U.S. patent application number 09/753627 was filed with the patent office on 2003-01-02 for device cover, particularly suited for electronic devices.
Invention is credited to Vick, Ross W. III.
Application Number | 20030000984 09/753627 |
Document ID | / |
Family ID | 27390409 |
Filed Date | 2003-01-02 |
United States Patent
Application |
20030000984 |
Kind Code |
A1 |
Vick, Ross W. III |
January 2, 2003 |
Device cover, particularly suited for electronic devices
Abstract
Device includes a cover and a face provided on the cover. Cover
may include a window sufficiently clear so that a portion of an
object on which the cover is disposed can be viewed through the
window. The window may serve to magnify or reduce the image of the
viewed object. The window may be a clear, colored window to vary
the apparent color of the viewed object. Likewise, the window may
be a clear colorless window. The window may include an outer and
inner layer of material enclosing a fluid, such as a gas or liquid,
to protect the viewed object, such as the viewed keypad of a
cellular telephone. The fluid may include one or more liquids, one
or more of which may be of different colors so that when the window
is pressed, different patterns are viewed in the liquid. The
pressing of the liquid may likewise cause objects, such as logos or
toys suspended in the liquid to move about in the liquid to enhance
the effect. The thickness of the layers and the volume of the fluid
may be select so as the protect the viewed object, such as the keys
of a telephone, as well as to prevent inadvertent actuation of an
ON/OFF button on the covered object. The cover may be in any
desired configuration, including anthropomorphic and animal-like
shapes.
Inventors: |
Vick, Ross W. III; (Dallas,
TX) |
Correspondence
Address: |
SHLESINGER, ARKWRIGHT & GARVEY LLP
3000 South Eads Street
Arlington
VA
22202
US
|
Family ID: |
27390409 |
Appl. No.: |
09/753627 |
Filed: |
January 4, 2001 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
60174590 |
Jan 5, 2000 |
|
|
|
60174376 |
Jan 4, 2000 |
|
|
|
Current U.S.
Class: |
224/610 ;
224/269 |
Current CPC
Class: |
A45F 2003/002 20130101;
A45C 2011/002 20130101; A45C 11/00 20130101; A45F 5/021 20130101;
A45C 13/08 20130101 |
Class at
Publication: |
224/610 ;
224/269 |
International
Class: |
B65D 001/00; A45F
005/00; A45F 003/02 |
Claims
1. A device, comprising: a) a cover; b) said cover including a face
provided on said cover, said face including a window; and c) said
window being sufficiently clear so that a portion of an object on
which said cover is disposed can be viewed through said window.
2. A device as in claim 1, wherein: a) said window is substantially
entirely clear.
3. A device as in claim 2, wherein: a) said window is
colorless.
4. A device as in claim 2, wherein: a) said window is colored.
5. A device as in claim 4, wherein: a) said window is blue.
6. A device as in claim 1, wherein: a) said window includes a first
layer and a second layer.
7. A device as in claim 6, wherein: a) a third layer is provided
between said first and second layers.
8. A device as in claim 7, wherein: a) said third layer includes a
fluid.
9. A device as in claim 8, wherein: a) said fluid includes a
gas.
10. A device as in claim 8, wherein: a) said fluid includes a
liquid.
11. A device as in claim 10, wherein: a) said fluid includes an
oil.
12. A device as in claim 11, wherein: a) said fluid includes
water.
13. A device as in claim 8, wherein: a) said fluid includes first
and second immiscible liquids.
14. A device as in claim 13, wherein: a) the first immiscible
liquids is clear.
15. A device as in claim 14, wherein: a) the clear liquid is
colorless.
16. A device as in claim 14, wherein: a) the clear liquid is
colored.
17. A device as in claim 16, wherein: a) the colored liquid is
blue.
18. A device as in claim 17, wherein: a) the second liquid is
yellow.
19. A device as in claim 18, wherein: a) said cover is sized for
covering a portable electronic device; and b) said window is sized
and located for covering a keypad of a portable electronic device
covered by said cover.
20. A device as in claim 19, wherein: a) said cover is sized for
substantially completely covering a portable electronic device in
use; and b) said window is sized for substantially completely
covering the keypad of a portable electronic device in use.
