Fluid Flow Patents (Class 116/264)
  • Patent number: 10094693
    Abstract: A flow meter includes a housing which accommodates helical guide blades and a core located within the guide blades, and a measuring chamber in which a measuring ball can rotate in a circle. Between the end of the core bounding on the measuring chamber and the end face of the outlet section oriented to the measuring chamber there are no wall portions present, and the distance between the outside edge of the core end bounding on the measuring chamber and the inside edge of outlet-section-end-face oriented to the measuring chamber is smaller than the diameter of the measuring ball. Consequently, the fluid may unimpedely flow out of the measuring chamber as a result of which there is low flow resistance of the flow meter. Moreover, this causes no obstacles to be present between two oppositely arranged spots on the housing that may disturb a light ray for the measurement.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: October 9, 2018
    Inventor: Marcel Leonardus Josephus Petrus Peters
  • Patent number: 10036682
    Abstract: An underwater drain leakage detection apparatus for a swimming pool is provided including an elongated pole and a housing connected to one end of the pole. A flexible leak detection tube is connected to the housing at a first end thereof and is in liquid communication with the inside of the housing. The housing is positioned over a suspected leak area below the surface of the water in the pool by suitable manipulation of the elongated pole by the pool leak specialist. A suitable dye substance then is inserted into the distal top or free end of the leak detection tube while the latter is positioned just below the surface of the swimming pool water by the leak specialist. The dye is observed from above the surface of the swimming pool water to determine whether there is a leak. If there is a leak in the area of the pool covered by the housing, the dye easily will be observed to move downward along the tube.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: July 31, 2018
    Inventor: Steve Lenart
  • Patent number: 9574919
    Abstract: A detection system includes a first sensor coupled to a pipe associated with a pump and generates temperature data associated with a temperature of the pipe. The system includes a second sensor positioned within an acoustic sensing distance from the pump and that generates sound data associated with a sound of the pump. The system includes a processing device configured to execute data instructions to store a baseline temperature signature and a baseline acoustic signature, and receive the temperature data from the first sensor and the sound data from the second sensor. The processing device is configured to, based on (1) a determination that flow through the pipe is reduced by comparing temperature data to the baseline temperature signature, and (2) a determination that the pump remains operational based on comparing the acoustic data to the baseline acoustic signature, generate an indication that the pipe is blocked.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: February 21, 2017
    Assignees: University of Southern California, Chevron U.S.A. Inc.
    Inventors: Chengjie Zhang, John Heidemann, Gregory William Laframboise
  • Patent number: 9027503
    Abstract: A multi-purpose reflective collar for attachment to a fire hydrant that increases the visibility of the hydrant to motorists and others, and that indicates the hydrant's flow rate, water source and pressure rating to firefighters and other first responders through the use of color coded reflective tape webs that can be removably attached to the collar. The multi-purpose reflective collar of the present invention is adjustable to accommodate fire hydrants of different shapes and sizes, and is useful in increasing safety and the efficiency of firefighting procedures.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: May 12, 2015
    Inventor: Thomas Sampson
  • Patent number: 8994527
    Abstract: A device for collecting samples of the sea floor, including a collection apparatus, a diving apparatus and a control apparatus.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: March 31, 2015
    Inventor: Galen G. Verhulst
  • Patent number: 8961781
    Abstract: A filter status module for use with a container based filtration device includes a dispensing sensor and a user interface communicatively coupled to a processing unit. The processing unit counts a number of dispensing events, duration and/or angle of tilt signaled by the dispensing sensor and outputs a filter status on the user interface as a function of the number of dispensing events, duration and/or angle of tilt. The processing unit may further track an elapsed period of time from insertion of a new filter and output the filter status as a further function of the elapsed period of time.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: February 24, 2015
    Assignee: Brita LP
    Inventors: Benjamin Ma, Rick T. Nishijima, John W. Jamieson, Edward M. Buckley, Teruo Hishiki, David Dycher, Ho Pun Chung
  • Patent number: 8573147
    Abstract: A pipe direction and size indicator which may be attached to a pipe inspection camera for use in determining the flow direction and size of a pipe. The pipe direction and size indicator generally includes an adapter member, extension member and indicator member. The adapter member is adapted to be removably attached to a camera. The extension member is removably secured to the adapter member by a threaded connection. The outer end of the extension member includes an indicator member which is attached thereto and allows the indicator member to freely rotate, swivel and move about the extension member. By observing the positioning of the indicator member, which will be freely affected by gravity, an operator of the present invention may determine the directional flow of a pipe being inspected. Further, by accounting for the size of the indicator member, the size of the pipe may also be determined.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: November 5, 2013
    Inventor: Jeffrey M. Tanner
  • Patent number: 8480862
    Abstract: An improved system and method for controlling ozone concentration in connection with a multi-chamber tool. The system and method involve a first and a second concentration controller in combination with an ozone generator. The first concentration controller detects an EVENT (i.e., one of the chambers in the multi-chamber tool coming on-line or off-line) and in response provides a power instruction to the ozone generator in accordance with a predictive control algorithm. The first concentration controller has a fast (i.e, about 1 second) response time. The second concentration controller is masked from the ozone generator during the EVENT, but otherwise controls the generator after an interval of time has lapsed after the EVENT. The second concentration controller has a slower response time than the first concentration controller, however the second concentration controller provides the system with long-term stability and can be used to provide updated data to the predictive control algorithm.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: July 9, 2013
    Assignee: MKS Instruments, Inc.
