Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
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| Number | Title | Issue Date |
| 8151688 | Hydraulic circuit of construction machine A throttle path for returning a part of pilot oil to a tank is formed by a tank path provided in a valve block of a control valve and a notch provided in a spool thereof. The above path is opened within a section from a vicinity of a stroke where a hydraulic actuato... | 04/10/2012 |
| 7987765 | Hydraulic control system for high flow applications in motor vehicles A hydraulic control system for high flow applications in motor vehicles, in particular for active wheel suspensions and active steering arrangements, includes at least one passive high flow valve which is controlled hydraulically by at least one low flow valve. ... | 08/02/2011 |
| 7634961 | Hydraulic circuit for construction machine A hydraulic circuit including a first throttle disposed upstream of pressure-reducing valves of a remote-control valve, which operates a control valve of hydraulic pilot type, so as to reduce primary pressures supplied from a pilot pump to the pressure-reducing valv... | 12/22/2009 |
| 7430954 | Work machine A work machine includes an attachment movable by an actuator, an operational member for operating the attachment through the actuator; and a controller operable to output an operation signal for operating the actuator in response to an operation of the operational m... | 10/07/2008 |
| 7398647 | Pneumatically operated fastener driving tool A fastener driving tool includes a frame defining therein an accumulator that accumulates compressed air, a cylinder, a piston movable between a top dead center and a bottom dead center, a main valve section having a main valve movable between a top dead center and ... | 07/15/2008 |
| 7350355 | Hydraulic system having at least one hydraulic valve for controlling a transmission A hydraulic system having at least one hydraulic valve for controlling a transmission, in particular a continuously variable transmission. The hydraulic valve is controlled by a pilot circuit including at least one control element having a variable flow resistance a... | 04/01/2008 |
| 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 |
| 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 |
| 7308848 | Pressure control valve having intrinsic feedback system A method and system for controlling the dynamics of an actuatable load operable within a servo or servo-type system, wherein the dynamics of the load are controlled by way of a unique pressure control valve configured to provide intrinsic pressure regulation, thus e... | 12/18/2007 |
| 7305914 | Hydraulic actuator control valve An actuator includes a piston within a cylinder, the cylinder having a first fluid port in communication with an open side of the piston, and a second fluid port in communication with a shaft side of the piston. The piston travels in a first direction, toward the sh... | 12/11/2007 |
| 7284471 | Pressure control valve having intrinsic mechanical feedback system A method and system for controlling the dynamics of an actuatable load functioning or operable within a servo or servo-type system, wherein the dynamics of the load are controlled by way of a unique pressure control valve configured to provide intrinsic pressure reg... | 10/23/2007 |
| 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 |
| 7278262 | Control system for suppression of boom or arm oscillation A control for a working apparatus having a boom arm. The apparatus includes a controller operable to receive signals from at least one pressure sensor. The at least one pressure sensor detects pressure of hydraulic fluid in at least one chamber of a control valve. T... | 10/09/2007 |
| 7273434 | Automatic transmission brake for racing vehicles An automatic transmission brake adapter for use in high performance vehicle drag racing. In electronic controlled automatic transmission, the transmission is held in both reverse and drive allowing the engine to accelerate without movement of a vehicle. Release of t... | 09/25/2007 |
| 7243591 | Hydraulic valve arrangement The invention concerns a hydraulic valve arrangement (1) with a working connection arrangement having a first working connection (A) and a second working connection (B), both working connections (A, B) being connectable with a hydraulic consumer (2), a... | 07/17/2007 |
| 7237473 | Actuator for pneumatic valve A pneumatic valve includes a housing having an inlet port and a delivery port and an exhaust port. A valve element is movable in the housing to control air flow between the inlet port and the delivery port and the exhaust port. The valve includes a rolling element a... | 07/03/2007 |
| 7228781 | Hydraulic control in a hydraulic system, especially for the operation of scrap cutters The invention relates to hydraulic control in a hydraulic system for the operation of a machine tool such as a press for processing material of a certain type, especially for the operation of the scrap cutters. Said control allows for impact attenuation and combined... | 06/12/2007 |
| 7228783 | Pressure control system for a torque-transmitting mechanism The present invention provides a pressure control system having a control solenoid with plurality of coils disposed therein, and operable to provide a plurality of pressure gain characteristics to a torque-transmitting mechanism. By selectively energizing the indivi... | 06/12/2007 |
| 7188474 | Reciprocating engine and inlet system therefor The invention relates to a reciprocating engine and a working fluid inlet system therefore. The engine includes at least one cylinder with a reciprocating piston therein and a variable volume expansion chamber capable of receiving a working fluid via an inlet valve.... | 03/13/2007 |
| 7174826 | Hydraulic crowd control mechanism for a mining shovel A crowd control mechanism for a power shovel includes an extendible dipper handle having an extended position and a retracted position. A double acting hydraulic cylinder having a an extendible ram has one of the cylinder and the ram fixed to the dipper handle and t... | 02/13/2007 |
| 7168192 | Driving device, particularly a lifting device for a working vehicle The invention concerns a driving device, particularly a lifting device for a working vehicle, with a hydraulic drive, in the form of a motor with a first connection and a second connection, a pump, a control valve arrangement between the pump and the drive, and an o... | 01/30/2007 |
| 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 |
| 7156012 | Pneumatically operated fastener driving tool A pneumatically operated fastener driving tool capable of reducing a time period from operation timing of a trigger to downward movement of a driver blade for fastener driving, and reducing a time period from the release timing of the trigger to a timing at which re... | 01/02/2007 |
| 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 |
| 7076896 | Control for an operating arm of an earthmoving vehicle An earthmoving vehicle has an operating arm that is raised and lowered by a hydraulic system. The hydraulic system includes a drain line and at least one actuator connected to the operating arm. The actuator defines a variable-volume chamber connectable to the drain... | 07/18/2006 |
| 7066075 | Pneumatic transbrake actuator or solenoid for drag racing vehicles The present invention is a transbrake system for a transmission of a drag race car, the transmission comprising: (a) a transmission housing having an exterior, typically of aluminum; (b) a transmission valve body contained in the transmission housing; the transmissi... | 06/27/2006 |
| 7059579 | Latching valve for a torque-transmitting mechanism in a transmission A torque-transmitting mechanism control valve disposed between a hydrostatic source of pressure and a torque-transmitting mechanism is effective to direct fluid pressure to engage the torque-transmitting mechanism when a control pressure is present, effective to ret... | 06/13/2006 |
| 7028599 | Control device for the continuous drive of a hydraulic control motor In series between pump and tank are two throttle devices, one of which includes a controllable throttle valve having a piston, of which one side supports a valve head, which forms the boundary of an annular gap between an inflow duct and an outflow duct. A hydraulic... | 04/18/2006 |
| 6973866 | Hydraulic circuit for option tool of heavy equipment In the present invention, it is possible to supply hydraulic fluid by the amount needed in an option tool even when a combined work is performed by engaging an option tool having a different operation pressure to a work apparatus. The hydraulic circuit for an option... | 12/13/2005 |
| 6971302 | Hydraulic circuit for heavy equipment option apparatus using boom confluence spool There is provided a hydraulic circuit for an option apparatus of heavy equipment using a boom confluence spool, comprising a poppet valve installed at a flow path of a supply side of a spool for the option apparatus, a boom confluence spool that controls the flow ra... | 12/06/2005 |
| 6926186 | Fastener insertion device A fastener insertion device includes an actuator that is either pneumatic or manually operated. The fastener insertion device is illustratively configured to receive either a staple magazine or a stake magazine. The stake magazine can house stakes of different dimen... | 08/09/2005 |
| 6848353 | Hydraulic device A hydraulic device includes a passage block with a first hole, an internal body received in the first hole connected to a hydraulic module and an actuator. The actuator has a cylindrical shell integrally connected at its one side to the passage block and projecting ... | 02/01/2005 |
| 6790010 | Switching system for a reciprocating piston pump A pumping system. The pumping system has a cylinder pump, a first group of switching devices, and a second group of switching devices. The first group of switching devices enable the cylinder pump to pump the liquid by feeding the gas provided by the gas source into... | 09/14/2004 |
| 6758128 | Hydraulic circuit for working machine An oil hydraulic circuit having a pilot operated control valve, for performing control of pressure oil supply to a hydraulic actuator and a pilot valve gear for outputting a pilot pressure to the control valve, that improves operationality when a fine operation is p... | 07/06/2004 |
| 6745992 | Pilot operated control valve having a poppet with integral pressure compensating mechanism A pilot operated valve has a main poppet that selectively controls bidirectional flow of fluid between two ports in response to pressure in a control chamber on one side of the main poppet. The main poppet has a pilot orifice that is opened and closed by a pilot pop... | 06/08/2004 |
| 6745564 | Hydraulic variable control apparatus for heavy construction equipment A seat valve body mounted in a hydraulic line between a pump line and feeder lines to control hydraulic fluid supplied to variable throttles and to auxiliarily control hydraulic fluid flowing in a load line comprises a first seat valve having a variable control thro... | 06/08/2004 |
| 6679162 | Working cylinder, switch valve and pressure-actuated working unit A working cylinder (A) having at least one working chamber (6, 7) defined by the cylinder barrel (1), at least one of the end sections (2, 3) and a piston (4), at least one supply port (9a, 9b) and a exhaust port (12a, 12b) for the working medium. The exh... | 01/20/2004 |
| 6659247 | Pneumatic volume booster for valve positioner The system controls the position of a pneumatically operated valve using an electrical control signal from a controller. A pilot circuit of the system has multiple piezo valves that are subject to electrical signals from the controller to provide pneumati... | 12/09/2003 |
| 6595104 | Pilot control for a hoist and balancing apparatus An actuator assembly has a first and second pilot valve. Each valve has inlets in communication with a fluid supply source and outlets in communication with the control valve. An in-line actuator housing disposed between the fluid powered device and a low... | 07/22/2003 |
| 6570267 | Antitheft device for construction machinery In the construction machinery equipped with an engine, a hydraulic control unit and a machine controller, there is provided an antitheft device for the construction machinery, which can prevent the engine from starting and the hydraulic control unit from ... | 05/27/2003 |
