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A beach chair which can be adapted for a woman who is pregnant and wishes to sunbathe in the prone position.
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| Number | Title | Issue Date |
| 3978537 | Swim fin including means for maintaining foot and leg in fixed relationship In a swim fin, members are provided for maintaining a swimmer's foot in fixed angular relationship with respect to the swimmer's leg, particularly during a downward kick or leg extension mode. The ankle is substantially locked in one position, and stress ... | 09/07/1976 |
| 3952352 | Electronic stroke effectiveness sensor for competitive swimmers A bodyworn apparatus that senses and measures the hydrodynamic thrust generated by a swimmer's hands as he strokes his hands through the water. The apparatus consists of pressure sensitive transducers that convert the amount of thrust into electric signal... | 04/27/1976 |
| 3952351 | Swimming aid device The device of the present invention comprises a footwear member such as a sandal, attached to a swimmer's foot by strap or thong means, and a forwardly projecting fin shaped frame member, fixed to the sandal and including a plurality of longitudinally ext... | 04/27/1976 |
| 3940815 | Quick foot release for swim fin A swim fin including a quick-release mechanism associated with the heel strap. The quick-release mechanism includes a lever and a link which are secured together and to the strap in such a way as to define an over center, toggle, lever arrangement whereby... | 03/02/1976 |
