289 results about "Rigid wall" patented technology

A self-sealing male connector device for connection with a female Luer connector. The device has an elongated male body configured with lengthwise relatively rigid and flexible wall segments cooperating to allow the body to be radially compressed from an expanded configuration to a contracted configuration. A closure cap formed with a resealable aperture is disposed on the distal end of the male body so as to be responsive to the compression of the male body. The relatively flexible wall segments may be installed within notches in the male body or be formed integral with the relatively rigid wall segments.

A plastic container comprised of a closed base, a body portion, and a neck portion with a dispensing opening. The closed base includes a substantially rigid support portion and a flexible portion. The body portion preferably includes a shoulder portion and a substantially rigid wall portion that includes a plurality of reinforcement formations. The container is configured so that the flexible portion of the base contracts upwardly about the support portion in response to vacuum pressures generated within the container, while the substantially rigid support portion of the sidewall remains substantially firm, for example, to accept or receive a label. If desired, the shoulder portion may include a logo and / or one or more pressure relief formations. A method for producing hot-filled, labeled containers is also disclosed.

A self-sealing male connector device for connection with a female Luer connector. The device has an elongated male body configured with lengthwise relatively rigid and flexible wall segments cooperating to allow the body to be radially compressed from an expanded configuration to a contracted configuration. A closure cap formed with a resealable aperture is disposed on the distal end of the male body so as to be responsive to the compression of the male body. The relatively flexible wall segments may be installed within notches in the male body or be formed integral with the relatively rigid wall segments.

An apparatus for measuring permeability accurately in expansive clay and non-expansive soils is provided. The apparatus includes hollow porous stone cylinders which prevent the sample from bulging and at the same time allow application of confining pressure on the soil sample enclosed in a flexible membrane, which simulates the field condition and allows for application of back pressure to aid in saturation. The apparatus also allows for accurate comparison of hydraulic characteristics of swelling clays with fluids of various dielectric and other properties. The apparatus can also be used to consolidate the sample either three dimensionally or in one direction and perform permeability tests as well as find out the consolidation characteristics of the sample.

A rotor for collecting and centrifuging biological fluids in a range of volumes. The rotor includes an elastic impermeable diaphragm which defines at least a portion of a variable-volume processing chamber, where the fluid is centrifuged. The rotor includes a rigid mounting member, to which the diaphragm is mounted and which is held and spun by a chuck. Preferably, this rigid mounting member includes a boundary wall which together with the elastic diaphragm defines the chamber. The boundary wall may be a substantially imperforate circular wall which extends to the periphery of the processing chamber but defining one opening, preferably near the axis of rotation, permitting a conduit or conduits to pass therethrough so as to be in fluid communication with the processing chamber. The rotor may include a separate structure for controlling the flow of liquid out of the chamber into the conduit. In a preferred embodiment, this outlet-control structure is a perforate, substantially rigid wall or plate, located within the processing chamber and mounted adjacent the rigid boundary wall. In an alternative embodiment, the outlet-control structure for controlling flow from the processing chamber to the conduit may include at least one tube or preferably a set of tubes, wherein each tube provides fluid communication between the chamber and the conduit. In one preferred embodiment, grooves in the boundary wall may be used as the outlet-control structure.

Low-cost, semi-permanent rigid-wall modular longhouse-type, peaked-roof structures, stadium-shaped (in plan view), made of light-weight, water-proof cellular extruded plastic sheet material die cut into blanks that are easily portable, quickly field erectable and dismountable by unskilled workers for a wide variety of uses. Two semi-circular end portions are spaced apart and joined by multiple segments of straight wall and roof modules, the length depending only on the number of intermediate segments. Blanks are easily folded on site into double-walled, bolt-together, modular wall and roof panels. Only four basic panel configurations are needed to form all structural elements. Multiple modular structures may be grouped to form larger compound structures with individual ones assigned to individual persons or dedicated work space usages: disaster shelters, sleeping, gathering, storage, hygiene, medical treatment, schooling, entertainment, goods manufacture, cooking, eating, herding, etc. Double-wall modules provide inter-stitial space for cold-weather insulation and passive ventilation in hot environments.