21. A device as in claim 20, wherein: a) said cover in sized for
covering at least one of a telephone, a pager, a personal digital
assistant, a wireless communication appliance, a wireless on-line
database system appliance, and a wireless network appliance.
22. A device as in claim 1, wherein: a) an element of an
anthropomorphic figure is provided on said cover.
23. A device as in claim 22, wherein: a) said element includes an
animal head.
24. A device as in claim 22, wherein: a) said element includes at
least an animal torso.
25. A device as in claim 24, wherein: a) said cover is configured
for covering a portable electronic device.
26. A device as in claim 25, wherein: a) said window is located for
covering a portion a keypad.
27. A device as in claim 1, wherein: a) said window includes a
flexible plastic.
28. A device as in claim 26, wherein: a) said layer includes a
first layer and a second layer.
29. A device as in claim 28, wherein: a) a third layer is provided
between said first and second layers.
30. A device as in claim 29, wherein: a) said third layer includes
a fluid.
31. A device as in claim 30, wherein: a) said fluid includes a
liquid.
32. A device as in claim 31, wherein: a) said liquid includes two
liquids of different colors.
33. A device as in claim 22, wherein: a) an opening is provided in
said cover and located for enhancing the transmission of sound
therethrough.
34. A device as in claim 22, wherein: a) a slot is provided in said
cover and sized for receiving an electronic device therethrough;
and b) a closure is provided adjacent said slot for closing said
slot sufficiently for preventing removal of an electronic device
disposed inside said cover.
35. A device as in claim 34, wherein: a) a fastener is provided for
restricting operation of said closure.
36. A device as in claim 35, wherein: a) said closure includes a
zipper, and said fastener includes a hook-and-loop fastener.
37. A device as in claim 8, wherein: a) a movable element is
provided in said fluid.
38. A device as in claim 37, wherein: a) said movable element
includes a decorative element.
39. A device as in claim 38, wherein: a) said movable element
includes a toy.
40. A device as in claim 8, wherein: a) said liquid, first layer,
and said second layer are sufficiently thick so as to restrict
inadvertent actuation of a key on a keypad of an electronic device
disposed in said cover, in use.
41. A device as in claim 1, wherein: a) said window includes a hard
plastic.
42. A device as in claim 1, wherein: a) a neck strap is
provided.
43. A device as in claim 1, wherein: a) said window is configured
for magnifying the image of a device disposed within the cover, in
use.
44. A device as in claim 8, wherein: a) said liquid is selected for
magnifying the image of a device disposed within the cover, in
use.
45. A device as in claim 8, wherein: a) said liquid, said first
layer, and said second layer are selected for varying the size of
the image of a device disposed within the cover, in use.
Description
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the priority of U.S. application No.
60/174,590, filed Jan. 5, 2000, and this application claims the
priority of U.S. application No. 60/174,376, filed Jan. 4, 2000 and
each of which is incorporated herein by reference.
FIELD OF THE INVENTION
[0002] The invention is directed to device covers. More
particularly, the invention is directed to a cover for electronic
devices, for example. Even more particularly, the invention relates
to a cover having a window for viewing at least a portion of an
object covered thereby, such as the dialpad of a telephone.
BACKGROUND OF THE INVENTION
[0003] Covers for a variety of devices are known.
[0004] Known devices range from simple dust covers for toasters for
preventing dust and grease accumulation to lead-lined covers for
preventing unintentional development of photographic film within
covered cameras by x-ray equipment.
[0005] Covers are likewise known for electronic devices, such as
cellular telephones, laptop computers, and the like.
[0006] Known covers for cellular or digital telephones, for
example, have limited protective value.
[0007] In addition, known covers lack additional features that
enhance the functionality and usefulness thereof.
[0008] Accordingly, there is a need for a cover which overcomes the
drawbacks of prior art devices.
OBJECTS AND SUMMARY OF THE INVENTION
[0009] An object of the invention is to overcome the drawbacks of
prior art devices.
[0010] Another object of the invention is to provide a cover for a
variety of devices.
[0011] Another object of the invention is to provide a cover for
portable electronic devices.
[0012] A further object of the invention is to provide a carrier,
pouch, and/or cover for telephones, pagers, personal digital
assistants, wireless communication appliances and devices, wireless
on-line database systems (internet appliances and devices),
wireless network appliances and devices, and the like.
