摘要:
In accordance with the present invention, there are provided novel assemblies which are useful for a variety of applications. Invention assemblies have low dielectric constant, making them suitable for use in a variety of electronic applications. In addition, invention assemblies are resistant to attack by acidic aqueous media, basic aqueous media and/or organic media, making it possible to subject such assemblies to a variety of processing conditions, such as, for example, chemical etching to introduce circuitry thereto.
摘要:
In accordance with the present invention compositions are described which are useful, for example, for the preparation of metal-clad laminate structures, methods for the preparation thereof, and various uses therefor. Invention metal-clad laminate structures are useful, for example, multi-layer board (MLB) industry, in the preparation of burn-in test boards and high reliability boards, applications where low coefficient of thermal expansion (CTE) is beneficial, in the preparation of boards used in down-hole drilling, and the like.
摘要:
A filter, in particular, a fluid filter of the "spin-on" type, comprising a head with an inlet space and an outlet space and with a coaxially extending connecting spigot, a housing with one open end, said housing containing an annular-cylindrical filter element and having a terminal edge that confines said open end and sealingly engages a groove provided in the body of said head and positioned coaxially around said connecting spigot, as well as an annular disc-shaped intermediate piece screwed onto said connecting spigot and supporting said filter element. An edge portion of said intermediate piece extending beyond said filter element is screwed into said housing and is provided with passage openings. Head, intermediate piece and filter housing are sealingly assembled with one single ring.
摘要:
In accordance with the present invention, compositions are described which are useful, for example, for the preparation of metal-clad laminate structures, methods for the preparation thereof, and various uses therefor. Invention metal-clad laminate structures are useful, for example, multi-layer board (MLB) industry, in the preparation of burn-in test boards and high reliability boards, applications where low coefficient of thermal expansion (CTE) is beneficial, in the preparation of boards used in down-hole drilling, and the like.
摘要:
The invention relates to a filter element (1) for a fluid filter, comprising a web of pleated filtering material that is formed into a circumferentially closed cylindrical filter body, which is coaxially supported by a perforate rigid tube (4) and the axial ends of which are sealingly inserted into corresponding annular receiving cavities provided in a rigid bottom end cap (3) at one end and in a rigid annular end cap (2) at the opposite end of the filter body. According to the invention the cylindrical filter body has its terminal edges (5) embedded in separate sealing rings (6) of a flexible type of rubber or similar elastomeric material and that said filter body is sealingly clamped with said sealing rings, and together with the said spporting tube, removably between the rigid bottom end cap and annular end cap respectively.
摘要:
The invention relates to a liquid filtration device, comprising a substantially cylindrical housing one end of which is closed and the other end of which is connected to a head provided with an inlet and an outlet, a filtration element being provided within said housing. According to the invention the housing is formed by a tube section of the desired diameter and cut at the desired length, said tube section being closed, at its end turned away from the head of the filtration device, by a bottom piece inserted therein with a sliding fit, the outer circumferential face of said bottom piece being sealed from the corresponding part of the inner circumferential wall of the tube section by means of at least one O-ring engaged in a corresponding groove, while the bottom piece end turned away from the head of the filtration device is bearing on a snap ring provided within an inner circumferential groove of the tube section.
摘要:
The invention relates to a liquid filtration device, comprising a substantially cylindrical housing one end of which is closed and the other end of which is connected to a head provided with an inlet and an outlet, a filtration element being provided within said housing. According to the invention the housing is formed by a tube section of the desired diameter and cut at the desired length, said tube section being closed, at its end turned away from the head of the filtration device, by a bottom piece inserted therein with a sliding fit, the outer circumferential face of said bottom piece being sealed from the corresponding part of the inner circumferential wall of the tube section by means of at least one O-ring engaged in a corresponding groove, while the bottom piece end turned away from the head of the filtration device is bearing on a snap ring provided within an inner circumferential groove of the tube section.
摘要:
Return filter mountable in a reservoir wall and comprising a substantially cylindrical housing mountable with an open end over an opening in the wall and provided with a connection for a return conduit, which housing carries on its end lying opposite the open end a screw cover. It also carries a substantially cylindrical filter element holder which is provided on a top edge with an outward protruding flange and which lies with the flange against a shoulder in the housing close to the open end thereof, such that the filter element holder can protrude through the opening in the reservoir wall, wherein the screw cover carries a pressing element protruding into the interior of the housing to the open end thereof, gripping onto the filter element holder and pressing this with its flange sealed against the shoulder.
摘要:
Embodiments of this invention relate generally to high temperature thermal energy storage, and more specifically, to the use of the latent heat of fusion of melting and solidifying metals to receive from and provide heat to a gaseous medium. Embodiments of this invention are also known as the Liquid Metal Thermal Storage system or LIMETS. Also described are methods of containing the storage material, heat transfer means, and choices of metals and alloys for thermal storage materials.