FR2450729B1 - - Google Patents

Info

Publication number: FR2450729B1
Authority: FR; France
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

FR8004909A

Other versions

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.)

Continental Teves AG and Co oHG

Original Assignee

Alfred Teves GmbH

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.)

1979-03-05

Filing date

1980-03-05

Publication date

1983-12-30

1980-03-05 Application filed by Alfred Teves GmbH filed Critical Alfred Teves GmbH

1980-10-03 Publication of FR2450729A1 publication Critical patent/FR2450729A1/fr

1983-12-30 Application granted granted Critical

1983-12-30 Publication of FR2450729B1 publication Critical patent/FR2450729B1/fr

Status Granted legal-status Critical Current

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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
- B60T13/563—Vacuum systems indirect, i.e. vacuum booster units with multiple booster units, e.g. tandem booster units

Landscapes

Engineering & Computer Science (AREA)
Transportation (AREA)
Mechanical Engineering (AREA)
Braking Systems And Boosters (AREA)
Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

FR8004909A 1979-03-05 1980-03-05 Amplificateur a depression a deux circuits Granted FR2450729A1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19792908481 DE2908481A1 (de)	1979-03-05	1979-03-05	Zweikreisiger vakuumverstaerker

Publications (2)

Publication Number	Publication Date
FR2450729A1 FR2450729A1 (fr)	1980-10-03
FR2450729B1 true FR2450729B1 (fr)	1983-12-30

Family

ID=6064495

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR8004909A Granted FR2450729A1 (fr)	1979-03-05	1980-03-05	Amplificateur a depression a deux circuits

Country Status (10)

Country	Link
US (1)	US4309935A (fr)
JP (1)	JPS55160650A (fr)
BR (1)	BR8001271A (fr)
DE (1)	DE2908481A1 (fr)
ES (1)	ES249118Y (fr)
FR (1)	FR2450729A1 (fr)
GB (1)	GB2044868B (fr)
IT (1)	IT1130286B (fr)
SE (1)	SE443612B (fr)
ZA (1)	ZA801024B (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4399736A (en) *	1981-02-23	1983-08-23	General Motors Corporation	Vacuum suspended brake booster control valve
DE3303577A1 (de) *	1983-02-03	1984-08-09	Alfred Teves Gmbh, 6000 Frankfurt	Bremskraftverstaerker fuer ein kraftfahrzeug
US4608825A (en) *	1983-10-07	1986-09-02	Fail Safe Brake Corporation	Automatic brake actuator with controlled release
JPS6095146A (ja) *	1983-10-31	1985-05-28	Nissan Motor Co Ltd	負圧アクチユエ−タの誤作動防止装置
DE3444828A1 (de) *	1984-12-08	1986-06-12	Robert Bosch Gmbh, 7000 Stuttgart	Bremskraftverstaerker
DE3444829A1 (de) *	1984-12-08	1986-06-12	Robert Bosch Gmbh, 7000 Stuttgart	Bremskraftverstaerker
DE3744012A1 (de) *	1987-12-24	1989-07-06	Teves Gmbh Alfred	Tandembremskraftverstaerker fuer kraftfahrzeuge
JPH02114056A (ja) *	1988-10-24	1990-04-26	Jidosha Kiki Co Ltd	ブレーキ倍力装置
US5233911A (en) *	1992-02-28	1993-08-10	Allied-Signal Inc.	Tandem brake booster
US5476029A (en) *	1993-09-20	1995-12-19	Tokico Ltd.	Pneumatic booster having vacuum and pressurized air sources
JP6330730B2 (ja) *	2015-05-29	2018-05-30	株式会社アドヴィックス	負圧式倍力装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3096689A (en) *	1961-01-30	1963-07-09	Bendix Corp	Simplified tandem diaphragm fluid pressure motor
DE1240419B (de) *	1961-05-24	1967-05-11	Midland Ross Corp	Einrichtung zur Erzeugung der Rueckstellkraft bei Servobremseinrichtungen, insbesondere fuer Kraftfahrzeuge
FR1459480A (fr) *	1964-12-07	1966-04-29	Bendix Corp	Servomoteur à pression de fluide
US3411414A (en) *	1966-06-27	1968-11-19	Midland Ross Corp	Servomotor requiring minimum movement of actuator
US3482485A (en) *	1968-02-15	1969-12-09	Bendix Corp	Fluid pressure servomotor
GB1221452A (en) *	1968-06-04	1971-02-03	Automotive Prod Co Ltd	Improvements in or relating to air servo devices
US3603208A (en) *	1969-06-30	1971-09-07	Bendix Corp	Servomotor having a one-piece center plate
GB1281596A (en) *	1969-09-06	1972-07-12	Girling Ltd	Improvements in and relating to servo motors, especially for vehicle braking systems
US3813992A (en) *	1972-03-29	1974-06-04	C Leroy	Dual fluid pressure motor
US4007664A (en) *	1975-09-26	1977-02-15	Midland-Ross Corporation	Hydraulic booster

