Relatively rotatable annular bearing members, disposed at a rotary joint of a pressurizable garment, define facing surfaces against which bear compliantly the land surfaces of resilient lips of a plastic fluid seal element. Preferably, the lips of the element extend from the edge of, and form a part of, a cage for the rolling elements of the bearing.

A sealed headphone having an improved sound pressure versus frequency response characteristic is disclosed. The sealed headphone comprises a mounting plate having coupling apertures, an electro-acoustic transducer attached to one side of the mounting plate and a casing covering the transducer. A space defined by the rear side of the transducer and the casing communicates via the coupling apertures with another spaced formed on the opposite side of the mounting plate so as to form an acousto-mech...

A hermetically sealed case, has a space between a top case and a bottom case which can be completely sealed by means of a waterproof packing, and in which an area around a connecting cable is completely sealed. A first case having an annular projection formed at the periphery thereof is assembled to a second case having an annular groove having a shape corresponding to that of the projection of the first case formed at the periphery of the second case. An elastic member is provided between the p...

A sealed case comprises a communication hole in an outer wall of the case for communicating the inside and outside of the case, and the communication hole is closed by a seal element comprising a highly restorable elastic element having airtightness.

A duct for transporting air within an air handling system. The inventive device includes a plurality of panels coupled together to form a hollow duct. The panels are sealed along interior surfaces thereof by coextensive foil webs. The panels can be formed from a single blank and subsequently folded into an operative orientation for use in a heating and air conditioning installation.

A sealed RJ-11 connector includes plug and connector entrances each comprises a material insert molded to both sides of a plate. At least one such material is sufficiently flexible to expand or contract responsive to air pressure, and a gel may be used to seal at least one of the entrances.

This invention provides a simply constructed sealed button (1) having an elastic spring (2) defining a pair of end portions (4) with respective hook members (6, 7) formed on the opposing end portions (4). A main body housing (5) defining an internal chamber includes a T-shaped conduit mounted within the housing chamber for insert of the hook members (6, 7). The hook members (6, 7) are hooked to each other at an intersecting portion of intersecting through passages of the T-shaped closed conduit....

This invention relates to sleeves for sealed bearings for rotating shafts employing packing glands mounted in the floating sleeve whereby the integrity of the seal is maintained during transverse displacement of the shaft.

A closure is provided for a container and includes a base and a lid. The base includes a body for mounting to the container, and the body defines a dispensing orifice. A tamper-evident seal extends across the dispensing orifice. The lid includes a peripheral frame, a flexible panel, and a penetrator member extending from the panel for penetrating the seal.

A hard sealed CO.sub.2 laser tube includes an impermeable envelope with flanges and seals joined by weldment and ultrahigh vacuum. A total reflecting mirror at the input is hard sealed and cooled at its back side. The plasma tube and cooling jacket are made of glass or ceramic construction. Metal-glass or glass-ceramic high voltage feedthroughs provide for connection to the internal electrodes. Feedthroughs using glass-metal sealing connect to the internal cooling jackets. The feedthroughs for e...