Patent
Resin-made spring and a bellows type constant volume pump using the same
TLDR
In this paper, a PTFE-made spring was used as a spring for a check valve on the side of a tip end portion of a dischargehole 11 of the bellows type constant volume pump.Abstract:
The present invention relates to a resin-made spring
which, although the spring is made of a resin only, has a
strength similar to that of a metal-made spring, and in which
the strength is hardly reduced with time and can be maintained
to a desired degree for a long term, and also to a bellows
type constant volume pump which uses such a resin-made spring.
The resin-made spring of the invention has a configuration in
which a strip-like PTFE-made sheet 21 is bent in a zigzag
manner in a longitudinal direction of the sheet with providing
a predetermined swelling curvature R, side faces of bent
portions 21a of the predetermined curvature are in close
proximity to or in contact with each other, and the bent
portions 21a of the predetermined curvature are elastically
expandable and contractible by means of heat holding and
cooling. Such a PTFE-made spring 20 is used as a spring for
a check valve on the side of a tip end portion of a discharge
hole 11 of the bellows type constant volume pump.read more
Citations
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Patent
Pump with positive displacement
TL;DR: In this article, a deformed deformed pumping bellows with positive displacement for pumping and driving a liquid in a space system is presented. Butt et al. proposed a pump with a deformable deformed bellows and vortex fluid diodes for controlling the global direction of the pumping and flow of the liquid in the piping system.
Patent
Pliant or compliant elements for harnessing the forces of moving fluid to transport fluid or generate electricity
TL;DR: In this article, the authors describe compliant mechanisms for extracting electrical energy or useful work from a moving fluid by maintaining persistent deformations in flexible elements with deformation retaining, or restraining components, such as rigid or tensile members, elastic coils, and/or the like.
Patent
Damper and Damping Structure for a Wave Energy Conversion Device and Mooring Component
Paul Mcevoy,Robert Healy +1 more
TL;DR: In this article, a damper for damping the reactionary motion of a wave energy conversion device to wave motion, comprising a damping energy absorber (7) having a reversible non-linear stress-strain response, arranged to damp the reactive motion of the WEC, is presented.
Patent
Fluid apparatus such as a pump or an accumulator
Kiyoshi Nishio,Hitoshi Kawamura +1 more
TL;DR: In this paper, the authors present a fluid apparatus in which two or more kinds of chemical liquids can be rapidly stirred and mixed in a pump to a uniform concentration, where a barrier membrane such as a bellows or a diaphragm is used to form a liquid chamber between the barrier membrane and an inner wall of the pump body.
Patent
Leaf spring design for centrifugal clutch
Kenneth Bechtold,Brian Speldrich +1 more
TL;DR: In this article, a leaf spring was implemented for use in a clutch mechanism, wherein the leaf spring is configured to avoid coil clash and end wire lengths of the leaf-spring are positioned in order to center the spring without additional features.
References
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Patent
Pneumatic pumping device
TL;DR: A pneumatic pumping device incorporating a movable valve such as a bellows, or a diaphragm, driven by air back pressure in a cylinder so that a liquid is drawn in and discharged by reciprocating movement of the movability valve, and in which surfaces contacting the initial and external parts of the pumping device are formed of either a single substance or a compound of a fluororesin such as PTFE, PFA, CTFE as mentioned in this paper.
Patent
Spring for IC-engine flywheel damper - has several spring windings cross laid with lever sections connected to ends
TL;DR: A folded flat spring has several flat spring wound sections which are symmetrically cross-laid and open facing each other, and the winding ends are not directly in opposing positions with each other.
Patent
Bellows type pump
TL;DR: In this paper, a pump chamber for compressing a liquid such as engine fuel is formed inside a bellows, and the liquid is aspirated into the pump chamber from a suction check valve when the bellows elongates.
Patent
Damper mechanism with undulated ribbon-like spring having means for restricting radial movement of the spring
TL;DR: In this article, a flywheel assembly is composed of a first flywheel 1, a second flywheel 3 and ribbon-like springs 18, which are disposed within the fluid chamber 17.
Patent
Securing a sulcated spring to a suspension component
TL;DR: In this paper, a sulcated spring (12), consisting of a strip bent into a zig-zag, is secured at one end limb (34) to a suspension component by gripping the end limb between a flat support surface (22) and an opposed, parallel anchoring surface (46).