FR2305622A1 - Perfectionnements apportes aux verins a fluide, en particulier hydraulique - Google Patents
Perfectionnements apportes aux verins a fluide, en particulier hydrauliqueInfo
- Publication number
- FR2305622A1 FR2305622A1 FR7509570A FR7509570A FR2305622A1 FR 2305622 A1 FR2305622 A1 FR 2305622A1 FR 7509570 A FR7509570 A FR 7509570A FR 7509570 A FR7509570 A FR 7509570A FR 2305622 A1 FR2305622 A1 FR 2305622A1
- Authority
- FR
- France
- Prior art keywords
- retraction
- stages
- hydraulic jack
- pressure chambers
- telescopic hydraulic
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubricants (AREA)
- Actuator (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7509570A FR2305622A1 (fr) | 1975-03-24 | 1975-03-24 | Perfectionnements apportes aux verins a fluide, en particulier hydraulique |
ES446101A ES446101A1 (es) | 1975-03-24 | 1976-03-16 | Perfeccionamientos en gatos a fluido, en especial a fluido hidraulico. |
BE165455A BE839906A (fr) | 1975-03-24 | 1976-03-23 | Perfectionnements apportes aux verins a fluide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7509570A FR2305622A1 (fr) | 1975-03-24 | 1975-03-24 | Perfectionnements apportes aux verins a fluide, en particulier hydraulique |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2305622A1 true FR2305622A1 (fr) | 1976-10-22 |
FR2305622B1 FR2305622B1 (fr) | 1978-09-22 |
Family
ID=9153158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7509570A Granted FR2305622A1 (fr) | 1975-03-24 | 1975-03-24 | Perfectionnements apportes aux verins a fluide, en particulier hydraulique |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE839906A (fr) |
ES (1) | ES446101A1 (fr) |
FR (1) | FR2305622A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2758163A1 (fr) * | 1996-12-24 | 1998-07-10 | Gerard Lecomte | Verin a puissance et vitesse variables |
FR2759122A1 (fr) * | 1996-12-24 | 1998-08-07 | Proofunique France Sa | Verin a puissance et vitesse variables |
CN105545872A (zh) * | 2016-02-04 | 2016-05-04 | 柳州双吉机械有限公司 | 双作用伸缩多级油缸 |
CN105545871A (zh) * | 2016-02-04 | 2016-05-04 | 柳州双吉机械有限公司 | 双作用伸缩多级油缸 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE958718C (de) * | 1953-11-11 | 1957-02-21 | Toussaint & Hess Hydr Hebezeug | Mehrstufiger hydraulischer Teleskopkolben mit hydraulischem Rueckzug |
SU177060A1 (ru) * | 1964-02-19 | 1965-12-01 | П. Б. Лендер, К. Е. Ивановский, М. М. Петров , Г. В. пкин | Телескопический гидродомкрат |
GB1026419A (en) * | 1963-12-19 | 1966-04-20 | English Drilling Equipment Com | Improvements in hydraulic pis ton and cylinder combinations |
-
1975
- 1975-03-24 FR FR7509570A patent/FR2305622A1/fr active Granted
-
1976
- 1976-03-16 ES ES446101A patent/ES446101A1/es not_active Expired
- 1976-03-23 BE BE165455A patent/BE839906A/fr unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE958718C (de) * | 1953-11-11 | 1957-02-21 | Toussaint & Hess Hydr Hebezeug | Mehrstufiger hydraulischer Teleskopkolben mit hydraulischem Rueckzug |
GB1026419A (en) * | 1963-12-19 | 1966-04-20 | English Drilling Equipment Com | Improvements in hydraulic pis ton and cylinder combinations |
SU177060A1 (ru) * | 1964-02-19 | 1965-12-01 | П. Б. Лендер, К. Е. Ивановский, М. М. Петров , Г. В. пкин | Телескопический гидродомкрат |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2758163A1 (fr) * | 1996-12-24 | 1998-07-10 | Gerard Lecomte | Verin a puissance et vitesse variables |
FR2759122A1 (fr) * | 1996-12-24 | 1998-08-07 | Proofunique France Sa | Verin a puissance et vitesse variables |
CN105545872A (zh) * | 2016-02-04 | 2016-05-04 | 柳州双吉机械有限公司 | 双作用伸缩多级油缸 |
CN105545871A (zh) * | 2016-02-04 | 2016-05-04 | 柳州双吉机械有限公司 | 双作用伸缩多级油缸 |
Also Published As
Publication number | Publication date |
---|---|
ES446101A1 (es) | 1977-06-01 |
BE839906A (fr) | 1976-07-16 |
FR2305622B1 (fr) | 1978-09-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1126940A (en) | A multi-stage telescopic hydraulic pit prop | |
NL7412444A (nl) | Zuiger van hydraulische hogedruk machine. | |
ES432144A1 (es) | Perfeccionamientos en gatos alzatubos. | |
FR2305622A1 (fr) | Perfectionnements apportes aux verins a fluide, en particulier hydraulique | |
CA943037A (en) | Venting valve for hydraulic jack | |
ES374955A1 (es) | Procedimiento, con su aparato realizador, para controlar laexpansion y la retraccion de un conjunto cilindrico telesco-pico. | |
GB1365026A (en) | Extendable mechanism | |
GB860164A (en) | Improvements relating to hydraulic supporting devices, for example, hydraulic pit-pro | |
GB1045302A (en) | Hydraulically operated roof supports | |
ES282986A1 (es) | Instalación a presión de fluido para accionar selectivamente uno o más martinetes telescópicos especialmente para grúas o similares | |
GB1124096A (en) | Hydraulically operated telescopic props | |
GB1052405A (fr) | ||
FR2252509A1 (en) | Vehicle suspension jack with stabilised extension - working fluid is transferred by pumping action to expansion chamber | |
GB954660A (en) | Hydraulic pit prop | |
GB816247A (en) | Improvements in hydraulically operated props particularly pit props | |
GB1179758A (en) | Hydraulic Mine Support Systems | |
SU464701A1 (ru) | Устройство дл разгрузки гидростойки шахтной крепи | |
GB936483A (en) | Double-acting hydraulic shifting piston and cylinder for coal face conveyors | |
GB956482A (en) | A hydraulic pit prop | |
CA599811A (en) | High pressure hydraulic pump | |
GB972317A (en) | Improvements in or relating to telescopic pit props | |
CA632730A (en) | Manual hydraulic piston pump | |
GB1022442A (en) | Improvements in or relating to load supporting props | |
GB790482A (en) | Thrust mechanism for the guide rails of mining apparatus | |
CA610593A (en) | Variable pressure fluid pump |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |