Bellows

About: Bellows is a research topic. Over the lifetime, 15312 publications have been published within this topic receiving 73914 citations.

Bellows driver slot valve

Abstract: A slot valve assembly (10) including a housing (11) having a central opening (19), a valve plate (32), a strongback (20) for carrying the valve plate, a pair of actuators (34, 36) for raising and lowering the strongback to position the valve plate over opening (19), and a second set of actuators (240) for moving valve plate (32) into seating engagement with housing (11). Second actuators (240) are in fluid communication with the working chambers (48, 50) of the first pair of actuators (34, 36). First actuators (34, 36) are located within housing (11) to give the housing a much shorter height.

Fine pattern transfer apparatus

Abstract: PURPOSE:To improve resolution by making use of a refraction index of liquid, on the occasion of transferring fine pattern using the light, by filling an optical path between the final lens and specimen with a liquid and reducing defocusing of light by refraction. CONSTITUTION:A bellows 3 is attached to the outside of optical barrel 1, shielding the light progressing space from outside. The interior 11 of bellows 3 is filled with a liquid having a high refraction index and the liquid is sealed by an O ring 4 not to release to the outside. Here, a lens 2 is designed so as to match the refraction index to the specimen 6 with the refraction index of liquid. When refraction index of liquid is considered as n, wavelength becomes 1/n and n times of resolution can be obtained. Here, the specimen is fixed flat by a chuck plate 7 and the O ring is clamped by a tightening jig 5. The specimen can also be moved in the x and y directions by a stage 8. Upon completion of transfer, a purge apparatus 10 operates, exhausting the liquid, and thereby a wafer may be exchanged.

Flexible waveguide tube having a dielectric body thereon

Abstract: A flexible waveguide tube is applicable for a desired millimeter wave band with maintaining sufficient strength for satellite application. The flexible waveguide tube includes a bellows portion and flexing at the bellows portion. The flexible waveguide tube further comprises a dielectric body disposed within the waveguide tube, the dielectric body being placed in spaced apart relationship with at least one inner peripheral surface of the bellows portion.

Coaxial electrical connector

Abstract: An electrical connector including a socket having an axis, a metal bellows connecting the socket to a support for adjustment of the axis in response to insertion within the socket of an axially misaligned plug or connector, the metal bellows further being an electromagnetic radiation shield between the plug or connector and the support.

Piezo electrically driven bellows infuser for hydraulically controlling an adjustable gastric band

Abstract: A remotely controlled gastric band system that is practically immune to external magnetic fields, such as from a Magnetic Resonance Imaging (MRI) machine, incorporates a bi-directional pump and fluid reservoir to adjust fluid volume in a gastric band. A piezoelectrically driven (e.g., rotary actuator, linear actuator) selectively compresses and expands a metal bellows hermetically sealed within a biocompatible and nonferromagnetic case such as titanium.