GB1346980A - Fluid-pressure unbalance indicator - Google Patents

Fluid-pressure unbalance indicator

Info

Publication number
GB1346980A
GB1346980A GB378573A GB378573A GB1346980A GB 1346980 A GB1346980 A GB 1346980A GB 378573 A GB378573 A GB 378573A GB 378573 A GB378573 A GB 378573A GB 1346980 A GB1346980 A GB 1346980A
Authority
GB
United Kingdom
Prior art keywords
pressure unbalance
fluid
pressure
fluid pressure
indicating fluid
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
Application number
GB378573A
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.)
DBA SA
Original Assignee
DBA SA
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 DBA SA filed Critical DBA SA
Publication of GB1346980A publication Critical patent/GB1346980A/en
Expired legal-status Critical Current

Links

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
    • H01H35/38—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by piston and cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/226—Devices for monitoring or checking brake systems; Signal devices using devices being responsive to the difference between the fluid pressions in conduits of multiple braking systems
    • 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

Abstract

1346980 Indicating fluid pressure unbalance in dual braking systems SOC ANON DBA 25 Jan 1973 [10 Feb 1972] 3785/73 Heading F2E A device for indicating fluid pressure unbalance between the independent circuits of a dual braking system comprising opposed pistons 16 subjected to the respective circuit pressures and movable under a pressure difference to operate electrical contacts 38 has a resilient system which includes washers 32 bearing on parts of the housing 10 and held apart by a spring 33, the device returning to its balanced position when pressure is restored.
GB378573A 1972-02-10 1973-01-25 Fluid-pressure unbalance indicator Expired GB1346980A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7204463A FR2171647A5 (en) 1972-02-10 1972-02-10

Publications (1)

Publication Number Publication Date
GB1346980A true GB1346980A (en) 1974-02-13

Family

ID=9093278

Family Applications (1)

Application Number Title Priority Date Filing Date
GB378573A Expired GB1346980A (en) 1972-02-10 1973-01-25 Fluid-pressure unbalance indicator

Country Status (7)

Country Link
US (1) US3825706A (en)
JP (1) JPS5547687B2 (en)
DE (1) DE2306028C3 (en)
FR (1) FR2171647A5 (en)
GB (1) GB1346980A (en)
IT (1) IT978966B (en)
SE (1) SE382716B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103223987A (en) * 2013-05-02 2013-07-31 周敏 Switch for hydraulic brake lamp

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1553224A (en) * 1975-06-12 1979-09-26 Girling Ltd Dual hydraulic braking systems for vehicles
JPS5488822A (en) * 1977-12-27 1979-07-14 Nippon Tokushiyu Gijiyutsu Ken Casting method of spherical graphite cast iron without escaping magnesium * gas
US7097748B2 (en) * 2002-04-23 2006-08-29 University Of Massachusetts Electrolyzer pressure equalization system
JPWO2020067476A1 (en) * 2018-09-28 2021-08-30 美津濃株式会社 shoes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2782600A (en) * 1953-05-21 1957-02-26 Orman E Crown Hydraulic brake safety device
GB1009433A (en) * 1961-11-21 1965-11-10 Reginald Thomas Hamilton Improvements relating to hydraulic braking systems
US3411133A (en) * 1965-10-13 1968-11-12 Bendix Corp Master cylinder warning device
DE1961845C3 (en) * 1969-12-10 1978-03-30 Alfred Teves Gmbh, 6000 Frankfurt Warning switch for hydraulic systems with two separate pressure medium circuits
US3634639A (en) * 1970-11-04 1972-01-11 Bendix Corp Brake failure warning device with relatively movable detented contact bars actuatable by different pressure sources

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103223987A (en) * 2013-05-02 2013-07-31 周敏 Switch for hydraulic brake lamp
CN103223987B (en) * 2013-05-02 2016-03-30 重庆电子工程职业学院 Switch for hydraulic brake lamp

Also Published As

Publication number Publication date
FR2171647A5 (en) 1973-09-21
SE382716B (en) 1976-02-09
JPS5547687B2 (en) 1980-12-02
JPS496969A (en) 1974-01-22
DE2306028C3 (en) 1979-01-25
DE2306028B2 (en) 1978-05-18
US3825706A (en) 1974-07-23
DE2306028A1 (en) 1973-08-23
IT978966B (en) 1974-09-20

Similar Documents

Publication Publication Date Title
ES444903A1 (en) Dual circuit brake force regulating device
ES448435A1 (en) Pneumatic springs and other telescopic systems
GB1233049A (en)
GB1346980A (en) Fluid-pressure unbalance indicator
GB1185048A (en) Fluid Pressure Control Valve
ES348977A1 (en) Electrical warning system for vehicular hydraulic dual-brake installations
GB1179347A (en) Fluid Pressure Operated Switch
GB1430859A (en) Pressure imbalance detecting device
GB1312614A (en) Dual hydraulic braking systems for vehicles
GB1253759A (en) A fluid pressure actuated switch
GB1174016A (en) A Fluid Pressure Responsive Switch Device
GB1226300A (en) A warning device for indicating a pressure differential, for example, for hydraulic braking systems
GB1488708A (en) Fluid pressure monitoring device for mechanisms such as hydrostatic fluid bearings
GB1154928A (en) Indicating Device for Dual Hydraulic System
GB1403149A (en) Tandem mastercylinder
GB1306565A (en) Warning device for a dual fluid pressure braking system
GB1260639A (en) Warning device for hydraulic brake systems
GB1177885A (en) Warning Device for a Split Braking System
GB1386059A (en) Master-cylinder for a dual brake circuit comprising an imbalance indicator
GB1357839A (en) Differential pressure responsive switch
GB1298396A (en) Pressure sensitive switch
GB1401603A (en) Fluid pressure failure detector for systems such as braking systems having two independent circuits
GB1007269A (en) Warning devices for motor vehicle brake systems
US3371173A (en) Pressure failure indicating device for brake systems
GB1366232A (en) Braking and pressure imbalance detector

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee