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7647860 |
Diaphragm and a diaphragm pump
A diaphragm for a diaphragm pump, which diaphragm is asymmetrical about its longitudinal axis wherein the diaphragm has a central portion and a surrounding annular convolute portion. The convolute...
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7614338 |
Piston, method of producing the piston, and pump having the piston
A piston 1 which is to be movably supported in a cylinder 11 of a pump 10 to be reciprocally driven is formed by a fluororesin so that it is not impaired by a corrosive liquid. A cylindrical outer...
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7335003 |
Precision dispense pump
Precision dispense pumps comprise a housing that has an internal chamber disposed therein. A pressurizing assembly disposed within the chamber and includes a cylindrical pressurizing member having...
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7293967 |
Pump apparatus
A constant rate discharge pump comprises a rotary shaft which is rotatable together with a rotary driving source, a piston which is displaceable in an axial direction in a pump chamber of a body by...
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7255036 |
Pneumatic servomotor comprising a diaphragm and/or a joint which is overmoulded onto the skirt
A pneumatic servomotor (12) for an assisted braking having a rigid axial casing (16) with a movable substantially truncated-cone shaped transverse skirt (18) that is integral with a piston (20) for...
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7077052 |
Strut assembly with inverted air spring configuration
An air spring assembly is mounted to a shock absorber to form a strut assembly. The shock absorber includes an outer cylinder with a shock piston and piston rod mounted within the outer cylinder....
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6928918 |
Pneumatic brake booster comprising improved sealing means
A pneumatic brake booster comprising an envelope of longitudinal axis formed of a dish having a rim and a lid. The envelope defines an interior volume that is divided into a variable-pressure work...
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6907817 |
Linear actuator
A linear actuator having a low profile and a long stroke is provided. The actuator includes a housing integrally connected to a telescoping piston. The piston may be extended by a fluid such as...
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6695279 |
Pressure-responsive actuator
In a pressure-responsive actuator, the inside of a case is divided into first and second air chambers by a diaphragm, and a coil spring is accommodated in the second air chamber for exerting a...
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6267302 |
Spray gun with rolling wall diaphragm and quick disconnect housing
A spray gun configured with a roiling wall diaphragm piston and vented piston cylinder connecting the needle to the needle actuator and isolating the liquid chamber of the nozzle body from the...
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6079959 |
Reciprocating pump
Pumps of this invention comprise a pump housing having at least one pressurizing chamber disposed therein, and a pressurizing member is disposed within the pressurizing chamber. The pressurizing...
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6068198 |
Aerosol generating and dispensing system
A generator/dispenser for mono-dispersed aerosol, with droplet size precisely controlled by a stepper motor and a nozzle array having a great number of operational micro-vias, and with fluid volume...
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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...
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5918853 |
Vacuum valve control device and vacuum valve
A vacuum valve includes a housing having an operating chamber, a plunger provided in the housing; and a self-lubricating rolling diaphragm provided between the plunger and the housing. The rolling...
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5913665 |
Fill pump with rolling diaphragms attached by vacuum to the piston
A pump mechanism for a fill system of a packaging machine is set forth. The pump mechanism is utilized to pump a product that is dispensed by the fill system and includes a pump chamber for...
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5897304 |
Flow-through vertical filling pump with a plurality of diaphragms
A flow-through filling pump for receiving a liquid supply and discharging a predetermined amount of the liquid therefrom includes a housing defining a supply chamber and a discharge chamber and a...
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5794509 |
Proportional pneumatic fin actuator system without feedback control
An actuator system having a motor that drives a pneumatic spool valve to a known position based upon the number of step commands delivered to it. Valve ports or passages uncovered by the net...
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5771774 |
Spring brake actuator having plastic pressure plate assembly
An air-operated diaphragm spring brake actuator has a pressure plate formed entirely of plastic. The diaphragm is secured to the pressure plate by ultrasonic welding. The pressure plate also has a...
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5727447 |
Supercharge pressure control apparatus
A supercharge pressure control apparatus comprises a crimped member for securing an enclosure to a mounting member fixed in an internal combustion engine by crimping, a notch formed at one end...
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5725365 |
Rolling diaphragm seal arrangement for a submersible pump system
A submersible pump cylinder (10; 110) for immersion in and displacement of a fluid (W), including a cylindrical housing (20; 120), a plunger assembly (45; 145) positioned for reciprocating motion...
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5716110 |
Brake booster system including a power piston slidably supported by a resilient convolution chamber at its peripheral edge
A housing of a brake booster 100 includes a pair of shells 1 and 5 and a ring 3 interposed therebetween which cooperatively define an interior space for accommodating a power piston 13. The...
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5673607 |
Rolling head diaphragm
A rolling head diaphragm and dome-shaped piston configuration where the geometry of the diaphragm and piston, and the length of stroke, are modified to enable the commonly known rolling wall action...
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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...
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5560276 |
Movable wall for a pneumatic booster
A pneumatic booster having a casing (16) formed from a cylinder (32) and a cover (34). The casing (16) is divided into two chambers (18,20) by a movable wall (10). The movable wall. (20) has a...
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5538478 |
Preventive structure for preventing extraordinary deformation of a diaphragm of an oil hermetic type tensioner
A tensioner for a chain or toothed belt which includes an oil reservoir. Oil contained in the oil reservoir is hermetically sealed by a diaphragm fixed to the oil reservoir by a plug. A...
