U.S. patent number 3,923,301 [Application Number 05/507,400] was granted by the patent office on 1975-12-02 for amusement water slide and method.
This patent grant is currently assigned to Water-Boggan, Inc.. Invention is credited to Dwight L. Myers.
United States Patent |
3,923,301 |
Myers |
December 2, 1975 |
Amusement water slide and method
Abstract
A method of adapting a hill to provide an amusement device
comprising a water slide dug into the ground having predetermined
optional length, rate of descent and curvature.
Inventors: |
Myers; Dwight L. (Mocksville,
NC) |
Assignee: |
Water-Boggan, Inc. (Mocksville,
NC)
|
Family
ID: |
24018499 |
Appl.
No.: |
05/507,400 |
Filed: |
September 19, 1974 |
Current U.S.
Class: |
472/88; 104/69;
472/117 |
Current CPC
Class: |
A63G
21/18 (20130101) |
Current International
Class: |
A63G
21/00 (20060101); A63G 21/18 (20060101); A63G
021/18 () |
Field of
Search: |
;272/32,56.5R,56.5SS,1B
;104/59,63,64,67,68,69,70,72,73,86,134,136,139 ;61/2,10,12,14,16
;D34/5E |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Pinkham; Richard C.
Assistant Examiner: Kramer; Arnold W.
Attorney, Agent or Firm: Hunt, Jr.; Clifton T.
Claims
I claim:
1. The method of adapting the topography of a hill to a water slide
amusement device, which method comprises:
a. providing a landing pool of water;
b. providing a starting point on the hill at a higher elevation
than said landing pool;
c. providing a slideway dug into the hill and extending between the
starting point and said landing pool;
1. conforming the slideway to the contour of the land to provide
the desired rate of descent and curvature,
2. introducing water into the slideway at said starting point,
and
d. providing a mat for each rider.
2. A method according to claim 1 which includes the step of
providing at least one major curve preceded by a slight reverse
curve for the purpose of positioning the rider for entry into the
major curve.
3. A method according to claim 1 wherein water is pumped from the
landing pool to the starting point and flows through the slideway
back into the landing pool.
4. A method according to claim 3 wherein the landing pool at the
lower end of the slideway borders and is in communication with a
natural body of water.
5. A water slide amusement device comprising a slideway dug into
the side of a hill and conforming in a sinuous path to the contour
of the hill, to define a predetermined rate of descent, a starting
pool at the top of said slideway and communicating therewith, a
landing pool at the lower end of said slideway and communicating
therewith, said slideway extending from said starting pool to said
landing pool, said starting pool and said landing pool each being
at a lower elevation than their respective junctures with said
slideway, and means for introducing water into the starting pool to
flow down the slideway into the landing pool.
6. A structure according to claim 5 which includes at least one
major curve preceded by a slight reverse curve for positioning
successive persons for entry into the major curve.
7. A structure according to claim 6 wherein the major curve is
about 180.degree. and the reverse curve is about 10.degree..
8. A structure according to claim 6 wherein the outside wall of the
major curve is higher than the inside wall of the major curve.
9. A structure according to claim 5 wherein means are provided for
recycling the water.
Description
BACKGROUND OF THE INVENTION
Water slides have long been known. See, for example, U.S. Pat. No.
824,436 to Pester issued June 26, 1906. Pester teaches an elevated
slideway supported by scaffolding and extending between an
artificial tower at its upper end and a lake at its lower end.
Water is pumped to the top of the tower and allowed to flow down
the slideway. Boats are elevated to the top of the tower for
carrying passengers from the tower down the slideway and into the
lake. See also U.S. Pat. Nos. 1,441,126 issued Jan. 22, 1923, to
Sherman et al; 3,246,892 issued Apr. 19, 1966, to Grudoski; and
3,690,265 issued Sept. 12, 1972, to Horibata.
It is also known to adapt the surface of hilly terrain to a water
slide for amusement purposes. See U.S. Pat. Nos. 2,982,547 issued
May 2, 1961, to Carrier and 3,715,120 issued Feb. 6, 1973, to
Peltola, but in each of these instances the slide member is formed
of flat flexible sheet material lying on the surface of the ground
when in use and readily removable from the ground when not in use.
The slides are fragile and not suitable for commercial use. U.S.
Pat. No. 3,385,599 issued May 28, 1968, to Davis shows in FIG. 5
the application of the Davis roller ride invention to a natural
downwardly sloping contour. The Davis ride, however, is supported
above the ground, does not use water or a separate supporting
surface for each passenger; and Column 3, lines 62-66 of said U.S.
Pat. No. 3,385,599 explain that the height of Davis' supporting
posts 78 "may be varied in accordance with the ground contour so
that the downward slope of the ride is appropriate and is only
generally related to ground contour rather than exactly related to
it."
