Retractable fin assembly

Buoys – rafts – and aquatic devices – Swimming aid to increase stroke efficiency – Foot attached

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

441 63, A63B 3111

Patent

active

056454600

ABSTRACT:
A retractable fin assembly is disclosed for attachment to the boot of a float tube user. The assembly includes a fin member movable between a fast position projecting below the boot adapted for propelling the float tube user forwardly in the water and a second position adapted for retraction relative to the heel of the boot to permit walking on land by the float tube user. Propulsion vanes are carried by the fin member and have a closed position for providing substantial resistance to the flow of water as the fin member is moved in rearward direction relative to the user. The vanes also have an open position for providing substantially reduced resistance to the flow of water as the fin member is moved in forward direction relative to the user. Finally, a mechanism is provided for attaching the fin member to the boot of a user so that the fin member first position aligns the propulsion vanes at a pre-selected angle of approximately 90.degree. or more between the propulsion vanes and a horizontal plane defined by the boot sole as the fin member projects downwardly from and behind the heel of the boot, and the second position aligns the fin member behind the heel and the leg of the user above the horizontal plane defined by the boot sole.

REFERENCES:
patent: 2343965 (1944-03-01), Fisch
patent: 3081467 (1963-03-01), Ciccotelli
patent: 3084355 (1963-04-01), Ciccotelli
patent: 3268927 (1966-08-01), Markowitz

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Retractable fin assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Retractable fin assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Retractable fin assembly will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2406211

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.