    Inventors: Vitaly J. Berkman, Thomas J. Ryan
  • Patent number: 8459202
    Abstract: A gas flow of a gas pipe is indicated before an electromagnetic valve is actually opened, so that the electromagnetic valve can be prevented from being opened or closed by a wrong manipulation or hazards caused by undesired mixing of gases can be avoided so as to improve safety. The substrate processing apparatus includes a state detection unit configured to detect an opening/closing request state and an opening/closing state of a valve installed at a gas pipeline; and a indication unit configured to indicate a gas flow state of the gas pipeline predicted according to the opening/closing request state and a gas flow state of the gas pipeline when the valve is opened, in a way that each state is distinguished.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: June 11, 2013
    Assignee: Hitachi Kokusai Electronics Inc.
    Inventors: Tomoyuki Yamada, Mamoru Oishi, Kanako Kitayama
  • Publication number: 20120186509
    Abstract: An administration set flow condition monitor (30) includes a body member (32) configured to communicate with a fluid conduit (12) of the administration set (10). A flow monitoring mechanism (40) is carried by the body member (32) for indicating flow in the fluid conduit (12) of the administration set (10). An enunciator (56, 58) is associated with the flow monitoring mechanism (40) to indicate flow condition in the fluid conduit (12) of the administration set (10).
    Type: Application
    Filed: July 27, 2010
    Publication date: July 26, 2012
    Inventors: Zoran Milijasevic, Richard J. Parkinson
  • Publication number: 20110288794
    Abstract: A flow counter capable of correctly checking an operating state of the flow counter and leakage and correctly indicating a total amount of flow by allowing the rotation of a pointer to be learned accurately in the form of numerical data. In this flow counter (1), rotation of a flow detection driving gear (5) is transmitted to a flow indication section (4) composed of a plurality of digit wheels (4a1 to 4a8) by a main gear train section (2). The rotation of the flow detection driving gear (5) is also transmitted to a first pointer (6) by a branch gear section (3) branched from the main gear train section (2). The first pointer (6) indicates the operating state of the flow detection driving gear (5). The flow indication section (4) indicates a total amount of flow. A rotation detection member, which is a component of a rotation sensor, is integrally rotatably mounted on a rotating shaft of the first pointer (6). An amount of rotation of the rotating shaft is electrically detected by a rotation sensor.