SUMMARY OF THE INVENTION
According to the invention, maximum utility is made of the contours
or topography of hilly land bordering any body of water including,
without limitation a lake reservoir, stream, ocean, pool, pond or
artificial body of water by forming a trench or slideway in the
ground of sufficient depth to contain and guide a person in prone
or sitting position on a mat within the slideway. The slideway is
of substantially uniform depth and follows the contour of the hill
along a sinuous path from near or at the top of a hill bordering a
lake which will result in the slideway having a predetermined rate
of descent. Preferably, the natural slope of the hill is steep
enough to provide a faster rate of descent than desired in a
straight line. In such case, the trench follows a zig-zag path down
the hill to obtain the desired rate of descent in much the same
manner as a highway built across a steep mountain. Water is
delivered to the starting point at the top of the slideway by any
suitable means such as gravity feed from a higher elevation or
pumping upwardly from the body of water at the lower end of the
slideway. In either event water is allowed to flow through the
slideway in a predetermined volume which may be varied as desired
to provide the requisite coefficient of friction for a person to
traverse the slideway on a mat at a predetermined safe rate of
speed. The path of the slideway is arranged so that curves in the
path have a desired effect on the speed of descent.
A landing pool is preferably provided at the bottom of the slideway
to provide safe deacceleration for successive riders, although the
lake or other body of water will provide equally safe
deacceleration and the slideway may communicate directly with the
lake. In the described embodiment, the landing pool is preferably
spaced above the surface of the lake to provide a water fall from
the landing pool to the lake for the dual purpose of aerating the
water in the lake and providing a pleasing aesthetic
appearance.
The slideway is lined with reinforced concrete or other suitable
material to provide a rigid, sturdy and durable slide conforming to
the topography of the ground throughout its longitudinal
extent.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be more fully understood by reference to the
following detailed description when read in conjunction with the
accompanying drawings, in which:
FIG. 1 is a perspective view of the water slide and its landing
pool; and
FIG. 2 is a fragmentary plan view of a typical curve in the path of
the water slide; and
FIG. 3 is a vertical sectional view taken substantially along line
3--3 in FIG. 2.
DETAILED DESCRIPTION
Referring more specifically to the drawings, the numeral 10 broadly
indicates a trench or slideway dug into the ground and conforming
thereto. The slideway 10 extends downwardly from a starting point
11 near the top of a hill to a landing pool 12 near the bottom of
the hill. The landing pool 12 is spaced above a lake 13.
Water is pumped from the lake to the starting point 11 by a pump 14
which empties into a shallow pool at the starting point 11. The
starting point or pool 11 communicates with the slideway 10 and
water from the pool 11 flows into the slideway 10, down the
slideway to the landing pool 12 and back into the lake 13 from
which it came.
The slideway may follow any desired path from the starting point to
the landing pool commensurate with the desired rate of descent, the
desired degree of curvature, and the desired length of slideway. By
way of example only and without limitation, the overall length of
the slideway may be 400 feet with a vertical fall or drop of 35
feet. The landing pool 12 may be 20 feet long, 8 feet wide, and 3
feet deep. In one actual embodiment, the landing pool overflows
into a 2 acre lake which supplies water to the pump 14 for
elevation to the starting pool 11. The lake 13 receives waste water
from the slide where it settles and is recycled. In the described
embodiment, the slideway 10 is on an average slope of approximately
10.degree. varied at selected points to control the desired rate of
descent. The pump is operated by a 40 h.p. motor and raises the
water 35 feet from the lake to the starting pool 11, but has
sufficient capacity to lift 1800 gallons per minute 60 feet. The
slideway 10 is lined with concrete 4 to 6 inches thick and
reinforced with steel rods. The concrete is finished smooth and
rounded at the bottom on a 2 foot radius. The overall width of the
slideway is 4 feet. The foregoing specific statements are
illustrative only and are not critical to the successful operation
of the invention. All dimensions, ratings and values can be varied
as desired. The depth of water in the slideway is about 2 inches
but again, can be more or less as desired. The more water, the
faster a small person will go, but the amount of water does not
affect the speed of a larger person because he goes faster than the
water and builds up a wall of water in front of him.
As most clearly seen in FIGS. 2 and 3, the curved path of the
slideway 10 includes at least one major curve 14 (about
180.degree.) which is intentionally preceeded by a slight reverse
curve 15 of about 10.degree. for the purpose of positioning the
rider for entry into the larger curve. The major curve 14 has a
four foot wall 16 on the outside of the curve to assist in
retaining the riders within the slideway. The heavier the rider,
the higher he goes up the wall.
A mat 20 is provided for each rider to protect the rider from
abrasions. The mat may be of any desired material including rubber,
fiber, or plastic. The depth and speed of the water are sufficient
to require only a minimum frictional contact between the mat and
the concrete slideway.
It has been found that a 400 foot slide is of sufficient length to
accommodate about 40 people at one time. As each rider enters the
landing pool, he retrieves his mat and exits by way of the steps
21, after which he may return to the starting point 11 and resume
his ride. It has also been found preferable to paint or otherwise
coat the slideway to improve its smoothness, and to reduce as much
as possible its abrasiveness on the mats and riders.
Although specific terms have been employed in describing the
invention, they are by way of illustration only and not for
purposes of limitation; the scope of the invention being defined in
the claims.
* * * * *