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7634962 |
Diaphragm for a diaphragm valve
A diaphragm for a diaphragm valve in particular for liquid fluids includes a backing membrane and a primary membrane which are supported by a central connection pin. Disposed axially between the...
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7363850 |
Diaphragm pump
The invention relates to a diaphragm pump ( 1 ) including a working diaphragm ( 3 ) that, during pumping movements, oscillates between a bottom dead center and a top dead center. The working...
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6923108 |
Composite diaphragm for diaphragm pumps
A composite diaphragm for diaphragm pumps comprises an elastomer body and a polytetrafluoroethylene (PTFE) coating on its back side. The elastomer body has a shape of a circular dish that has an...
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6837263 |
Liquid level control system
A liquid level control system including a tank; a source of liquid in communication with the tank; a pressure fluid actuated valve for controlling the flow of liquid to the tank from the source; a...
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6722262 |
Pneumatic actuator with a nested diaphragm assembly
A diaphragm assembly for use in pneumatic actuators uses two or more diaphragms, one nested inside of the other. Each of the diaphragms, when shaped, includes a fabric pattern. The fabric patterns...
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6685164 |
Control valve and diaphragm for use in the control valve
The control valve according to the present invention has a high durability, so that the valve is not easily damaged even in case that the valve is provided in a corrosion gas current path. The...
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6647860 |
Thin-walled brake diaphragm
A fabric reinforced, resilient brake diaphragm for use in a fluid pressure operated braking system is provided. The diaphragm comprises an annular outer flange for engaging the housing of the...
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6523454 |
Device for monitoring the integrity of a diaphragm
A device for monitoring the integrity of a diaphragm ( 1 ) of a diaphragm transport+ unit, made of one or a plurality of layers, having a resistance device ( 3 ) connected to one layer and having a...
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6205907 |
Method of making fiber reinforced elastomeric diaphragms and fiber reinforced diaphragms
A method of making an elastomeric diaphragm includes preparing a mixture of an elastomer containing dispersed fibers; heating the mixture so that the mixture flows under pressure; injecting the...
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6189435 |
Diaphragm
A diaphragm for a turbo charger actuator includes a layer of fabric having upper and lower surfaces. A first layer of elastomeric material coats at least a portion of the upper surface of the...
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6158327 |
Extended wear pump diaphragm
The present invention provides a diaphragm for use in pump applications in which at least a predetermined portion of such diaphragm is in contact with such outer piston which would tend to abrade...
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6142062 |
Diaphragm with modified insert
The present invention provides a diaphragm member for use in certain valve assemblies. Such diaphragm member comprises a generally circular diaphragm having a first predetermined diameter and...
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6047953 |
Diaphragm compression restrainer
A universal diaphragm made of elastomeric material having rigid solid compression restrainers incorporated within the diaphragm for preventing overcompression of the diaphragm during the assembly...
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5950523 |
Composite diaphragm having two layers wherein the first layer is chemically resistant and of reduced thickness in the area of flex of the body
A composite flexible diaphragm for a diaphragm pump. The diaphragm has a diaphragm body with an outer perimeter, a center axis, and first and second exterior surfaces. The body has a perimeter...
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5907992 |
Abrasion resistant diaphragm
The present invention provides an improved diaphragm which will substantially resist detrimental abrasive wear. Such diaphragm being used in certain applications in which at least a portion of such...
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5762315 |
Valve actuator with pliable pressure conversion device
An actuator for fluid control valves with a reversible power module having a stationary inner member and a coaxially aligned movable outer member coupled to the valve flow control element and...
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5743170 |
Diaphragm mechanism for an air driven diaphragm pump
A flexible diaphragm for an air driven diaphragm pump having a circular configuration with an inner attachment portion, an outer attachment portion and an annular flexure portion bounded by...
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5687633 |
Insert type member for use in a flexible type pump diaphragm
An insert member for use in a flexible diaphragm portion of a pump which enables such flexible diaphragm portion of such pump to be provided with a substantially uniform non-obtrusive surface area...
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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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5634391 |
Inert plastic coated flexible type diaphragm for application in a sanitary type pump
Inert plastic coated flexible diaphragm for sanitary pump applications includes a first body portion, disposed in center of diaphragm, which is relatively thick and exhibits a first degree of...
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5490659 |
Reinforced diaphragm for flush valves
A diaphragm for flush valves has a plurality of concentric reinforcing rings spaced closer together at the smaller diameters of the diaphragm than at the larger diameters. The reinforcing rings...
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5349896 |
Pump diaphragm
A flexible pump diaphragm for pumping fluids is described in which the diaphragm has a number of ribs or troughs located radially across its circumferential flexure portion.
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5335584 |
Improved diaphragm
The diaphragm has an outer flange and an inner portion which is deflectable relative thereto, with the inner portion having a lone, primary annular corrugation connecting a center of the inner...
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5291822 |
Diaphragm for pressure regulators and method of making
A method of making and the product of the method in a diaphragm for use in a pressure regulator, or other similar uses, where leakage around the confined edges of the diaphragm must be avoided. The...
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5262092 |
Synthetic composite fuel metering membrane
A synthetic composite flexible diaphragm of a fabric of warp-knitted polyester fibers and an elastomeric polymer coating applied only to one side of the fabric and disposed in interstices between...
