ES173147U - Closure for man's hole, especially of tanks made of plastic material. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Closure for man's hole, especially of tanks made of plastic material. (Machine-translation by Google Translate, not legally binding)
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BUCHS METALLWERK AG
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BUCHS METALLWERK AG
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Publication of ES173147UpublicationCriticalpatent/ES173147U/en
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Publication of ES173147YpublicationCriticalpatent/ES173147Y/en
Closure for manhole especially of tanks made of plastic material, with a cover; characterized by the fact that it consists of a tension device in the form of a frame (8) with a u-profile, said frame surrounding the flange (2) of the manhole and the surface on the periphery of the cover (4), side elements (9, 9a) of U-shaped profile forming an open angle and the ends of that of a tension element (11, 12) so that the frame (8) is under tension and press the cover against the flange (2) of the manhole. (Machine-translation by Google Translate, not legally binding)
ES1971173147U1970-09-281971-09-27
CLOSURE FOR MAN HOLES, ESPECIALLY FOR HE-CHOS TANKS MADE OF PLASTIC MATERIAL.
ExpiredES173147Y
(en)