452 | Hydraulic cylinder cushion device A cushion ring 26 enters the inner circumference of a cushion seal 34 near the end of a piston stroke, the cushion seal 34 being free to displace by a certain amount in the axial direction of a piston rod 23 in a cylinder head 28, and exerts a cushion eff... | 02/25/2003 |
| 6481334 | Rodless cylinder A cylinder tube which is a main part of a rodless cylinder is mounted with stopper members through end plates. The stopper members are provided with adjuster bolts to restrict the moving range of a slide table and shock absorbers to buffer impact given wh... | 11/19/2002 |
| 6470787 | Stroke adjustable fluid pressure cylinder A fluid pressure cylinder includes a piston, which is slidably accommodated within a cylinder tube, a hollow piston rod, which is coupled to the above piston, a stopper rod, of which base end is attached to the above head cover so that the location thereo... | 10/29/2002 |
| 6318239 | Nailer and bumper provided therein for braking impact piston A bumper for braking an impact piston is disposed at a lower part of an impact clinder for sidably housing the impact piston. The impact piston has a driver for driving a fastener and having a cylindrical shape at its upper portion. The bumper includes an... | 11/20/2001 |
| 6237333 | Microgel disersion for hydraulic apparatus and processes A novel energy hydraulic media is disclosed comprising a microgel dispersion. The microgel dispersion is a Non-Newtonian fluid. This microgel dispersion is useful in devices that utilize a hydraulic fluid, such as hydraulic energy transmission systems and... | 05/29/2001 |
| 6186484 | Elastomer damper for an actuator cylinder The elastomer dampers are disposed at both ends of the actuator cylinder in order to stop the piston moving in the cylinder at its stroke ends. The elastomer damper includes a pair of the protruding portions which abut the piston at its stroke end. The pr... | 02/13/2001 |
| 6092456 | Rodless power cylinder A rodless power cylinder includes a tube having an oblong circular cross section bore and a slit extending along the longitudinal axis of the bore and penetrating the wall of the tube. The bore includes a slit-side inner surface on which the slit opens an... | 07/25/2000 |
| 6014924 | Slide drive arrangement A slide drive device has a principal housing, in which at least one actuating element able to be driven linearly is arranged. Externally on the principal housing there is a slide kinetically coupled with the actuating element. Two stroke limiting means re... | 01/18/2000 |
| 5890414 | Stop cylinder and piston assembly A stop cylinder and piston assembly has both a firing piston and a piston ed for both firing and return located on the same piston rod. The stop cylinder and piston assembly is designed with gas passages so that gas injected for firing purposes through a ... | 04/06/1999 |
| 5850776 | Fluid pressure cylinders provided with impact absorbing mechanisms A fluid pressure cylinder includes a cylinder body, a piston accommodated in the cylinder body to define first and second pressure chambers therein, means for supplying fluid to each chamber to reciprocate the piston between a first stroke end and a secon... | 12/22/1998 |
| 5839348 | Moving cylinder apparatus A cylinder apparatus includes a base plate, a piston fixed to the base plate and having a piston head and a piston rod connected thereto, a cylinder body having a cylinder chamber defined on one side of the piston head and a cylinder chamber defined on an... | 11/24/1998 |
| 5802953 | Power tilt cylinder device In a power tilt cylinder device 100, a hydraulic fluid is supplied to the opposite piston side space 22B of a free piston 25, in the upper limit position of upward tilting, which is performed for discharging the hydraulic fluid from the first chamber 21, ... | 09/08/1998 |
| 5775201 | Piston arrangement for a percussion tool A percussion tool comprises a cylinder 3 communicated to a pressure accumulating chamber 16 storing pressurized air therein, and a piston 4 slidable in the cylinder 3 when pressurized air is introduced into the cylinder 3 from the pressure accumulating ch... | 07/07/1998 |
| 5737998 | Heavy-load hydraulic or air cylinder A heavy-load hydraulic or air cylinder comprises a main body provided therein with an action rod having an driven end. The driven end is exerted on by the liquid or air pressure to actuate the action rod. The driven end is provided respectively on both si... | 04/14/1998 |
| 5669283 | Cylinder apparatus A cylinder apparatus includes a base plate, a piston fixed to the base plate and having a piston head and a piston rod connected thereto, a cylinder body having a cylinder chamber defined on one side of the piston head and a cylinder chamber defined on an... | 09/23/1997 |
| 5568982 | Linear drive A linear drive, on which housing a longitudinally moving output drive part is provided. In the possible path of motion thereof a limiting device is arranged, with which the end or terminal position of the output drive part may be preset. The limiting devi... | 10/29/1996 |
