FR685217A - Motor device, operating under the effect of a vacuum and by the action of pressurized oil, for operating doors, barriers, etc. - Google Patents

Motor device, operating under the effect of a vacuum and by the action of pressurized oil, for operating doors, barriers, etc.

Info

Publication number
FR685217A
FR685217A FR685217DA FR685217A FR 685217 A FR685217 A FR 685217A FR 685217D A FR685217D A FR 685217DA FR 685217 A FR685217 A FR 685217A
Authority
FR
France
Prior art keywords
operating
barriers
vacuum
action
effect
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
Other languages
French (fr)
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.)
National Pneumatic Co Inc
Original Assignee
National Pneumatic Co Inc
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 National Pneumatic Co Inc filed Critical National Pneumatic Co Inc
Application granted granted Critical
Publication of FR685217A publication Critical patent/FR685217A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
FR685217D 1929-02-27 1929-11-19 Motor device, operating under the effect of a vacuum and by the action of pressurized oil, for operating doors, barriers, etc. Expired FR685217A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US685217XA 1929-02-27 1929-02-27

Publications (1)

Publication Number Publication Date
FR685217A true FR685217A (en) 1930-07-08

Family

ID=22083107

Family Applications (1)

Application Number Title Priority Date Filing Date
FR685217D Expired FR685217A (en) 1929-02-27 1929-11-19 Motor device, operating under the effect of a vacuum and by the action of pressurized oil, for operating doors, barriers, etc.

Country Status (1)

Country Link
FR (1) FR685217A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2470954A (en) * 1943-06-04 1949-05-24 Edward A Rockwell Pneumatic hydraulic travel control apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2470954A (en) * 1943-06-04 1949-05-24 Edward A Rockwell Pneumatic hydraulic travel control apparatus

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