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Priority to ES97523UpriorityCriticalpatent/ES97523Y/en
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Publication of ES97523YpublicationCriticalpatent/ES97523Y/en
Mattresses And Other Support Structures For Chairs And Beds
(AREA)
Glass Compositions
(AREA)
Abstract
Sight glass for pneumatic mattresses, characterized by the fact that it consists of two transparent, facing windows, one located on the top of the pillow of the mattress and the other on the bottom of the pillow, so that when the mattress and its pillow are swollen and floating in the water, the lower window is constantly submerged in it, and the top window is always above the level of the liquid and at a height that it can not reach, so the vision of the bottom of the water is always constant, without any interruption, and if by any circumstance, mainly as a result of the water being stirred by the swimmers themselves or by the strong waves of the sea, the upper transparent window is wetted, then, due to the convexity of the the surface of the swollen pillow slips out immediately, temporarily interrupted vision is quickly restored. (Machine-translation by Google Translate, not legally binding)
ES97523U1963-02-071963-02-07
Sight glass for air mattresses
ExpiredES97523Y
(en)