    Type: Application
    Filed: May 18, 2011
    Publication date: November 24, 2011
    Inventor: Huiqing Chen
  • Patent number: 7954445
    Abstract: A pressure state indicator indicates whether or not positive pressure fluid or negative pressure fluid is supplied to a fluid path. A fluid guide member 17 is constituted of a joint main body 11 in which a fluid path 12 is formed and a partition member 16 provided outside the joint main body 11, and an accommodation space 19 is formed by the partition member 16 and the joint main body 11. A pressure chamber 22a communicating with the fluid path 12 through a communicating hole 23 is formed in the accommodation space 19 by a sliding sealing member 21 provided in the accommodation space 19. The sliding sleeve 24 is located at a non-supply position by a spring member 25 when no pressure is supplied to the fluid path 12, and the sliding sleeve 24 is moved to a supply position when pressure is supplied thereto. A pressure state in the fluid path 12 is externally confirmed by observing positions of the sliding sealing member 21 and the sliding sleeve 24 from outside.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: June 7, 2011
    Assignee: Koganei Corporation
    Inventor: Hiroshi Satoh
  • Patent number: 7730847
    Abstract: A personal gas flow indicator is disclosed in which a flow indicator is interposed between the proximal end of a gas delivery cannula that conducts breathing-gas from a breathing-gas source to an airway interface device (AID) for introducing the breathing-gas into the airway of an patient. By having the gas flow indicator positioned at the proximal end of the gas delivery cannula, the patient or some other person in visual contact with the patient can easily determine whether or not breathing-gas is flowing through the gas delivery cannula. The flow indicator is sufficiently lightweight that it can be worn by the patient. It is both disposable and portable and can be easily retrofit into existing-gas delivery systems. The flow indicator can be incorporated into an AID, into a gas delivery cannula, or it can be easily retrofit into one-piece gas delivery cannulas.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: June 8, 2010
    Inventors: Iris H. Redd, John L. Redd
  • Publication number: 20090145349
    Abstract: A fluid flow indicator consists of a flow chamber having a freely spinning flow rate indictor that rotates in response to fluid flow and rotates in proportion to the rate of flow. A visible indicator allows a medical practitioner to carefully control the flow rate even though the fluid flow is smooth without other visible signs of movement. In one embodiment a plurality of flow holes are provided in the fluid chamber to direct the fluid around the fluid flow indicator rotor causing the rotor to rotate in proportion to the rate of fluid flow. Another embodiment provides a flow opening to direct the fluid past the rotor. The fluid chamber is provided with a connecting nipple on either end to connect the flow indicator with a fluid delivery system.
    Type: Application
    Filed: December 8, 2008
    Publication date: June 11, 2009
    Inventor: William C. Hebert
  • Publication number: 20090025626
    Abstract: A fluid flow indicator for observation of low flow rates in liquids includes a capillary tube (12) slidably mounted at each end in passageways (4) and (5) and biased into a no-flow indicating position by a castellated elastomeric membrane (14) providing a sealed barrier within a chamber (1) between a first zone (17) and a second zone (18). Fluid flow introduced through spigot (9) causes the capillary tube (12) to slide to the opposite end of the passageways (4) and (5) whereupon the deformed position of the elastomeric membrane (14) can readily be observed through transparent walls (3) in the chamber (1). Upon cessation of flow, the elastomeric membrane (14) causes the capillary tube (12) to revert to its original position.
    Type: Application
    Filed: March 2, 2007
    Publication date: January 29, 2009
    Applicant: KEYSTONE PRODUCT DEVELOPMENTS PTY LTD
    Inventors: Kenneth Arthur Logan, Paul Christopher Dastoor, Ian Wesley Robert Clarke, Peter J. Hester
  • Patent number: 7401572
    Abstract: A view around flow indicator comprising a housing, a turbine wheel, a cylinder, and a visually perceptible pattern on the outside surface of the cylinder is disclosed. The housing has an inside surface defining a flow path. The inside surface of the housing forms a generally circumferentially extending annular recess. The turbine wheel comprises a hub positioned on the longitudinal axis, a ring positioned in the annular recess, a plurality of radially extending turbine blades connecting the hub with the ring, and plurality of magnets carried by the ring. The cylinder is mounted on an outside surface of the housing for rotation around the longitudinal axis of the flow path. The cylinder carries a plurality of magnets which are magnetically coupled to the plurality of magnets carried by the ring. The visually observable pattern on the outside surface of the cylinder permits rotation of the cylinder to be visually ascertained.
    Type: Grant
    Filed: March 1, 2006
    Date of Patent: July 22, 2008
    Inventor: Wade L. Donehue
  • Patent number: 6851383
    Abstract: The invention relates to a supply meter for liquid or gaseous mediums or electric current. The supply meter is provided with a display device for the medium that passes the supply meter. The entire previous supply is displayed by means of a cumulated meter reading. A verification code can be produced by said meter reading. The verification code display device is mechanically linked to the gear of the supply display device.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: February 8, 2005
    Assignee: Utility Consult Hinzmann & Koenig OHG
    Inventors: Peter Wilhelm Koenig, Martin Hinzmann
  • Patent number: 6796264
    Abstract: A metal body has a threaded inlet port and a threaded outlet port which extend to corresponding inlet and outlet chambers within the body, and a semi-spherical liner seats within the body and has ports communicating with the inlet and outlet chambers. A dome-shaped lens is sealed to the body and cooperates with the liner to define a fluid circulating chamber enclosing a fluid sensing ball having crossing holes therein. A mounting plate has a first opening receiving the body and a second opening receiving a power operated optical sensor having fiber optic cables positioned to sense through the lens movement of the ball within the fluid circulating chamber. The ball is sensitive to a very low flow rate and provides a visual indicator of the flow, and the optical sensor provides an electrical signal for operating an alarm or apparatus such as a machine which requires the fluid flow.
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: September 28, 2004
    Assignee: Machine Products Corporation
    Inventors: Robert C. Appenzeller, Curtis R. Bailey
  • Publication number: 20040055524
    Abstract: An improved wind-indicator with lighting device comprises a blade body, a front cap, a permanent-magnet, a wire seat, a rear cover, two axle bearings, an axle, a mounting body, a fixing post, two washers, and a bolt nut wherein said blade body is provided with a multiple of blades with lighting members disposed thereon. A wire coil encircling the external periphery of said wire seat thereof provides electrical wires to conduct electricity to the interior of axle bearings from which said electrical wires are further extended to connect with said lighting members to form an electrical circuit. When said blades thereof moved by wind, said blade body will pivotally rotate via said axle thereof, causing the rotation of the wire coil therewith which, interacting with the magnetic pole of said permanent-magnet, will cut through the magnetic line of force thereof to generate electrical current for the lightening of said lighting members thereof for variety of said wind-indicator thereof.
    Type: Application
    Filed: September 23, 2002
    Publication date: March 25, 2004
    Applicant: Kok Han Industrial Co., Ltd.
    Inventor: Kuei-Hua Lin
  • Publication number: 20030230230
    Abstract: A tetherable wind indicator is disclosed. The wind indicator includes a hollow body with an inlet opening therethrough, the inlet opening defining an inlet area, the inlet area being smaller than the hollow body's greatest cross-sectional area, the inlet opening permitting wind to enter the hollow body. At least one tether extends from the hollow body. At least one vent is disposed through the hollow body. The vent is oriented to direct wind exiting from the hollow body such that the hollow body rotates when the wind passes therethrough.
    Type: Application
    Filed: June 18, 2002
    Publication date: December 18, 2003
    Applicant: PREMIER KITES
    Inventors: Albert Lim, Valentine B. Deale
  • Patent number: 6644236
    Abstract: A deterioration indicator for a resin mold member in a product includes a deteriorating state checking portion configured to allow evaluation of a deterioration state of the resin mold member. The deteriorating state checking portion includes a material whose weather resistance value, &Dgr;E, is less than a weather resistance value, &Dgr;E, of the resin mold member.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: November 11, 2003
    Assignee: Ricoh Company, Ltd.
    Inventor: Toshiro Sahashi
  • Publication number: 20030121466
    Abstract: A signalling device (10) adapted to make a percussive sound, for example, under water. The signalling device (10) may be attached to a pressurised fluid source, such as a diver's compressed air supply, the device (10) including: a housing (12) having a passageway (22), at least in part, for communication with the fluid source; a valve member (34) located in the passageway (22) and movable between a closed position in which it substantially blocks the passageway (22), and an open position in which fluid may flow through the passageway (22); biasing means (42), such as a spring, biasing the valve member (34) towards the closed position, wherein the valve member (34) reciprocates between the open and closed positions when a pressure difference above a set value exists on either of the valve member (34) to produce a perscussive sound.
    Type: Application
    Filed: November 21, 2002
    Publication date: July 3, 2003
    Inventor: Peter Katz
  • Patent number: 6572523
    Abstract: A centrifuge includes a centrifuge housing and a rotor. The housing defines an inner chamber, and the rotor is provided in the chamber. An indicator is provided on the housing. The indicator is constructed and arranged to indicate rotor movement. A rotor sensor is operatively coupled to the indicator, and the rotor sensor is constructed and arranged to sense rotor movement.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: June 3, 2003
    Assignee: Fleetguard, Inc.
