U.S. patent number 3,784,768 [Application Number 05/229,782] was granted by the patent office on 1974-01-08 for submersible touch-operated signaler with fluid drainage passages.
This patent grant is currently assigned to Data Time, Inc.. Invention is credited to Theodore R. Hunt.
United States Patent |
3,784,768 |
Hunt |
January 8, 1974 |
SUBMERSIBLE TOUCH-OPERATED SIGNALER WITH FLUID DRAINAGE
PASSAGES
Abstract
A submersible, touch-operated signaler including at least a pair
of facially confronting, electrically conductive plates. Strips of
resilient, non-conductive material are interposed between the
plates to maintain a substantially preset spacing therebetween and
yieldably resist movement of the plates toward each other. The
strips are disposed in a plurality of spaced rows with vertical
fluid-draining passages therebetween. Rigid strips along adjacent
margins of the plates secure the edges of the plates against
movement away from each other. These rigid strips have openings
extending therethrough which align with the vertical passages
between the resilient strips to provide free fluid flow into and
out of the space between the plates.
Inventors: |
Hunt; Theodore R. (Aloha,
OR) |
Assignee: |
Data Time, Inc. (Portland,
OR)
|
Family
ID: |
22862643 |
Appl.
No.: |
05/229,782 |
Filed: |
February 28, 1972 |
Current U.S.
Class: |
200/52R; 200/86R;
200/306; 200/514; 340/323R; 472/85 |
Current CPC
Class: |
H01H
3/141 (20130101) |
Current International
Class: |
H01H
3/02 (20060101); H01H 3/14 (20060101); H01h
035/00 (); A63k 003/00 () |
Field of
Search: |
;272/4 ;340/273,323
;200/52R,85R,86R,86A,159B ;136/10,63,1R,1M,143 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Pinkham; Richard C.
Assistant Examiner: Stouffer; R. T.
Attorney, Agent or Firm: Stuart; John W.
Claims
It is claimed and desired to secure by letters patent:
1. A submersible touch-operated signaler adapted for removable
mounting on the side of a pool, in operative condition
comprising
at least a pair of substantially upright, facially confronting
planar conducting members having opposing portions which are
movable relatively toward and away from each other to make and
break a conductive connection therebetween, said members bounding a
substantially upright region therebetween,
nonconductive spacer means interposed between said members and
distributed in spaced apart relationship over adjacent faces of the
members, which allows fluid between the members to contact said
adjacent faces, said spacer means yieldably resisting relative
movement thereof toward each other, said spacer means defining a
plurality of spaced-part, substantially vertically extending
passages between the members through which fluid between the
members may flow, and
securing means extending along the edges of said members securing
said edges against movement away from one another, said securing
means in a region extending along the lower edges of said members
having a plurality of openings substantially vertically aligned
with said vertically extending passages which openings freely
accommodate fluid flow into and out of said upright region.
2. The signaler of claim 1, wherein said spacer means comprises a
plurality of elongated generally horizontally extending strips
distributed in plural vertically spaced rows, with each row
containing plural strips, and said passages comprise vertically
aligned gaps between the ends of adjacent strips in the rows.
3. The signaler of claim 2, wherein a strip comprises resilient
material.
4. The signaler of claim 1, wherein said spacer means comprises a
plurality of elongated, horizontally spaced, vertically extending
strips, and said passages comprise vertically disposed spaces
between adjacent strips.
5. A submersible touch-operated signaler in operative condition
comprising
at least a pair of spaced-apart substantially upright, facially
confronting, parallel conducting plates which are movable
relatively toward and away from each other to make and break a
conductive connection therebetween,
nonconductive spacer means interposed between the confronting faces
of said plates, said spacer means comprising a plurality of
elongated strips disposed in a plurality of elongated, vertically
spaced rows which are distributed over said faces and which allow
fluid to contact adjacent faces of the plates, each such row
containing a plurality of generally longitudinally aligned strips
whose adjacent confronting ends are spaced apart from one another
to define gaps in the row, the gaps in said rows defining
vertically extending open passages between said plates through
which fluid between the plates may flow, and
securing means extending along the edges of the plates securing
said edges against movement away from one another, said securing
means in a region extending along the lower edges of said plates
having a plurality of openings substantially vertically aligned
with said vertically extending passages between the plates which
openings freely accommodate fluid flow into and out of the space
between said plates.