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5524526 |
Vacuum motor for an automotive vehicle
A vacuum motor 10 for an automotive vehicle comprises a generally cylindrical housing 12 having an end wall 14 with the depression 16 therein and a diaphragm 22 axially reciprocating within the...
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5477682 |
Hydraulic master cylinder and reservoir assembly
A hydraulic master cylinder and reservoir assembly having a master cylinder body with a fluid reservoir, and a master cylinder bore with a piston assembly sealingly reciprocal within the bore. The...
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5363743 |
Fluid pressure servomotor
A fluid pressure operated servomotor having a housing shell containing a flexible diaphragm forming a fluid pressure chamber with a port through the housing connectable for receiving a fluid...
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5355770 |
Brake booster
The invention relates to a brake-booster comprising a casing (10) within which is found a piston structure which, with the help of an unrolling membrane (12), defines a front chamber (16)...
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5332370 |
Miniature diaphragm pump
A miniature diaphragm pump comprises a motor having an output shaft rotating about its axis, an eccentric pin fixed in eccentric relation to the axis of the output shaft, a drive member connected...
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5316273 |
Counterbalance actuator having an extended stroke
A counterbalance actuator is disclosed for reducing the energy required in weight lifting operations. The counterbalance actuator includes a piston and a flexible bellows attached to the piston. A...
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5293811 |
Missile control fin actuator system
A control fin actuator (28) for a guided missile (20) includes a pressure actuator (40) having a slidable piston (44) inside a housing (42). Rolling diaphragm seals (50, 56) of the top piston face...
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5257682 |
Hub clutch assembly
A hub clutch assembly for a vehicle which comprises a drive axle, a wheel, and a housing of a closed structure. The wheel is fixedly mounted on the housing. A clutch is movable between a connecting...
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5255711 |
Spring-loaded pressure regulating valve including rolling diaphragm and compensation for variation of spring force with diaphragm displacement
A chamber (24) is filled with a fluid whose pressure is to be regulated to a predetermined value. A valve (30) is disposed between the chamber (24) and a high pressure source of the fluid. A...
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5207142 |
Diaphragm for a vacuum brake booster
A diaphragm for a brake booster having an annular inner bead with first and second radial surfaces separated by an apex. The second radial surface has a plurality of indentations that extend from...
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5184468 |
Brake power booster and master cylinder assembly with return spring plate
A vacuum brake power booster is presented in which the vacuum control valve (81) is arranged parallel to the master cylinder (55). The housing (92) of the booster is used as a carrier element for...
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5163355 |
Negative pressure booster equipment
According to the present invention, a rotation preventive portion for preventing the rotation of bead portion, such as a stepped projection, is provided on the bead portion of diaphragm, which is...
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5155997 |
Force-amplifying actuator with capsule-type transmission
A fluid transmission linear actuator having a chamber with a cylindrical boundary and a central axis. An output plunger has a head in the boundary. A neck is formed on the chamber with a passage...
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5138936 |
Unlimited amplitude rolling piston
A rolling piston comprises a substantially cylindrical piston slidably supported within a chamber. One end of the chamber is sealed by a first sealing cap including a circular base portion having a...
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5133187 |
Fluid circuit for maintaining constant pressure between two abutting solid objects
A fluid circuit assembly for maintaining substantially constant pressure between two abutting solid objects, the circuit assembly comprising a master cylinder assembly, a plurality of working...
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5090299 |
Piston unit with rolling membrane
A piston unit is disclosed which includes a pressure-compensating device wherein pressure variations in a product line are dampened by subjecting a side of the piston (6) remote from the product...
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5090298 |
Brake booster with sealed passage for mounting
The invention relates to a brake booster comprising a casing (10) and a flexible diaphragm (12) which sealingly divides the interior of the casing into a front chamber (16) and a rear chamber (18)....
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5062348 |
Seal unit for brake booster
A seal unit is provided for a brake booster such as of a tandem type which includes a center plate within its shell. The brake booster includes annular means disposed within the shell for...
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5048648 |
Piston cap
The present invention relates to a piston cap for a disc brake, comprising a brake motor consisting of a piston (24) sliding in a cylinder (26), this cap being composed of a flexible material...
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5029813 |
Diaphragm stem seal attachment
A sliding stem valve for controlling fluid flow in a valve body having a seat, a bonnet, a valve stem and plug slidably mounted in the bonnet for engaging the seat during valve shut-off, and a...
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5027693 |
Combination diaphragm and valve body
The combination diaphragm and valve body comprises a plastic vacuum booster valve body (32) which has molded integrally therewith via living hinges (34) a plurality of diaphragm arms (36). The...
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5025709 |
Tandem type vacuum booster
In a tandem type vacuum booster, the booster comprises a first and a second flange, and the second flange is formed with a first stop projection and a second stop projection, the first stop...
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5007329 |
Working piston, in particular for a brake booster
Working pistons, in particular those of brake boosters, have to tolerate a considerable number of changes in stress and great forces acting on the piston. Simultaneously, it is an object to...
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4987920 |
Diaphragm actuated valve assembly
A pilot operated, diaphragm actuated fluid valve assembly having an annular main valve seat with a tapered annular surface disposed therearound. A movable diaphragm has a generally flat central...
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4988082 |
Spliced air sleeve assembly for air spring damper
A two-part, spliced air sleeve assembly for use with an air spring damper includes a first corded, resilient sleeve member bonded to a second corded, resilient sleeve member. The bond angles and...
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