U.S. patent application number 11/983463 was filed with the patent office on 2009-05-14 for card delivery shoe and methods of fabricating the card delivery shoe.
This patent application is currently assigned to Shuffle Master, Inc.. Invention is credited to Sion D. Walsh.
Application Number | 20090121429 11/983463 |
Document ID | / |
Family ID | 40622985 |
Filed Date | 2009-05-14 |
United States Patent
Application |
20090121429 |
Kind Code |
A1 |
Walsh; Sion D. |
May 14, 2009 |
Card delivery shoe and methods of fabricating the card delivery
shoe
Abstract
A playing card delivery shoe for a casino table card game and
method of fabricating such shoe. The shoe has an adjustable limiter
and removable protective cover. The position of the card feed
limiter sets a gap size of an opening though which cards pass. The
card feed limiter may have openings therein through which a card
reading sensor can be accessed. The card reading sensor can be
accessed without substantial disassembly of the shoe. The removable
protective cover provides a protective shield for the card reading
sensor.
Inventors: |
Walsh; Sion D.; (Las Vegas,
NV) |
Correspondence
Address: |
Dickstein Shapiro LLP
1825 Eye Street NW
Washington
DC
20006
US
|
Assignee: |
Shuffle Master, Inc.
|
Family ID: |
40622985 |
Appl. No.: |
11/983463 |
Filed: |
November 9, 2007 |
Current U.S.
Class: |
273/149R ;
221/45; 29/525.01 |
Current CPC
Class: |
Y10T 29/49947 20150115;
A63F 2009/2419 20130101; A63F 1/14 20130101 |
Class at
Publication: |
273/149.R ;
221/45; 29/525.01 |
International
Class: |
A63F 1/14 20060101
A63F001/14 |
Claims
1. An apparatus for dispensing playing cards, comprising: a
container configured to store cards for delivery for a card game; a
barrier plate, said barrier plate providing access to a
card-reading sensor without removal of the barrier plate and being
adjustable with respect to a base plate; and a base plate, wherein
the base plate and barrier plate define an output slot providing a
gap through which cards can be slidably removed from the container,
the output slot gap being selectively adjustable to accommodate
cards of different thicknesses.
2. The apparatus of claim 1, wherein the card-reading sensor is
positioned within the base plate for scanning a card as the card is
slid through the output slot.
3. The apparatus of claim 1, wherein the barrier plate is
adjustably secured to the container with at least one fastener.
4. The apparatus of claim 2, wherein the card-reading sensor is
configured to identify the suit and rank of cards removed from the
container.
5. The apparatus of claim 3, wherein the at least one fastener
secures the barrier plate to the container by engaging the
container through a respective slot in the barrier plate and
engaging the barrier plate at an area at the slot.
6. The apparatus of claim 5, wherein the at least one fastener is a
screw.
7. The apparatus of claim 3, wherein the barrier plate is
adjustable relative to the container to change the size of the gap
of the output slot.
8. The apparatus of claim 7, wherein the position of the at least
one fastener relative to the respective slot of the barrier plate
determines the size of the output slot gap.
9. The apparatus of claim 3, further comprising a protective cover
which is detachably secured adjacent to said barrier.
10. The apparatus of claim 9, where in the protective cover is
detachably secured to the barrier by one or more magnets.
11. The apparatus of claim 9, wherein the protective cover covers
the card-reading sensor.
12. A card shoe, comprising: a body, configured to hold a plurality
of playing cards; the body having a lower surface for supporting
cards and an exit end; at least one sensor in the lower surface
proximate an end of the body; a card feed limiter plate proximate
the end of the body, said card feed limiter plate comprising a
plurality of elongated slots and being adjustably attached to the
body by a plurality of fasteners respectively passing through said
slots for adjustably fixing said limiter to said body, the card
feed limiter plate further comprising an access opening providing
access to the at least one sensor; and an opening between the body
and card feed limiter plate providing a gap through which a card
can be slid, said opening having a gap dimension defined by the
positioning of the card feed limiter relative to said body.
13. The card shoe of claim 12, wherein the card feed limiter can be
moved with respect to the body and held in place by said fasteners
to define the size of the gap.
14. The card shoe of claim 13, wherein the card feed limiter can be
securely affixed to the body by the fasteners.
15. The card shoe of claim 12, further comprising a protective
cover plate detachably secured over the card feed limiter
plate.
16. The card shoe of claim 15, wherein the protective cover plate
is secured by at least one magnet.
17. The card shoe of claim 15, wherein the protective cover plate
is secured by a hook and loop fastener.
