GB1188944A - Improvements in or relating to Level Indicating Means for Hydraulic Reservoirs. - Google Patents

Improvements in or relating to Level Indicating Means for Hydraulic Reservoirs.

Info

Publication number
GB1188944A
GB1188944A GB4120766A GB4120766A GB1188944A GB 1188944 A GB1188944 A GB 1188944A GB 4120766 A GB4120766 A GB 4120766A GB 4120766 A GB4120766 A GB 4120766A GB 1188944 A GB1188944 A GB 1188944A
Authority
GB
United Kingdom
Prior art keywords
bellows
level
stem
fluid level
reservoir
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
GB4120766A
Inventor
David Anthony Harries
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.)
Girling Ltd
Original Assignee
Girling Ltd
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 Girling Ltd filed Critical Girling Ltd
Priority to GB4120766A priority Critical patent/GB1188944A/en
Publication of GB1188944A publication Critical patent/GB1188944A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B60T17/225—Devices for monitoring or checking brake systems; Signal devices brake fluid level indicators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
    • G01F23/18—Indicating, recording or alarm devices actuated electrically
    • G01F23/185—Indicating, recording or alarm devices actuated electrically for discrete levels

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Abstract

1,188,944. Liquid level switches. GIRLING Ltd. 4 Sept., 1967 [15 Sept., 1966], No. 41207/66. Heading H1N. [Also in Divisions F2 and G1] A warning lamp is illuminated signifying that fluid level in a master cylinder reservoir for a vehicle braking system is at (or below) a predetermined minimum level, when as shown, Fig. 1, stationary contacts 31, 32 on the reservoir casing are bridged by a movable contact 36 carried by a stem 35 which is movable with a flexible moisture barrier in the form of a bellows 10. Vent holes in the reservoir cap admit atmospheric pressure to the bellows interior and the bellows bottom wall follows the fluid level. In an embodiment, Fig. 3 (not shown), the movable contact is left in engagement with the fixed contacts when the fluid level and hence the bellows and stem, falls below the minimum safe level, and the lower end of the stem is integral with a float forming the bottom wall of the bellows.
GB4120766A 1966-09-15 1966-09-15 Improvements in or relating to Level Indicating Means for Hydraulic Reservoirs. Expired GB1188944A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4120766A GB1188944A (en) 1966-09-15 1966-09-15 Improvements in or relating to Level Indicating Means for Hydraulic Reservoirs.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4120766A GB1188944A (en) 1966-09-15 1966-09-15 Improvements in or relating to Level Indicating Means for Hydraulic Reservoirs.

Publications (1)

Publication Number Publication Date
GB1188944A true GB1188944A (en) 1970-04-22

Family

ID=10418614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4120766A Expired GB1188944A (en) 1966-09-15 1966-09-15 Improvements in or relating to Level Indicating Means for Hydraulic Reservoirs.

Country Status (1)

Country Link
GB (1) GB1188944A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164107A (en) * 1984-07-05 1986-03-12 Nippon Air Brake Co Hydraulic reservoir with fluid level detector
GB2353341A (en) * 1999-08-16 2001-02-21 Luk Lamellen & Kupplungsbau Liquid reservoir
FR2824123A1 (en) * 2001-04-26 2002-10-31 Bosch Gmbh Robert HYDRAULIC LIQUID TANK, ESPECIALLY A BRAKE CIRCUIT
DE102018132404A1 (en) 2018-12-17 2020-06-18 Schaeffler Technologies AG & Co. KG Reservoir for a hydraulic system, reservoir cover for such a reservoir and corresponding hydraulic system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164107A (en) * 1984-07-05 1986-03-12 Nippon Air Brake Co Hydraulic reservoir with fluid level detector
GB2353341A (en) * 1999-08-16 2001-02-21 Luk Lamellen & Kupplungsbau Liquid reservoir
ES2168980A1 (en) * 1999-08-16 2002-06-16 Luk Lamellen & Kupplungsbau Liquid reservoir
GB2353341B (en) * 1999-08-16 2003-09-17 Luk Lamellen & Kupplungsbau Liquid reservoir
FR2824123A1 (en) * 2001-04-26 2002-10-31 Bosch Gmbh Robert HYDRAULIC LIQUID TANK, ESPECIALLY A BRAKE CIRCUIT
WO2002088582A1 (en) * 2001-04-26 2002-11-07 Robert Bosch Gmbh Hydraulic fluid tank, in particular for braking circuit
DE102018132404A1 (en) 2018-12-17 2020-06-18 Schaeffler Technologies AG & Co. KG Reservoir for a hydraulic system, reservoir cover for such a reservoir and corresponding hydraulic system

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee