47results about How to "Robust seal" patented technology

A method for making a peritoneal dialysis therapy machine having a tubing set includes: packaging an end of each of a plurality of the tubes of the set in a body; arranging the tubes according to a sequence of steps of a dialysis treatment set-up so that a user is urged to remove the tubes from the single body in a desired order; and configuring the body to plug connectors attached to each of the ends of the tubes.

A capless fuel filling system for a vehicle including a closure assembly that forms an iris arrangement that is rotatable to form a seal for a fuel filling tube or provide access to the fuel filling tube.

A sealing device and method for sealing a length of tubing with a fitting is provided, where the sealing device includes at least one sealing surface formed with a plurality of ridges. The ridges include at least one end ridge and at least one internal ridge which are spaced apart by a predetermined distance, and formed with a desired geometry such as U-shaped, V-shaped, or various other shapes and with different sealing faces such as curved or flat. The ridges are spaced apart in a manner to maximize sealing pressure, and produce stress concentrations and localized deformations, in order to create a seal at lower torques or on stiffer tubing or tubing with at least one minor defect such as a dent or weld. The sealing device is particularly useful for sealing an end corrugation of tubing in a fitting used in gas and liquid piping systems.

A scroll compressor that utilizes liquid or vapor injection to cool a working fluid being compressed by an orbiting scroll member and a non-orbiting scroll member, and / or to increase the efficiency of the compressor. An injection fitting is secured to, and extends through, the compressor housing and receives liquid or vapor working fluid from a source external to the compressor. The non-orbiting scroll member may be fixedly mounted with respect to the crankcase of the compressor, and internal passages formed within the crankcase and the non-orbiting scroll member, which are substantially isolated from the suction pressure and discharge pressure chambers of the compressor, are used to convey liquid or vapor working fluid from the injection fitting into intermediate pressure working pockets defined between the scroll members. The compressor may include an end cap fitted over an open end of its housing which overlaps an end of the passage provided in the non-orbiting scroll member to provide a robust sealing of the passage.

A method for making a peritoneal dialysis therapy machine having a tubing set includes: packaging an end of each of a plurality of the tubes of the set in a body; arranging the tubes according to a sequence of steps of a dialysis treatment set-up so that a user is urged to remove the tubes from the single body in a desired order; and configuring the body to plug connectors attached to each of the ends of the tubes.

A cartridge container unit having a compartment for storing a material. The compartment is adapted for separately storing one component of a formulation until ready for mixing with a second component in an assembly unit prior to use. Thus, the cartridge unit allows the user to store a material until ready for use, or to store multiple components of a formulation in separate individually sealed containers until ready for use that can be readily assembled into a single multi-compartment container. The cartridge unit includes a substantially cylindrical housing having a sealable opening at its top end and an opening at its bottom end. The bottom end may be adapted and configured to engage and seal the assembly unit. A first inwardly extending annular shoulder is provided between the sealable opening and the bottom opening, defining a flow passage along a longitudinal axis of the housing.

A combination heat exchanger comprising of a heat exchange core having a plurality tubes, wherein the core having at least one core end; an end tank having two side walls and two end walls, two bulkheads the cavity defining a least a first chamber, a second chamber, and a third chamber, a perimeter edge defined by exterior edges of said side walls, exterior edges of said two end walls, and exterior edges of said two bulkheads; a header plate engaged between said end tank and said core end; and a gasket between said perimeter edge and contact surface of said header plate, wherein the compression ratio of the gasket is varied along the contact surfaces of the perimeter edge and contact surface of the end plate.

Provided are encapsulated belts and encapsulated pads for use in a variety of polishing application, including the chemical-mechanical polishing and planarization of semiconductor wafers and other workpieces. The encapsulated belts and pads are characterized by a robust seal between a polishing layer of the pad or belt and the edges of the subpad layer of the pad or belt. The robust seal is accomplished by casting a polymer directly over the subpad layer. The edges of the subpad layer may include one or more functional features that promote the formation of a watertight and slurry-resistant seal when the subpad layer is covered with a cast polymer. Also provided is a method of producing a robust seal between the polishing layer and the edge region of the subpad by encapsulating a subpad layer with a polymeric material.

A valve stem seal utilizes a multi-piece construction to reduce the required manufactured tolerances and / or improve the stress handling capabilities. The valve stem seal can include a first member or can which can be assembled to a second member or spring seat. The can and / or spring seat can have a plurality of axially extending resilient fingers that are biased such that when assembled the fingers are bent against the bias due to the engagement between the can and the spring seat. The fingers on the spring seat allow the spring seat to bend or move relative to the can to accommodate the loading of a valve spring on the spring seat. The use of resilient fingers on the can and / or the spring seat reduces the manufacturing tolerances required for the valve stem seal.

A coupling for attaching to an end of a tube, pipe, conduit or other round solid or hollow section. The coupling includes an inner body and a collar to be provided around the inner body. The inner body has an interior bore passing through at least a portion thereof to receive a tube and the bore has one or more interior annular protuberances extending into the bore. When the collar is provided around the inner body it applies a circumferential compressive force to deform the inner body such that the one or more annular protuberances engage the tube or the like to seal with it.

Disclosed is a pressure-measuring plug for a combustion engine. The pressure-measuring plug comprises a plug body and a ring-shaped sensing structure. The plug body comprises an external thread for mounting the plug body into a cylinder head of the combustion engine. The ring-shaped sensing structure comprises an outer section and an inner core. A proximal end of the plug body is attached to the outer section. The inner core comprises a through hole for receiving a rod-shaped element. The ring-shaped sensing structure allows the inner core to move relatively to the outer section along a cylinder axis of the ring-shaped sensing structure. The inner core further comprises an internal thread for mounting in the through hole a rod-shaped element with an external thread.

A surface treating head comprising a first body defining an inner aperture, and a support body defining an outer aperture, the outer aperture surrounding the inner aperture, and the support body being moveable relative to the first body to allow for relative movement between the inner and outer apertures in a substantially vertical direction, wherein the surface treating head further comprises a bellow seal provided between the first body and the support body that maintains a substantially airtight seal between the first body and support body irrespective of their relative positions and movements.

A surface treating head comprising a first body defining an inner aperture, and a support body defining an outer aperture, the outer aperture surrounding the inner aperture, and the support body being moveable relative to the first body to allow for relative movement between the inner and outer apertures in a substantially vertical direction, wherein the surface treating head further comprises a bellow seal provided between the first body and the support body that maintains a substantially airtight seal between the first body and support body irrespective of their relative positions and movements.