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The Quarterly Review ; March edition, 1825
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| Number | Title | Issue Date |
| 7644646 | Three position servo system to control the displacement of a hydraulic motor A three position servo system. The servo system has a servo housing that has first and second control ports disposed therein in a cavity in fluid communication with the first and second control ports. A servo piston having at least one pressure chamber disposed ther... | 01/12/2010 |
| 7487708 | Fluid pressure cylinder The female screw (8a) is formed on the inner circumference of the forward side of the piston receiving hole (8) in the cylinder body (2) and the movable stopper (9) is screwed into the female screw (8a). The piston ( | 02/10/2009 |
| 7337805 | Valve with adjustable stop An adjustable mechanism for a valve or actuator is provided. The adjustable mechanism cooperates with one or more pistons, which in turn cooperates with a valve element to limit the axial displacement of the valve element relative to the valve seat. The adjustable m... | 03/04/2008 |
| 7290431 | Rivet squeezer A pneumatically operated rivet squeezer is described, having features that allow for the miniaturization of a squeezer to a size smaller than portable rivet squeezers presently available. A first feature of the invention is that a return spring is accommodated withi... | 11/06/2007 |
| 7156385 | Linearly adjustable apparatus for locating a workpiece A linearly adjustable apparatus having a stroke adjustment for locating geometric references on a workpiece. The present invention provides a housing having a linear actuator for actuating a locating member between an extended position, wherein the locating member e... | 01/02/2007 |
| 7111834 | Swing-arm clamp A swing-arm clamp is provided. The swing-arm clamp has a piston rod which is disposed therein. The piston rod is movable through the swing-arm clamp in response to movement by the piston along a longitudinal axis between first and second positions. The clamp also ha... | 09/26/2006 |
| 6997148 | Engine valve actuator An engine valve actuator for an internal combustion engine is provided. The actuator includes a housing having an opening. An adjustment member is disposed in the housing and defines a fluid chamber having a chamber wall. A piston is also disposed in the opening. Th... | 02/14/2006 |
| 6807895 | 3-position stopping cylinder A pusher which has a stroke shorter than that of a piston at either position on a head side or a rod side in a cylinder main body and which serves as both means for pushing the piston from a stroke end back to an intermediate stopping position and means for stopping... | 10/26/2004 |
| 6708656 | Engine valve actuator An engine valve actuator for an internal combustion engine is provided. The engine valve actuator includes a housing having an opening. An adjustment member is disposed in the housing and defines a chamber. A piston is disposed in the opening of the housing and has ... | 03/23/2004 |
| 6666129 | Operating device for a rotatable closing element of a valve The invention relates to an operating device for a rotatable closing element of a valve such that, a desired angle of rotation can easily be set and maintained. This is achieved in that two guide grooves (2f), which are incorporated diametrically opposite... | 12/23/2003 |
| 6487960 | Hydraulic failsafe valve actuator A hydraulic actuator for operating a gate valve. The actuator includes a stationary piston coupled to an actuator housing and a moveable cylinder disposed proximate the piston exterior surface. The piston includes a hollow interior portion adapted to hous... | 12/03/2002 |
| 6481333 | Positioning device, capacity controller using positioning device, and speed changing device First and second pistons are provided in a body, the first piston is restricted by the body and the second piston, and the second piston is restricted by the body and a second piston restricting part. Thus, the first piston can be stopped at three positio... | 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 |
| 6408740 | Three position cylinder A three position cylinder assembly having an outer cylinder connected between two bases defining a cap end and a head end. A stationary tubular member is secured to the cap end of the outer cylinder at a port to provide fluid access into the outer cylinde... | 06/25/2002 |
| 6367367 | Brake cylinder device A brake cylinder device with a built-in automatic shoe clearance adjustment device which prevents a chance of misassembly, loosing, or omitting the spacer. The brake cylinder device includes an adjustment bolt screwed into a pair of pistons symmetrically ... | 04/09/2002 |
| 6343537 | Dual stroke cylinder A piston 14 for sliding in a cylinder 12, a rod 16 of the piston 14, and a sleeve 15 fitted over the rod 16 and passing through a rod hole 13 of the cylinder are provided. A lock portion 18 is provided to an outer periphery of a tip end portion of the rod... | 02/05/2002 |
| 6041804 | Subsea valve actuator and method A subsea actuator and method is disclosed that includes a removable monolithic cap/hydraulic chamber that seals the actuator housing top with seals placed around the monolithic cap, defines a straight hydraulic line and port for control line hydraulic flu... | 03/28/2000 |
| 6019026 | Self-centering motor A self-centering motor (16) includes a piston (130) which is disposed in a housing (112) and is movable in opposite directions from a centered condition. A pair of centering members (160 and 162) are disposed in the housing (112) to effect movement betwee... | 02/01/2000 |
| 5876189 | Pumped fluid metering device for the precise feeding of a fluid A metering device for the precision feeding of a liquid, such as, for example, an oil lubricant. The device has a fluid supply chamber with a working medium such as oil and which in turn is in open communication with a metering chamber also containing the... | 03/02/1999 |
| 5842404 | Mechanism for setting the two end positions of a piston for a turning shaft of the rack and pinion type A mechanism for setting the two end positions of a piston for a turning shaft of the rack and pinion type, being equally applicable to driving gears which use slotted or other guides as a system of conversion of lineal into turning movement, the mechanism... | 12/01/1998 |