    Inventors: Peter K. Herman, Hendrik Amirkhanian, Kevin South
  • Publication number: 20030089298
    Abstract: The present invention provides a device, system, and method for detecting and measuring the bi-directional flow of a fluid through a fluid meter, such as a household or business water meter. In one device embodiment the invention comprises a logical switch collar (12) disposed over an analog fluid meter (14) having a sweep-hand (18) with a magnet (16) coupled thereto. In operation, the logical switch collar (12) consists of at least two magnetic switches that are triggered to open or close in response to the rotational movement of the sweep-hand (18) as fluid flows through a fluid meter (14) in both the forward and reverse directions. These switching events are detected and recording by an electronic module (19). Advantageously, the present invention accurately monitors and records fluid consumption at predetermined intervals when the fluid flows through the meter in either direction (14).
    Type: Application
    Filed: November 15, 2001
    Publication date: May 15, 2003
    Inventor: Erwin Holowick
  • Patent number: 6550418
    Abstract: A refillable receptacle for housing and dispensing a fibrous, windborne material is disclosed. The receptacle includes a closure cap having one or more apertures for dispensing said fibrous material and has a threaded bottom for attachment to, and replacement of, the windage/elevation cap an optical scope. The threaded bottom also allows the device to be attached to an archery bow or bow stabilizer. The bottom of the device may also be adapted so as to allow attachment of the device to pliable articles such as fabric or clothing or to rigid articles such rails or platforms.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: April 22, 2003
    Inventor: Vance Williamson
  • Publication number: 20020139290
    Abstract: A refillable receptacle for housing and dispensing a fibrous, windborne material is disclosed. The receptacle includes a closure cap having one or more apertures for dispensing said fibrous material and has a threaded bottom for attachment to, and replacement of, the windage/elevation cap an optical scope. The threaded bottom also allows the device to be attached to an archery bow or bow stabilizer. The bottom of the device may also be adapted so as to allow attachment of the device to pliable articles such as fabric or clothing or to rigid articles such rails or platforms.
    Type: Application
    Filed: March 30, 2001
    Publication date: October 3, 2002
    Inventor: Vance Williamson
  • Patent number: 6386196
    Abstract: An oxygen delivery system which provides a visual and audible warning signal for system or oxygen flow failure. When pressure fitted tubing detaches, the audible whistle alarm indicates that the oxygen delivery system has become disconnected and the system has failed. An audible alarm signals that the oxygen delivery system has failed. A clear acrylic ball, located at the device's central area, contains a fan. The fan is mounted so that it turns in response to oxygen flow. The turning fan has blades which are color coded to visually indicate the delivery rate of oxygen to a patient. An anti-reflux mechanism, located at the proximal end of the device assures the elimination of back-flow pathogens into re-usable permanent equipment.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: May 14, 2002
    Inventor: Steven E. Culton
  • Patent number: 6303023
    Abstract: A filter use device is adapted for use with various types of containers, such as, liquid containers for water coolers in which the device includes a cap to be threaded onto an open end of the container, a filter cartridge in the cap which retains a conventional filter and a resilient pawl which is engageable with a disk having an indicator aligned with a slot in the cap and engageable with ratchet teeth to incrementally advance the indicator each time that the cap is threaded onto the end of the container; and when the indicator reaches the end of the slot is shifted to prevent any further advancement of the disk or passage of water through the filter or device and thereby signify the end of the life of the filter and the need for replacement of the filter.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: October 16, 2001
    Inventors: Albert W. Gebhard, Robert M. Parker
  • Patent number: 6260507
    Abstract: A reflective collar attachment which is designed to be attached around the periphery of an existing fire hydrant includes mating semi-circular halves, each of which has formed therewith a pair of integral semi-circular extensions with a number of circular stair-stepped indentations of incrementally decreasing radii. Each half of the collar can be adjusted in inner radius by severing the semi-circular extensions at any of the indentations so that the collar can be adjusted to fit any fire hydrant design. Other embodiments include a collar attachment of three piece construction and a resilient strip with projecting top and bottom teeth which can fit any fire hydrant design or shape. A removable reflective tape web is positioned in a display area positioned around the periphery of any of the collar attachments.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: July 17, 2001
    Inventors: Jeffrey K. Simpson, Timothy A. Carty
  • Patent number: 6129265
    Abstract: A drink box beverage container having one or more entertainment features, such as a whistle, horn or pinwheel, actuated by suction applied through a drinking straw inserted into the container.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: October 10, 2000
    Inventors: David G. Perryman, Bradley K. Groff
  • Patent number: 6033557
    Abstract: A filter use device is adapted for use with various types of containers, such as, liquid containers for water coolers in which the device includes a cap to be threaded onto an open end of the container, a filter cartridge in the cap which retains a conventional filter and a resilient pawl which is engageable with a disk having an indicator aligned with a slot in the cap and engageable with ratchet teeth to incrementally advance the indicator each time that the cap is threaded onto the end of the container; and when the indicator reaches the end of the slot is shifted to prevent any further advancement of the disk or passage of water through the filter or device and thereby signify the end of the life of the filter and the need for replacement of the filter. The number of rachet teeth may be varied in accordance with the number of containers with which the filter is to be used.
