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.)
ELMA
Original Assignee
ELMA
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 ELMAfiledCriticalELMA
Priority to ES123330UpriorityCriticalpatent/ES123330Y/en
Publication of ES123330UpublicationCriticalpatent/ES123330U/en
Application grantedgrantedCritical
Publication of ES123330YpublicationCriticalpatent/ES123330Y/en
Closing And Opening Devices For Wings, And Checks For Wings
(AREA)
Abstract
Closes automatic doors characterized in that it is essentially constituted by a rack and a lever which when opening the door has to turn to a pinion which are engaged with a rack piston that compresses a spring causing the oil filling a chamber of the apparatus pass freely through a hole to another chamber and advancing the aforementioned rack piston this will compress the oil so that a ball will close the passage hole thereof forcing this oil to pass inside the spring chamber through two passages independent thereby constituting a two-stroke speed adjustment that is graduated by means of a screw; the actual closing doors can be used indistinctly for left and right doors by simply changing the position of their lever and the closing cap (Machine-translation by Google Translate, not legally binding)
ES123330U1966-07-151966-07-15
AUTOMATIC DOOR CLOSERS.
ExpiredES123330Y
(en)