[0013] A still further object of the invention is to provide a
cover which serves to both protect and enhance the usability of the
device which it covers.
[0014] Another object of the invention is to provide a cover which
enhances the visual interest of the device which it covers.
[0015] Yet another object of the invention is to provide a cover
which enhances the portability of the device which it covers.
[0016] A still further object is to provide a cover which protects
the covered device, and which allows for the intended use of the
electronic device.
[0017] In summary, the invention is directed to a device including
a cover and a face provided on the cover. The face includes a
window that is sufficiently clear so that a portion of an object on
which the cover is disposed can be viewed through the window.
[0018] It will be appreciated that relative terms such as left,
right, up, and down are for convenience only and are not intended
to be limiting.
[0019] Likewise, the term cellular telephone is for convenience and
is to be understood to include all types of telephones, not limited
to wireless communications appliances, digital telephones,
satellite telephones, wireless network appliances, and, indeed, any
portable electronic device.
BRIEF DESCRIPTION OF THE DRAWINGS
[0020] FIG. 1 shows a first preferred embodiment of a cover, such
as a cellular telephone cover according to the invention;
[0021] FIG. 2 shows another preferred embodiment of a cellular
telephone cover according to the invention;
[0022] FIG. 3 shows a further preferred embodiment of a cellular
telephone cover according to the invention;
[0023] FIG. 4 shows a further preferred embodiment of a cellular
telephone cover according to the invention;
[0024] FIG. 6 shows another preferred embodiment of a cellular
telephone cover according to the invention;
[0025] FIG. 7 shows a further preferred embodiment of a cellular
telephone cover according to the invention;
[0026] FIG. 8 shows another preferred embodiment of a cellular
telephone cover according to the invention in the form of an
anthropomorphic shape or an animate object, such as a bear;
[0027] FIG. 9 shows a still further preferred embodiment of a
cellular telephone cover according to the invention similar to FIG.
8;
[0028] FIG. 10 shows another preferred embodiment of a cellular
telephone cover according to the invention similar to FIGS. 8 and
9, with the substitution of a cat's head for the bear's head;
[0029] FIG. 11 shows a further preferred embodiment of a cellular
telephone cover according to the invention in the forms of
inanimate objects, such as a baseball and a football;
[0030] FIG. 12 shows a still further preferred embodiment of a
cellular telephone cover according to the invention in the form of
a baseball with a team logo (stylized);
[0031] FIG. 13 shows a further preferred embodiment of a cellular
telephone cover according to the invention similar to FIG. 12;
[0032] FIG. 14 shows another preferred embodiment of a cellular
telephone cover according to the invention similar to FIG. 11;
[0033] FIG. 15 shows a further preferred embodiment of a cellular
telephone cover according to the invention similar to the football
version of FIG. 11, and with an optional top flap;
[0034] FIG. 16 shows another preferred embodiment of a cellular
telephone cover according to the invention;
[0035] FIG. 17 shows a still further preferred embodiment of a
cellular telephone cover according to the invention, along with a
neck strap or wrist strap;
[0036] FIG. 18 shows a still further preferred embodiment of a
cellular telephone cover according to the invention;
[0037] FIG. 19 shows a further preferred embodiment of a cellular
telephone cover according to the invention;
[0038] FIG. 20 shows another preferred embodiment of a wrist or
neck strap for use with the covers according to the invention, for
example;
[0039] FIG. 21 shows a further preferred embodiment of a cellular
telephone cover according to the invention similar to FIG. 1;
[0040] FIG. 22 shows another preferred embodiment of the front of
cellular telephone cover according to the invention similar to the
bear of FIG. 9;
[0041] FIG. 23 shows the rear of the preferred embodiment of a
cellular telephone cover according to the invention of FIG. 22;
[0042] FIG. 24 shows the rear of the preferred embodiment of a
cellular telephone cover according to the invention of FIG. 22 with
the zipper unzipped for allowing insertion of a portable electronic
device;
[0043] FIG. 25 shows another preferred embodiment of the face of a
cover according to the invention particular suited for pagers and
the like;
[0044] FIG. 26 shows the rear of the preferred embodiment of the
cover according to the invention of FIG. 25;
[0045] FIG. 27 shows a rear view of the preferred embodiment of the
cover according to the invention of FIG. 25 with the two halves
separated for viewing and using an unillustrated pager, for
example;
[0046] FIG. 28 shows a front view of the preferred embodiment of
the cover according to the invention FIG. 25 with the two halves
separated as in FIG. 27;
[0047] FIG. 29 shows a front view of a still further preferred
embodiment of a cellular telephone cover according to the invention
similar to the embodiments of FIGS. 4 and 7 that has playable
soccer players and soccer balls provided in the fluid layer;
and
[0048] FIG. 30 shows a rear view of the preferred embodiment of
FIG. 29.
