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United States Patent | 3,638,887 |
Thurston | February 1, 1972 |
The main landing gear for an airplane includes a pair of retractable wheels. The wheels are retracted by hand operation of a lever. The landing gear mechanism also includes a pair of air cylinders and a release device which is operated to release the cylinders when the wheels are lowered in water.
Inventors: | Thurston; David B. (Springvale, ME) |
Assignee: |
Thurston Aircraft Corporation
(Sanford,
ME)
|
Appl. No.: | 04/867,998 |
Filed: | October 21, 1969 |
Current U.S. Class: | 244/102SL |
Current International Class: | B64C 35/00 (20060101); B64c 025/14 () |
Field of Search: | 244/101,102,103,104,100 267/57 280/124.3 |
1442155 | January 1923 | Klemin |
1921992 | August 1933 | Loening |
2196946 | April 1940 | Stone |
2668030 | February 1954 | Smith et al. |
2893661 | July 1959 | Aylor |