US3393612A - Pressure responsive device - Google Patents

Pressure responsive device Download PDF

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Publication number
US3393612A
US3393612A US549502A US54950266A US3393612A US 3393612 A US3393612 A US 3393612A US 549502 A US549502 A US 549502A US 54950266 A US54950266 A US 54950266A US 3393612 A US3393612 A US 3393612A
Authority
US
United States
Prior art keywords
piston
diaphragm
pressure
cylinder
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US549502A
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English (en)
Inventor
Joseph E Gorgens
Levine Walter Eli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dresser Industries Inc
Original Assignee
Dresser Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dresser Industries Inc filed Critical Dresser Industries Inc
Priority to US549502A priority Critical patent/US3393612A/en
Priority to GB18095/67A priority patent/GB1143153A/en
Priority to DE19671673561 priority patent/DE1673561A1/de
Priority to NL6705869A priority patent/NL150590C/xx
Priority to FR105491A priority patent/FR1522015A/fr
Priority to BE698238D priority patent/BE698238A/xx
Application granted granted Critical
Publication of US3393612A publication Critical patent/US3393612A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/26—Details
    • H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
    • G01L7/16—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
    • G05D16/0638—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane characterised by the form of the obturator
    • G05D16/0641—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane characterised by the form of the obturator the obturator is a membrane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/26—Details
    • H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure
    • H01H35/2614—Means for adjustment of "ON" or "OFF" operating pressure by varying the bias on the pressure sensitive element

