Information
-
Patent Grant
-
6170791
-
Patent Number
6,170,791
-
Date Filed
Wednesday, December 23, 199826 years ago
-
Date Issued
Tuesday, January 9, 200124 years ago
-
Inventors
-
Original Assignees
-
Examiners
Agents
- McCutchen, Doyle, Brown & Enersen LLP
-
CPC
-
US Classifications
Field of Search
US
- 248 4411
- 248 4422
- 248 447
- 248 4472
- 248 451
- 248 452
- 248 454
- 248 455
- 248 456
- 248 457
- 248 466
- 248 462
- 248 558
- 248 461
- 248 150
- 248 126
- 248 370
- 248 351
- 248 357
- 248 450
- 248 918
- 211 411
- 211 412
- 211 44
- 211 45
- 281 45
-
International Classifications
-
Abstract
The system includes multiple components that may be used individually, or in conjunction with other components of the system, including a copy holder, paper organizer and a monitor-mounted copy holder. The copy holder/stand accommodates a variety of paper sizes in either portrait or landscape orientation. The copy stand includes a base stand and a removable copy holder, thus allowing the copy holder to be used as a clip board. The copy holder is rotatable about the base stand, thus allowing variation of the relative angle between the user and the copy holder. The copy holder includes at least one clip, and preferably at least two different types of clips. The clips may hold papers and documents against the copy holder as well as provide a means of highlighting or marking regions of particular interest on a document page. The paper organizer may either stand-alone or be held within an opening in the base stand of the copy holder. The paper organizer includes a plurality of curved document support members, the combination of curvature and support member spacing insuring that the documents within the organizer remain in an upright position. The monitor mounted copy holder includes a clip, thus capable of holding a document to the holder. Additionally, the monitor mounted copy holder includes a cavity designed to accommodate a small notepad.
Description
FIELD OF THE INVENTION
The present invention relates in general to a paper management system, and in particular, to a system for holding papers of varying size in a convenient manner about a desk.
BACKGROUND OF THE INVENTION
A variety of different types of paper holders have been designed over time. Typically these holders are designed to fit a specific need of the targeted user. For example, a variety of holders have been designed to hold papers in a substantially vertical fashion near a computer or typewriter, thereby allowing the user access to the information on the papers while freeing up both hands for typing. A second variety of paper holders have been designed to hold papers in an orderly fashion on a desk. A third variety of paper holders have been designed to hold personal note cards of varying size, such as Post-it™ notes.
In the first type of paper holder, often referred to as a copy stand, a flat surface is coupled to a base unit. Typically the base unit or stand is designed to rest on a flat surface, e.g., a desk surface, while providing a means of adjusting the angle of the flat surface with respect to the user. The flat surface may include a tray along the bottom edge, thus preventing papers from sliding off of the surface. The tray can also be used to allow multiple papers to be stacked. The flat surface may include some form of clip attached to the surface, thus providing a means of clipping papers to the surface. The flat surface may also include a ruler slideably attached along one side, the ruler providing a means for the user to mark or highlight an area of interest on the paper.
In the second type of paper holder, often referred to as a paper tray, one or more trays are provided for holding papers in an orderly fashion, for example on a user's desk. Each tray is typically designed for stacking papers, thus including three sides to hold the papers in place, with a lower forward facing side. The lower side allows the user easy access to the contents of the tray. Often each tray includes a means of fixing the tray to an additional tray in a stacking fashion, thus providing the user a means of segregating different types of papers by placing the papers in different trays.
In the third type of paper holder, personal notes or notepads are held in place. For example, one type of holder designed to be placed on a desk is weighted and includes non-slip feet. Once a notepad is attached to the writing surface of the holder, for example with the use of an adhesive, a user can write a note without the pad slipping. In an alternate configuration, a notepad holder is designed to be mounted within a car, thus providing the user with an easy writing surface to jot down notes while driving or while using a mobile/cellular phone. This type of notepad holder typically uses a suction cup to mount to the inside surface of the windshield.