DETAILED DESCRIPTION OF THE INVENTION
[0049] FIG. 1 shows a first preferred embodiment of a cover
according to the invention, particularly suited for a cellular
telephones, for example.
[0050] Cover 10 includes a flap 14 which may be detachably attached
to the remainder of cover 10 by a fastener 18.
[0051] An optional hole 24 may be provided to enhance the ability
of a user to hear the speaker of a telephone disposed within cover
14.
[0052] An optional mouthpiece hole 26 may be provided. It has been
found that the type and thickness of cover 10 may be varied so as
to preclude the need for holes 24 and 28, while still allowing the
user to talk on an enclosed telephone and hear clearly the person
to whom the caller is speaking.
[0053] Cover 10 may include a first layer 32, a second layer 34,
and a third layer 36.
[0054] First and second layers 32 and 34 may be sufficiently clear
so that a portion of an object disposed within cover 10 is visible
from outside the cover. One or both of layers 32 and 34 may be
clear and either colored or colorless. For example, at least one of
first and second layers 32 and 34 may be clear and colorless while
the other one of the layers may be clear and blue.
[0055] Third layer 36 would be disposed between first and second
layers 32 and 34. Layer 36 may be a fluid, such as a gas, and/or a
liquid.
[0056] In the case where layer 36 is a fluid, good results have
been achieved when third layer 36 includes first and second fluids,
as will be described in detail below.
[0057] FIG. 2 shows another embodiment of a cover showing how a
face 40 of the cover may include a window 44. In FIG. 2, window 44
covers substantially the entire face of the cover, as in the
embodiment of FIG. 1. It is contemplated that window 44 of face 40,
for example, is located in the vicinity of a keypad of an
electronic device received in the cover.
[0058] FIG. 3 illustrates another embodiment of the invention
similar to FIGS. 1 and 2.
[0059] FIG. 3 shows a section A-A. That section A-A is shown in two
(2) different ways on the left of FIG. 3. At the top left of FIG.
3, it is shown how third layer 36 may include a first fluid 52 and
a second fluid 54. As shown in the bottom left figure of FIG. 3
first fluid 52 may be a clear blue fluid and second fluid 54 may be
a clear yellow fluid.
[0060] It is contemplated that first and second fluids 52 and 54 be
immiscible liquids, so that the blue and yellow colors, for
example, remain distinct, (i.e., unmixed over time). In that
manner, interesting patterns may develop owing to the fluids moving
relative to each other and owing to the user pressing against one
or both of first and second layers 32 and 34.
[0061] It has been found that this feature works well when the user
is using the keypad of an electronic device disposed within the
cover, when the user presses against the exterior one of first and
second layers 32 and 34 pressure is applied to fluid layer 36. In
that manner, fluid layer 36 is caused to be compressed and, thus,
typically made thinner at the point where pressure is applied. The
movement of the fluid away from that pressure point caused by the
user's finger disturbs the pattern of the first and second fluids
52 and 54 that had resulted during the quiescent (non-use) state of
the device.
[0062] Good results have also been achieved when the cover receives
a device, such as a digital or cellular telephone with backlighted
keys on its keypad, such as are in widespread use today. In that
manner, the backlighting of the keys adds to the visual interest
when one or more of the first, second, or third layers is a clear
colored layer.
[0063] FIG. 3 also illustrates the use of a movable element 48
which may be a decorative element, such as the illustrated glitter
that substantially freely moves around within the fluid layer.
[0064] FIG. 4 illustrates another embodiment in which moveable
elements 48 are in the form of toys, such as the illustrated soccer
player 62. Furthermore, some of the moveable elements 48 are in the
form of corresponding soccer balls 64, by which the user can press
against one or more of soccer players 62 and apply pressure in a
manner so as to cause player 62 to approach soccer ball 64 and
"kick" soccer balls 64.