6. The signaler of claim 5 which further comprises a third upright
conducting plate in facially confronting relationship with one of
said plates of the previously mentioned pair and on the opposite
side of said one plate from the other plate in the pair, a
plurality of elongated nonconducting strips interposed between said
one and said third plate and disposed in vertically spaced rows
distributed over their confronting faces, said rows being offset
vertically relative to the rows of strips between said
first-mentioned pair of plates, each row including a plurality of
generally horizontally aligned strips whose adjacent confronting
ends are spaced apart to define gaps in the rows defining
vertically extending open passages between said plates which
passages are substantially aligned with said openings in said
securing means.
Description
This invention relates to a submersible touch-operated
signaler.
Various forms of submersible touch-operated signalers have been
produced in the past. These may include signalers placed at the
ends of swimming lanes in a pool, which are touched by swimmers to
signal the completion of laps. Generally, such signalers include a
pair of spaced-apart contact elements which, when pressed into
contact with each other, complete an electrical connection to
produce a signal. In such devices, it may be desirable to provide
resilient, nonconductive spacers between the conductive plates,
which spacers must be forcibly compressed to produce contact
between the members. Further, it is often desirable to provide some
means for maintaining a level of fluid between the contact plates
which is substantially equivalent to the level of fluid surrounding
the signaler. With the fluid level between the plates substantially
equivalent to the level of the fluid surrounding the plates, the
effect of fluid pressure and wave action on the outside of the
plates is minimized.
A difficulty with previously-designed signalers, has been that
often the spacers used between the plates have impeded the flow of
fluid into and out of the space between the plates. This can be a
problem, especially when it is desired to remove the signaler from
a body of fluid. Explaining further such signalers may be rather
large and if they do not drain rapidly, they are extremely heavy,
unwieldy, and difficult to remove from a body of fluid, such as a
swimming pool.
A general object of the invention, therefore, is to provide a
novel, submersible touch-operated signaler, including a pair of
spaced-apart contact members, which is simply and economically
constructed and provides for the rapid flow of fluid into and out
of a region between the contact members.
More specifically, an object of the invention is to provide such a
signaler having a pair of facially confronting, spaced-apart plates
which are yieldably held in spaced-apart relation by a plurality of
spacers secured between the plates. The edges of the plates are
secured against movement away from each other by means extending
along the edges of the plates. The spacers may be strips of
nonconductive material which are so disposed between the plates
that they provide vertically extending passages which substantially
align with openings in the edge-securing means, thus to provide for
the free flow of fluid into and out of the region between the
plates.
These and other objects and advantages will become more fully
apparent as the following description is read in conjunction with
the drawings, wherein:
FIG. 1 is a perspective view of a submersible touch-operated
signaler constructed according to an embodiment of the
invention;
FIG. 2 is an enlarged front view of the signaler, with portions
broken away;
FIG. 3 is an enlarged cross-sectional view taken along the line
3--3 in FIG. 2;
FIG. 4 is an enlarged cross-sectional view taken generally along
the line 4--4 in FIG. 2;
FIG. 5 is an enlarged segment of the lower front portion of the
signaller indicated at 5--5 in FIG. 2; and
FIG. 6 is a view of an upper corner portion of a modified form of
signaler, with portions broken away.
Referring now to the drawings, and first more specifically to FIG.
1, at 10 is indicated generally a submersible touch operated
signaler which may be secured to the wall of a swimming pool at the
end of a swimming lane, or hung on the lip of the pool. The
signaler is such as may be used to produce an electrical signal to
a timing device when touched by a swimmer at the end of a lap.
