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Individual
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Individual
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Priority to ES0029022UpriorityCriticalpatent/ES29022Y/en
Publication of ES29022UpublicationCriticalpatent/ES29022U/en
Application grantedgrantedCritical
Publication of ES29022YpublicationCriticalpatent/ES29022Y/en
Mattresses And Other Support Structures For Chairs And Beds
(AREA)
Abstract
Valve for inflatable hollow objects, such as mattresses, cushions and pneumatic toys and the like, made of rubber sheets or other plastic materials such as polyvinyl chloride, polythene and others, characterized by being constituted by three overlapping membranes, two of which (1, 2), of very flexible material, are joined to each other in all its outline (3) and enclose freely the third membrane (4), a rigid material, being provided one of the flexible membranes (1) and the rigid intermediate (4) of one or more holes (5, 6) coincident with each other, while the other flexible membrane (2) is provided with one or more holes (7) not coincident with them. (Machine-translation by Google Translate, not legally binding)
ES0029022U1951-12-011951-12-01
Valve for inflatable hollow objects
ExpiredES29022Y
(en)