[0065] A strap 70 may be applied to the embodiment of FIG. 4 and to
any of the other embodiments according to the invention. Strap 70
may be in the form of a wrist strap or a neck strap.
[0066] FIG. 5 shows another preferred embodiment of the cover in
which the moveable element is in the form of a flower 74.
[0067] FIG. 6 shows another preferred embodiment of the invention
in which the moveable element is in the form of a butterfly 76.
Further, a fastener 80, such as hook-and-loop fastener is use for
detachably securing the flap through which the device is inserted
into the cover is detachably attached to the remainder of the
cover.
[0068] FIG. 7 illustrates another preferred embodiment of a cover
in which soccer players and soccer balls are again shown, as well
as a zipper 84, which may be used in any of the other
embodiments.
[0069] FIG. 8 illustrates an animate FIG. 90, such as the
illustrated bear. This cover has a window 94 which may be as
described above with multiple layers, or may be a single layer of
plastic, for example, provided on the rear thereof.
[0070] Self-closing fastener 88 may be used for attaching cover 90
to a child's pants or the user's backpack, for example. In that
manner the electronic device is less likely to be forgotten.
[0071] FIG. 9 illustrates another preferred embodiment of a cover
100 similar to the cover of FIG. 8 that has a window 104 on the
front side of the figure. A pull 108 which may be in the form of an
animal tail can be provided for providing enhancing usability of
the illustrated zipper for opening the cover for inserting the
portable electronic device therein.
[0072] FIG. 10 illustrates another animate FIG. 110 in the form of
a cat having a cat's head 112 and a cat tail 114. The FIG. 10
embodiment may be made by substituting cat's head 112 for the head
of the bear 100 of FIG. 9. Likewise, cat's tail 114 can be
substituted for the bear tail 108 of FIG. 9. The same body may be
used for ease of production.
[0073] By using the anthropomorphic and animate figures according
the invention, a user, such as a child, is more likely to take the
covered cellular phone with him or her, as may be desired by the
child's parent. The child is less likely to forget the cellular
phone somewhere.
[0074] FIG. 11 shows, in the left three figures thereof, a cover
120 suggestive of a baseball having a baseball-like seam 122
extending around the different sides of the cover. A football
version 124 may likewise be provided.
[0075] FIG. 12 shows another baseball version having a logo
thereon.
[0076] FIG. 13 shows a still further embodiment of a baseball
cover.
[0077] FIG. 14 shows another preferred embodiment of a baseball
cover in the left three figures, and a football cover in the single
right figure.
[0078] FIG. 15 shows another version of a football cover.
[0079] FIG. 16 shows another preferred embodiment of the
invention.
[0080] FIG. 17 illustrates yet another preferred embodiment of the
invention with a variety of closure and fastener means.
[0081] FIG. 18 illustrates yet another preferred embodiment of the
cover with another type of fastener thereon.
[0082] FIG. 19 shows another still further preferred embodiment of
a cover according to the invention.
[0083] FIG. 20 illustrates a variety of wrist and/or neck straps 70
according to the invention illustrating trademarks of Brigade Sales
& Marketing, Inc. of Dallas, Tex.
[0084] FIG. 21 shows another cover according to the invention in
which first fluid 52 and second fluid 54 can be seen as separate
immiscible liquids.
[0085] FIGS. 22-24 illustrate another preferred embodiment of a
cover according to the invention, similar to the embodiment of FIG.
9. FIG. 22 shows the face, FIG. 23 shows the rear when closed, and
FIG. 24 shows the rear of the cover when open so as to allow
insertion of a device into the cover.
[0086] FIGS. 25-28 show a still further preferred embodiment of a
cover 125 according to the invention. Cover 125 is particularly
suited for use with electronic devices such as pagers. FIG. 25
shows the face of the cover when closed, FIG. 26 shows the rear of
the cover when closed, FIG. 27 shows the face of the cover when
open, and FIG. 28 shows the rear of the cover when open.
[0087] As shown in FIG. 27, cover 125 includes a first side 126A
and a second side 126B detachably attached thereto by use of a
first fastener 127A and a second faster 127B, for example. A single
fastener or multiple fasteners can be used as will be appreciated.
Fasteners 127A and 127B may conveniently be made of the hook
portion and the loop portion of hook-and-loop fasteners
respectively.