    Type: Grant
    Filed: June 2, 1998
    Date of Patent: March 7, 2000
    Inventors: Albert W. Gebhard, Robert M. Parker
  • Patent number: 6026539
    Abstract: A vacuum cleaner comprises a housing having a floor-engaging nozzle fluidly interconnected with a filter bag in a closed filter bag chamber in the housing through a suction passageway, an exhaust vent in the filter bag chamber to exhaust filtered air exiting from the filter bag chamber and a vacuum motor provided in the housing to draw air from the floor-engaging nozzle to the filter bag. An exhaust filter is mounted in the exhaust vent. A sensor in the filter bag chamber detects a condition representative of the flow of air through the exhaust filter element and an exhaust filter indicator interconnected with the sensor provides a signal to a user when the condition reaches a predetermined level to indicate a clogged condition of the exhaust filter. A sensor and indicator can also be provided for the filter bag so that independent signals can be generated relating to the clogged condition of one or both of the filter bag and exhaust filter.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: February 22, 2000
    Assignee: Bissell Homecare, Inc.
    Inventors: Brandon L. Mouw, John J. Jailor
  • Patent number: 5900138
    Abstract: A vessel for filtering liquids includes a container and a receptacle for the liquid to be filtered, with a filtering device between the receptacle and the container. A lid is removably fitted to the container for the purpose of easy access to the container. A counting device is associated with the lid and is automatically activated by the removal of the lid for detecting and counting the occasions on which access is gained to the container by removing the lid.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: May 4, 1999
    Assignee: Laica S.R.L
    Inventor: Leonida Moretto
  • Patent number: 5798697
    Abstract: An apparatus for detecting the flow direction of a fluid from an apparatus or between two apparatuses such as a biohoods, fume cabinets, or filters. The device includes a conduit horizontal plane and adapted to receive the fluid. A detecting element is disposed within the conduit and is movable in the direction of fluid flow, the detecting element being in direct contact with the fluid. A sensing element may be coupled to the conduit for determining when the detecting element reaches a predetermined position within the conduit. The circuitry coupled to the sensing element enables selection of a desired flow direction and actuates an alarm when the detected flow direction is other than the one selected.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: August 25, 1998
    Inventor: Brian Wiseman
  • Patent number: 5661461
    Abstract: An apparatus for detecting the flow direction of a fluid from an apparatus or between two apparatuses such as a biohoods, fume cabinets, or filters. The device includes a conduit horizontal plane and adapted to receive the fluid. A detecting element is disposed within the conduit and is movable in the direction of fluid flow, the detecting element being in direct contact with the fluid. A sensing element may be coupled to the conduit for determining when the detecting element reaches a predetermined position within the conduit. The circuitry coupled to the sensing element enables selection of a desired flow direction and actuates an alarm when the detected flow direction is other than the one selected.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: August 26, 1997
    Inventor: Brian Wiseman
  • Patent number: 5645011
    Abstract: A fluid flow indicator is presented particularly for use within an existing gasoline pumping apparatus. The fluid flow indicator includes an outer cage member, a first hollow transparent cylindrical member contained within the outer cage member, and a second hollow transparent cylindrical member concentrically retained within the first hollow transparent cylindrical member. The fluid flow indicator may also include a filter member and fluid movement detection means contained within the second hollow transparent cylindrical member. The fluid flow indicator is especially designed to be retrofitted within any existing fluid flow line.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: July 8, 1997
    Assignee: PDQ Food Stores, Inc.