A reservoir (10, 26, 80, 126, 226, 380) includes a rigid wall (12, 28, 82, 128, 228, 382), a flexible membrane (14, 34, 134, 234, 334) sealingly secured to the rigid wall (12, 28, 82, 128, 228, 382) to define a variable volume chamber (18, 38, 138, 238, 338), and inlet (40, 140, 240, 340) and exit (42, 142, 242, 342) ports in fluid communication with the chamber (18, 38, 138, 238, 338). A drive surface (24, 50, 150, 250, 350) engages the membrane (14, 34, 134, 234, 334) to position it adjacent the rigid wall (12, 28, 82, 128, 228, 382) to define a minimum volume position. The drive surface (24, 50, 150, 250, 350) may be moved so that the membrane (14, 34, 134, 234, 334) flexes out of the minimum volume position to an expanded volume position. The membrane (14, 34, 134, 234, 334) may be coupled to the drive surface (24, 50, 150, 250, 350) or be uncoupled from the drive surface (24, 50, 150, 250, 350). The reservoir (10, 26, 80, 126, 226, 326) may be included in a closed blood sampling system (88) for drawing a sample of whole blood.

The invention relates to a railway vehicle front-end energy absorbing device which comprises an anti-creeping energy absorbing structure, a vehicle hook energy absorbing structure, a main energy absorbing structure and guiding structures. The vehicle hook energy absorbing structure is fixedly connected with the main energy absorbing structure through a vehicle hook base, the vehicle hook base is fixedly connected with the front end portion of the main energy absorbing structure, the main energy absorbing structure and the guiding structures are fixedly connected to a rigid wall at the front end of a vehicle body, the guiding structures are located on the two sides of the main energy absorbing structure and are in sliding connection with the main energy absorbing structure and the vehicle hook energy absorbing structure, and the anti-creeping energy absorbing structure is fixedly connected to a chassis at the front end of the vehicle body. According to the railway vehicle front-end energy absorbing device, the main energy absorbing structure, the vehicle hook energy absorbing structure and the anti-creeping energy absorbing structure are combined into a whole, and the energy absorbing amount of the vehicle body front-end energy absorbing device is greatly increased, so that the energy absorbing device can conduct deformation energy absorbing step by step and in order.

Foldable storage structures and methods of erecting, contracting and storing such structures are described. The storage structure includes effectively rigid wall panels coupled by hinges to form an enclosure. The wall panels can be foldable and connected to a foldable floor panel assembly. The structure has a roof assembly which has a foldable panel assembly which mounts to or within a cover. The preferred cover has two layers to provide a flexible pouch in which the floor panels, wall panels and roof panels can be stored when folded into contracted conditions. The cover is configured to be releasably coupled to the top edge of the wall panels. Encircling straps may be used about the folded parts of the structure to serve as carrying handles. The cover preferably serves as both the roof skin when erected and as a carrying case when the structure is collapsed for portability or storage.

An Emergency Isolation and Treatment Shelter (EITS) rigid wall system is modular and includes two support columns and a rigid wall assembly therebetween. The rigid wall assembly includes a lower panel extrusion, a lower panel, a center wall extrusion, and an upper panel. The lower panel and the upper panel are of equivalent dimensions and are interchangeable.

A trash container assembly includes a trash receptacle movable between collapsed and expanded positions; and a seat mount for mounting the receptacle on the back of a seat assembly, usually within a vehicle such as an car. Typically, the receptacle includes an accordion type or other collapsible wall and a pair of rigid walls connected to the collapsible wall. A liquid-impermeable trash bag is disposed within the receptacle. A lid is connected to the receptacle and a compartment for pre-moistened wipes or the like is mounted on the lid. The lid and compartment may be positioned atop the receptacle in the expanded position and beside the compartment in the collapsed position. A sidewall of the receptacle may define a recess for receiving the compartment in the collapsed position. The seat mount may include one or more straps for looping around a headrest and the back of the seat assembly.

The invention relates to a micro-perforated plate with a resonant sound absorption structure. The micro-perforated plate with the resonant sound absorption structure is characterized by comprising a rigid wall, a micro-perforated plate and a cavity which is formed between the rigid wall and the micro-perforated plate, wherein the two ends of the rigid wall are connected with the two ends of the micro-perforated plate through a flexible or elastic material respectively. In the sound wave absorption process of the micro-perforated plate with the resonant sound absorption structure, the distancebetween the micro-perforated plate and the rigid wall can be automatically adjusted and a semi-active resonant sound absorption structure is formed in the cavity between the micro-perforated plate and the rigid wall along with the variation of sound wave frequency and the influence of vibrating air flow. Therefore, the micro-perforated plate with the resonant sound absorption structure has highersound absorption performance in a wider frequency range, the sound absorption frequency band of the micro-perforated plate with the resonant sound absorption structure is greatly expanded, and the defect of a narrower sound absorption frequency band of a sound absorber of the micro-perforated plate with a rigid structure can be overcome. The micro-perforated plate with the resonant sound absorption structure can be widely used for the sound absorber, mufflers and various sound absorption and insulation structures to treat a noise environment caused by air power noise.

