FR2421294A1 - Pneumatic or hydraulic actuator for use in restricted space - has pairs of end plates to grip flexible housing with folds fitting one inside another - Google Patents

Pneumatic or hydraulic actuator for use in restricted space - has pairs of end plates to grip flexible housing with folds fitting one inside another

Info

Publication number
FR2421294A1
FR2421294A1 FR7808959A FR7808959A FR2421294A1 FR 2421294 A1 FR2421294 A1 FR 2421294A1 FR 7808959 A FR7808959 A FR 7808959A FR 7808959 A FR7808959 A FR 7808959A FR 2421294 A1 FR2421294 A1 FR 2421294A1
Authority
FR
France
Prior art keywords
pipe
pneumatic
hydraulic actuator
folds
pairs
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
Application number
FR7808959A
Other languages
French (fr)
Other versions
FR2421294B1 (en
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.)
Societe Europeenne de Propulsion SEP SA
Original Assignee
Societe Europeenne de Propulsion SEP 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 Societe Europeenne de Propulsion SEP SA filed Critical Societe Europeenne de Propulsion SEP SA
Priority to FR7808959A priority Critical patent/FR2421294A1/en
Publication of FR2421294A1 publication Critical patent/FR2421294A1/en
Application granted granted Critical
Publication of FR2421294B1 publication Critical patent/FR2421294B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/06—Bellows pistons
    • 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
    • F15B15/10—Characterised by the construction of the motor unit the motor being of diaphragm type

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Actuator (AREA)

Abstract

A pneumatic or hydraulic actuator (1) has a flexible tapered pipe (2) mounted between rigid end covers. Each end of the pipe (2) is wrapped around a ring (4, 5) which is then clamped between two discs (6, 8, 7, 9). The wall (2) of the pipe is initially folded several times along circumferential lines so that the folds (10) fit one inside the other. When fluid at pressure is supplied through the hole (11) the pipe expands longitudinally and the folds are straightened out. The pipe is made of a fibre reinforced material coated with rubber.
FR7808959A 1978-03-28 1978-03-28 Pneumatic or hydraulic actuator for use in restricted space - has pairs of end plates to grip flexible housing with folds fitting one inside another Granted FR2421294A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7808959A FR2421294A1 (en) 1978-03-28 1978-03-28 Pneumatic or hydraulic actuator for use in restricted space - has pairs of end plates to grip flexible housing with folds fitting one inside another

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7808959A FR2421294A1 (en) 1978-03-28 1978-03-28 Pneumatic or hydraulic actuator for use in restricted space - has pairs of end plates to grip flexible housing with folds fitting one inside another

Publications (2)

Publication Number Publication Date
FR2421294A1 true FR2421294A1 (en) 1979-10-26
FR2421294B1 FR2421294B1 (en) 1981-09-11

Family

ID=9206341

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7808959A Granted FR2421294A1 (en) 1978-03-28 1978-03-28 Pneumatic or hydraulic actuator for use in restricted space - has pairs of end plates to grip flexible housing with folds fitting one inside another

Country Status (1)

