Acceleration Responsive Valve Control Patents (Class 137/48)
  • Patent number: 9204780
    Abstract: According to example embodiments, a dishwasher may include a siphon break apparatus configured to substantially prevent a siphon effect in a fluid conduit configured to drain a fluid from the dishwasher. The siphon break apparatus may include a first check valve in fluid communication with the fluid conduit and exposed to a pressure therein and a second check valve in fluid communication with the first check valve. The first and second check valves may be configured to be substantially closed when pressure in the fluid conduit increases as a result of fluid being pumped through the fluid conduit and substantially open when pressure in the fluid conduit decreases as a result of the fluid no longer being pumped through the fluid conduit. Thereby the siphon effect may be substantially prevented.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: December 8, 2015
    Assignee: Electrolux Home Products, Inc.
    Inventors: Virgil J. Francisco, Mark D. Montgomery, Ralph A. Porcaro, II
  • Patent number: 9201091
    Abstract: An accelerometer open loop control system comprising a variable capacitance accelerometer having a proof mass movable between fixed capacitor plates, drive signals applied to the capacitor plates, a charge amplifier amplifying an accelerometer output signal representing applied acceleration, and an autoranging facility for monitoring the output signal, and for adjusting the drive signals in dependence on the output signal in order to restrict the amplitude of the accelerometer output signal, thus maintaining sensitivity of the accelerometer while permitting response to a wide range of g values. Corrections are applied by means of look up tables to compensate for inaccuracies arising from movement of the proof mass and temperature variations.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: December 1, 2015
    Assignee: ATLANTIC INERTIAL SYSTEMS LIMITED
    Inventor: Alan Malvern
  • Patent number: 8534319
    Abstract: Methods and devices using a co-radial arrangement of serial siphon structures composed of siphon valves each separated by a capillary valve to save radial space in a fluidic system. Such serial siphon valves allow to sequentially distribute liquids in a fluidic system upon application of successive centripetal accelerations and decelerations applied to a rotary platform.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: September 17, 2013
    Assignees: Universite Laval, The Regents of the University of California
    Inventors: Michel G. Bergeron, Regis Peytavi, Horacio Kido, Marc Madou
  • Patent number: 8478489
    Abstract: A fuel vapor treatment apparatus includes a fuel tank, a canister, a passage forming member, a pressure-regulating valve, an acceleration detector, and a controller. The fuel tank is for a storage of fuel to be supplied to an internal combustion engine for a vehicle. The canister recovers fuel evaporated from the fuel tank. The passage forming member defines a passage through which the fuel tank and the canister communicate with each other. The pressure-regulating valve is provided in the passage forming member to connect or disconnect the fuel tank and the canister. The acceleration detector detects an acceleration value of the vehicle, and the controller controls the pressure-regulating valve based on the acceleration value detected by the acceleration detector.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: July 2, 2013
    Assignee: Denso Corporation
    Inventor: Hidetoshi Ooiwa
  • Patent number: 8302617
    Abstract: A fluid control valve for use in a system for inflating an anti-G garment. The valve includes an elongate chamber in which a valve member is moveable. The chamber has first and second axial ends. An inlet opening in a chamber wall provides for the flow of fluid into the chamber. A valve edge is provided at the second end of the chamber to form an outlet. The valve member has a first portion which closes the first chamber end and is moveable in the chamber between the inlet opening and the first chamber end, an intermediate portion which has a cross sectional area less than that of the chamber wall to permit the inflow of fluid to the chamber, and a second portion including a flow control device which co-operates with the valve edge to control fluid flow from the valve.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: November 6, 2012
    Assignee: Honeywell Normalair-Garrett (Holdings) Limited
    Inventors: Alec John Aldworth, Philip James Withers
  • Patent number: 8082066
    Abstract: Embodiments of the present invention provide systems and methods of controlling fluid dispense to ensure clean break off of fluid at the end of a dispense process and to reduce crystallization of fluid in the dispense nozzle. One embodiment of the present invention can include a controller that can, generate a flow control signal to cause a control valve to close according to a first close rate parameter for a first segment of the close range and to generate the flow control signal to cause the control valve to close according to a second close rate parameter for a second segment of the close range.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: December 20, 2011
    Assignee: Entegris, Inc.
    Inventors: Marc Laverdiere, Robert F McLoughlin
  • Patent number: 7546679
    Abstract: Apparatus and associated systems or methods include a linear machine with an elongate, axially-slidable core member (i.e., shaft). In one embodiment, the shaft includes at least one radial aperture to provide fluid (e.g., air) communication from an interior volume of a winding tube that contains one or more stationary windings, to either end of the shaft through a lumen that extends axially through the length of the shaft. The stationary windings are spaced apart to permit fluid to flow through a plurality of radial apertures in the winding tube. In particular, fluid circulation across the windings may provide sufficient cooling to increase the machine's maximum current rating. The fluid circulation may also provide pneumatic processing capabilities (e.g., vacuum hold, blow-off). In one exemplary embodiment, the apparatus may be used to insert tube-and-square paper separators into battery casings at high rates.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: June 16, 2009
    Assignee: The Gillette Company
    Inventors: William D. Motherway, Stuart M. Davis
  • Patent number: 7317971
    Abstract: Embodiments of the present invention provide systems and methods of controlling fluid dispense to ensure clean break off of fluid at the end of a dispense process and to reduce crystallization of fluid in the dispense nozzle. One embodiment of the present invention can include a controller that can, generate a flow control signal to cause a control valve to close according to a first close rate parameter for a first segment of the close range and to generate the flow control signal to cause the control valve to close according to a second close rate parameter for a second segment of the close range.
    Type: Grant
    Filed: August 10, 2006
    Date of Patent: January 8, 2008
    Assignee: Entegris, Inc.
    Inventors: Marc Laverdiere, Robert F. McLoughlin
  • Patent number: 7107128
    Abstract: Embodiments of the present invention provide systems and methods of controlling fluid dispense to ensure clean break off of fluid at the end of a dispense process and to reduce crystallization of fluid in the dispense nozzle. One embodiment of the present invention can include a controller that can, generate a flow control signal to cause a control valve to close according to a first close rate parameter for a first segment of the close range and to generate the flow control signal to cause the control valve to close according to a second close rate parameter for a second segment of the close range.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: September 12, 2006
    Assignee: Entegris, Inc.
    Inventors: Marc Laverdiere, Robert F. McLoughlin
  • Patent number: 6564824
    Abstract: A flow meter system that calculates mass flow rate based only on a single pressure signal. A flow controller is arranged in parallel with a restriction such that a constant pressure differential is maintained across the restriction. The pressure, and temperature if not controlled, of the fluid flowing through the restriction is measured on either side of the restriction. The pressure is compared to a plot of pressure versus mass flow rate calculated for the specific restriction and fluid being measured. The constant pressure differential maintained across the restriction yields a linear relationship between pressure and flow rate. If temperature is not controlled, the plot of pressure versus mass flow rate will remain linear, but the slope of the curve will be adjusted based on the temperature of the fluid.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: May 20, 2003
    Assignee: Flowmatrix, Inc.
    Inventors: Patrick A. Lowery, Petur Thordarson, Robert Laragione
  • Patent number: 6564825
    Abstract: A flow meter system that calculates mass flow rate based only on a single pressure signal. A flow controller is arranged in parallel with a restriction such that it constant pressure differential is maintained across the restriction. The pressure, and temperature if not controlled, of the fluid flowing through the restriction is measured on either side of the restriction. The pressure is compared to a plot of pressure versus mass flow rate calculated for the specific restriction and fluid being measured. The constant pressure differential maintained across the restriction yields a linear relationship between pressure and flow rate. If temperature is not controlled, the plot or pressure versus mass flow rate will remain linear, but the slope of the curve will be adjusted based on the temperature of the fluid.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: May 20, 2003
    Assignee: Flowmatrix, Inc.
    Inventors: Patrick A. Lowery, Petur Thordarson, Robert Laragione
  • Publication number: 20030016132
    Abstract: A method and apparatus for theft prevention and/or recovery of stolen drink dispensers generally comprises the provision of an anti-theft device within a drink dispenser machine for detecting illegitimate movements of the machine and thereafter disabling the machine's operation. The disruption of operation is accompanied by an indication on the machine's display panel alerting the possessor of a general failure and requesting the placement of a maintenance service call. Concurrently, an innocuous indicator is also activated for alerting the responding service technician to the possibility that the dispenser machine under repair is stolen.
    Type: Application
    Filed: July 18, 2001
    Publication date: January 23, 2003
    Applicant: LANCER PARTNERSHIP, LTD.
    Inventor: David C. Sudolcan
  • Patent number: 5921265
    Abstract: A device for operating a valve (1), preferably for a tire valve of a car, where a valve actuating pin (3) is biased to a valve-closing extended position and is to be depressed for opening the valve, has a disc-shaped operating member (6) arranged in a housing (4), which is mounted on the valve. The operating member is provided with a central recess (6') with gradually sloping sides in its surface facing the pin. An operating rod (7) is axially movably arranged in the housing substantially in line with the pin, the rod engaging the recess with one of its ends and the pin with the other.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: July 13, 1999
    Assignee: Ashbourne Limited
    Inventor: Ulf Rothman
  • Patent number: 4901746
    Abstract: A speed responsive control device is useful for preventing a dangerous overspeed condition of a propulsor. The device begins governing before the dangerous overspeed condition occurs through the use of an acceleration responsive mechanism which actuates the spool of a governor pilot valve. The spool is also actuated by a speed responsive mechanism in the form of a flyweight governor. The control device thus anticipates dangerous overspeed conditions to make necessary adjustments such as blade pitch corrections, to prevent a dangerous overspeed condition.
    Type: Grant
    Filed: June 27, 1988
    Date of Patent: February 20, 1990
    Assignee: Sundstrand Corporation
    Inventor: Jeffrey D. Metcalf
  • Patent number: 4284096
    Abstract: A fluid pressure governor adapted to sense the driven speed of an automatic transmission torque output shaft and to develop a speed signal that may be used by an automatic transmission control circuit in conjunction with a torque demand or engine torque signal to control automatic ratio changes in a transmission mechanism as torque is delivered from a vehicle engine to vehicle traction wheels. Provision is made for interrupting the speed signal distribution to the control elements of the transmission mechanism when deceleration of the vehicle exceeds a critical value thus causing the transmission mechanism to downshift to higher torque ratios during rapid deceleration of the vehicle and thereby eliminating any tendency of the vehicle engine to stall or to malfunction as a result of braking of the vehicle.
    Type: Grant
    Filed: June 4, 1980
    Date of Patent: August 18, 1981
    Assignee: Ford Motor Company
    Inventor: Allan S. Leonard
  • Patent number: 4077371
    Abstract: A fuel control system for automobile engines comprises load-sensor means for sensing the load on the engine, and fuel-mixture-ratio control means responsive to the load-sensor means to control the fuel-mixture ratio such as to produce a richer fuel mixture with increased loads, and a leaner fuel mixture with decreased loads.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: March 7, 1978
    Inventor: Mordeki Drori