66results about How to "Improves seal integrity" patented technology

Access devices and related methods are disclosed that generally involve flexible or adjustable cannulas that have a substantially cylindrical insertion configuration and a substantially conical expanded configuration. Various methods and features are provided for transitioning the cannula from the insertion configuration to the expanded configuration while the access device is inserted through tissue to form a conical opening through the tissue. Examples include cables, biasing elements, retaining elements, bimodal rings, and coil springs. The devices and methods disclosed herein can allow for improved retention of the access device, improved angulation of instruments passed through the access device, and can increase the integrity of a seal formed between the access device and surrounding tissue.

An evacuable bag or container for items which benefit from being stored in a vacuum environment by reason that the bag or container is impermeable to air or liquid, with a first opening for entrance or closure purposes, which first opening has a zipper sealing closure adjacent thereto and integral with said bag or container for closing and opening purposes, the sealing integrity of which is aided by atmospheric and / or differential pressures, and a second opening, with an exit-only valve therein, for connection purposes to an external vacuum source, by which means said bag or container can be evacuated of air or liquid. Thus, this invention provides the constituent key to a relatively inexpensive appliance system for home vacuum packaging of perishables and / or items requiring compression packaging due to limited storage space.

An enclosure for electronic circuitry is provided which has a first housing member having at least one protrusion formed in a wall and a second housing member having at least one slot for receiving the at least one protrusion and securing the second housing member to the first housing member. The second housing member and the first housing member have one or more continuous electrical ground contact surfaces. The second housing member is secured to the first housing member so that there is an interference fit between the at least one protrusion and at least one slot and so that there are one or more continuous electrical ground contact surfaces between the first housing member and the second housing member. A method of assembling an enclosure for electronic circuitry is provided.

An injection port assembly including a body having first and second mating structures configured to mate with a first connector for a first fluid pathway and a second connector on a device, respectively. A resilient barrier substantially contained within the body and compressible from a first position in which fluid flow between the first and second connectors is blocked to a more compressed second position in which fluid flow between the first and second connectors is permitted. A hollow cannula can be coupled with the first mating structure and disposed within the resilient barrier, the hollow cannula having a distal end configured to extend through the resilient barrier when the resilient barrier is in the second position, the distal end having lateral slots. The resilient barrier can have first and second annular sealing rings positioned above and below the lateral slots respectively.

Access devices and related methods are disclosed that generally involve flexible or adjustable cannulas that have a substantially cylindrical insertion configuration and a substantially conical expanded configuration. Various methods and features are provided for transitioning the cannula from the insertion configuration to the expanded configuration while the access device is inserted through tissue to form a conical opening through the tissue. Examples include cables, biasing elements, retaining elements, bimodal rings, and coil springs. The devices and methods disclosed herein can allow for improved retention of the access device, improved angulation of instruments passed through the access device, and can increase the integrity of a seal formed between the access device and surrounding tissue.

According to the invention, a patch is provided to be attached to the outside of the wall of the bag over the profile strip fastener assembly that is attached to the front panel of the package. The patch is made from a gas barrier type of substrate as to prevent oxygen and other gases from entering or leaving the perforations within the opening feature used to access the fastener assembly. The side of the patch that is in contact with the front panel of the bag includes an adhesive for securement to the package. A variety of adhesives can be utilized for securement depending on the arrangement of the perforations. Printing can be included on the outside of the patch to highlight the reclosable feature of the package thereby eliminating the need to modify the original printing on the package.

A method for sealing an annular space between a bore hole and a casing includes the steps of: providing a fluid sealing system comprising a particulate material and a bonding agent; positioning the fluid sealing system in the annular space whereby the particulate material adheres to walls of the bore hole and the casing; and curing the fluid sealing system so as to form a solid seal in the annular space.

A fenestrated extremity surgical drape has improved seal integrity to reduce the occurrence of pathogenic contamination at the surgical site via migration through the seal. The seal has a non-linear configuration to eliminate uneven stress concentrations commonly located at the corners of rectilinear seals. An elastomeric apertured panel can be disposed between a film panel and a fiber / film laminate panel. These layers can be joined by a heat sealing operation along two spaced apart concentric seal locations ringing the aperture and a fenestration in the laminate panel. The assembly can then be affixed by adhering the underside(s) of one or more panels to a base drape, which has an opening aligned with the aperture and fenestration. A method of forming a fenestrated extremity surgical drape is also disclosed.

A logging plug is disclosed having an internal sealing mechanism therein which provides a high degree of sealing integrity between the bore of the plug and a coiled tubing or other means of suspending wellbore equipment running therethrough. The sealing mechanism utilizes a combination of low friction, elastomerically-energized cap seals and ring seals to ensure that the sealing surfaces adapt continuously to the changing profile of the coiled tubing to provide a true dynamic seal around the coiled tubing.

Methods of bonding glass and silicon-containing articles are disclosed. Bonding is achieved without use of adhesives or high temperature fusion. A wide variety of glass and silicon-containing articles may be bonded by the methods of the invention.

Plastic containers subjected to pasteurization processes with a closure having an annular finish support ring that supports an inner surface of the neck finish of the container from inward deformation during pasteurization. The finish support ring can be integral with the closure or can extend from a closure liner. Also disclosed are closures for products that require pasteurization, as well as modified finish threads to provide a surface contact between the finish and closure threads.