The present disclosure relates to a blow-molded, rigid collapsible liner that can be suitable particularly for smaller storage and dispensing systems. The rigid collapsible liner may be a stand-alone liner, e.g., used without an outer container, and may be dispensed from a fixed pressure dispensing can. Folds in the rigid collapsible liner may be substantially eliminated, thereby substantially reducing or eliminating the problems associated with pinholes, weld tears, and overflow. The present disclosure also relates to systems and liners, including the liners just mentioned, that may be used as alternatives to, or replacements for, simple rigid-wall containers, such as those made of glass. Such advantageous systems and liners may replace simple rigid-wall containers in a system for delivering a high purity material to a semiconductor process substantially without modification to an end user's existing pump dispense or pressure dispense systems.

The movement detector having six degrees of freedom comprises a support on which three position sensors are arranged according to three orthogonal axes. Each sensor comprises a rigid body ( 3 ), a deformable element ( 4 ) which is electrically conductive, and four conductive areas ( 6 b) which are disposed on rigid walls ( 3 ). The deformable element ( 4 ) is balanced around the centre part thereof and has a rest position and four active positions wherein it is temporarily in contact with two of the conductive areas ( 6 b) of the rigid body ( 3 ). The deformable element ( 4 ) of a sensor moves from a rest position to one of the active positions in response to a predetermined directional or axial translation or votation.

A mount for a microphone that includes an optional windscreen is disclosed. The mount includes preferably two resilient microphone supports that each comprise a resilient microphone ring attached to a plurality of resilient ring bands. Each ring can accommodate and frictionally retain microphones of various sizes and diameters. Each microphone support is fixed at a lower end thereof to a microphone support base which has least one mounting aperture therein. The mount further includes an elongated generally cylindrical cage that has a front open end, a rear open end, and an acoustically-permeable rigid wall. A bottom surface of the cage includes a resilient base fixture that includes at least one mounting aperture therein. A pair of reticulated foam hemispheric end caps are preferably included that are slidably, frictionally retained within the open ends of the cage. A rigid, preferably metallic or plastic cage mounting bracket is included that has at least one mounting aperture therein and includes a pivot mounting means. A rigid mounting post is pivotally and selectively fixed to the pivot mounting means of the cage. A pair of mounting bolts are included that secure the cage mounting bracket, the resilient base fixture of the cage, and the microphone support base together. The cage preferably further includes an electric microphone connector that is fixed through the rigid wall of the cage, and a windscreen cover that may be selectively mounted around the cage to provide wind noise dampening.

A rigid inverted insert for mounting on the top panel of a rigid cowing of an engine welder, which cowing has a cut away opening in a top panel for allowing access to the top opening of a fuel filler tube extending from a low fuel tank to a position adjacent the rigid cowing. The novel insert has a lower wall generally to the top panel, but substantially below the top panel wherein the lower rigid wall has a central opening surrounding the filler tube to define a peripheral gap around the tube and a soft grommet or seal is mounted in the central opening and fixed to the insert.

An apparatus for manufacturing an elongate composite element in undefined lengths, the composite element containing reinforcement fibers embedded in a matrix based on a composition containing a curable resin, including a vacuum chamber, rigid-walled inlet tubing, an impregnation chamber, rigid-walled transfer tubing between the vacuum chamber and the impregnation chamber, a sizing die and, downstream of the sizing die, irradiation tubes providing radiation in the ultraviolet-visible spectrum to prepolymerize the resin.

The invention is a prefabricated rigid wall panel assembly constructed of a plurality of C-shaped studs inserted into kerfs in a foam block. The closed ends of the C-shaped studs and the foam block form substantially planar longitudinal edges of the panel assembly capable of abutting an adjacent panel assembly. Optionally, a header and / or footer plate inserted is into a transverse kerf such that the plate overlaps the ends of the studs, and the header and / or footer plate and the foam block form a substantially planar transverse edge of the panel assembly. Adjacent panel assemblies are preferably secured to one another using a clip, the shape of which depends on the angle at which the panel assemblies abut. Each panel assembly may also have a wire chase.

