A sealing assembly for a sensor port of a double-walled muffler. The assembly includes at least an outer plate and a washer-type element. The washer-type element has a planar portion provided with an aperture, and a tube portion protrudes from an edge of the aperture. The assembly is mounted on a sensor port provided with a boss fixed to an inner wall of the double muffler wall, and with an opening in an outer wall surrounding the boss. The tube portion is fitted over the boss, and the assembly is fixed to the outer wall. Any radial or lateral movement of the boss relative to the outer wall is able to take place without losing sealing function, due to lateral freedom of movement of the washer-type element relative to the outer plate, and due to the fact that the boss is able to move relative to the tube portion.

An aircraft door sealing system comprises a resilient sealing element secured to an aircraft door arrangement first element and comprising a sealing lip extending from a sealing member. A rigid counter-bearing element is secured to an aircraft door arrangement second element and cooperates with the sealing element to seal a gap between the first and second elements. The counter-bearing element comprises a first portion cooperating with the sealing member and a second portion cooperating with the sealing lip. The sealing lip and the second portion are positioned relative to each other, and the sealing lip can be resiliently deformed, so that the sealing lip is applied to the second portion and a contact face between the sealing lip and the second portion is formed or increases, when an external pressure acting on an outer face of the sealing lip via the gap, exceeds a threshold value.

The present technology generally relates to devices, systems and methods for providing robust sealing between surfaces in a pressurized system, such as a chromatography system. In particular, the devices, systems and methods relate to compliant and resilient parts that can be reused and/or reinstalled while providing a pressure tight sealing surface even within a high pressure environment (e.g., 1000 psi or greater).

Embodiments of a high-pressure, high power, reciprocating positive displacement fluid pumping system and methods are included. The system may include a high-pressure, high power, reciprocating positive displacement pump including a pump plunger, a fluid end block assembly, and a fluid cover. The fluid end block assembly may include a fluid end block body, a suction port, a discharge port, a pump bore positioned in and extending through the fluid end block body, and a fluid chamber positioned in the fluid end block body and in fluid communication with each of the suction port, the discharge port, and the pump bore. The fluid chamber has an open end portion, and the pump plunger may be positioned to move in the pump bore to pressurize one or more fluids in the fluid chamber. The fluid cover includes a monolithic body having a first portion and a second portion, the first portion being received in the open end portion and sealably engaged with the fluid end block body, the second portion being mechanically connected to the fluid end block body.

Pipeline isolation tool for sealing extrusion gaps of up to about 20% or greater includes a pair of fenced barriers (60, 160) having overlapping segments (68/70, 168/170) for restraining a seal (40). The segments expand to a pipe wall before the seal to prevent transition of seal medium over the segments and form a support wall for the seal. The support wall may include a protection ring (200). Springs (80, 180) surround each fenced barrier for returning the support system to a relaxed position. Inner rings (90. 190) are provided on sealing element facing surfaces (64, 164) of the fenced barrier for supporting the segments. The inner rings define a smooth inner guiding surface (92, 192) for the seal. The guiding surface is tilted inwardly towards the seal for resisting the sealing element during expansion and for preventing an inside diameter of the seal from expanding outwardly when compressed.

A seal device for sealing slide-out room opening in recreational vehicles. The seal including a base; a bulb; an alignment aid member; and a positional member. The base having a proximal end, a distal end, an inside portion, an outside portion, and a perpendicular member. The bulb having an arcuate portion, a sidewall portion and a curled end portion. The positional member extending perpendicularly to the base distal end in opposite direction of the alignment aid member. The seal device may further include a flap extending co-linearly from the base distal end and a fastening system.

A sealing apparatus includes a moveable seal holder with a cavity and includes a seal assembly disposed at least partially in the cavity. The seal assembly includes a resilient seal member including a fluid-facing end with a fluid-facing end surface, and the seal assembly includes an actuator plate configured to reciprocate between a first and a second position relative to the protective plate. The first actuator plate includes a fluid-facing end surface and a first camming surface. The seal assembly further includes a first protective plate disposed between the seal member and the first actuator plate. The actuator plate is configured to compress the seal member and to move the fluid-facing end surface of the seal member outward from a resting position when the actuator plate is in the second position.

The seal spring of the present invention has a dual functionality. The seal spring provides both a sealing property and spring function in use within an electrical connector system, which is accomplished by its elastomeric qualities. The seal spring is preferably comprised of Silicone, EPDM rubber or materials and compositions that provide similar performance during use, or the like. The seal spring of the present invention is not limited or defined into a spring section or a seal section by its geometry. Shown is an implementation of the seal spring within an outer housing and connector assembly. The seal spring compresses and provides adequate spring force against a tab or tabs within the outer housing. The seal spring also functions as an interface seal and an environmental seal during use. The seal spring is, substantially, in its entirety, of a contiguous and continuous single construction. No part or section of the seal spring is made up of welded, soldered, or brazen part or section.

The present disclosure provides a sealing apparatus for use in a hypertube, which includes a first tube, a second tube having one end connected to an end of the first tube, and a gasket including a seal made of a fiber structure formed with a space that is filled with a sealing fluid, wherein the gasket is configured to seal a space between the first tube and the second tube.

The pipe ball joint includes a casing having a socket portion with a substantially spherical interior surface and a first pipe segment extending from the socket portion. The socket portion has an annular groove disposed adjacent the partially spherical interior surface. A ball pipe section includes a ball segment received in the socket portion of the casing and a second pipe segment extending from the ball segment. A seal assembly is received in the annular groove of the casing and is disposed against the ball segment of the ball pipe section. The seal assembly includes a plurality of nested seal rings that each include a concave face and a convex face.