U.S. patent number 3,739,520 [Application Number 05/267,456] was granted by the patent office on 1973-06-19 for diving toy.
Invention is credited to Samuel E. Hill, Jr..
United States Patent |
3,739,520 |
Hill, Jr. |
June 19, 1973 |
DIVING TOY
Abstract
A diving toy having no moving parts but having a special
bulkhead configuration receiving air from a pump, whereby the toy
will tilt downwardly and sink under influence of loss of said air
and when on the bottom will rise from the bottom to the top, the
motion being continuous as long as the air is pumped to the
interior of the diving toy.
Inventors: |
Hill, Jr.; Samuel E. (Waltham,
MA) |
Family
ID: |
23018851 |
Appl.
No.: |
05/267,456 |
Filed: |
June 29, 1972 |
Current U.S.
Class: |
446/155 |
Current CPC
Class: |
A63H
23/04 (20130101) |
Current International
Class: |
A63H
23/04 (20060101); A63H 23/00 (20060101); A63h
023/04 () |
Field of
Search: |
;46/91-94 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Kinsey; Russell R.
Assistant Examiner: Lever; J. Q.
Claims
I claim:
1. A bladderless aquatic diving toy comprising a relatively
elongated housing including a top and longitudinal sides, an inlet
in the housing for the reception of a gas, a source of gas under
pressure, means to direct the gas to the inlet, an opening adjacent
the top of the housing for the exit of gas, and a gas chamber
located in the housing between the gas exit and the gas inlet, said
chamber comprising a pair of spaced generally transverse wall
members in the housing, one of the walls being longer than the
other in a direction transverse to the elongated axis of the
device, the gas inlet being positioned to direct the gas to the gas
chamber.
2. The diving toy of claim 1 wherein said longer wall extends from
top to bottom of said housing and the shorter wall extends only
part way thereof, the gas collecting in the area between the walls
and depending upon the inclination of the housing, releasing more
or less gas past the shorter wall to the exit.
3. The diving toy of claim 1 including a plurality of gas chambers
and means leading gas to each of said gas chambers.
4. The diving toy of claim 3 including a single source of gas for
both chambers.
5. The diving toy of claim 3 including an individual source of gas
for each chamber.
6. The diving toy of claim 1 including a float adjacent one end of
said housing.
7. The diving toy of claim 1 including a weight adjacent one end of
the housing.
8. The diving toy of claim 1 including a float adjacent each end of
the housing.
Description
BACKGROUND OF THE INVENTION
There have been many diving toys all of which depend upon moving
parts of one kind or another, or on water soluble pellets and the
like, but this invention provides a diving toy of the class
described which has no moving parts of any kind and does not depend
on pellets but only upon a constant supply of air so that it
continuously rises to the surface and sinks to the bottom.
SUMMARY OF THE INVENTION
The diving toy of the present invention may have any reasonable
configuration as for instance it may be in the form of a submarine,
frogman, underwater sled, etc. In any case it comprises a housing
having exterior vanes and an open bottom area which receives the
distal end of the hose from the pump usually found in the home
equarium, to discharge air into the interior of the toy. It also
has an exit for the air at its top surface and inbetween the distal
end of the discharge end of the hose and the exit for the air there
is a special bulkhead arrangement especially provided to enable the
toy to operate as described. Also in some cases certain weights
and/or floats are utilized in order to enhance the action.
The bulkhead arrangement is such that assuming that the toy is
resting horizontally near the surface, the air enters the bulkhead
and is partially lost from the bulkhead through the air exit. The
toy is thereby tilted and tends to move downwardly until it rests
on the bottom in a horizontal position. Thereupon the air collects
in the bulkhead, causing the toy to tilt somewhat upwardly thus
accumulating more air in the bulkhead and causing the toy to rise
to the surface. The toy is horizontal both near the surface and at
the bottom for a brief interval of time but the action of the air
on the bulkhead causes the action recited herein.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a view in elevation partly in section illustrating the
diving toy at the bottom of the tank;
FIG. 2 illustrates the start of the ascent thereof;
FIG. 3 illustrates the toy near the top;
FIG. 4 illustrates the toy resting at the surface;
FIG. 5 illustrates the initial dive from the surface; and
FIG. 6 illustrates the toy just about to rest on the bottom
preparatory to its complete rest as in FIG. 1; and
FIGS. 7 and 8 illustrate multi-compartment modifications.