18. The card shoe of claim 15, wherein the at least one sensor
comprises an optical sensor and the protective cover plate covers
the optical sensor when secured to the card feed limiter plate.
19. The card shoe of claim 18, wherein the optical sensor is a
contact image sensor.
20. A method of fabricating an adjustable a card dealing shoe,
comprising: forming a container comprising a base plate and
configured to store cards for delivery for a card game; providing
at least one sensor within the base plate; and attaching a barrier
plate to the container so that said barrier plate provides access
to the at least one sensor without removal of the barrier plate,
wherein the base plate and barrier plate define an output slot
providing a gap proximate the at least one sensor and through which
cards can be slidably removed from the container, the output slot
gap being selectively adjustable to accommodate cards of different
thicknesses.
21. The method of claim 20, further comprising attaching the
barrier plate to the container by securing fasteners through
elongated slots in said barrier plate.
22. The method of claim 20, further comprising forming an opening
in the barrier plate so as to provide the access to an optical
sensor.
23. The method of claim 20, further comprising removably attaching
a cover plate over the barrier plate, said cover plate shielding
the sensor.
24. The method of claim 20, wherein the optical sensor is a contact
image sensor.
25. The card shoe of claim 15, wherein at least one of the card
feed limiter plate and protective cover plate comprises a card
shielding device for shielding a back side of a card from
observation and through which a card can be contacted and moved
through the opening.
Description
BACKGROUND
[0001] 1. Field of the Invention
[0002] The present invention relates to equipment for the delivery
of playing cards.
[0003] 2. Background of the Art
[0004] Playing cards are ordinarily provided to players in casino
table card games either directly from a deck held in a dealer's
hands or with cards removed by the dealer from a dealing shoe. The
original dealing devices were little more than trays that supported
the deck(s) of cards and allowed the dealer to remove the front
card (with its back facing the table to hide the rank of the card)
and deliver it to a player. Over the years, both stylistic and
functional changes have been made to dealing shoes, which have been
used for blackjack, poker, baccarat and other casino table card
games.
[0005] Recently, card recognition technology has been incorporated
into card shoes in order to recognize cards as they are dealt for
various purposes, including for game play and for security reasons.
U.S. patent application Ser. No. 11/417,894 ("the '894
application"), assigned to Shuffle Master, Inc. and published as US
2006/0279040 A1, discloses such technology and a card shoe
including such technology, which is incorporated herein by
reference.
[0006] In the card shoe disclosed in the '894 application, the use
of a physical device or component on an interior surface of the
card exit port of the shoe has been used to limit the number of
cards that can be pulled from the shoe at one time. A declining
card support surface and two opposing side walls are used for
retaining a group of pre-shuffled cards. The card dealing shoe has
an exit end with an opening for the manual removal of individual
cards. Located proximate the exit end of the shoe can be a card
recognition sensor and an associated card position sensor. A card
feed limiter is provided to assure that only a single card exits
the shoe at one time, and that the printed material on the card
comes into close proximity to or contact with the sensors,
facilitating the scanning of the card markings.
[0007] The fixed card feed limiter, such as that disclosed in the
'894 application, could be improved. Its configuration can require
the exertion of greater force by a dealer to extract a playing card
from the shoe, depending on the thickness of the cards stored
therein. Related to this, the fixed card feeder limiter may not be
compatible with some playing cards, again, depending on card
thickness and size. Furthermore, residue from the playing cards,
which may accumulate after even limited use of the cards, can build
up on the sensors for the card reading system. This residue buildup
can cause the system to malfunction, e.g., card misreading, and
require service. A card dealing shoe that can accommodate varied
card thickness and allow easy access to the card reading sensors
for cleaning or repair would be advantageous.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1 is a perspective view of the front end of a playing
card dealing shoe with a card feed limiter, with the protective
cover removed.
[0009] FIG. 2 is a side elevation view of the front end of a
playing card dealing shoe with a card feed limiter, with the
protective cover removed.
[0010] FIG. 3 is an exploded view of an example of a front end of a
playing card dealing shoe of the present invention.
[0011] FIG. 4 is an exploded view of an example of a front end of a
playing card dealing shoe, exposing a bottom surface of a card feed
limiter and a protective cover.
[0012] FIG. 5 is a perspective view of a loaded playing card
dealing shoe with a card feed limiter, with a protective cover
removed.
[0013] FIG. 6 shows an embodiment of a card feed limiter and
protective cover for a card shoe.
