Buoys – rafts – and aquatic devices – Rafts – Inflatable
Patent
1984-06-22
1986-12-16
Basinger, Sherman D.
Buoys, rafts, and aquatic devices
Rafts
Inflatable
52 2, 441129, B63C 904
Patent
active
046294333
ABSTRACT:
Inflatable article made of air impervious thermoplastic sheet materials including one or more inflatable units having one or more inflatable valves provided thereon respectively for injecting air into those one or more inflatable units, wherein at least two seals, with one of the seals being a stabilizing seal and being adjacent or touching one of the other seals, are located at selected inner and/or outer portions of the inflatable article with the stabilizing seals providing the selected portions with essentially flat and unruffled constant length seals which remain flat and constant length whether the inflatable article is inflated or deflated thereby permitting another article or articles with constant length portions to be joined to the selected stabilized constant length portions of the sealed inflatable article which would not have been possible if stabilizing had not been effected. A method for making inflatable articles having stabilizing seals that includes inflating the articles before providing the stabilizing seal or seals.
REFERENCES:
patent: 929313 (1909-07-01), Krieger et al.
patent: 2631646 (1953-03-01), Gannon et al.
patent: 2939158 (1960-06-01), Baker
patent: 3056980 (1962-10-01), Holladay
patent: 3363268 (1968-01-01), Friedlander
patent: 3481087 (1969-12-01), Stafford
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