Country Link
FR (1) FR2421294A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5230276A (en) * 1988-07-23 1993-07-27 Collett Robert G Fluid-driven actuator including an inflatable sac
DE19531097A1 (en) * 1995-08-24 1997-02-27 Festo Kg Fluid-actuated operating device, with net sleeve clamped by ring
FR3017166A1 (en) * 2014-02-06 2015-08-07 Warein LINEAR ACTUATOR WITH FLEXIBLE STRUCTURE AND ARTICULATED ARM HAVING SUCH ACTUATOR
CN107850095A (en) * 2015-07-14 2018-03-27 株式会社普利司通 Fluid hydraulic actuator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2109564A1 (en) * 1971-03-01 1972-09-21 Festo Maschf Stoll G Working cylinder for pneumatic or hydraulic pressure media
DE2219996A1 (en) * 1972-04-24 1973-11-08 Festo Maschf Stoll G WORKING CYLINDERS FOR PNEUMATIC OR HYDRAULIC PRESSURE MEDIA
DE2511687A1 (en) * 1975-03-18 1976-09-30 Festo Maschf Stoll G Bellows for pumping cylinder - has bellow convolutions formed in two sections for each curve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2109564A1 (en) * 1971-03-01 1972-09-21 Festo Maschf Stoll G Working cylinder for pneumatic or hydraulic pressure media
DE2219996A1 (en) * 1972-04-24 1973-11-08 Festo Maschf Stoll G WORKING CYLINDERS FOR PNEUMATIC OR HYDRAULIC PRESSURE MEDIA
DE2511687A1 (en) * 1975-03-18 1976-09-30 Festo Maschf Stoll G Bellows for pumping cylinder - has bellow convolutions formed in two sections for each curve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5230276A (en) * 1988-07-23 1993-07-27 Collett Robert G Fluid-driven actuator including an inflatable sac
DE19531097A1 (en) * 1995-08-24 1997-02-27 Festo Kg Fluid-actuated operating device, with net sleeve clamped by ring
DE19531097C2 (en) * 1995-08-24 1999-06-17 Festo Ag & Co Fluid powered actuator
FR3017166A1 (en) * 2014-02-06 2015-08-07 Warein LINEAR ACTUATOR WITH FLEXIBLE STRUCTURE AND ARTICULATED ARM HAVING SUCH ACTUATOR
WO2015118085A1 (en) * 2014-02-06 2015-08-13 Warein Linear actuator having a flexible structure, and hinged arm comprising such an actuator
CN107850095A (en) * 2015-07-14 2018-03-27 株式会社普利司通 Fluid hydraulic actuator

Also Published As

Publication number Publication date
FR2421294B1 (en) 1981-09-11

Similar Documents

Publication Publication Date Title
GB2042673B (en) Method and apparatus for providing the inner surface of a pipe with a flexible tubular lining material through a liquid resin under pressure
GB2018384A (en) Sheath for forming an internal lining for a conduit and a process for using the sheath
JPS54123729A (en) Flexible reinforced pressure hose and its preparation
ES269690U (en) Internal obturators for pipes
DE68901639D1 (en) CONNECTING DEVICE BETWEEN A HOSE CONNECTING PIECE AND THE RIGID TUBE END OF A PRESSURE CIRCUIT.
EP0288579A4 (en) Lining material of pipe-line.
GB2023296A (en) Improvements in high pressure hose devices for use in mining operations
ES449393A1 (en) Fluid pressure operated duct coupling
ES2005109A6 (en) Pipe for relining underground pipelines.
FR2374582A1 (en) Noise dampening insert for sanitation valves - has cylindrical elastic hose piece insert for damping water noise
FR2421294A1 (en) Pneumatic or hydraulic actuator for use in restricted space - has pairs of end plates to grip flexible housing with folds fitting one inside another
ZA82754B (en) Apparatus for the pressure-tight fastening of a pipe in a pipe-plate with the aid of a pressure fluid
GB2056012A (en) Stopper to Block Circular Pipes Tunnels etc.
ATE78574T1 (en) PROCEDURE FOR REPAIRING UNDERGROUND PIPING.
GB2014702B (en) Method and apparatus for regulating the pressure of fluid flow through a deformable conduit
EP0092827A3 (en) Pressure monitoring device for incorporation in a pipe or hose
GB2117308A (en) Method of breaking loose vulcanized hose from a rigid mandrel
GB884698A (en) Improved tube coupling
SU961606A1 (en) Watering pipeline
RU2013682C1 (en) Device for introducing and applying protective envelope on inner surface of pipe being insulated
JPS5519574A (en) Internal lining of pipe
GB739606A (en) Sprinkling device
GB1161664A (en) Sealing Arrangement for Pipe Joints and Method of Use
GB2064679B (en) Sealing the end of a pipeline sleeve
IT1232705B (en) PROCEDURE AND DEVICE FOR THE RENEWAL OF PIPES AND CONDUCTURES

Legal Events

Date Code Title Description
ST Notification of lapse