    Inventors: Bruce Winkler, Rocky Van Asten
  • Patent number: 5595137
    Abstract: The wind detector contains a freely movable main section that has wings which will respond to a wind current. The detector is small and light weight so that it will fit into the pocket of a hunter. In addition to having an ability to show wind direction, the detector has a scent container that contains a scent which will mask the hunter's scent and emit a scent attractive to a hunted animal.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: January 21, 1997
    Inventor: Anthony W. Delmonte
  • Patent number: 5572945
    Abstract: An omnidirectional wind indicator. An elongated mast is rotatable about its axis with respect to a base support. The mast is of tapered design and flexible, resilient composition with flexibility increasing with distance above the base support. A three-sided flag includes a curvilinear leading edge. A sleeve is formed along the curvilinear edge for receiving the mast. When inserted, the upper end of the mast follows the curvilinear shape of the sleeve. The resulting configuration spring-loads the flexible upper portion of the mast to maintain the flag in taut alignment. Wind velocity is indicated by tails sewn to the trailing edge of the flag and by wings pivotally mounted transverse to the plane of the flag.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: November 12, 1996
    Assignee: Constance D. Kennedy
    Inventor: Reginald C. Eastaugh
  • Patent number: 5469738
    Abstract: A wind speed indicator includes a series of spaced individual indicia provided on a member which is rotatable in response to movement of air caused by the wind. The indicia may take the form of individual dots spaced equally about the circumference of a circle centered on the axis of rotation of the rotatable member so that, when the rotatable member is rotated, the dots cooperate to define a virtual ring when rotated above a predetermined angular velocity in response to a predetermined threshold wind speed. Additional series of individual indicia, such as dots, are formed about succeeding smaller concentric circles and are spaced farther apart. As wind speed increases, additional virtual rings are apparent to indicate when wind speed has exceeded additional predetermined thresholds. The indicia can either be provided on an impeller which is directly rotated by the wind, or on a rotatable member which is rotatably driven in response to rotation of a separate impeller rotatably driven by the wind.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: November 28, 1995
    Inventor: David L. Hendrickson
  • Patent number: 5419360
    Abstract: A fluid supply system including a casing having at least one duct extending through it for the passage of fluid and a recess in the casing around the duct or ducts, a cover covering the recess and held against a bearing surface on the casing surrounding the recess, the cover carrying a continuation of the or each duct, and a vent in either the casing or the cover communicating the recess with the environment outside the casing, is provided with a leak tell-tale device for indicating passage of fluid along a path, such as the vent, which, in the event of a leakage of fluid from a duct into the recess, would be followed by the leaked fluid.
    Type: Grant
    Filed: December 3, 1993
    Date of Patent: May 30, 1995
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "S.N.E.C.M.A."
    Inventor: Michel M. A. A. Lechevalier
  • Patent number: 5413146
    Abstract: An object of the present invention is to provide a hose of low cost, which can be installed very easily, which remains reliable over a long period of time, and in which damage to the inner construction can be easily discovered. An auxiliary pressure cord layer 7 is capable of being deformed by the pressure of a fluid in a chamber 9. A float 10 attached to a hose 1 with a mooring line is also attached to a hose body 2 through a connecting member, and when an amount of deformation of the auxiliary pressure cord layer 7 has reached a predetermined value, the connecting member is fractured and the float 10 is separated from the hose 1.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: May 9, 1995
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Masuo Kuroda, Fumihiko Yazaki, Masashi Wakabayashi, Naoyuki Ohoka
  • Patent number: 5410298
    Abstract: An apparatus for detecting the flow direction of a fluid between two enclosed spaces, such as hospital rooms, includes a conduit extending along a horizontal plane and adapted to receive the fluid. A detecting element is disposed within the conduit and movable in the direction of fluid flow, the detecting element being in direct contact with the fluid. A sensing element may be coupled to the conduit for determining when the detecting element reaches a predetermined position within the conduit. The circuitry coupled to the sensing element enables selection of a desired flow direction and actuates an alarm when the detected flow direction is other than the one selected.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: April 25, 1995
    Inventor: Brian Wiseman
  • Patent number: 5328597
    Abstract: A self-contained electronic monitoring unit for attachment to a device, such as a water filter, designed to be used until the occurrence of a predetermined event such as a predetermined number of uses, includes transducer for providing distinct outputs such as different audio output signals. A programmed integrated circuit and use detecting means such as electrical contacts detect each use of the device and monitor when the device is operational, when the end of life event is imminent and has occurred. The integrated circuit is programmed to operate the transducer to produce output signals during each use of the device informing the user that the device is operational, that the predetermined event or end of useful life is imminent and that the useful life has expired. The unit includes a battery for supplying power to the transducer and integrated circuit.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: July 12, 1994
    Assignee: The Clorox Corporation
    Inventors: Norton K. Boldt, Jr., Kaj A. Johnson
  • Patent number: 5291182
    Abstract: An apparatus for detecting the flow direction of a fluid between two enclosed spaces, such as hospital rooms, includes a conduit extending along a horizontal plane and adapted to receive the fluid. A detecting element is disposed within the conduit and movable in the direction of fluid flow, the detecting element being in direct contact with the fluid. A sensing element is coupled to the conduit for determining when the detecting element reaches a predetermined position within the conduit. Circuitry coupled to the sensing element, enables selection of a desired flow direction and actuates an alarm when the detected flow direction is other than the one selected.
