Bizarre Patents
An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 4338733 | Safety device for crampons, and crampons equipped therewith Safety device for crampons which permits a mountain climber to travel without danger on snow-covered slopes by preventing snow from accumulating below his crampons, would cause him to slip and fall. It comprises a sheet of deformable material which placed... | 07/13/1982 |
| 4302890 | Anti-slipping attachment for shoes An anti-slipping attachment for shoes is disclosed in two embodiments, one for both the sole and heel and the other for the sole alone. The sole portion of each embodiment includes a pair of overlapped plates pivotted together at their rear ends permittin... | 12/01/1981 |
| 4299037 | Boot appliance for improved traction and wear protection A boot appliance for improved traction for attachment to the sole of a boot includes a toe portion, a heel portion and a resilient middle portion for stretchably connecting the toe and heel portions. Both the toe and heel portions include stud tread desig... | 11/10/1981 |
| 4228602 | Ski boot attachment A walking attachment is provided for use with ski boots to permit booted skiers to walk upright on foot. The attachment is formed with a generally flat upper surface substantially coextensive with the length and width of the boot sole, while the bottom su... | 10/21/1980 |
