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| Number | Title | Issue Date |
| 7399168 | Air driven diaphragm pump An air driven diaphragm pump includes two diaphragms affixed to a common shaft. The shaft extends through an air valve providing reciprocating pressurized air to the diaphragms through associated air chambers. A pump chamber with intake and exhaust valves is associa... | 07/15/2008 |
| 7320599 | Blood pressure simulation apparatus with tactile interface The blood pressure level in humans is a vital health parameter, yet the vast majority of people do not have a physical feeling for what normal and abnormal blood pressure levels mean in relation to the forces exerted on the heart and blood vessels. A blood pressure ... | 01/22/2008 |
| 7318370 | Tie rod for booster and booster comprising such a tie rod A tie rod (40) for mounting a booster and the brake control master cylinder on a bulkhead (3) of the vehicle engine compartment. The tie rod (4) comprises, at each of its ends, a shoulder (43, 44) defining a bearing surface having a frust... | 01/15/2008 |
| 7288323 | Vulcanized rubber composition and articles manufactured therefrom The rubber compositions described herein have been found to have an exceptionally long life as a spring-biased actuator diaphragm material that maintains its position compressed, e.g., bolted, between opposed flanges, while maintaining excellent compressibility, low... | 10/30/2007 |
| 7209806 | Self-contained electronic pressure monitoring and shutdown device The invention is a self-contained process shutdown device that detects abnormal pressures and initiates shutdown by removing the pneumatic or hydraulic pressure needed for a given process or flow to continue. The process' pressure is detected by means of a switch-ga... | 04/24/2007 |
| 7198474 | Pump having shape memory actuator and fuel cell system including the same A pump having a linearly movable shaft, a rotatable hub operably connected to the shaft, and shape memory actuator operably connected to the rotatable hub, and a fuel cell system including the same. ... | 04/03/2007 |
| 7174794 | Rotation sensor and coupling for rotation sensor A coupling includes a first coupling member, a second coupling member, and a third coupling member being located in between the first coupling member and the second coupling member. The third coupling member has formed thereon a first pair of connecting elements dia... | 02/13/2007 |
| 7152456 | Automated robotic measuring system An automated coordinate measuring system comprising a measuring arm used for acquisition of geometry data that incorporates an exoskeletal structure resilient to physical perturbations including thermal changes and vibrations which may affect coordinate data acquisi... | 12/26/2006 |
| 7150344 | Actuator and slack adjuster A fluid operated brake actuator is provided composed of a common housing, a shaft rotatable within the housing, the shaft being rotatable to engage and disengage a brake, a vane connected to the shaft, the vane being responsive to fluid pressure to rotate the shaft,... | 12/19/2006 |
| 7121191 | Air-operated brake actuator with control valve An air-operated brake actuator system of a vehicle comprises a spring brake actuator and a service brake actuator, the spring brake actuator including a sealed housing with a spring chamber and a pressure chamber, and a hollow actuator rod disposed in the spring bra... | 10/17/2006 |
| 7108231 | Adjustment mechanism for a variable-shape wing Adjustment mechanism for adjustment area of variable-shape flow surface with two opposite skin surfaces includes plurality of whirl chambers swivelably arranged next to one another so that the whirl chambers are swivelable relative to one another, and the whirl cham... | 09/19/2006 |
| 7100491 | Fluid-powered mechanical actuator and method for controlling A fluid-powered mechanical actuator having a proximal end and a distal end and having a plurality of hollow tubular elements hingedly connected in end-to-end linked relationship to form a variable angle therebetween, each such link having one degree of freedom; prov... | 09/05/2006 |
| 7055782 | Cellular actuator device and methods of making and using same A cellular actuator device suitable for a control surface of an aircraft or space craft has a number of elementary cells which are combined to a common arrangement and are formed by pressure-tight chambers. The elementary cells can be acted upon by a pressure medium... | 06/06/2006 |
| 7055867 | Brake servo comprising a connecting element with a defined angular position The present invention relates to a brake booster with at least one booster housing section including an opening into which a sealing element made of a flexible material is mounted, said sealing element including a recess into which a pneumatic connecting element, in... | 06/06/2006 |
| 6928920 | Wall arrangement for a servomotor A movable wall for separating an interior of a housing for a brake booster into a first chamber and a second chamber. The movable wall is characterized by a diaphragm, a backing plate and a hub member. The diaphragm has a peripheral bead secured to the housing and a... | 08/16/2005 |
| 6916049 | Corrugated pipe coupling having six degrees of freedom A pipe coupling for joining two sections of pipe provides six degrees of freedom where the pipe coupling includes an inlet portion, an outlet portion disposed opposite the inlet portion, and an intermediate portion disposed between the inlet and outlet portions for ... | 07/12/2005 |
| 6907818 | System and method for providing dry filtered air to a brake actuator A spring brake actuator that utilizes a valve for providing compressed air to a spring cavity, the air having previously been dried and filtered so as to prevent contaminates and moisture from corroding and/or damaging the spring in the spring cavity, the valve bein... | 06/21/2005 |
| 6895853 | Tandem brake booster A tandem brake booster has a housing defined by a front shell that is joined to a rear shell to create an interior cavity. The interior cavity is divided by first and second diaphragm assemblies that are separated by a partition member to respectively isolate a firs... | 05/24/2005 |
| 6796215 | Membrane pump A membrane pump (104) with an operating membrane (1) delimiting a conveying space (2), and a supplemental membrane (3) arranged on the side of the operating membrane (1) facing away from the conveying space (2), with a membr... | 09/28/2004 |
| 6718766 | Pump-integrated flexible actuator A pair of flexible actuators according to the present invention is supported by a fixture made of a hard rubber at base ends of the flexible actuators. Each flexible actuator includes a movable unit that is capable of bending, a pump unit integrally connected to the... | 04/13/2004 |
| 6626080 | Triple power booster for brake systems A power booster for a brake system including a housing having an interior and a pair of diaphragms separating the interior of the housing into three chambers. A power piston assembly is coupled for movement with the diaphragms and includes an output membe... | 09/30/2003 |
| 6604451 | Fluid actuator A fluid actuator applicable to high load with small space, comprising a core with an output shaft and two discs; and a cylinder casing which receives the core in a hollow, an upper end of the upper shaft projecting out of an upper opening and the core is ... | 08/12/2003 |
| 6554374 | Tandem brake booster for automobiles A motor vehicle tandem brake power booster with two booster units each including a vacuum chamber and a working chamber each arranged in a partition divided housing. The pressure difference between the pressure in the vacuum chamber and the pressure that ... | 04/29/2003 |
| 6170385 | Brake booster A brake booster (10) comprising a housing (12); a diaphragm (16,18) mounted within the housing to define front and rear chambers (30-36) within the housing; and a cylindrical component (38) mounted within the housing and having an end (42) which passes th... | 01/09/2001 |
| 5941610 | Tandem vacuum servo unit for a vehicle braking system A tandem vacuum servo unit includes a movable power piston having a supporting portion and a front movable wall member having a first engaging portion for engaging the movable power piston. The first engaging portion has an input side face that engages th... | 08/24/1999 |
| 5937733 | Spring brake actuator with internal breathing conduit A spring brake actuator (10), with a large-force compression spring (82) in a second spring chamber (78) of the housing, has vent openings (100) in the housing communicating with the second spring chamber (78). A filter assembly (134) covers the vent open... | 08/17/1999 |
| 5927177 | Multi-diaphragm actuator A multiple diaphragm actuator for exerting linear forces of precise and repeatable amounts in opposite directions with no friction and no fluid leakage.... | 07/27/1999 |
| 5878651 | Tandem vacuum brake booster A tandem brake booster having a housing with a first front chamber separated from a first rear chambers by a first wall and a second front chamber separated from a second rear chamber by a second wall. The first and second front chambers are connected to ... | 03/09/1999 |
| 5878650 | Power booster sealing mechanism A power booster includes a housing with a rear housing section and a front housing section defining an internal cavity. A housing wall separates the internal cavity into a first chamber and a second chamber with an opening formed in the housing wall, wher... | 03/09/1999 |
| 5743167 | Pneumatic booster A tandem pneumatic booster having a shell body, the inside of which is divided into two, front and rear, chambers by a center shell. Each chamber includes a negative pressure chamber and a working pressure chamber. A valve body is slidably fitted in the s... | 04/28/1998 |
| 5704455 | Automatic brake booster An automatic brake booster having the functioning of an automatic brake, or more specifically, an improvement of bellows contained in a shell thereof is disclosed. The bellows comprises a stepped tubular member having portions of different diameters, name... | 01/06/1998 |
| 5697285 | Actuators for simulating muscle activity in robotics An apparatus generates power at micro-scale dimensions that is sufficient to simulate the muscle activity required by the joints of robotic fingers. The apparatus includes a bellows device for generating a motion stimulus in response to pressure changes w... | 12/16/1997 |
| 5680807 | Vacuum brake booster for motor vehicles To prevent a rolling diaphragm (13), which forms the movable wall (4) of a vacuum brake booster along with a metallic diaphragm disk (12), from becoming detached from an annular groove (52) accommodating a radially inner bead (32) of the rolling diaphragm... | 10/28/1997 |
| 5664479 | Tandem vacuum booster A tandem vacuum booster includes a front shell and a rear shell which are connected to each other to form a housing, a front movable wall having an outer circumferential portion that is fit in a fluid-tight manner between the front shell and the rear shel... | 09/09/1997 |
| 5623862 | Long stroke spring brake actuator A long-stroke fail-safe spring brake assembly for heavy duty vehicles comprises aligned first and second cups secured adjacent one another to form a housing for a compressed power spring which biases a spring piston, a hollow tubular push rod having one e... | 04/29/1997 |
| 5570622 | Power booster with guided power piston A guide rod extends longitudinally through the power piston of a vacuum power booster providing lateral support thereto and tying the master cylinder housing to a bracket on the rear of the power booster housing. A guide rod provides a means of positively... | 11/05/1996 |
| 5568761 | Pneumatic Jack Pneumatic jack of the type comprising a rigid body (1) joined to the outer edge of a deformable membrane (2) so as to delimit with the latter a chamber of variable volume capable of being subjected to either atmospheric pressure of a negative pressure, vi... | 10/29/1996 |
| 5560280 | Repairable tamper-proof brake A pneumatic spring brake is improved so as to be not only tamper proof but repairable as well. Such a brake is formed of a spring chamber head and adapter head, both of which define rigid mating rims that are disposed in mutual, longitudinal alignment and... | 10/01/1996 |
| 5507216 | Tandem type vacuum booster In a tandem type vacuum booster a coupling cylinder extending from the inner peripheral edge of a front booster piston is coupled to a piston boss with bolts, and the inner peripheral bead of the front diaphragm is held inserted between the front booster ... | 04/16/1996 |
| 5476032 | Brake-booster of the partial vaccum type The invention relates to a removable thrust rod in a brake-booster of the partial vacuum type. The thrust rod (24) is attached securely to a skirt-shaped component (42) which surrounds the reaction disk (30) and to a component (44). A detachable component... | 12/19/1995 |
