A flexible tubing for fine bubble aeration is provided with an air passageway defined in part by an upper portion and a lower portion. The tubing can be made of a uniform weighted material with more material in the lower portion than in the upper portion. This makes the tubing self-orienting, in that it will tend to orient itself with micro-slits along the upper portion facing upward and the lower portion facing downward when submerged in a body of water. An automated, one-stage production line converts raw tubing material to a finished tubing product without the need for separate processing. A method of coiling the tubing places the micro-slits approximately 90° away from the surface of a spool hub, thereby avoiding a longitudinal arch in the tubing and ultimately preventing roll-over and improper slit orientation after installation in a water body.
B01F 3/04 - Mélange, p.ex. dispersion, émulsion, selon les phases à mélanger de gaz ou de vapeurs avec des liquides
B28B 11/16 - Appareillages ou procédés pour le traitement ou le travail des objets façonnés pour diviser les objets façonnés par découpage après extrusion
2.
Fine bubble delivery for potable water, wastewater, and clean water treatment
A flexible tubing for fine bubble aeration is provided with an air passageway defined in part by an upper portion and a lower portion. The tubing can be made of a uniform weighted material with more material in the lower portion than in the upper portion. This makes the tubing self-orienting, in that it will tend to orient itself with micro-slits along the upper portion facing upward and the lower portion facing downward when submerged in a body of water. An automated, one-stage production line converts raw tubing material to a finished tubing product without the need for separate processing. A method of coiling the tubing places the micro-slits approximately 90° away from the surface of a spool hub, thereby avoiding a longitudinal arch in the tubing and ultimately preventing roll-over and improper slit orientation after installation in a water body.
A flexible tubing (10) for fine bubble aeration is provided with an air passageway (20) defined in part by an upper portion (12) and a lower portion (14) . The tubing can be made of a uniform weighted material with more material in the lower portion than in the upper portion. This makes the tubing self-orienting, in that it will tend to orient itself with micro-slits (22) along the upper portion facing upward and the lower portion facing downward when submerged in a body of water. An automated, one-stage production line converts raw tubing material to a finished tubing product without the need for separate processing. A method of coiling the tubing places the micro-slits approximately 90~ away from the surface of a spool hub, thereby avoiding a longitudinal arch in the tubing and ultimately preventing roll-over and improper slit orientation after installation in a water body.
B05B 1/20 - Tuyaux ou goulottes perforés, p. ex. rampes de pulvérisationÉléments de sortie pour ces dispositifs
B26F 1/20 - Perforation par fentes, c.-à-d. en formant des entailles fermées à leurs extrémités sans enlèvement de matière avec des outils supportés par un tambour rotatif ou un support similaire
B29C 69/02 - Combinaisons de techniques de façonnage non prévues dans un seul des groupes principaux , p. ex. associations de techniques de moulage et d'assemblageAppareils à cet effet de techniques de moulage uniquement
B65H 54/02 - Bobinage et va-et-vient du matériau sur noyaux, bobines, tubes ou sur mandrins ou gabarits pour paquets analogues
C02F 3/20 - Procédés par les boues activées utilisant des diffuseurs
F16L 11/08 - Manches, c.-à-d. tuyaux flexibles en caoutchouc ou en matériaux plastiques flexibles avec armature noyée dans la paroi
F16L 11/118 - Manches, c.-à-d. tuyaux flexibles en caoutchouc ou en matériaux plastiques flexibles à paroi ondulée avec des agencements pour usages particuliers, p. ex. conducteurs d'électricité
F16L 11/12 - Manches, c.-à-d. tuyaux flexibles en caoutchouc ou en matériaux plastiques flexibles avec agencements pour usages particuliers, p. ex. spécialement profilés, avec couche protectrice, chauffés, conducteurs d'électricité
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