[0014] FIG. 7 shows an alternative embodiment of a card feeder
limiter and protective cover for a card dealing shoe.
DETAILED DESCRIPTION
[0015] In the following detailed description, reference is made to
the accompanying drawings, which form a part hereof, and in which
is shown by way of illustration specific embodiments that may be
practiced. These embodiments are described in sufficient detail to
enable those of ordinary skill in the art to make and use them, and
it is to be understood that structural, logical, or procedural
changes may be made to the specific embodiments disclosed.
[0016] The present invention relates to a card shoe for storing and
delivering cards for a card game and to methods of fabricating such
a shoe. Although the card shoe can be a component of a card
handling device useful for shuffling, card verification, card
delivery and/or card storage, in an embodiment described herein,
the exemplary shoe stores and functions as a card dispenser.
Additionally, the shoe incorporates card reading systems, a
detachable and adjustable card feed limiter and a detachable
protective cover. Of note, the card reading systems of the present
invention can be used with any conventional casino-style playing
card of any brand. No special adaptation for the cards, such as
imprinting with a bar code, is necessary for the reading systems to
identify the suit and rank of such cards.
[0017] Embodiments of the invention are discussed below with
reference to the figures, wherein like reference numbers denote
like features. The front end of an exemplary embodiment of playing
card dealing shoe 100 is shown in FIGS. 1-4. A view of an entire
exemplary playing card dealing shoe 100 is shown in FIG. 5. The
card shoe 100 can be fabricated by assembling components as
discussed below. The dealing shoe 100 has a generally rectangular
shaped body 101 as shown in FIG. 7, suitable for holding standard
playing cards and can be sloped from a rear end 102 (shown in FIG.
5) to a front end 105 where stored cards are removed. Cards are
loaded from above by removing upper cover 103 (See FIG. 5). The
shoe 100 can hold one or multiple card decks, such as a group of
eight standard 52 card decks used for many casino games. The body
101 can be constructed of a rigid plastic, metal, wood, or other
durable material. FIG. 5 also shows cards 501 loaded into shoe 100,
ready to be dispensed manually.
[0018] Cards can be shuffled prior to insertion into the shoe 100,
or, shoe 100 can be an integral part of a card shuffler, so that
shuffled cards can be automatically delivered into the shoe 100 by
the shuffler. An example of a shuffler with an integral shoe is
fully disclosed in U.S. Pat. No. 6,254,096, assigned to Shuffle
Master, Inc., the content which is hereby incorporated by
reference. Cards may be manually inserted into the exemplary shoe
100 and are manually removed by pressing downwardly on an outer
surface of a card through an inverted U-shaped opening 115 in the
front end 105 of the shoe 100.
[0019] As shown in FIG. 1 and more clearly in FIGS. 4 and 5, one
side of the shoe 100 can have a control panel 125, which can
outwardly protrude from the shoe body 101 and can contain a
plurality of buttons 104 and a display 106. Such a control panel
125 is useful for a dealer who would use the shoe 100 to deliver
cards to a casino card game. In one embodiment of the invention,
the control panel 125 display is an LED display and is configured
to provide a variety of information to a dealer, such as banker and
player hand composition, game outcome, jam detection, cut card
presence, the presence of a card from an unauthorized deck, the
presence of a card from an unauthorized casino, a marked card and
the like.
[0020] The details of the control system contained within the shoe
that provides game data and game outcome information to a game of
Baccarat is disclosed in U.S. application Ser. No. 11/417,894,
filed May 3, 2006.
[0021] As shown in FIG. 1, the front end 105 of the dealing shoe
100 comprises a plate-like card feed limiter 110 bearing an
inverted U-shaped opening 115. The card feed limiter 110 is
preferably made from rigid material like the shoe 100, such as a
rigid plastic or a metallic material, but may be any suitable
material. The card feed limiter 110 slopes downwardly at an upper
portion and is substantially parallel with a base plate 135 portion
of the shoe 100 at a lower portion of the limiter 110, as shown in
FIGS. 1 and 2. The card feed limiter 110 prevents more than one
card from exiting the shoe 100 at one time, and additionally
provides structure to retain cards within the shoe. Furthermore,
the card feed limiter 110 functions to bring the cards into close
proximity to one or more sensors 150 at the base plate 135 such
that the cards can be accurately identified using the sensor(s)
150. A preferred sensor is a CIS line sensor, disclosed in the '894
application. A suitable distance range between the sensor and the
card face is approximately 0.01-0.04 inches for this type of
sensor.
[0022] As shown in FIG. 2, the base plate 135 connects with a
sloped front end 105 of the shoe 100 so that cards can easily slide
out of the shoe 100 onto a card playing surface, such as a gaming
table. The card feed limiter 110 is detachably fixed to the shoe
100 body in a single position, but is adjustable in position
relative to the base plate 135 alone line 145. The card feed
limiter 110 can be coupled to the shoe 100 in a manner which allows
the height of limiter 110 above base plate 135 to be adjusted
relative to the body 101 and base plate 135, or separated entirely
from the shoe 100, and can be repositioned relative to the shoe 100
and base plate 135 along direction line 145 to change the size of a
gap 140 between the card feed limiter 110 and the base plate 135.
The size of the gap 140 can be tailored to the thickness of
individual cards held in the shoe 100, providing the advantage of
requiring less force to remove cards, thereby extending the life of
the playing cards and shoe 100, improving the flow of cards onto
the table game, and ensuring that cards are accurately identified
by the sensor(s) 150 as desired.
[0023] In the embodiment of the invention as shown in FIGS. 1-5,
the card feed limiter 110 is adjustably and detachably affixed to
the shoe 100 via fasteners 160, which can, for example, connect the
limiter 110 to the body 101 of shoe 100 through elongated slots 120
provided in the limiter 110. The elongated slots 120 of limiter 110
respectively align with a plurality of holes 130 in the front end
105 of dealing shoe 100. The elongation of the slots 120 is in a
direction along line 145, which allows the limiter 110 to be
positioned along this line 145. The fasteners 160 can be screws, as
shown in FIG. 3, but can be other fastening devices as well, such
as bolts, toggle fasteners, and other devices. Once the card feed
limiter 110 is positioned such that gap 140 between the limiter 110
and the base plate 135 accommodates a playing card of a desired
thickness, as well as to ensure desired proximity between exiting
cards and the sensor(s) 150, fasteners 160 may be secured through
slots 120 into holes 130, thereby attaching the limiter 110 to the
shoe 100 for use.
[0024] Although the embodiment illustrated in FIGS. 1-5 provides
for adjustability of limiter 110 relative to the shoe body 101 and
fastening of the limiter 110 using elongated slots 120 in the
limiter 110 and associated fasteners 160, other structures can also
be provided which permit such adjustability and secure fastening.
For example, hook and loop fasteners 160 respectively attached to
the body 101 and underside of the limiter 110 can be used to allow
separation of the two, adjustability of the gap 140 and secure
fastening of the limiter 110 to the shoe 100.
[0025] As discussed above, in the embodiment shown in FIGS. 1-5,
the shoe 100 can be equipped with one or more sensors 150. For
example, a card-reading line sensor can be positioned within the
base plate 135 and can be perpendicular to a direction of travel of
a card exiting the shoe 100. A contact image sensor (CIS) is a
preferred card-reading sensor, which can operate in cooperation
with one or more optical position sensors. With the removal of the
fasteners 160 holding the limiter 110 to the shoe 100, access to
the exposed parts of the sensors 150 is easily achieved.
Additionally, the card feed limiter 110 can further comprise a
plurality of openings 112 (see FIG. 1) positioned over the one or
more sensors 150 to allow access for cleaning the surface of the
sensors 150 without removal of the limiter 110. This feature
provides the advantage of providing maintenance access to the
sensors 150 for cleaning without the use of tools or removal from
the casino table or floor and without the need of any specialized
training.
[0026] Furthermore, since the preferred contact image sensor 150
typically functions best when the surface being scanned, here the
playing card, is in contact with the scanner 150, the card feed
limiter 110 adjustability ensures that the gap 140 between the card
feed limiter 110 and base plate 135 is ideal for such contact or
close proximity. The sensors 150 can be those disclosed in the '894
application and the dealing shoe 100 can be connected to a network
via an I/O port or wirelessly, if desired. Information about the
game being played and/or cards dealt can be transmitted over such a
network.
[0027] An embodiment of the dealing shoe 100 can further comprise a
detachable protective cover 200 to cover the limiter 110, as shown
in FIGS. 3 and 4. The protective cover 200 can have an inverted
U-shaped opening 225, which aligns with and generally conforms in
shape and size to the U-shaped opening 115 of the card feed limiter
110. The protective cover 200 provides added protection to the
underlying limiter 110, the fasteners attaching the limiter 110 to
the shoe 100, and the sensors 150, which, but for the protective
cover 200 would be at least partially exposed. The protective cover
200 provides a barrier to prevent debris from collecting on the
sensors aligned with apertures 112. The protective cover 200 is
preferably removably attached to the limiter 110 by means of
magnets, but any type of attachment means that allows the removal
of the plate 200 without requiring hand tools is preferred. For
example, a number of threaded bolts affixed to the limiter 110 that
extend through apertures in plate 200 and secured by a threaded
wing nut would also suffice.