Definitions

  • ABSTRACT F THE DISCLOSURE A pressure operable electrical switch including a piston movable in response to a condition pressure applied against a contiguous pressure responsive diaphragm.
  • the piston is maintained directionally aligned by a connected and laterally secured leaf spring and transmits its movement to the switch controller through a coaxial rod aligned in the face of the pistou.
  • Pressure sensitivity ranges are interchangeable by substituting a piston having different effective dimensions.
  • This invention resides in an improved pressure-responsive means for actuating a sensitive control -device such as a switch.
  • a simple form of pressure responsive device comprises a fluid tight housing Ihaving a diaphragm exposed to line pressure at ⁇ one side, and a plunger or the like at the other side of the diaphragm for transmitting pressure-induced displacement of the diaphragm t-o the switch for operation thereof.
  • a first object of this invention is to provide a pressure-responsive device wherein these adverse influences on the accuracy of the instrument are effectively eliminated.
  • a further object of this invention involves the adaptability of a commercial device to operation in response to pressures in a variety of pressure ranges.
  • a device may be required to operate in response to changes in pressure within the range of l to 50 p.s.i., whereas in another application this range may extend up to pressures in the region of 3,000 ⁇ p.s.i.
  • it is ⁇ desirable that provision be made to enable a change of the operating pressure range of the device in the lield by personnel who are not specially trained.
  • this change has necessarily involved practically complete disassembly and the careful substitution of properly matched sets of loose parts, thereby increasing the possibility of errors which can lead to malfunction and reduce reliability.
  • a further object of the invention is to provide a device of the character described, in which the operating pressure response r-ange can be changed very simply, without the necessity of complete disassembly and without handling sets of individual parts.
  • a preassembled unit having a relatively larger piston area is used in a device operating ⁇ at low fluid pressures, and one having a quite small area is used for high pressures.
  • the exterior dimensions -of all such units are the same, so that they are completely interchangeable.
  • the installation of a permanently :assembled unit having a piston size matched to a given operating pressure is all that is involved in adapting a device for service at that pressure, and this installation does not necessitate its complete disassembly.
  • FIGURE 2 is a side view of the structure shown in FIGURE 1;
  • FIGURE 3 is an enlarged axial section through the portion of the mechanism containing the piston and cylin- ⁇ der unit, these parts being shown under a first condition;
  • FIGURE 4 is a view as in FIGURE 3, except showing a second condition wherein pressure has increased;
  • the significant feature of this device resides in an assembled unit comprising a piston 22, a cylinder ring 24, and a spring means 26 in the form of a symmetrical spider-shaped metal element.
  • the cylinder 24 is annular and 'has an L-shaped rim, the radially inwardly directed flange of which presents a llat seating surface 28.
  • the piston 22 is stepped in two diameters, the larger being indicated at 30 and the smaller being indicated at 32. In the radial dimension, there is a clearance c between the piston and cylinder of at least .002 to .050 of an inch to insure complete freedom from contact between these two parts.
  • the spring 26, which is formed of thin gauge spring sheet metal, is stamped in -a form having an annular outer ring 29, symmetrically arranged spokes 27, and ⁇ an inner yhub 31.
  • a thin-flange or rim 33 is staked and deformed over the inner ring 31 to secure the spring and piston in firmly clamped relation.
  • the outer ring 29 is prefer-ably tack-welded or otherwise secured to the cylinder 24.
  • the cylinder 22 is held in centered and spaced relation within the cylinder 24, but is axially movable therein within the limits :illustrated in FIGURE 3.
  • Overlying the lower parts of the piston 22 and cylinder 24 is a fluid irnpervious rubber diaphragm 34, sealed and clamped at its edges by an O-ring 36.
  • the pressure of a fluid medium communicating through the passage 20 ⁇ acts against diaphragm 34.
  • the total force ytransmitted to the piston 22 is a function of the diameter D1 of the piston (the notation l being intended to mean large), as is discussed more fully hereafter.
  • FIGURE 5 there is shown a piston and cylinder unit which is basically the same as that shown in FIGURES 3 and 4, except that the exposed piston diameter Ds of the piston 22' is -much smaller, and the radially inward extent of the flange of the cylinder 24 is correspondingly greater.
  • the same spring 50 may be suitable for use with a variety of different pist-on and cylinder units, but may also be change-d if desired.
