Swimming turtle

Claim 2

The combination comprising: A swimming animal body; A floatation means located in said body, for causing said body at the sides thereof To float at a given level in water; Flippers extending out of said body; A power source; A mechanical linkage connected to said power source and said flippers to produce a backward and forward reciprocating stroke; A chamber located in the lower portion of said body, for receiving said mechanical linkage; and, A pivotal connection between said flippers and said linkage having an angular surface for angularly driving said flippers against the water during the drive stroke. 14

Claim 3

The combination of claim 1 further comprising: A linkage connected to said flippers for causing diametrically opposite flippers on said body to undergo similar forward and rearward movements.

Claim 4

The combination of claim 1 further comprising: A linkage connected to said flippers for causing diametrically opposite flippers on said body to undergo dissimilar forward and rearward driving movements.

Claim 5

The combination of claim 1 further comprising: A connection between said flippers and said linkage for causing diametrically opposite flippers on said body to alternately assume driving orientations and recovery orientations.

Claim 6

The combination of claim 1 further comprising: A crank arm for connecting said mechanical linkage to said power source.

Claim 7

The combination as claimed in claim 1 further comprising: A connection between said flippers and said linkage for recovering said flippers in substantially the same plane of movement of said body to prevent drag during the recovery of said flippers.

Claim 8

The combination as claimed in claim 1 wherein said connection between said linkage and said flippers comprises: A connecting member on said flippers; and, An angular surface on said linkage for moving said connecting member thereagainst to provide an angular orientation of said flippers for angular driving movement.

Claim 9

The combination as claimed in claim 7 wherein: Said connecting member is a pin.

Claim 10

The combination as claimed in claim 6 wherein said connection between said flippers and said linkage comprises: A connecting member on said flipper; and, An opening in said linkage having a first angular surface for pushing said connecting member during the recovery of said flipper in substantially the same planar orientation to the movement of said swimming body, and a second angular surface for pushing said connecting member during the driving of said flipper at an angle to the movement of said swimming body.

Claim 11

A water toy comprising: A body having a floatation means in said body for causing said body to float at a substantially given waterline, and having a mechanism chamber positioned in said body at the sides thereof which receives a mechanical linkage and a power source; Four flippers adapted to extend out of said body; Means comprising a mechanical linkage, for causing said flippers to produce a simulated stroke; said mechanical linkage comprising: A front pivot bar adapted to pivot angularly about a substantial center point; A rear pivot bar adapted to pivot angularly about a substantial center point; Said pivot bars having quasi-trapezoidally shaped driving slots at the ends thereof; A linking rod linking opposite ends of said front and rear pivot bars; Means comprising said front and rear pivot bars and said linking rod, for causing diametrically opposite pairs of said flippers to have similar driving movements and similar recovery movements; and, Means comprising said quasi-trapezoidally shaped driving slots for causing said flippers to assume a recovery orientation during said recovery movements.

Claim 12

A water toy comprising: A body having a floatation means in said body for causing said body to float at a substantially given waterline, and having a mechanism chamber positioned in said body at the sides thereof which receives a mechanical linkage and a power source; Four flippers adapted to extend out of said body; Means comprising a mechanical linkage, for causing said flippers to produce a simulated stroke; said mechanical linkage comprising: A front pivot bar adapted to pivot angularly about a substantial center point; A rear pivot bar adapted to pivot angularly about a substantial center point; Said pivot bars having quasi-trapezoidally shaped driving slots at the ends thereof; A linking rod linking opposite ends of said front and rear pivot bars; Means comprising said front and rear pivot bars and said linking rod, for causing diametrically opposite pairs of said flippers to have similar driving movements and similar recovery movements; and, Means comprising said quasi-trapezoidally shaped driving slots for causing said flippers to assume a recovery orientation during said recovery movements.

Claim 13

The combination of claim 10 including means, comprising a crank arm, for connecting said mechanical linkage to a power source.

Claim 14

The combination of claim 11 including means, comprising a connecting rod, for connecting said crank arm to said mechanical linkage.