43 results about "Membrane part" patented technology

A flexible diffuser membrane is provided with a unique system of perforations arranged to result in uniform distribution of gas even though the membrane deflects to different extents or the submergence varies in different parts of the membrane. The perforations are arranged to provide less perforation area per unit of perforated membrane surface area in the membrane parts that deflect the most or are submerged least and greater perforation area in membrane parts that deflect the least or are submerged most. The perforations can be slits arranged in parallel rows on a tubular membrane, in concentric circles or another pattern on a disk membrane, or in still a different pattern on a flat panel diffuser membrane. The slit length or separation can be varied between different zones on the membrane surface or the spacing between rows or circles can be varied.

A rupturable closure for use with a flexible container that is especially suited for pouring viscous fluids such as motor oil. The closure is secured to the pouring spout or other dispensing opening of the container and retains the viscous fluid in the container as the container is brought into inverted position for pouring. Notwithstanding the ability of the closure to hold in the viscous fluid, the closure also allows the closure to breathe when the cap is removed so as to relieve small variations in pressure as the flexible container is first grasped for pouring and thereby prevent premature rupture of the closure before or as the container is inverted for pouring. Such a closure includes a membrane secured over the dispensing opening of the container. The membrane has a small primary vent orifice in the region over the dispensing opening that is sized to permit the membrane to breathe. The membrane also has three or more part lines terminating in the primary vent orifice along which the membrane parts when the flexible bottle is squeezed. The part lines extend outward from the vent orifice substantially to the periphery of the dispensing opening. Each of the part lines is interrupted by a small connecting element across the line proximate to the primary vent orifice. The primary vent orifice and the connecting elements are of a size, and the connecting elements are positioned sufficiently close to the primary vent orifice, such that the membrane will contain the viscous fluid within the container when the container is brought into inverted position for pouring, yet the connecting elements will break away and the membrane will separate along the part lines when the flexible container is squeezed, thereby enabling the viscous fluid to flow through the dispensing opening.

A closure (20, 2GA, 2GB) is provided for a system with an opening. The closure (20, 20A, 20B) has a body (24, 24A, 24B) with an outer end (32, 32B) and a through passage (30, 3GB) for communicating with the system opening. The body (24, 24A, 24B) has a membrane (60, 60B) mitially occluding the through passage (30, 30B). The closure (20, 20A, 20B) has a lid (26, 26A. 26B) to accommodate movement relative to the body (24. 24A, 24B) between a closed position restricting access to the through passage (30, 30B) and an open position permitting greater access to the through passage (30, 30B). The body (24, 24A, 24B) thither has a separation member (70, 7GB) that can be engaged by a user to separate at least a part of the membrane (60, 60B) from the body (24, 24 A. 24B). The separation member (70, 70B) extends away from the membrane (60, 60B) and has a deployed configuration wherein the separation member (70, 70B) projects outwardly beyond the body outer end (32, 32B) when the lid (26, 26A, 26B) is in the open position. The separation member (70. 70B) further has the capability for assuming a stored configuration with the separation member (70, 70B) engaged by the lid (26, 26A, 26B) with the lid (26, 26A, 26B) in the closed position. Resiliency of the separation member (70, 70B) urges the separation member (70, 70B) {acute over (ι)}{umlaut over (ι)}oιη the stored configuration to the deployed configuration when the lid (26, 26A, 26B) is moved from the closed position to the open position.

The invention discloses a hollow fiber ultrafiltration membrane filter device which is characterized in that the hollow fiber ultrafiltration membrane filter device comprises a main body (7) of a membrane part, outer cylinders (6) are sheathed at the upper end and the lower end of the main body (7) of the membrane part, a hollow fiber (11) is arranged in the main body (7) of the membrane part, a water distributor (9) is arranged at the upper end of the hollow fiber (11), a membrane sub-grid supporting part (5) is arranged at the lower end, pore diameters of water distribution holes of the water distributor (9) are gradually increased along with the increase of the distance to a water inlet (10), the water distribution holes are annularly arranged, the upper part of the outer cylinder (6) at the upper end of the main body (7) of the membrane part is connected with an upper terminal (8), the lower part of the outer cylinder (6) at the lower end of the main body (7) of the membrane part is connected with a lower terminal (2), and a port (1) is formed at the lower end of the lower terminal (2). The hollow fiber ultrafiltration membrane filter device has the advantages of beautiful appearance, convenient manufacture and assembly, large flux, good sealing performance and small occupied space, thereby being particularly applicable to industrial water purification.

The present invention provides a subcutaneous vein access port, the position of which is easily identifiable while the subcutaneous vein access port is implanted in a human body, and a medicine injection device having the same. The subcutaneous vein access port is implanted inside a living body and connected to a subcutaneous vein, and comprises: a housing part; a cover membrane part; a conduit part; and a light source part. The housing part may have a reception part formed therein and supplied with medicine. The cover membrane part is disposed at the upper end of the housing part and may sealthe upper side of the reception part. The conduit part is disposed in the housing part and may be inserted into and connected to the subcutaneous vein so as to connect the subcutaneous vein to the reception part. Further, the light source part may emit light such that the light is emitted to the outside through the cover membrane part.

A bolometric detector including an absorption membrane, for converting an incident electromagnetic radiation into heat; and a reflector, for reflecting to the absorption membrane part of the incident electromagnetic radiation having passed there through, is provided. The bolometric detector includes a non-metallic layer, situated between the absorption membrane and the reflector, having a series of index jumps, so as to form a network resonating at a wavelength of interest λ0; the mean pitch of the network is less than λ0; and the optical distance between the absorption membrane and the reflector is substantially equal to a multiple of λ0 / 2.

It is made possible to provide a deformable mirror apparatus which is deformable to a complicated shape (high-order shape). A deformable mirror apparatus includes: a substrate; a plurality of electrodes provided on the substrate; a spacer fixed above the substrate, having a first opening passing through from a first face of the spacer facing to the substrate to a second face of the spacer facing opposite from the first face, surrounding the electrodes, and having a step on the second face; a drive part including a membrane part disposed so as to cover the step of the spacer and so as to be opposed to the electrodes, a casing part having an opening at a bottom face of which the membrane part is exposed and supporting the membrane part, and a reflection film provided on the membrane part; and a voltage generator configured to generate predetermined voltage patterns on the electrodes, respectively.