Method of injection moulding a plastics component includes providing a first mould member with a mould cavity, defined by an internal surface, and a second mould member with an external surface complementary to the mould cavity shape. Either the internal or external surface carry an elongate formation with an elongate apex. Then, the second mould member is advanced into the mould cavity such that the apex is spaced from the opposed one of the internal surface and the external surface by a predetermined distance and the internal surface of the first mould member and the external surface of the second mould member together define a mould space. Molten polyolefin material is then injected into the mould space to substantially fill it. The predetermined distance is so dimensioned that the polyolefin material does not completely fill the space between the apex and the opposed surface and the slit is thus formed.

A frame for a vehicle sliding sunroof or tilt-slide sunroof is proposed, comprising at least one single-piece frame base element (22), that is embodied as a plastic injection-molded piece and comprises at least one front frame piece (24) and two side stringers (26, 28) that are directed in the vehicle's longitudinal direction. For formation of a light and stiff frame, the frame base element (22) according to the invention is embodied as a composite component, and provided with at least one profile- or cup-shaped inserted piece (38, 40) that serves as a reinforcing element.

A spherical rod end assembly includes a seal component in the form of a fastener or a washer, or a combination thereof. The seal component has a flexible, resilient skirt, affixed to a metal body, which skirt overlies and seals the cavity within which the ball of the assembly is seated, to exclude dirt and other foreign matter, and to enhance lubrication. The seal component further includes a circumferential living hinge formed therein to improve seal integrity and increase angularity of the skirt.

A multi-layer metal gasket includes at least on active layer and at least one shim layer having aligned combustion holes. The shim layer has annular portions surrounding the combustion holes and tab portions projecting radially outwardly from the annular portions surrounding the combustion holes. The annular portions underlie associated sealing beads of the active layer. The tab portions each have a radially extending neck region and a set of lateral bend tabs supported at the end of the neck region and projecting laterally outwardly thereof. The bend tabs project through an associated set of laterally spaced mounting windows formed in the active layer and are bent back toward one another to secure the shim layer to the active layer.

A process for manufacturing a compressed gas tank that includes a combination of an injection molding process and a rotomolding process. In a first step, a boss to be positioned in the opening of an outer structural layer of the tank is provided and a thin portion of the liner is injection molded to the boss so that a channel within the boss is filled with the liner material to increase the seal integrity between the boss and the liner. Once the liner material is hardened, the surface of the injection molding liner portion is cleaned. Next, a rotomolding process is performed to mold the remaining portion of the liner to the boss. During the rotomolding process, the injection molded portion of the liner melts to be part of the liner made during the rotomolding process.

A valve is provided. The valve includes a body provided with fluid passages for circulating fluid therein. The body has a body interface with ports connected to the fluid passages. The valve also includes a valve element having a valve element interface facing the body interface. The valve element can move between different positions so as to permit or obstruct communication between the fluid passages. A biasing element biases the valve element interface against the body interface. A load varying mechanism is provided to load the biasing element with different sealing load forces according to the different positions of the valve element. The sealing load force applied on the rotor is thus decreased during rotation, reducing friction between the valve body and the valve element.

A vehicle includes a coupling for mounting an implement and a load-controlled hydraulic pump that runs continuously with an engine of the vehicle. The pump draws hydraulic fluid from a low-pressure line region and feeds the hydraulic fluid into a high-pressure line region. The high-pressure line region has a high-pressure connection and the low-pressure line region has a low-pressure connection for supplying the mounted implement. A shutoff valve for blocking the flow of hydraulic fluid to the high-pressure connection is connected upstream of the high-pressure connection in the high-pressure line region.

A seal assembly is provided to seal a pressure vessel and an adjacent enclosure. A metal support ring configured to contact a first sealing surface and a second sealing surface when installed in a pressure vessel, is provided with a low friction coating with transferable low friction additives which results in the transfer of a solid lubricant film onto the vessel wall enclosure. Two polymer seals are provided adjacent the metal support ring and the pressure vessel and enclosure respectively, the polymer seals having a configuration and being formed of a high resilience material, to increase the longevity of the seal assembly.

The invention discloses an analysis and evaluation method for hermetic seal thread of a tubing of a high-temperature high-pressure gas well. The hermetic seal applicability of a limit tolerance samplein the condition load and stress correction environment under different make-up torques is tested and evaluated by analyzing the make-up torque of the hermetic seal thread according to down-hole workenvironment characteristics of the high-temperature high-pressure gas well and structural characteristics of the thread; according to analysis on the make-up torque of the hermetic seal thread, the limit tolerance and torque are selected to analyze hermetic seal finite elements under the condition load spectrum, and the down-hole condition load spectrum sealing after make-up of the hermetic sealthread is analyzed; and thread dynamic-load anti-fatigue analysis in the gas production process of a down-hole tubing string is analyzed, an applicability test and evaluation process is determined according to links likely to fail in analysis, and the applicable reliability of the thread is evaluated and analyzed comprehensively. The method can be widely applied to high-temperature high-pressure gas wells as well as unconventional multi-segment high cracking gas wells, especially to evaluate selection and applicability of threads of well-completion tubing strings of deep and ultradeep wells inTarim and southwest oil and gas fields.