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| Number | Title | Issue Date |
| 7770508 | Double-acting deformable fluid actuator of the muscle type with three chambers A double-acting deformable fluid actuator with three chambers consists of three axisymmetrical coaxial membranes (10, 11 and 12), constrained by two end pieces (13 and 14) so as to identify three chambers, namely, an inner chamber (15 | 08/10/2010 |
| 6666127 | Artificial muscle A hydraulically actuated artificial muscle for use with orthetic devices, prosthetic devices or as an actuator for other applications in medical or robotic devices. Working fluid is pumped between two expandable fluid-containing cells, which are complimen... | 12/23/2003 |
| 6422356 | Automatic transmission with band brake and hydraulic operator The automatic transmission of the present invention prevents fluctuation of torque transmission through a band brake. In the hydraulic operator for the band brake, a resilient elastic cushion is provided between a rod abutting one end of the band of the b... | 07/23/2002 |
| 5067390 | Double-acting flexible wall actuator A double-acting actuator includes a first tubular body made of an elastic material, a first reinforcing braided structure surrounding the first tubular body, a second tubular body made of an elastic material surrounding the first reinforcing braided struc... | 11/26/1991 |
| 5040452 | Fluid actuators A fluid actuator including a pair of hingedly interconnected members between which is located a fluid expansible element such as a bellows which may be expanded upon application of fluid pressure to cause pivotal movement of the hingedly interconnected me... | 08/20/1991 |
| 4932727 | Automotive vehicle brake system In an anti-lock automotive vehicle brake system comprising a vacuum brake power booster, a considerable reduction of manufacturing and assembling costs is obtained while the system's reliability in operation is simultaneously augmented by the incorporatio... | 06/12/1990 |
| 4850263 | Spring brake construction and method of manufacture thereof An improved spring brake construction is formed by a pair of concave metal housng portions having peripheral lips. Once the internal components of the spring brake are assembled within the housing portions, the lip of one housing portion is spun over the ... | 07/25/1989 |
| 4831915 | Dual diaphragm three position actuator A dual diaphragm, multiposition vacuum actuator. Dual diaphragms in a housing define two vacuum chambers. A spring urges one diaphragm and an actuator rod extended, and the other diaphragm retracted. Vacuum in one chamber retracts the extended diaphragm a... | 05/23/1989 |
| 4756237 | Device for converting energy of fluid medium into mechanical work of working member According to the invention, the device comprises a housing (1), two chambers (2, 3) interconnected through a pipeline (4) and disposed in the housing opposite to each other. Each chamber (2 or 3) has a piston made in the form of an elastic sleeve (10 and ... | 07/12/1988 |
| 4679491 | Reaction mechanism for tandem brake booster A reaction mechanism (462) that is carried on a disc (80) of a wall (70) to provide a control mechanism (81) with an indication of the output force being supplied to a push rod (132) through the combined outputs of wall (70) and wall (18) which move in op... | 07/14/1987 |
| 4672883 | Reaction mechanism for brake booster A reaction mechanism for use in a vacuum brake booster (10). A lever (86) transfers a reaction force from a first plunger (64) into a second plunger (110) to provide an operator with an indication of the output force being produced in response to an input... | 06/16/1987 |
| 4664360 | Engine mount A hydraulically damped engine mount comprising a working space bounded by a mounting bracket, a supporting spring and a partition wall, and an equalizing space bounded by the partition wall and by a resilient buffer wall, which are interconnected through ... | 05/12/1987 |
| 4649802 | Control valve A control valve (81) for a vacuum brake booster (10) having a sleeve member (96) for positioning a poppet valve (92) in a bore (74) of a hub (28) and defining the limits for a continuous flow path (98) between a first chamber (30) and a second chamber (68... | 03/17/1987 |
| 4646718 | Combined pressurized air solar heat sensing head assembly and a pressurized water drive system used to move solar energy collectors in tracking the sun In moving solar energy collectors to track the sun, there are combined: a pressurized air solar heat sensing head assembly, utilizing compressed air in adjacent and opposing chambers, each chamber having a flexible diaphragm closely contacting an actuator of a... | 03/03/1987 |
| 4632015 | Tandem brake booster A tandem brake booster having first and second lever arms for transferring an output force from a second wall into an output member in response to an input signal being applied to a control member. A first cam surface on each lever arm engages an annular ... | 12/30/1986 |
| 4571943 | Tandem brake booster with hydraulic mechanism for rear diaphragm force reversal A vacuum brake booster includes a pair of diaphragms which move in opposite directions during a brake application. One of the diaphragms is connected to a valve assembly to generate a first force assisting braking while the other diaphragm generates fluid... | 02/25/1986 |
| 4475439 | Tandem brake booster A tandem brake booster (10) having first (24) and second (28) walls that move in opposite directions within a cavity to produce an output force. A lever arrangement (48) attached to the second (28) wall engages a fulcrum (70) to transfer a force produced ... | 10/09/1984 |
| 4457673 | Pump and actuator mechanism A pump is described in which a flexible enclosure defines a pump chamber whose contents are expelled by movement of a pusher plate engaged with the enclosure. The pusher plate is moved by an elongate beam spring interconnecting the pusher plate with a sol... | 07/03/1984 |
| 4452126 | Pneumatic drive A pneumatic drive has at least one working cylinder composed of a pair of parallel stationary walls and a pair of walls which extend at right angles to the first pair and are movable relative thereto, towards and away from each other. This varies the volu... | 06/05/1984 |
| 4387626 | Tandem brake booster A tandem brake booster (10) having a housing (12) with a cavity therein divided by a first wall (24) and a second wall (28) into first, second and third chambers (20, 26 and 30). The first and second chambers (20, 26) are connected to each other through a... | 06/14/1983 |
| 4386624 | Pilot controlled regulator second stage This scuba regulator second stage includes the following improvements: (a) a diaphragm assembly using a pair of generally conical flexible diaphragms facing each other and clamped together about a portion of their periphery, the unclamped peripheral sections f... | 06/07/1983 |
| 4384829 | Pump and actuator mechanism A pump is described in which a flexible enclosure defines a pump chamber and in which the contents of the pump chamber are expelled by movement of a pair of opposed pusher elements engaged with the enclosure. The pusher elements are displaced by at least ... | 05/24/1983 |
| 4295633 | Expansible device An expansible device for exerting force which has a generally "S" shape cross-section, being formed by stepped diameter cylinder, and arrangements using such a device are disclosed. The device may exert sealing forces and be controlled by admission of flu... | 10/20/1981 |
| 4242007 | Method and apparatus for dispensing welding flux A method and apparatus for dispensing welding flux involving a flux supply and dispensing system comprising a tank assembly that includes an upper flux receiving chamber, a lower flux dispensing chamber, and a flux transfer chamber intermediate the upper ... | 12/30/1980 |
| 4108285 | Caliper brake actuating cylinder Pneumatic caliper brake actuator having diaphragm, piston member and cylinder body. Cylinder body has outer portions having clearance recesses therein to accept the outer ends of arms carrying brake shoes. At least two return compression springs extend be... | 08/22/1978 |
| 4055200 | Moisture detection apparatus A soil moisture detector is disclosed herein for incorporation between a timer controller and an electrical water supply valve. The detector includes a pneumatic diaphragm apparatus whereby a pressure level is maintained or released between a pair of diap... | 10/25/1977 |