    Type: Grant
    Filed: September 24, 1991
    Date of Patent: March 1, 1994
    Inventor: Brian Wiseman
  • Patent number: 5174964
    Abstract: A gas testing apparatus of the type that directs a stream of gas to be tested through a tube containing reagent chemicals. The apparatus has a connector fitting to enable it to be connected to a closed system containing the gas to be tested, a base member having an orifice that reduces the pressure of the gas delivered to the testing tube to near atmospheric, a sliding cover that encloses the testing tube when it is positioned in the holder, and a rising stem indicator that indicates that gas flow has commenced through the tube. The apparatus also has tube seat seals for insuring that all gas entering the apparatus must flow through and not bypass the testing tube.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: December 29, 1992
    Assignee: Carrier Corporation
    Inventors: Harry F. Klodowski, Kenneth B. Barrett, Phil Hider
  • Patent number: 5167199
    Abstract: A sailflag, consisting of a light weight frame and a light weight material mounted on it, is interposed between two swivels by means of cable units which run from both sides of the framework of the sailflag to the two swivels. The sailflag is caused to move in the wind around an axis which extends between the two swivels. The points of attachment for the swivels are located on a plane or on a pole.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: December 1, 1992
    Inventor: Jurg Rehbein
  • Patent number: 5065690
    Abstract: A swimming pool leak detector for locating water leaks in a filled swimming pool from a standing position (when the depth of the pool allows) within the swimming pool. The leak detector is machined to resemble a billiard cue and consists of two main parts: a receiver and a plunger. The receiver is machined from a solid plastic rod with a reservoir at its broadest end to accommodate the plunger. A channel is drilled from the tip of the leak detector to the reservoir. The reservoir is filled by submerging the tip of the leak detector into a dye solution (food coloring) and pulling outwardly on the plunger which draws the dye solution into the reservoir. The user then enters the filled swimming pool with the filled leak detector and tests for leaks by placing the tip of the leak detector closely to the point of investigation.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: November 19, 1991
    Inventor: Donald T. Bontempo
  • Patent number: 5065622
    Abstract: This wind-direction indicator includes a pointing beam having a tail at one end formed by diverging feather segments, with a transverse hole in the central portion of the beam receiving a standard straight pin. A glass bead is interposed between the head of the pin and the underside of the beam, the upper extremity of the pin being attached to a standard alligator clip for attachment to a convenient twig. The hole receiving the pin is sufficiently larger than the pin to permit considerable rocking movement about a horizontal axis, and the beam is balanced after the assembly of the feathers by clipping the upwind end of the beam. This end is later finished by a short dip in a fluorescent paint, the rest of the device being finished either balck or with a camouflage pattern.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: November 19, 1991
    Inventor: Steven E. Veenstra
  • Patent number: 4930436
    Abstract: A weather vane and display includes a stop-member in two half sections for mounting at any desired position on a vertical post by clamping the two half sections together upon the post, a rotatable element in two half sections for mounting together about the post immediately above the stop-member, with the rotatable element being free to rotate about the post and upon the top edge of the stop member, with protruding studs from the rotatable elements providing brackets for mounting mannequins or display signs on either side of the rotatable element, whereby the displays or mannequins are rotated to a position in accordance with the prevailing direction of wind at a given time.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: June 5, 1990
    Inventor: Joseph Newman
  • Patent number: D308491
    Type: Grant
    Filed: September 30, 1986
    Date of Patent: June 12, 1990
    Inventor: Joseph A. Perry