1979
- 1979-03-05 DE DE19792908481 patent/DE2908481A1/de not_active Ceased
1980
- 1980-02-19 GB GB8005613A patent/GB2044868B/en not_active Expired
- 1980-02-19 US US06/122,096 patent/US4309935A/en not_active Expired - Lifetime
- 1980-02-22 ZA ZA00801024A patent/ZA801024B/xx unknown
- 1980-03-03 SE SE8001626A patent/SE443612B/sv not_active IP Right Cessation
- 1980-03-04 BR BR8001271A patent/BR8001271A/pt unknown
- 1980-03-05 JP JP2680280A patent/JPS55160650A/ja active Pending
- 1980-03-05 ES ES1980249118U patent/ES249118Y/es not_active Expired
- 1980-03-05 IT IT20352/80A patent/IT1130286B/it active
- 1980-03-05 FR FR8004909A patent/FR2450729A1/fr active Granted

Also Published As

Publication number	Publication date
FR2450729A1 (fr)	1980-10-03
IT1130286B (it)	1986-06-11
ZA801024B (en)	1981-02-25
ES249118U (es)	1980-09-01
DE2908481A1 (de)	1980-09-11
BR8001271A (pt)	1980-11-04
GB2044868B (en)	1982-11-24
JPS55160650A (en)	1980-12-13
US4309935A (en)	1982-01-12
GB2044868A (en)	1980-10-22
ES249118Y (es)	1981-02-16
SE443612B (sv)	1986-03-03
SE8001626L (sv)	1980-09-06
IT8020352A0 (it)	1980-03-05

Publication	Publication Date	Title
FR2448130B1 (fr)	1982-05-28
BR8002583A (fr)	1980-12-09
BR8006808A (fr)	1981-04-28
FR2450385B2 (fr)	1983-07-18
FR2450305B1 (fr)	1982-02-19
FR2450729B1 (fr)	1983-12-30
DE2934474C2 (fr)	1981-06-11
FR2446656B1 (fr)	1982-03-26
FR2448315B1 (fr)	1982-02-26
FR2448771B2 (fr)	1982-06-04
DE3018420C2 (fr)	1982-09-30
FR2450541B1 (fr)	1984-05-25
AU79200S (fr)	1980-09-25
AU79557S (fr)	1981-06-03
AU78389S (fr)	1980-09-29
AU77763S (fr)	1980-09-15
AU78391S (fr)	1980-11-26
AU78386S (fr)	1981-01-23
AU78569S (fr)	1980-05-19
AU78385S (fr)	1980-11-21
BR5901094U (fr)	1981-02-17
AU78390S (fr)	1980-06-23
AU79558S (fr)	1981-09-11
AU79559S (fr)	1981-09-11
AU78271S (fr)	1980-02-12

Legal Events

Date	Code	Title	Description
1989-01-27	ST	Notification of lapse