Inverted nozzle fixture and method
AssigneeInvox Belgium NV
InventorsFrank Bartels, Juergen Rawert
Life of this patent
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Abstract
The invention provides for device for clamping a fluidic component which is subjected to a fluctuating fluid pressure, said fluidic component having a downstream end, an opposite upstream end and an outer contour, said device comprising a holder, an elastomeric shaped part and a mating part, wherein the elastomeric shaped part comprises at least one compensating surface, and wherein the at least one compensating surface in the assembled state does not contact the mating part or the at least one projection of the mating part.
Claims25
Device (10) for clamping a fluidic component (20) which is subjected to a fluctuating fluid pressure, said fluidic component (20) having a downstream end (21), an opposite upstream end (22) and an outer contour (23), said device comprising
- a holder (30) having a downstream end (31) and an opposite upstream end (32) and an inner contour (33), wherein in the assembled state the fluidic component is arranged inside the holder and wherein the downstream end (21) of the fluidic component (20) is supported by the downstream end (31) of the holder,
- an elastomeric shaped part (40) having a downstream end (41) and an opposite upstream end (42) and an inner contour (43) and an outer contour (44), wherein the inner contour (43) of the elastomeric shaped part (40) encloses and contacts the outer contour (23) of the fluidic component, and
- a mating part (50) adapted to be secured to the upstream end (32) of the holder (30), wherein the mating part has an downstream end (51) and an opposite upstream end (52) and an outer contour (53), wherein the outer contour (52) of the mating part is adapted to the inner contour (33) of the holder, and wherein the mating part comprises at least one projection (55), and wherein the projection projects into the holder and contacts and deforms the elastomeric shaped part, wherein
- the elastomeric shaped part comprises at least one compensating surface (45), and wherein the at least one compensating surface (45) in the assembled state does not contact the mating part or the at least one projection of the mating part.
Device according to any one of the preceding claims, wherein the compensating surface is not located at the upstream end of the elastomeric shaped part.
Device according to any one of the preceding claims, wherein the compensating surface (45) is formed by that at least a part of the downstream surface of the elastomeric shaped part (40) is inclined or sloped towards the inner (43) and/or the outer contour (44) of the elastomeric shaped part (40).
Device according to any one of the preceding claims, wherein the compensating surface (45) is formed by that at least a part of the downstream (low-pressure) surface of the elastomeric shaped part (40) is inclined or sloped (with regard to a plane perpendicular to the main axis of the device) towards the inner contour (43) of the elastomeric shaped part (40).
Device according to any one of the preceding claims, wherein the compensating surface (45) is formed by at least one hollow space located in the interior of the elastomeric shaped part (40).
Device according to any one of the preceding claims, wherein the at least one projection (55) of the mating part (50) has the form of at least one annular ring.
Device according to any one of the preceding claims, wherein the at least one projection (55) of the mating part (50) is in the form of a plurality of projections.
Device according to any one of the preceding claims, wherein the at least one projection (55) has an overall volume Vp and wherein the compensating volume (56) or internal compensating volume has an overall volume Vc, and wherein the overall volume Vp of the at least projection (55) is adapted to the overall volume Vc of the compensating volume (56) or internal compensating volume.
Device according to any one of the preceding claims, wherein the entire surface of the upstream end (42) of the elastomeric shaped part (40) contacts the downstream surface (51) of the mating part (50) and/or of the at least one projection (55).
Device according to any one of the preceding claims, wherein the fluidic component (20) is a nozzle for nebulization or aerosolization of a liquid.
Device according to any one of the preceding claims, wherein the fluidic component (20) is a nozzle for nebulization or aerosolization of a medically active liquid to be administered to a subject in need thereof by inhalation.
Device according to any one of the preceding claims, wherein the fluidic component (20) is an impingement-type nozzle.
Device according to any one of the preceding claims, wherein the fluidic component (20) has a cylindrical or rectangular shape.
Device according to any one of the preceding claims, wherein the device is adapted for clamping a plurality of fluidic components (20).
Device according to any one of the preceding claims, wherein the elastomeric shaped part (40) comprises or essentially consists of synthetic rubbers, fluoropolymeric materials, nitrile butadiene rubber (NBR), ethylene propylene diene monomer rubber (EPDM), polytetrafluorethylene (PTFE), silicone or liquid silicone rubber (LSR).
Device according to any one of the preceding claims, wherein the holder (30) and/or the mating part (50) and/or the at least one protrusion (55) comprises or essentially consists of stainless steel, polyethylene, polystyrene, polyether ether ketone (PEEK), acrylonitrile butadiene styrene (ABS), polycarbonate and polyamide.
Dependencies are inferred from the claim text.