[0088] A window 128 may be provided through which the user views
the keypad and/or display of a pager disposed therein, for
example.
[0089] A fastener may be provided for opening and closing an
opening in the interior or the cover for insertion and removal of
the pager, for example.
[0090] FIGS. 29 and 30 illustrate a cover 130 similar to some of
the above embodiments in which a soccer player(s) 134 and a ball(s)
138 are provided, and used as described above.
[0091] FIG. 29 shows the face thereof and FIG. 30 shows the rear
thereof. A further pocket, such as the illustrated mesh holder may
be provided for carrying an additional electronic device, keys or
writing instruments, for example.
[0092] It is contemplated that any of a variety of synthetic and
natural materials be used for the illustrated and described
elements set forth herein.
[0093] The immiscible liquids may include oil and water, gels, and
gases such as air. The illustrated figures are merely examples, and
additional animals other than bears and cats are contemplated.
[0094] The layer(s) of the window in the various embodiments
prevent the keys of the keypad placed behind the window, in use,
from being inadvertently actuated. The thickness of the first,
second, and third layers can be varied to achieve the desired
protection from blows and from inadvertently actuation.
[0095] Prior art covers often allow accidental pressing and, hence,
actuation of the "POWER" key that leads to undesirable battery
discharge, thus rendering the device inoperable.
[0096] A liquid third layer, for example, prevents such inadvertent
actuation.
[0097] The layer(s) also reduce/eliminate harm to the covered
device from blows by the person or other objects.
[0098] The layer(s) may be made of soft, flexible material, as well
as hard plastic material. Such hard plastic material likewise may
serve to protect the keypad of the covered object. The hard plastic
may be in the form of a lenticular face surrounded by the remainder
of the cover and/or a surround of relatively soft plastic. The
lenticular cover may serve as an enlarging (or reducing) lens to
enlarge (or reduce) the size of the keypad fom the viewpoint of the
user, as discussed below.
[0099] In addition to floating objects, such as the toys (e.g.,
soccer player) described above, it is contemplated that trademarks,
symbols, logos, and the like be used.
[0100] All covers may be made with or without gel as an inner
layer.
[0101] The layer(s) may also be used to make the keys on the keypad
placed in the cover easier to read.
[0102] The layer(s) may be normally convex when a device is in the
cover and no keys are being depressed. Such convex shape is shown
in various ones of the figures on the attached Figures.
[0103] Good results have been achieved when the third layer is a
liquid layer which magnifies the button on a cellular telephone,
for example. The liquid(s) of the liquid layer are selected so as
to achieve the desired readiblity by magnifying the image of the
keys as viewed by the user with the desired degree of magnification
and clarity of the image.
[0104] One or more of the first, second, and third layers can be
sized and selected for achieving the desired magnification.
[0105] The image seen by the viewer can be distorted, with or
without magnification, as desired.
[0106] As will be appreciated, the layers may be made convex; i.e.,
bowed outwardly toward the user in order to achieve magnification
from the window/layer(s) acting as a magnifying convex lens.
[0107] Alternatively, the window/layer(s) may be disposed so as to
be a concave, image reducing lens, in use. By "concave" it is meant
that the layer(s) are bowed outwardly away from the user.
[0108] In the case where the third layer is a fluid (liquid or
gas), when the user presses against the layer(s), the layer(s) will
become more concave at the pressure point under the user's finger.
And the liquid will flow toward other regions above the
non-depressed keys. In that manner, the layer(s) will be more
convex above the next key(s) which is to be depressed by the user.
Thus, it has been found that the key(s) which is to be pressed next
in the keystroke sequence will be even easier to see thanks to the
more convex region of the layer(s) above the next key yielding
greater magnification of the next key.
[0109] Alternatively, the image seen by the viewer can be
distorted, with or without magnification to achieve an unusual
visual effect, as desired.
[0110] It has been found that blue, green, red, and yellow layers
are particularly easy to see.
[0111] While this invention has been described as having a
preferred design, it is understood that it is capable of further
modifications, and uses and/or adaptations of the invention and
following in general the principle of the invention and including
such departures from the present disclosure as come within the
known or customary practice in the art to which the invention
pertains, and as may be applied to the central features
hereinbefore set forth, and fall within the scope of the invention
or limits of the claims appended hereto.
* * * * *