An Emergency Isolation and Treatment Shelter (EITS) rigid wall system is modular and includes two support columns and a rigid wall assembly therebetween. Each support column is a tubular generally rectilinear member in cross-section having a center opening and a wall receipt slot on each side thereof. Intermediate each wall receipt slot is an auxiliary area which permits running of conduits for electrical wiring, plumbing conduits as well as junction boxes, switch boxes or the like.

A trash container assembly includes a trash receptacle movable between collapsed and expanded positions; and a seat mount for mounting the receptacle on the back of a seat assembly, usually within a vehicle such as an car. Typically, the receptacle includes an accordion type or other collapsible wall and a pair of rigid walls connected to the collapsible wall. A liquid-impermeable trash bag is disposed within the receptacle. A lid is connected to the receptacle and a compartment for pre-moistened wipes or the like is mounted on the lid. The lid and compartment may be positioned atop the receptacle in the expanded position and beside the compartment in the collapsed position. A sidewall of the receptacle may define a recess for receiving the compartment in the collapsed position. The seat mount may include one or more straps for looping around a headrest and the back of the seat assembly.

The invention relates to a filling device for a reservoir which reservoir is to be filled from a cartridge such as cartridges having rigid walls e.g. made of glass and provided with a membrane which can be penetrated by a needle for protection of the entrance. According to the present invention the filling device comprises—a housing (1) which housing (1) comprises—a first position means adapted to receive a reservoir (2) for a delivering device,—a second position means adapted to receive a cartridge (3) containing a liquid,—a unit (4) providing a flow path when both the reservoir (2) and the cartridge are received respectively by the first and second positions means,—a venting unit (5, 5a, 5b) providing access of gas to the cartridge (3) during emptying of the cartridge (3). The filling device is characterized in that at least a part of the venting unit (5) is placed off the rotational centre (rc) of the housing and is attached to a part (7) which part (7) can rotate relative to the housing (1).

A culm block and a method of manufacture are disclosed. The culm block comprises a plurality of straw stalks forming a first rigid wall and a second rigid wall as a result of an application of heat and pressure to the same and the inherent bonding agent found in the straw stalks. Preferably, the culm block further comprises a plurality of through-holes for receiving structural reinforcements or otherwise and a restraining device wrapped about the block for added structural support.

A field assembleable wildlife observation shelter having an assembled configuration as that of a naturally occurring environmental element is provided. The shelter, which is modular in design, includes a plurality of rigid wall forming panels. Each of the rigid wall forming panels of the plurality of rigid wall forming panels has perimeter edges, and an arcuate cross section. Opposing side perimeter edges of each of the rigid wall forming panels are adapted such that adjacently paired rigid wall forming panels are reversibly securable in furtherance of forming a wall for substantially surrounding a wildlife observer. The plurality of rigid wall forming wall panels are configurable so as to form a transportable stack, more particularly, to define a secured bundle.

The invention relates to an integral rigid runner droplet digital PCR system. The system comprises a power device, a droplet generation device, a rigid thermal circulation runner, a thermal circulation temperature control module, a fluorescent detection controller and a PC control module. A rigid thermal circulation pipeline has high heat conducting performance, and a rigid wall surface has low roughness and small relative deformation. The integral rigid runner droplet digital PCR system can be used for online detecting a droplet in real time by adopting the droplet generation device with a high loading capacity and a terminal fluorescent detection system, and has the characteristics of flexible temperature control, safety, no need of a special PCR reaction chip, high fluorescent detection flux, high sensitivity and the like; and the system can avoid the problems of measurement accuracy reduction and the like caused by droplet breakage and mutual fusion among droplets since the traditional droplet digital PCR equipment needs to manually transfer droplets in different reaction modules. The whole system forms a highly-integrated design by droplet generation, PCR reaction thermal circulation and terminal droplet fluorescent real-time online detection.

A keg enveloping a container (8) for containing a beverage and means for deforming the container (8) in order to drive the beverage out of the keg (1). The container (8) comprises two substantial rigid walls (13,14), which walls are mutually connected by a flexible wall (15). The flexible wall (15) is shaped as a bellows. Said means can move the two rigid walls (13,14) towards each other, so that the distance between the two rigid walls (13,14) varies. The material of the container (8) comprises preferably a metal layer or is made of metal.

The invention concerns a Moineau type gear pump stator (1), comprising a stator cavity with global axial extension inside an elongated body, characterised in that the stator cavity is defined by a rigid-walled metal tubular element (3) having internall the shape and dimensions of the stator cavity such that, when it is assembled with a rotor, a positive clearance with the rotor is obtained.