The signaler includes an upright, substantially rigid back plate
12. The back plate has a rectangular front portion 12a and a top
edge portion 12b which extends rearwardly, substantially normal to
the front portion, as is best seen in FIG. 4. A rectangular,
upright face plate 14, having dimensions which are slightly smaller
than the dimensions of front portion 12a of the back plate, is
spaced forwardly from the back plate and forms a front face for the
signaler. Another, or intermediate, rectangular plate 16, having
substantially the same dimensions as face plate 14, is interposed
between, and spaced from, both of plates 12 and 14. The opposite
ends and bottom edge of plate 16 are coextensive with the opposite
ends and bottom edge of plate 14. The top edge margin of plate 16
extends above and is curved rearwardly over a portion of back plate
12, as is best seen in FIG. 4.
Back plate 12 is formed of a substantially rigid sheet of
conductive, noncorroding material, such as passivated stainless
steel. Face plate 14 and intermediate plate 16 also are formed of a
conductive, noncorroding material, such as passivated stainless
steel, but are of thinner sheet material which may be flexed when
lightly touched. As an example of the thicknesses of steel of which
may be used; the back plate may be formed of material which is
0.050 inch thick, and the face and intermediate plates may be
formed of material which is 0.008 inch thick.
As is best seen in FIGS. 3 and 4, plates 14, 16 are held in a
normally spaced relation by a plurality of strips of nonconductive,
resilient material 20. The strips may be thin strips of urethane
foam tape which have adhesive material on both of their
plate-contacting surfaces. As is best seen in FIG. 2, the strips of
tape are all equal in length, and are disposed in a plurality of
substantially horizontal, vertically spaced rows. The strips in
each row are spaced apart somewhat to form gaps, such as those
indicated generally at 24, between confronting ends of strips. The
strips are so disposed in the region bounded by the plates that the
gaps 24 between their ends are substantially vertically aligned to
provide vertical passages for fluid flow between the top and bottom
of the signaler.
The tape is sufficiently resilient that a light touch on face plate
14 between strips 20 will deflect the plate into contact with plate
16. Upon release of such touch, the plates return to their
spaced-apart relationship.
A similar set of elongated strips of tape 28 are adhesively bonded
between back plate 12 and intermediate plate 16. Strips 28, like
strips 20, may be formed of a urethane foam tape which has an
adhesive material on both of its plate-contacting surfaces. Strips
28 also are disposed in horizontally extending, vertically spaced
rows. Gaps 30 are provided between adjacent strips in a row, and
the gaps in each row are substantially aligned with gaps in
adjoining rows to provide vertical passages extending from top to
bottom in the region between the back and intermediate plates. As
is best seen in FIGS. 2 and 4, the vertical positioning of tapes 28
is staggered with relation to the vertical positioning of tapes
20.
Referring now to FIG. 3, this cross-sectional view illustrates the
manner in which vertical end margins of the plates and the bottom
edges of the plates are secured against movement outwardly and away
from each other. A strip of nonconductive tape 34 is secured
between the edge margins of plate 16 and back plate 12, a strip of
nonconductive tape 36 is secured between the edge margins of plates
14 and 16, and a strip of nonconductive tape 38 is secured to the
outer face of plate 14 adjacent its edge margin. A double thickness
of such tape, indicated generally at 40, is secured to the back
plate contiguous tapes 34, 36.
An elongated substantially rigid, angle member, or securing plate,
44, having angularly disposed legs 44a, 44b, overlies the edge
margins of the plate, and the previously-described tapes. Member 44
is clamped over the edge margins of the plates and the tapes by a
plurality of rivets 48 which extend through leg 44a and back plate
12. The securing plate thus is operable to secure adjacent edge
margins of the face, back and intermediate plates against movement
outwardly and away from each other.
Similar securing plates, indicated generally at 50, 52 in FIG. 2,
and similar tape combinations along the opposite end margins and
lower edge margins of the plates secure the opposite end margins
and bottom edge margins of the plates together. Securing plate 52
extending along the lower edge of the signaler has a plurality of
drain openings 54 extending therethrough which are substantially
vertically aligned with gaps 24, 30 provided between the tape
strips which separate the plates in the signaler (see FIG. 5).
