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.)
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.)
Saint Gobain SEVA SA
Original Assignee
Societe dEtudes Verrieres Appliquees
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 dEtudes Verrieres AppliqueesfiledCriticalSociete dEtudes Verrieres Appliquees
Priority to ES0243966ApriorityCriticalpatent/ES243966A1/en
Publication of ES243966A1publicationCriticalpatent/ES243966A1/en
Closing And Opening Devices For Wings, And Checks For Wings
(AREA)
Abstract
Improvements introduced in the closing systems for doors and the like, characterized in that a crankcase has been arranged in which a cam integral with the door is included and which rotates around a fixed axis with respect to said crankcase, wheels that serve as a unión between said cam and a frame equally located in the crankcase and movable inside it, as well as also a door return system, generally by means of springs, capable of moving the frame automatically in the direction corresponding to the closing of the door further of a generally hydraulic cushioning device of the cylinder and piston type, which intervenes at the moment of the automatic return of the frame to the position corresponding to the closed door, essentially consisting of the improvement in which the maintenance of the door in opening position is automatically determined. (Machine-translation by Google Translate, not legally binding)
ES0243966A1958-09-051958-09-05Improvements improved in door and similar closure systems (Machine-translation by Google Translate, not legally binding)
ExpiredES243966A1
(en)
Electro-hydraulic door locks for doors, with a plug submitted to the hydraulic pressure during the entire opening process and coupled to the door (Machine-translation by Google Translate, not legally binding)