CH494900A - Hydraulic cylinder with several pistons whose stroke paths add up - Google Patents

Hydraulic cylinder with several pistons whose stroke paths add up

Info

Publication number
CH494900A
CH494900A CH878869A CH878869A CH494900A CH 494900 A CH494900 A CH 494900A CH 878869 A CH878869 A CH 878869A CH 878869 A CH878869 A CH 878869A CH 494900 A CH494900 A CH 494900A
Authority
CH
Switzerland
Prior art keywords
hydraulic cylinder
several pistons
whose stroke
stroke paths
pistons whose
Prior art date
Application number
CH878869A
Other languages
German (de)
Inventor
Ward Richard
Original Assignee
Park & Co Forgemasters Ltd Wm
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 Park & Co Forgemasters Ltd Wm filed Critical Park & Co Forgemasters Ltd Wm
Publication of CH494900A publication Critical patent/CH494900A/en

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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F15B11/12—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action
    • F15B11/121—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions
    • F15B11/125—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor providing distinct intermediate positions; with step-by-step action providing distinct intermediate positions by means of digital actuators, i.e. actuators in which the total stroke is the sum of individual strokes
    • 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
    • F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
CH878869A 1968-06-14 1969-06-10 Hydraulic cylinder with several pistons whose stroke paths add up CH494900A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28666/68A GB1208512A (en) 1968-06-14 1968-06-14 Improvements in or relating to multiple piston incremental rams

Publications (1)

Publication Number Publication Date
CH494900A true CH494900A (en) 1970-08-15

Family

ID=10279213

Family Applications (1)

Application Number Title Priority Date Filing Date
CH878869A CH494900A (en) 1968-06-14 1969-06-10 Hydraulic cylinder with several pistons whose stroke paths add up

Country Status (6)

Country Link
US (1) US3618474A (en)
CH (1) CH494900A (en)
DE (1) DE1929014B2 (en)
FR (1) FR2010878A1 (en)
GB (1) GB1208512A (en)
NL (1) NL6909031A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6546840B1 (en) * 2001-11-27 2003-04-15 Jim O. Cruey Linearly reciprocating pneumatic piston

Also Published As

Publication number Publication date
DE1929014A1 (en) 1969-12-18
DE1929014B2 (en) 1972-11-09
FR2010878A1 (en) 1970-02-20
NL6909031A (en) 1969-12-16
GB1208512A (en) 1970-10-14
US3618474A (en) 1971-11-09

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Legal Events

Date Code Title Description
PL Patent ceased