Referring now to FIG. 4, a pair of elongated top touch plates 58,
60 overlie and extend substantially parallel to top portion 12b of
back plate 12. The rear edge of plate 58 is separated from top
portion 12b of the back plate by a single thickness of
nonconductive, resilient tape 62, while the forward edge of plate
58 rests slidably atop the upper edge of intermediate plate 16. The
rear edge of plate 60 is separated from plate 58 by a double
thickness of nonconductive resilient tape 64, while its forward
edge is cantilevered over plate 58. Plates 58, 60 are secured
against movement upwardly and away from top portion 12b by an
elongated securing plate 66, similar to previously described plate
44. Plate 66 is secured to the back plate by rivets, such as that
indicated generally at 68.
A relatively wide strip of neoprene tape 72 extends fully the
length of the face plate of the signaler, with one of its
longitudinal edge margins overlying and secured to plate 60, and
its other longitudinal edge margin secured to the front of face
plate 14. As is seen in FIG. 1, tape strip 72 has holes 74 adjacent
its opposite ends. These holes provide air inlets to the regions
between plates 12, 14, 16 to aid in draining such regions, as will
be explained further below.
An angle-support member 80, having legs 80a, 80b is secured to the
underside of top portion 12b. Leg 80a of the member parallels the
underside of the top portion and leg 80b extends outwardly and
downwardly from the rear edge of the top portion. This support
member provides means for hanging the signaler on the lip at the
edge of a swimming pool. Further, and referring to FIG. 2, bolt
holes 82 are provided adjacent the edge margins of the back plate
for use if it is desired to secure the signaler to the wall of the
pool with bolts.
In operation, back plate 12 and face plate 14 may be electrically
connected to a ground connection and intermediate plate 16 may be
connected to a source of relatively low voltage (in the
neighborhood of 0.6 volts). The signaler is hung on an end wall of
a swimming pool with a major portion of the signaler submerged.
Water in the pool flows into the regions between the plates through
holes 54 in securing plate 52 at the bottom of the signaler and is
distributed through gaps 24, 30 between the strips of tape. Air
displaced by the water escapes through holes 74 in tape strip
72.
A swimmer, on reaching the end of a lap, taps any portion of the
face of plate 14 or the top of the signaler in the region of top
touch plate 60 to produce a signal which may be transmitted to an
automatic timer. Explaining further, a swimmer's touch on face
plate 14 either deflects the face plate whereby it touches
intermediate plate 16 to produce an electrical connection
therebetween, or such touch causes intermediate plate 16 to deflect
and electrically connect with back plate 12. A touch on top touch
plate 60 deflects the same downwardly and against touch plate 58 to
produce an electrical connection therebetween.
When it is desired to remove the signaler from the pool, it is
lifted from the water, at which time fluid which has infiltrated
the regions between the plates flows rapidly therefrom through the
aligned fluid passages provided by gaps 24 and 30 between the tapes
and through openings 54 in the bottom securing plate. As the water
drains from the regions between the plates, air enters through
holes 74 in tape strip 72 to promote such draining. This rapid
discharge of fluid from the interior of the signaler quickly
reduces the weight which must be handled, making it easier to
remove from the pool.
In FIG. 6 an upper corner portion of a modified version of the
invention is illustrated. In this version a plurality of
horizontally spaced, elongated, vertical strips of non-conductive
tape 100 are interposed between back plate 12 and intermediate
plate 16. Face plate 14 similarly is spaced from intermediate plate
16 by a plurality of horizontally spaced, elongated, vertical
strips of non-conductive tape 102. The vertical spaces between
adjacent strips of tape provide vertical passages for fluid flow
from the region bounded by the plate in the signaler.
While a preferred and a modified embodiment of the invention have
been described herein, it should be obvious to those skilled in the
art that further variations and modifications are possible without
departing from the spirit of the invention.
* * * * *