  • a unique advantage of the device described is that all that need be done to change the operating pressure range is to remove the screws 18, diaphragm 34 and ring 36, and to substitute another piston and cylinder unit having an exposed piston diameter selected to effect the desired performance. Because the piston 22, cylinder 24 and spring 26 are permanently preassembled, these parts cannot become mismatched and the device is essentially foolproof against error on the part of field personnel. Secondly, because the piston and cylinder do not touch in the course of displacement axially, there is an absence of rubbing contact which can introduce frictional force which would be reflected as errors in operation of the device. In summary, as compared to prior art devices, the device provided according to this invention is more simple, more accurate and more easily adjustable for operation at different pressure ranges.
  • a pressure responsive device comprising a housing, a yieldable diaphragm mounted in said housing, said Ihousing providing a chamber at one side of said diaphragm adapted to be connected to a source of fluid pressure, a piston having a first face engageable with said diaphragm at the other side thereof, symmetrically varranged leaf spring means -connected to and extending laterally from said piston, said connected leaf spring means includes a plurality of spoke-like elements extending radially along the second face of the piston, said spring means being also laterally secured to said housing to directionally maintain the piston for movement responsive to fluid pressure at said one side -of the diaphragm, means resiliently urging said piston against said diaphragm, and means directionally aligned by the second face of said piston for transmitting movement of said piston to a sensitive control device, said piston being spaced from and free of contact with the surface of laterally surrounding structure.
  • a device ⁇ wherein said cylinder ring has an outer face engageable with portions of said other side of the ldiaphragm surrounding the area of engagement with said piston.
  • a device wherein said piston, cylinder ring and spring means are integrally secured together to constitute a unitary removable land interchangeable assembly, said housing including a removable head portion defining a wall of said chamber whereby removal of said head permits removal of said unitary assembly.
  • a pressure responsive device comprising a housing, a yieldable diaphragm mounted in said housing, said housing providing a chamber at one side of said diaphragm adapted to be connected to a source of fluid pressure, a cylinder ring stationarily mounted within said housing against the -other side of said diaphragm and having a central opening therein, a disc-shaped piston movable within -said opening in radially closely spaced and centered relation thereto and contacting said other side of the diaphragm, a leaf spring element connected between the central portion of the piston and the cylinder ring, said element resiliently maintaining said closely spaced and centered relation of the piston and cylinder ring, means resiliently urging said piston against said other side of the diaphragm, and means transmitting movement of said piston to a sensitive control device, said piston, cylinder ring and leaf spring element constituting a unitary removable and interchangeable assembly.
  • a device wherein said cylinder ring has an L-shaped cross-section, the lower side of the radially inwardly directed flange of said L being in contact with the diaphragm and the upper side providing a seating surface on which said piston is bottomed, said piston Ihaving a central portion projecting through the cent-ral opening defined by said flange, the area of said portion being exposed to the pressure force transmitted by said diaphragm.
  • said housing includes a removable section defining the chamber at said one side of the diaphragm and clamping said diaphragm in overlying relation to the piston and cylinder ring assembly, said diaphragm and assembly being removable after removal of said housing section.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Fluid Pressure (AREA)
  • Measuring Fluid Pressure (AREA)
US549502A 1966-05-12 1966-05-12 Pressure responsive device Expired - Lifetime US3393612A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US549502A US3393612A (en) 1966-05-12 1966-05-12 Pressure responsive device
GB18095/67A GB1143153A (en) 1966-05-12 1967-04-19 Pressure responsive device
DE19671673561 DE1673561A1 (de) 1966-05-12 1967-04-25 Auf den Druck eines Steuerdruckmittels ansprechende Steuervorrichtung
NL6705869A NL150590C (2) 1966-05-12 1967-04-26
FR105491A FR1522015A (fr) 1966-05-12 1967-05-08 Dispositif d'actionnement sensible à la pression
BE698238D BE698238A (2) 1966-05-12 1967-05-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US549502A US3393612A (en) 1966-05-12 1966-05-12 Pressure responsive device