PREFERRED EMBODIMENT OF THE INVENTION
Although the toy of the present invention may assume any guise or
shape, it is herein illustrated as in the form of a diving
submarine. Referring to FIG. 1 the toy is shown at the bottom of
the tank. The toy comprises a housing generally indicated by the
reference numeral 10. This housing is hollow and it has an open
bottom area at 12 and an exit opening at the top thereof as at 14.
It is also preferably provided with diving vanes one at each side
thereof 16 and such other representations of the submarine,
frogmen, sea sled, or the like that may be desired to be applied
thereto.
In some cases it has been found that a balancing action is enhanced
by means of floats and there may be one at the forward end of the
housing 10, as at 18, and if needed another one at 20 toward the
rear. Furthermore in some cases weights as at 22, 22 may be
provided but it is emphasized that these floats and weights are not
always necessary and as a matter of fact may be built into the
housing 10. The housing may also be made to have just enough
bouyancy to remain at whatever level it is placed, when
inoperative.
There is a cross bulkhead at 24 which seals off the forward portion
of the housing from a compartment forming an air chamber which is
generally indicated at 26. This air chamber is provided by the
bulkhead 24 and a shorter cross bulkhead 28 which is located
between the air exit opening 14 and the forward bulkhead 24.
The distal end 30 of an air hose is inserted through the opening 12
to a position in register with the chamber 26 between bulkheads 24
and 28. This hose of course has the usual pump provided to aerate
the water in an aquarium or from any other source of supply.
With the diving toy in the position shown in FIG. 1, it is resting
on the bottom of the tank or any other vessel, this being well
recognized as a point in the cycle of operation of the diving toy.
The air flow is continuous. As shown, the air accumulates in the
air space compartment, chamber 26, to a certain extent which
causes, see FIG. 2, the entire device to tilt upwardly at the
forward end portion thereof which is herein indicated as at 32 the
diving vane being at the opposite end thereof as shown.
This of course causes increasing amounts of air to be trapped in
the air chamber 26 as illustrated in FIG. 2 and therefore the
diving toy continues to rise due to the buoyancy thereof under the
influence of the continuous charge of air.
Turning now to FIG. 3 it will be seen that this state of affairs
continues until such time as the volume of air in the air chamber
26 becomes too great to continue to be trapped therein because of
the short extent of the rear bulkhead 28; and continuing now to
FIG. 4 the toy levels off adjacent the surface of the water or
other liquid in the tank on an even keel with the air chamber 26
full in this condition. Any excess air derived from the continuous
application of air from the hose continues to escape through the
air exit 14. However this condition only lasts for a moment, and as
shown in FIG. 5, the current of air imparts a slight forward motion
to the toy so that the vanes 16 then come into play and cause the
toy to tilt downwardly at the forward end portion thereof as at 32
in effect dumping most of the air from the air chamber 26 as is
clearly shown in FIG. 5. This condition continues until the toy
comes to rest on the bottom of the tank as in FIG. 6 gradually
settling down back to the FIG. 1 position whereupon the entire
course of events repeats itself.
This condition continues indefinitely as long as the air supply
continues. The forward motion of the toy as shown in FIG. 5 is
normally restrained by the tube 30 so that although the slight
forward motion causing the dive as shown in FIG. 5 occurs
nevertheless the toy is held back to the FIG. 6 position due to the
restraint thereon caused by the hose which can be lightly secured
to the edge of the tank.
As shown in FIG. 7 the device may be modified to utilize a
plurality of air chambers rather than only one. In this case the
distal end of the hose 30' is provided with a cross tube 34 leading
to air chambers 36 and 38 as well as the central air chamber 40
which is equivalent to that at 26. Although FIG. 7 shows three air
chambers of course it is possible to have only two, or four or
more, depending upon the speed of action and size of the toy
designed.
In FIG. 8 there are shown two air chambers 42 and 44 each with its
own supply line 46 and 48. Each supply line can be operated
separately for a variety of effects.
* * * * *