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United States Patent | 3,771,180 |
Tanabe | November 13, 1973 |
A light weight, high buoyancy boat is presented which may be collapsed into a compact body and which is made of corrugated thermo-plastic synthetic resin sheets and method of assembly thereof.
Inventors: | Tanabe; Daisuke (Shinjuku ku, Tokyo, JA) |
Appl. No.: | 05/178,741 |
Filed: | September 8, 1971 |
Feb 15, 1971 [JA] | 46/6362 | |||
Current U.S. Class: | 114/354 ; 446/160 |
Current International Class: | B63B 7/00 (20060101); B63b 005/24 (); B63b 007/04 () |
Field of Search: | 9/2C,2F,6 114/123,66.5 115/39 46/1L,93 |
2028543 | January 1936 | Goldberg et al. |
3111924 | November 1963 | Ecroyd et al. |
3880429 | April 1959 | Henry |
2969551 | January 1961 | Snider |
3060464 | October 1962 | Robison |