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Priority to ES1970159180UpriorityCriticalpatent/ES159180Y/en
Publication of ES159180UpublicationCriticalpatent/ES159180U/en
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Publication of ES159180YpublicationCriticalpatent/ES159180Y/en
Improved valve device for troughs, of the type object of utility model no. 152,029, characterized in that the valve sphere sits, in its closing arrangement, on an elastic washer housed in a surrounding groove made internally in the area of the body tubular of the device where the section of greater diameter and intermediate, so that said washer protrudes from the upper section to facilitate the support of the sphere, and is flush with the middle section to allow the sliding of the lower actuator stem. (Machine-translation by Google Translate, not legally binding)
ES1970159180U1970-06-061970-06-06
IMPROVED VALVULAR DEVICE FOR OPENERS.
ExpiredES159180Y
(en)