[0028] If desired, one or both of the limiter 110 and the
protective cover 200 can further comprise a shielding device 250
and 252 to hide the underlying card in the shoe 100, as shown in
FIG. 6. This would prevent a game player or the dealer from
unfairly recognizing the card value and suit before it is dealt on
the occasion that, for example, the card is marked. The shielding
device 250, 252 can be brush-like material as shown in FIG. 6, a
slidable cover, or other device, which enables the dealer to access
and contact the underlying card to be dealt, but hide the card's
back surface from view prior to being dealt.
[0029] Referring again to FIG. 4, a back surface 205 of protective
cover 200 can have a plurality of recesses 230 to receive a top end
of fasteners 160, shown as screws, when mounted to adjustable card
feed limiter 110, if the top ends of the fasteners 160 are not
flush with the limiter 110. The back surface 205 can also have a
plurality of larger recesses 220 to accommodate magnets 210 secured
therein. Once the card feed limiter 110 has been adjusted to the
desired position and secured to dealing shoe 100 with fasteners
160, the protective cover 200 can be mounted over the card feed
limiter 110. Magnets 210 can secure the protective cover 200 to the
card feed limiter 110 if it is metal or has metal or magnetic
attachment points so that both inverted U-shaped openings 115, 225
are aligned allowing the dealer to draw playing cards. Other
attachment means for the protective cover 200 can also be used,
such as, for example, clips, detachable adhesive, snaps, screws,
hook and loop fasteners, and other devices suitable to detachably
secure protective cover 200 in place.
[0030] An alternative embodiment is shown in FIG. 7, where the card
feed limiter 110a is configured so as not to extend over the
sensor(s) 150, 152 and 154. This provides even greater access to
the sensor(s) 150, 152 and 154 for cleaning or repair. The
protective cover 200 provides shielding for the sensor(s) 150, 152
and 154, which protects the sensor(s) from damage and
contaminants.
[0031] The above-described card shoe 100 having the card feed
limiter 110 and protective cover 200 can be used by a casino or
dealer during the playing of a card game and may be tailored for
cards of various sizes. Because not all cards used in casino games
are the same, some are thicker or thinner than others. When an
occasion arises for the card shoe 100 to be used with a set of
cards of a different thickness, the shoe 100 may be tailored for
such use by changing the gap 140 dimension so that such cards are
easily removed from the shoe 100 with an appropriate force.
[0032] The method of tailoring the shoe 100 includes removing the
detachable protective cover 200 (preferably by hand and without the
use of tools) and exposing the card feed limiter 110 and the
fasteners 160, e.g., screws, attaching the limiter 110 to the shoe
100. Then, the fasteners 160 attaching the card feed limiter 110 to
the shoe are loosened or removed, preferably loosened. Once the
fasteners 160 are loosened, the card feed limiter 110 is moved
relative to the shoe 100 along line 145, as shown in FIGS. 1 and 2.
The card feed limiter 110 is positioned so that the gap 140 is
correct for the cards to be used in the shoe 100. Once the card
feed limiter 110 is correctly positioned in this way, the fasteners
160 are tightened, thereby affixing the card feed limiter 110 to
the shoe 100 in a semi-permanent way so that the shoe 100 can be
used for a card playing game. The protective cover 200 is then
reattached.
[0033] The above-described card shoe 100 having the card feed
limiter 110 and protective cover 200 can be used with the shoe 100
so that the sensors 150 can be easily accessed for repair or
cleaning through openings or apertures 112 in the limiter 110. Such
access is achieved by first manually removing the protective cover
200. Once the protective cover is removed, sensors 150 can be
accessed through the openings 112 in the card feed limiter 110. If
greater access to the sensors 150 is required, the fasteners 160
attaching the card feed limiter 110 can be removed and the card
feed limiter 110 removed from the shoe 100 so that the sensors 150
can be fully accessed for cleaning or repair.
[0034] The above description and drawings should be considered
illustrative of example embodiments that achieve the features and
advantages described herein. Modification and substitutions to
specific conditions and structures can be made. Accordingly, the
invention is not to be considered as being limited by the foregoing
description and drawings, but is only limited by the scope of the
appended claims.
* * * * *