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公开(公告)号：US20230216435A1
公开(公告)日：2023-07-06
申请号：US18149874
申请日：2023-01-04
Applicant: PIEZOPOWER, LLC
Inventor： Jason B. Snyder
Abstract: Disclosed are devices and methods for generating electrical power by using airflow energy to create air pressure fluctuations within Helmholtz chambers containing piezoelectric materials. The generator device includes an intake having stationary blades for directing wind into a flow treatment stage, which in turn directs a flow of modified air into a flow interface stage. In the flow interface stage, a plurality of Helmholtz chambers containing piezoelectric units are configured around a flow interface chamber wherein passing modified airflow establishes air pressure fluctuations within the Helmholtz chambers thereby causing the piezoelectric units to generate electricity. The device routes generated electrical current to a processor for use as a power source. Also disclosed is a method of generating electrical power using airflow energy. The method includes collecting airflow from the environment to create pressure fluctuations within containers housing piezoelectric units.
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公开(公告)号：US20180147732A1
公开(公告)日：2018-05-31
申请号：US15829058
申请日：2017-12-01
Applicant: Delaware Capital Formation, Inc.
Inventor： Maurice PERLMAN , Keith S. ATTEE
CPC classification number: B25J15/0625 , B25B11/007 , B25J15/0616 , B25J15/0633 , B25J15/0675 , B65G47/91 , F04F5/20 , F04F5/52 , Y10T137/87893
Abstract: A vacuum device for a material handling system includes a vacuum device body and a sealing element. The vacuum device body has a vacuum passageway in which a vacuum is generated in response to activation of a pressurized air supply that forces pressurized air through a venturi device. The sealing element moves to a sealing position to substantially seal the vacuum passageway when the air supply is activated, and is urged toward the sealing position via pressurized air that is diverted from an inlet of the vacuum device to the sealing element. The sealing element moves to substantially vent the vacuum passageway when the air supply is deactivated. The vacuum passageway may be in fluid communication with a vacuum cup, which seals against the object when the sealing element is at the sealing position and the vacuum generating device generates at least a partial vacuum in the vacuum passageway.
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公开(公告)号：US09981152B2
公开(公告)日：2018-05-29
申请号：US15316250
申请日：2015-06-04
Applicant: SEES AS
Inventor： Trond Fiskaa
CPC classification number: A62C35/58 , A62C3/14 , A62C3/16 , A62C35/60 , A62C37/36 , A62C99/0072 , A62C99/009 , F04F5/16 , F04F5/20 , F04F5/24 , F04F5/462
Abstract: An evacuation device (1) for transporting gas and/or particles out of a room includes mounting elements (7, 9) for installation in a wall (3) of the room such that an inflow end (6) is located on the face of the wall (3) that faces the inside of the room and an outflow end (8) is located outside the room. The evacuation device includes a duct (2) extending between the inflow end and the outflow end, and a barrier (12) is releasably attached in the duct to seal it when the evacuation device is in a standby state. Driving elements (21) are arranged to guide at least one flow of fluid through the duct when the evacuation device is in an activated state. Preferably, the duct includes a venturi nozzle, and the driving elements include a number of water nozzles located upstream of the inflow end of the venturi nozzle.
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公开(公告)号：US09879699B2
公开(公告)日：2018-01-30
申请号：US14734228
申请日：2015-06-09
Applicant: David E. Fletcher , Brian M. Graichen , James H. Miller , Keith Hampton
Inventor： David E. Fletcher , Brian M. Graichen , James H. Miller , Keith Hampton
Abstract: Venturi devices and systems incorporating the Venturi devices are disclosed. The Venturi devices have a body defining a passageway that has a motive section and a discharge section spaced a distance apart from one another to define a Venturi gap. Both the motive section and the discharge section converge toward the Venturi gap. Also, the body defines a first suction port and a second suction port generally opposite one another that are each in fluid communication with the Venturi gap. The Venturi gap is generally wider proximate both the first suction port and the second suction port than at a generally central point therebetween. In a system, the Venturi device has its motive section fluidly connected to a source of motive pressure and one or both of the first and second suction ports in fluid communication with a device requiring vacuum.
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公开(公告)号：US09863442B2
公开(公告)日：2018-01-09
申请号：US14802055
申请日：2015-07-17
Applicant: GOODRICH CORPORATION
Inventor： Nick Ruegsegger , Helperus Ritzema Rautenbach
Abstract: An aspirator system is disclosed comprising a collapsible/extendable aspirator air channel, wherein a burstable seal for entrapping air across the exit channel is provided, wherein said entrapped air creates a pressure causing the aspirator to extend to its extended state, whereupon the seal bursts and opens the air channel.
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Patent Agency Ranking
公开(公告)号：US20170355083A1
公开(公告)日：2017-12-14
申请号：US15619680
申请日：2017-06-12
Applicant: Xerex AB
Inventor： Gustaf Wigren , Peter Engborg
IPC: B25J15/06
CPC classification number: B25J15/0633 , B25J15/0625 , B25J15/0658 , B65G47/917 , F04F5/20 , F04F5/52
Abstract: A method for controlling a vacuum generator (3) in a vacuum system (10) for transportation of objects, which vacuum system (10) comprises a vacuum generator (3) driven by a compressed air flow via a first on/off valve (1), wherein the vacuum generator (3) is arranged to be brought in flow connection with the vacuum gripper means (6) comprised in the vacuum system (10), in order to supply vacuum to the vacuum gripper means (6) in result of the compressed air flow, wherein the vacuum system (10) comprises a second valve (2), which is arranged to supply compressed air into the vacuum system (10); one centralized pressure sensor (4) used for monitoring a system pressure (P) inside the vacuum system (10) and for adaptive blow-off; and a vacuum system controller (5), wherein if the on/off valve (1) is not flowing air to the vacuum generator (3), the vacuum system controller (5) indicates a state of no vacuum generation, and the second valve (2) is activated, allowing an amount of compressed air to flow into the vacuum-system (10) for blow-off, using vacuum system properties being characterized with respect to volume and flow-restriction in relation to the blow-off capacity of the blow-off function and for every release cycle wherein blow-off is terminated and excessive air injected into the system is released through the vacuum gripper means, analyzing pressure propagation following blow-off for calculating a duration of when the vacuum system (10) is being fully pressure-equalized (E) in parts of the vacuum gripper means by using a compensation factor (k), wherein the compensation factor (k) is stored and used for the next release cycle.
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公开(公告)号：US20170353095A1
公开(公告)日：2017-12-07
申请号：US15601608
申请日：2017-05-22
Applicant: Johnson Electric S.A.
Inventor： Ronny KEIL , Jie CHAI , Jing CHEN , Tao ZHANG , Yue LI
CPC classification number: H02K49/102 , F04B35/04 , F04F5/20 , H02K1/2786
Abstract: A driving device configured to drive a rotary body includes a motor assembly and a plurality of first magnets disposed on the rotary body along a circumferential direction thereof. Sides of the magnets facing the motor assembly form a plurality of magnetic poles. Upon rotation of the motor assembly, the magnets is driven by magnetic interaction between the motor assembly and the magnetic member to rotate to drive the rotary body to rotate. The present invention also provides a bladeless fan including this driving device.
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公开(公告)号：US09833910B2
公开(公告)日：2017-12-05
申请号：US14814708
申请日：2015-07-31
Applicant: Delaware Capital Formation, Inc.
Inventor： Maurice Perlman , Keith S. Attee
CPC classification number: B25J15/0625 , B25B11/007 , B25J15/0616 , B25J15/0633 , B25J15/0675 , B65G47/91 , F04F5/20 , F04F5/52 , Y10T137/87893
Abstract: A vacuum device for a material handling system includes a vacuum device body and a sealing element. The vacuum device body has a vacuum passageway in which a vacuum is generated in response to activation of a pressurized air supply that forces pressurized air through a venturi device. The sealing element moves to a sealing position to substantially seal the vacuum passageway when the air supply is activated, and is urged toward the sealing position via pressurized air that is diverted from an inlet of the vacuum device to the sealing element. The sealing element moves to substantially vent the vacuum passageway when the air supply is deactivated. The vacuum passageway may be in fluid communication with a vacuum cup, which seals against the object when the sealing element is at the sealing position and the vacuum generating device generates at least a partial vacuum in the vacuum. passageway.
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公开(公告)号：US09764479B2
公开(公告)日：2017-09-19
申请号：US14002987
申请日：2011-03-14
Applicant: Ho-Young Cho
Inventor： Ho-Young Cho
CPC classification number: B25J15/0658 , B25J15/0625 , F04B53/20 , F04F5/20 , F04F5/22 , F04F5/467 , F04F5/54 , F16B35/005
Abstract: A quick-release vacuum pump which is mainly applied to a vacuum transport system. The vacuum pump has a mechanism in which part of compressed air supplied for generating a vacuum state is stored firstly in a chamber, and then the vacuum state within the chamber is released when transportation is completed. When the vacuum state is released, a check valve is moved by the pressure of air that flows backward. The range of movement of the check valve is adjusted by a control means. An air filter is disposed at the lower end of the check valve. The release of the vacuum state is quick and controllable. Also, the filter is naturally filtered and cleaned.
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公开(公告)号：US09712035B1
公开(公告)日：2017-07-18
申请号：US13317570
申请日：2011-10-21
Applicant: Joseph J. Bango , Michael E. Dziekan , Paulo Lozano
Inventor： Joseph J. Bango , Michael E. Dziekan , Paulo Lozano
CPC classification number: H02K44/00 , B01L2400/0406 , B01L2400/0415 , B64G1/405 , F04B35/04 , F04B37/02 , F04B37/14 , F04F5/20 , F04F5/52 , H02K44/04 , H02K44/06
Abstract: An electrospray diffusion pump with an upper vacuum chamber coupled to a lower vacuum chamber by a cylinder having an aperture in the upper chamber at the center of a conductive extractor ring. A conductive tube is positioned in the upper chamber and is axially aligned with the conductive extractor ring. The conductive tube is coupled to receive a conductive or semi-conductive spray fluid. A voltage source is coupled between the conductive tube and the extractor ring and adjusted to form a Taylor Cone that provides a jet of charged droplets at the tip of the conductive tube, the charged droplets are attracted to the extractor ring and pass into the aperture, then through the cylinder into the second chamber. The charged droplets have nearly zero vapor pressure and transfer ambient gas at a first pressure from the upper chamber to the lower chamber at a lower pressure.
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