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Suction nozzleRelated Patent Categories: Brushing, Scrubbing, And General Cleaning, Machines, With Air Blast Or Suction, Power Propelled Vehicle Or CarrierSuction nozzle description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060191098, Suction nozzle. Brief Patent Description - Full Patent Description - Patent Application Claims
[0001] This invention relates to a suction nozzle for a vacuum system. BACKGROUND OF THE INVENTION [0002] Vacuum systems for transporting particulate materials are well known and widely used. [0003] In one particular field, the vacuum system is used to provide a flexible hose which can be used to pick-up waste materials and transport those waste materials through an airstream and through the blower for discharge from the blower into a collection zone such as a bin or transport vehicle. [0004] Vacuum systems designed for transporting high quantities of material such as grain often use an air lock system to separate the grain from the air stream so that the air stream can pass through a high efficiency pump before recollecting the grain on a downstream side of the pump for transportation to a discharge location. However this arrangement is very expensive and very complex. [0005] Other simpler arrangements simply pass the materials through the blower, but of course such a blower cannot be a high efficiency pump since it does not provide the necessary type tolerances which are required since the materials must pass with the airstream through the blower and around the blades of the blower. Such arrangements therefore provide a reduced level of airstream and can therefore become relatively easily choked if the level of material to be carried that is picked up in the intake hose is too high. SUMMARY OF THE INVENTION [0006] It is one object of the invention to provide a suction nozzle which assists in transfer of materials through a flexible suction hose for transport of those materials in the air flow. [0007] The present invention thus provides a suction nozzle which can be used with any form of vacuum system. While the suction nozzle may be of advantage in many different types of vacuum system, it is primarily designed for and particularly useful in the heavy duty vacuum systems which are used to lift relatively large amounts of material in the airstream from the intake duct through the blower and into a collection zone. [0008] According to one aspect of the invention there is provided a suction nozzle for a vacuum system comprising: [0009] a cylindrical collar shaped and arranged for connection of a rearward end of the collar to an end of a flexible hose through which a vacuum can be drawn from a vacuum source, the collar being coaxial to the hose with a forward end of the collar located at or projecting forwardly from the end of the hose; [0010] a pick-up tube mounted within the collar so as to define a space between an inside surface of the collar at the forward end and an outside surface of the pick up tube with the space surrounding the pick-up tube through which air is drawn; [0011] the pick-up tube projecting forwardly from the forward end of the collar and having a forward end of the pick-up tube defining a mouth into which material to be picked up can be drawn to enter the pick-up tube to be transported by the hose to the vacuum source. [0012] Preferably the pick-up tube has at least a portion thereof which is coaxial with the collar. However the portion may be offset to one side so that the pick up tube is within the collar but not coaxial. [0013] Preferably the pick-up tube forms a straight cylindrical member which is coaxial with the collar so that it is a simple straight tube along its full length. [0014] Preferably the pick-up tube is coaxial with the collar and both the pick-up tube and the collar are circular in cross-section so that the space is annular. However the collar and/or the pick-up tube may not be circular in cross-section and any other shape can be used. [0015] Preferably the pick-up tube extends into the hose so that there is a length of overlap between the pick-up tube and the collar and the hose. [0016] Preferably the collar and the pick-up tube are supported in relative position by a plurality of angularly spaced spacer members. However other supports can be used provided there is a space with sufficient rigidity of the components to maintain the space constant. [0017] Preferably the space is of constant width around the pick-up tube, although it may be varied to provide an increase in the air flow into the space at required locations around the tube. [0018] Preferably there is provided a handle for manual manipulation of the pick-up tube, the handle being arranged to support and move the pick-up tube, the end of the flexible hose and the collar attached thereto. [0019] Preferably the handle is attached to the pick-up tube. [0020] Preferably the handle is an elongate member with a grasping portion at an upper end which can be grasped to manoeuvre the pick-up tube, the end of the flexible hose and the collar attached to a lower end thereof over the ground. [0021] Preferably the collar rests on the ground. [0022] Preferably the mouth is formed at an angle to a radial plane of the axis of the pick-up tube. Continue reading about Suction nozzle... Full patent description for Suction nozzle Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Suction nozzle patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Suction nozzle or other areas of interest. ### Previous Patent Application: Transport cleaning device Next Patent Application: Dual-tank vacuum cleaner Industry Class: Brushing, scrubbing, and general cleaning ### FreshPatents.com Support Thank you for viewing the Suction nozzle patent info. 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