| 5816131 | Fluid-controlled actuator assembly A fluid-controlled actuator assembly for a gearbox of a vehicle. The actuator is provided with a four-position mobile element, with a first and a second chamber separated in a sealed manner from the mobile element, and with auxiliary positioning elements ... | 10/06/1998 |
| 5746110 | Drive cylinder A compact drive cylinder with a cylinder barrel, an end cap and a guide cap is provided. In the cylinder barrel an axially sliding piston is arranged, on which a piston rod is mounted which extends through the guide cap. The piston divides a thrust chambe... | 05/05/1998 |
| 5653418 | Ram-type blowout preventer An actuator for a ram-type blowout preventer used either with a shear ram blowout preventer or a pipe ram blowout preventer. The actuator includes a pressure-responsive cylinder having an operating piston disposed therewithin. The piston includes a shaft ... | 08/05/1997 |
| 5609090 | Actuator with protective end cap A fluid-powered rotary actuator for providing rotary movement between first and second external members. The actuator includes a cylindrical body with first and second ends. The body is adapted for coupling to the first external member, and a shaft extend... | 03/11/1997 |
| 5564906 | Means for moving a valve within a gas compressor having a straight cylinder An elongated sleeve, externally threaded, is threadedly engaged with threaded bores in transverse walls formed in a straight cylinder of a gas compressor. A nut is secured to an intermediate portion of the sleeve, by means of a setscrew, and an end of the... | 10/15/1996 |
| 5495791 | Actuator for transfer of forward and backward rotational movement A fluid-operated actuator comprising a chamber part (1) with at least one chamber (12, 13), a carrier (3) which is rotatably mounted in the chamber part (1), and a plunger piston (2) in the form of a circular arc. The plunger piston can be moved along the... | 03/05/1996 |
| 5494078 | Pneumatic lift device for dual flow valve Positive adjustable flow is provided for a dual flow valve for paint dispensing or the like utilizing a sliding piston and a lost motion device in combination with an adjustable stop and wherein operating lift is provided by a single pressure source alter... | 02/27/1996 |
| 5489006 | System and apparatus for limiting vehicle turning radius A vehicle steering control system and apparatus for controlling steering radius to prevent vehicle and surface damage and to provide improved low speed vehicle maneuverability. The steering control system and apparatus provides a first controllably limite... | 02/06/1996 |
| 5477772 | Actuator with protective end cap A fluid-powered rotary actuator for providing rotary movement between first and second external members. The actuator includes a cylindrical body with first and second ends. The body is adapted for coupling to the first external member, and a shaft extend... | 12/26/1995 |
| 5454290 | Hydraulic control device with movable valve A hydraulic control device comprises a valve (4) which can be moved inside a casing (1) and a stop for opening the valve at one point, the position of which may be set. The stop (6) slides in an axial housing (7) under the effect of a spring (8) and a sto... | 10/03/1995 |
| 5303637 | Piston assembly structure for an hydraulic cylinder Portable lift structure for moving a support platform between a comparatively dry position above the surrounding deck of a liquid spa tank to a wetting position in the spa tank including two longitudinally extending structural members pivotally connected ... | 04/19/1994 |
| 5228380 | Linear drive A linear drive comprising a drive member adapted to be reciprocated axially in a housing between two end positions. Opposite to the former there is a wall on at least one axial side. There are means to reduce the impact in the end position, such means hav... | 07/20/1993 |
| 5189942 | 3-position actuator A 3-position actuator having a moving body comprising a piston and piston rod slidingly reciprocating in an axial direction within a casing, a part of the rod protruding from said casing, said moving body being moved to one end side when fluid flows into ... | 03/02/1993 |
| 5181468 | Pretensioned jack for controlling the operating pressure between two rotary cylinders A device for controlling the operating pressure between the two rotary cylinders in a machine used for processing layers such as webs, ink films, or the like for instance on an offset printing machine. The device includes a pneumatic jack having an outlet... | 01/26/1993 |
| 5154107 | Method for adjusting the lost motion in a tandem master cylinder and tandem master cylinder for carrying out this method The tandem master cylinder comprises, in a bore, a primary piston defining with a secondary piston a primary chamber, the secondary piston defining with the bottom of the bore a secondary chamber, the primary and secondary chambers having respectively pri... | 10/13/1992 |
| 5098260 | Position-servo device for positioning a stop in a positive displacement fuel injection system An electro-hydraulic position-servo device to quickly and accurately position a stop element is provided for use with a positive displacement fuel injection system, wherein a shuttle is used to positively displace pre-metered slugs of fuel to unit injecto... | 03/24/1992 |
| 5086863 | All-wheel steering system for motor vehicles An all-wheel steering system for motor vehicles includes an adjusting motor (10) for the rear wheels. The motor has a piston rod on which two fixed working pistons (25 and 25A) and, in a housing segment located between the working pistons, two movable ste... | 02/11/1992 |
| 5067323 | Three position actuator arrangement Actuator (14) drives inlet vanes (22) selectively to three positions, using high (58) and low (56) pressure fuel as the driving medium. Each of the three position is externally adjustable (94, 92, 68). An overboard leak path (86) is provided at the most o... | 11/26/1991 |
| 5054372 | Adjustable shaft actuator A fluid-powered rotary actuator having a body with first and second ends, and a shaft extending generally coaxially within the body. The shaft is supported for rotational movement relative to the body by bearing races formed on the shaft first and second ... | 10/08/1991 |
| 5052277 | Hydraulic cylinder for braking elements of vehicles In an hydraulic cylinder for vehicle braking elements, a clamping piston (1) moved in a housing (3) by hydraulic pressure acts relative to a brake lining carrier bearing a brake lining, e.g., in the form of a brake shoe which, during braking, is forced ag... | 10/01/1991 |