Publications (1)

Publication Number Publication Date
US3393612A true US3393612A (en) 1968-07-23

Family

ID=24193268

Family Applications (1)

Application Number Title Priority Date Filing Date
US549502A Expired - Lifetime US3393612A (en) 1966-05-12 1966-05-12 Pressure responsive device

Country Status (6)

Country Link
US (1) US3393612A (2)
BE (1) BE698238A (2)
DE (1) DE1673561A1 (2)
FR (1) FR1522015A (2)
GB (1) GB1143153A (2)
NL (1) NL150590C (2)

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581572A (en) * 1969-06-06 1971-06-01 Rosemount Eng Co Ltd Extruder pressure sensor
US3799037A (en) * 1972-03-14 1974-03-26 H Schmidt Valve attachment
US3898405A (en) * 1974-01-11 1975-08-05 Ernesto Juan Weber Diaphragm pressure switch with balance plate and adjustable springs
US3911238A (en) * 1973-12-06 1975-10-07 Automatic Switch Co Condition responsive control device with capacity for independent adjustment of control points and transducer therefor
US3939758A (en) * 1972-09-20 1976-02-24 Jacques Faisandier Pressure sensor
US3946176A (en) * 1974-12-04 1976-03-23 Dresser Industries, Inc. Differential pressure switch
US4200776A (en) * 1978-11-13 1980-04-29 General Electric Company Control device with grain oriented snap disk
US4287780A (en) * 1978-11-13 1981-09-08 General Electric Company Snap-action member
US4351105A (en) * 1979-08-06 1982-09-28 General Electric Company Method of making a control device
US4569378A (en) * 1982-12-13 1986-02-11 National Instrument Company Inc. Filling machine with tandem-operated diaphragm filling units
FR2576687A1 (fr) * 1985-01-25 1986-08-01 Salou Alain Capteur a seuil de basculement (compatible avec les surpressions)
FR2591797A1 (fr) * 1985-12-13 1987-06-19 Honda Motor Co Ltd Interrupteur commande par une pression
US4882459A (en) * 1987-11-02 1989-11-21 Square D Company Pressure sensitive switch having rugged construction and accurate trip pressure settings
EP0552591A3 (en) * 1992-01-24 1993-11-24 Cesare Gallone Safety pressure sensor, in particular for microswitches
US7658196B2 (en) 2005-02-24 2010-02-09 Ethicon Endo-Surgery, Inc. System and method for determining implanted device orientation
US7775215B2 (en) 2005-02-24 2010-08-17 Ethicon Endo-Surgery, Inc. System and method for determining implanted device positioning and obtaining pressure data
US7775966B2 (en) 2005-02-24 2010-08-17 Ethicon Endo-Surgery, Inc. Non-invasive pressure measurement in a fluid adjustable restrictive device
US7844342B2 (en) 2008-02-07 2010-11-30 Ethicon Endo-Surgery, Inc. Powering implantable restriction systems using light
US20100300863A1 (en) * 2007-05-29 2010-12-02 Norgren Gmbh Pressure switch with an integrated diaphragm and switch
US7927270B2 (en) 2005-02-24 2011-04-19 Ethicon Endo-Surgery, Inc. External mechanical pressure sensor for gastric band pressure measurements
US8016745B2 (en) 2005-02-24 2011-09-13 Ethicon Endo-Surgery, Inc. Monitoring of a food intake restriction device
US8016744B2 (en) 2005-02-24 2011-09-13 Ethicon Endo-Surgery, Inc. External pressure-based gastric band adjustment system and method
US8034065B2 (en) 2008-02-26 2011-10-11 Ethicon Endo-Surgery, Inc. Controlling pressure in adjustable restriction devices
US8057492B2 (en) 2008-02-12 2011-11-15 Ethicon Endo-Surgery, Inc. Automatically adjusting band system with MEMS pump
US8066629B2 (en) 2005-02-24 2011-11-29 Ethicon Endo-Surgery, Inc. Apparatus for adjustment and sensing of gastric band pressure
US8100870B2 (en) 2007-12-14 2012-01-24 Ethicon Endo-Surgery, Inc. Adjustable height gastric restriction devices and methods
US8114345B2 (en) 2008-02-08 2012-02-14 Ethicon Endo-Surgery, Inc. System and method of sterilizing an implantable medical device
US8142452B2 (en) 2007-12-27 2012-03-27 Ethicon Endo-Surgery, Inc. Controlling pressure in adjustable restriction devices
US8152710B2 (en) 2006-04-06 2012-04-10 Ethicon Endo-Surgery, Inc. Physiological parameter analysis for an implantable restriction device and a data logger
US8187162B2 (en) 2008-03-06 2012-05-29 Ethicon Endo-Surgery, Inc. Reorientation port
US8187163B2 (en) 2007-12-10 2012-05-29 Ethicon Endo-Surgery, Inc. Methods for implanting a gastric restriction device
US8192350B2 (en) 2008-01-28 2012-06-05 Ethicon Endo-Surgery, Inc. Methods and devices for measuring impedance in a gastric restriction system
US8221439B2 (en) 2008-02-07 2012-07-17 Ethicon Endo-Surgery, Inc. Powering implantable restriction systems using kinetic motion
US8233995B2 (en) 2008-03-06 2012-07-31 Ethicon Endo-Surgery, Inc. System and method of aligning an implantable antenna
US8337389B2 (en) 2008-01-28 2012-12-25 Ethicon Endo-Surgery, Inc. Methods and devices for diagnosing performance of a gastric restriction system
US8377079B2 (en) 2007-12-27 2013-02-19 Ethicon Endo-Surgery, Inc. Constant force mechanisms for regulating restriction devices
US20130305832A1 (en) * 2012-05-15 2013-11-21 Chrysler Group Llc High pressure visual indicator
US8591532B2 (en) 2008-02-12 2013-11-26 Ethicon Endo-Sugery, Inc. Automatically adjusting band system
US8591395B2 (en) 2008-01-28 2013-11-26 Ethicon Endo-Surgery, Inc. Gastric restriction device data handling devices and methods
US8870742B2 (en) 2006-04-06 2014-10-28 Ethicon Endo-Surgery, Inc. GUI for an implantable restriction device and a data logger

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US19177A (en) * 1858-01-19 Moses m
US2223976A (en) * 1938-12-03 1940-12-03 Gen Electric Pressure responsive device
US2319011A (en) * 1940-08-20 1943-05-11 Smith & Sons Ltd S Resilient diaphragm pressure operated device
GB739398A (en) * 1953-08-31 1955-10-26 Boulton Aircraft Ltd Improvements in or relating to capsules for converting a fluid pressure into a load
FR1146271A (fr) * 1956-03-26 1957-11-08 Applic Mach Motrices Détecteur de pression
US3043929A (en) * 1960-02-25 1962-07-10 George G Guthrie Pressure actuated switch
US3119910A (en) * 1959-10-02 1964-01-28 Jr Daniel T Meisenheimer Pressure switch
US3254573A (en) * 1963-10-03 1966-06-07 Motorola Inc Support for pressure measuring diaphragm

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US19177A (en) * 1858-01-19 Moses m
US2223976A (en) * 1938-12-03 1940-12-03 Gen Electric Pressure responsive device
US2319011A (en) * 1940-08-20 1943-05-11 Smith & Sons Ltd S Resilient diaphragm pressure operated device
GB739398A (en) * 1953-08-31 1955-10-26 Boulton Aircraft Ltd Improvements in or relating to capsules for converting a fluid pressure into a load
FR1146271A (fr) * 1956-03-26 1957-11-08 Applic Mach Motrices Détecteur de pression
US3119910A (en) * 1959-10-02 1964-01-28 Jr Daniel T Meisenheimer Pressure switch
US3043929A (en) * 1960-02-25 1962-07-10 George G Guthrie Pressure actuated switch
US3254573A (en) * 1963-10-03 1966-06-07 Motorola Inc Support for pressure measuring diaphragm