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5220863 |
Conical diaphragm and method of making
A fabric reinforced molded conical diaphragm and method of making in which the parting line of the diaphragm mold is arranged such that the flashing and reinforcing fabric of the molded diaphragm...
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5217797 |
Chemically resistant diaphragm
A composite diaphragm containing a flexible composite of a flexible polymer and an expanded polytetrafluoroethylene fabric on which is adhered to one surface a solid polytetrafluoroethylene layer....
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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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5074196 |
Flexible gas impermeable sandwich diaphragm
The present invention provides a compliant molded diaphragm which includes an operable surface area for forming a flexiblle barrier to prevent fluid flow between opposing sides of the diaphragm....
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5052276 |
Diaphragm construction
An improved diaphragm, which operates and has the structure of a short-thick beam, is comprised of a plug having a channel, a tire cord reinforcement is bonded to the plug, an elastomer cured to...
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4989497 |
Flexible diaphragm-extreme temperature usage
A diaphragm (10) suitable for extreme temperature usage, such as encountered in critical aerospace applications, is fabricated by a unique method, and of a unique combination of materials, which...
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4951554 |
Low stress diaphragm
A diaphragm for a diaphragm-type piston characterized by an S-shaped or ogee-like profile approximating a theoretical model that is substantially free of distortion in a selected position of the...
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4915017 |
Diaphragm and a diaphragm-actuated fluid-transfer control device
A diaphragm for a diaphragm-actuated fluid-transfer control device, which comprises a flexible, substantially non-stretchable diaphragm body of a substantially circular outline surrounded and...
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4841845 |
Hydraulic or pneumatic drive device
The device comprises on the one hand at least one substantially tightly-sealable chamber, which is bounded partly at least by a wall from an approximately resiliently distortable material, and on...
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4817913 |
Flushometer relief valve
This invention relates to a flexible diaphragm assembly for use in a flush valve having a hollow body, an inlet, an outlet, a valve seat formed in the body between the inlet and outlet, and an...
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4779459 |
Gas meter including a synthetic membrane
A gas meter includes a housing made of thermoplastic material having an inside wall defining two measuring chambers and a deformable membrane disposed between the two measuring chambers. The...
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4755111 |
Pumping device, particularly suitable for compressing fluids on deep sea-bottoms
Hydraulic-exchange pumping device comprising two containers or tanks, inside each of which there are defined: a chamber for the product to be pumped, which is respectively connected, through a...
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4751869 |
High pressure fluid-driven tension actuators and method for constructing them
High pressure, fluid-driven tension actuators, axially contractible upon inflation by a suitable fluid such as compressed air to convert fluid pressure energy into linear contraction displacement,...
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4741517 |
Air spring with extensible fabric restraining cylinder
There is disclosed a rolling lobe fluid spring (10) having a rigid end cap (12) and a piston (14) with a generally tubular air impervious flexible membrane (18) sealingly attached thereto to form...
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4717117 |
Vacuum valve using improved diaphragm
A valve (10) comprising a plurality of passages (22,24), and an annular sealing area (30) in communication with one of the passages. The valve also includes a diaphragm (50), movably supported...
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4715578 |
Diaphragm valve
A pilot-operated diaphragm valve in which the diaphragm seats on a valve seat having an unconstricted flow annulus therearound, and support regions are provided on the valve seat and on the valve...
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4697674 |
Oleoelastic energy accumulator
An oleoelastic energy accumulator includes a rigid casing, at least one membrane of a polymeric material having a high deformability, and a liquid. The membrane has a curvilinear form, e.g.,...
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4619436 |
Control regulator having a fabric reinforced diaphragm
A rolling diaphragm regulator valve is affixed in a globe type valve body and includes a nonstretchable fabric reinforced elastomer diaphragm for covering and uncovering, by rolling action in...
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4615258 |
Drive device operated by a pressure fluid
In a drive device operated by pressure fluid a progressive linear or swinging or rotary movement of a driven element is produced by means of at least one lifting element. Between the lifting...
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4569634 |
Failure sensing diaphragm for a diaphragm pump
In accordance with the present invention, the imminent failure of a diaphragm due to the attack by a corrosive or a solvent or mechanical fatigue is predicted through the use of a diaphragm pump...
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4519298 |
Material handling device
A material handling device such as a pump, including a first housing part 12 having an internal surface 12A surrounded by a peripheral surface 12B, 12C facing in generally the same direction as the...
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4505450 |
Solenoid-operated pilot-actuated valve
A solenoid-operated pilot-actuated valve is provided of the diaphragm type which has particular utility for irrigation purposes. The valve also finds industrial utility where it is desirable to...
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4462850 |
Process of and apparatus for manufacturing bladders used for tire building machine
A process of manufacturing a bladder which is to be disposed on each of axially opposite end portions of a tire building machine having a tire building drum, respectively, and is employed for...
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4450855 |
Removable condensate collector for elevated water storage facilities
An improved removable condensate collector for elevated water storage facilities includes a membrane attached to the walls of such elevated water storage facility and positioned to prevent...
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4334838 |
Diaphragm type fluid pump having a flexible diaphragm with an internal reinforcing plate
A pneumatically powerable single action fluid pump has a housing, an improved diaphragm assembly dividing the housing into fluidly discrete propellant and pumping chambers, a fluid inlet and outlet...
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