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.)
Talleres Guerin SA
Original Assignee
Talleres Guerin 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 Talleres Guerin SAfiledCriticalTalleres Guerin SA
Priority to ES0242552ApriorityCriticalpatent/ES242552A3/en
Publication of ES242552A3publicationCriticalpatent/ES242552A3/en
Apparatus for the automatic opening and closing of doors, essentially characterized by the existence of a compressor whose body constitutes a cylinder of two different diameters, moving inside the cylinder a pair of pistons of different diameter, rigidly coupled together by a rod, having provided at the end of the cylinder having smaller diameter, an intermittent entry of air under pressure acting on the piston that moves on said sector of the cylinder, and at the other end of the said cylinder that is larger diameter, a intermittent entry of air under pressure, regulated by a valve, acting on the piston that moves in said sector of the cylinder and, in that the rod that couples the pair of pistons, is articulated to a rocker that, when oscillating, driven by the pistons, acts on the pair of carrier levers of the axes of the pair of leaves of the door, making them oscillate together with said ex is, for the opening and closing of the door. (Machine-translation by Google Translate, not legally binding)
ES0242552A1958-05-291958-05-29Apparatus for the opening and automatic closure of doors. (Machine-translation by Google Translate, not legally binding)
ExpiredES242552A3
(en)
A new rotary double acting hydraulic shock absorber with oil loss compression chamber for cars (Machine-translation by Google Translate, not legally binding)
Improvements in refrigerating chambers and more in particular in the mechanisms that determine the hermetic closure of their doors (Machine-translation by Google Translate, not legally binding)