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581572A (en) * 1969-06-06 1971-06-01 Rosemount Eng Co Ltd Extruder pressure sensor
US3799037A (en) * 1972-03-14 1974-03-26 H Schmidt Valve attachment
US3939758A (en) * 1972-09-20 1976-02-24 Jacques Faisandier Pressure sensor
US3911238A (en) * 1973-12-06 1975-10-07 Automatic Switch Co Condition responsive control device with capacity for independent adjustment of control points and transducer therefor
DE2519554A1 (de) * 1973-12-06 1976-11-18 Automatic Switch Co Auf aeussere bedingungen ansprechende steuer- bzw. ueberwachungsvorrichtung und umsetzer bzw. umwandler oder umformer dafuer
US3898405A (en) * 1974-01-11 1975-08-05 Ernesto Juan Weber Diaphragm pressure switch with balance plate and adjustable springs
US3946176A (en) * 1974-12-04 1976-03-23 Dresser Industries, Inc. Differential pressure switch
DE2553327A1 (de) * 1974-12-04 1976-06-10 Dresser Ind Differential-druck-schalter
US4200776A (en) * 1978-11-13 1980-04-29 General Electric Company Control device with grain oriented snap disk
US4287780A (en) * 1978-11-13 1981-09-08 General Electric Company Snap-action member
US4351105A (en) * 1979-08-06 1982-09-28 General Electric Company Method of making a control device
US4569378A (en) * 1982-12-13 1986-02-11 National Instrument Company Inc. Filling machine with tandem-operated diaphragm filling units
FR2576687A1 (fr) * 1985-01-25 1986-08-01 Salou Alain Capteur a seuil de basculement (compatible avec les surpressions)
FR2591797A1 (fr) * 1985-12-13 1987-06-19 Honda Motor Co Ltd Interrupteur commande par une pression
US4759222A (en) * 1985-12-13 1988-07-26 Honda Giken Kogyo Kabushiki Kaisha Pressure responsive switch
US4882459A (en) * 1987-11-02 1989-11-21 Square D Company Pressure sensitive switch having rugged construction and accurate trip pressure settings
EP0552591A3 (en) * 1992-01-24 1993-11-24 Cesare Gallone Safety pressure sensor, in particular for microswitches
US7927270B2 (en) 2005-02-24 2011-04-19 Ethicon Endo-Surgery, Inc. External mechanical pressure sensor for gastric band pressure measurements
US8066629B2 (en) 2005-02-24 2011-11-29 Ethicon Endo-Surgery, Inc. Apparatus for adjustment and sensing of gastric band pressure
US7775966B2 (en) 2005-02-24 2010-08-17 Ethicon Endo-Surgery, Inc. Non-invasive pressure measurement in a fluid adjustable restrictive device
US7775215B2 (en) 2005-02-24 2010-08-17 Ethicon Endo-Surgery, Inc. System and method for determining implanted device positioning and obtaining pressure data
US8016744B2 (en) 2005-02-24 2011-09-13 Ethicon Endo-Surgery, Inc. External pressure-based gastric band adjustment system and method
US7658196B2 (en) 2005-02-24 2010-02-09 Ethicon Endo-Surgery, Inc. System and method for determining implanted device orientation
US8016745B2 (en) 2005-02-24 2011-09-13 Ethicon Endo-Surgery, Inc. Monitoring of a food intake restriction device
US8870742B2 (en) 2006-04-06 2014-10-28 Ethicon Endo-Surgery, Inc. GUI for an implantable restriction device and a data logger
US8152710B2 (en) 2006-04-06 2012-04-10 Ethicon Endo-Surgery, Inc. Physiological parameter analysis for an implantable restriction device and a data logger
US20100300863A1 (en) * 2007-05-29 2010-12-02 Norgren Gmbh Pressure switch with an integrated diaphragm and switch
EP2158599B1 (en) * 2007-05-29 2012-12-05 Norgren GmbH Pressure switch with an integrated diaphragm and switch
US8173918B2 (en) 2007-05-29 2012-05-08 Norgren Gmbh Pressure switch with an integrated diaphragm and switch
US8187163B2 (en) 2007-12-10 2012-05-29 Ethicon Endo-Surgery, Inc. Methods for implanting a gastric restriction device
US8100870B2 (en) 2007-12-14 2012-01-24 Ethicon Endo-Surgery, Inc. Adjustable height gastric restriction devices and methods
US8377079B2 (en) 2007-12-27 2013-02-19 Ethicon Endo-Surgery, Inc. Constant force mechanisms for regulating restriction devices
US8142452B2 (en) 2007-12-27 2012-03-27 Ethicon Endo-Surgery, Inc. Controlling pressure in adjustable restriction devices
US8337389B2 (en) 2008-01-28 2012-12-25 Ethicon Endo-Surgery, Inc. Methods and devices for diagnosing performance of a gastric restriction system
US8192350B2 (en) 2008-01-28 2012-06-05 Ethicon Endo-Surgery, Inc. Methods and devices for measuring impedance in a gastric restriction system
US8591395B2 (en) 2008-01-28 2013-11-26 Ethicon Endo-Surgery, Inc. Gastric restriction device data handling devices and methods
US8221439B2 (en) 2008-02-07 2012-07-17 Ethicon Endo-Surgery, Inc. Powering implantable restriction systems using kinetic motion
US7844342B2 (en) 2008-02-07 2010-11-30 Ethicon Endo-Surgery, Inc. Powering implantable restriction systems using light
US8114345B2 (en) 2008-02-08 2012-02-14 Ethicon Endo-Surgery, Inc. System and method of sterilizing an implantable medical device
US8057492B2 (en) 2008-02-12 2011-11-15 Ethicon Endo-Surgery, Inc. Automatically adjusting band system with MEMS pump
US8591532B2 (en) 2008-02-12 2013-11-26 Ethicon Endo-Sugery, Inc. Automatically adjusting band system
US8034065B2 (en) 2008-02-26 2011-10-11 Ethicon Endo-Surgery, Inc. Controlling pressure in adjustable restriction devices
US8187162B2 (en) 2008-03-06 2012-05-29 Ethicon Endo-Surgery, Inc. Reorientation port
US8233995B2 (en) 2008-03-06 2012-07-31 Ethicon Endo-Surgery, Inc. System and method of aligning an implantable antenna
US20130305832A1 (en) * 2012-05-15 2013-11-21 Chrysler Group Llc High pressure visual indicator
US9032805B2 (en) * 2012-05-15 2015-05-19 Fca Us Llc High pressure visual indicator

Also Published As

Publication number Publication date
BE698238A (2) 1967-11-09
DE1673561A1 (de) 1971-09-23
NL150590C (2) 1977-01-17
GB1143153A (en) 1969-02-19
FR1522015A (fr) 1968-04-19
NL6705869A (2) 1967-11-13

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