From the foregoing, it is apparent that what is needed is a compact, multifunctional paper holding system. The present invention provides such a system.
SUMMARY OF THE INVENTION
The present invention provides a paper management system for use in a typical office environment. The system includes multiple components that can be used individually, or in conjunction with other components of the system.
In one aspect of the invention, a copy stand is provided that is designed to accommodate a variety of paper sizes. The copy stand includes a base stand and a copy holder. The copy holder can be removed from the base stand, thus allowing it to be used independently as a clip board. The copy holder can be attached to the base stand along either of at least two edges, allowing the copy holder to be used in either a portrait or a landscape configuration. When attached, the copy holder can be rotated about the base stand, thus allowing the relative angle between the user and the copy holder to be varied.
In another aspect of the invention, the copy holder includes at least one clip, and preferably at least two different types of clips. The clips are used to hold papers and documents against the copy holder as well as provide a means of highlighting or marking regions of particular interest on a document page. The clips can be mounted to any edge of the copy holder and, through the use of a series of guides, easily repositioned along a given edge.
In yet another aspect of the invention, a paper organizer is provided. The paper organizer is designed to fit within an opening in the base stand of the copy holder. The organizer can either be used in a stand-alone mode or while it is held within the base stand, assuming that the copy holder is not attached to the base stand and that the copy holder support is retracted (i.e., fully rotated backwards). The paper organizer includes a plurality of curved document support members, the combination of curvature and support member spacing insuring that the documents within the organizer remain in an upright position. Additionally, due to the incline of the upper surface of the organizer base, the upper edges of the documents held within the organizer are at varying heights, thus allowing the documents to be easily identified and withdrawn from the organizer.
In yet another aspect of the invention, a copy holder is provided that can be attached to either upper corner of a computer monitor. The copy holder is attached to the monitor via a combination of a mounting bracket and a support member which allows the position of the copy holder relative to the monitor to be varied. The copy holder includes a clip, thus providing a means of holding a document to the holder. Additionally, the copy holder includes a cavity designed to accommodate a small notepad.
A further understanding of the nature and advantages of the present invention may be realized by reference to the remaining portions of the specification and the drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is an illustration of the front surface of the flat portion of a copy stand according to present invention;
FIG. 2
is a cross-sectional view of a clip for use with the present invention;
FIG. 3
is a cross-sectional view of an alternate clip embodiment;
FIG. 4
is a perspective view of the copy stand base according to the present invention in which the stand support member is fully rotated backwards;
FIG. 5
is a perspective view of the copy stand base shown in
FIG. 4
with the stand support member fully rotated forwards;
FIG. 6
is an illustration of the back surface of the flat portion of the copy stand shown in
FIG. 1
;
FIG. 7
is a top view illustration of a flat portion hinge member according to the invention;
FIG. 8
is a cross-section of the hinge member shown in
FIG. 7
along a plane A—A;
FIG. 9
is a cross-section of the hinge member shown in
FIG. 7
along a plane B—B;
FIG. 10
is a top view illustration of a base portion hinge member according to the invention;
FIG. 11
is a cross-section of the hinge member shown in
FIG. 10
along a plane C—C;
FIG. 12
is a cross-section of the hinge member shown in
FIG. 10
along a plane D—D;
FIG. 13
is a perspective view of a paper organizer according to the invention;
FIG. 14
is a top illustration of the paper organizer shown in
FIG. 13
;
FIG. 15
is an illustration of a copy stand mounted to a computer monitor in accordance with the present invention;
FIG. 16
is an exploded reverse view of the copy stand shown in
FIG. 15
; and
FIG. 17
is a cross-section of the copy holder shown in
FIG. 15
along a plane E—E.
DESCRIPTION OF THE SPECIFIC EMBODIMENTS
The present invention provides a paper management system for use in a typical office environment. The system includes multiple components that can be used individually, or in conjunction with other components of the system.
In one aspect of the invention, a copy stand is provided. The copy stand includes a base portion and a removable flat surface portion. A preferred embodiment of the front surface of a removable flat portion
100
is shown in FIG.
1
. Although portion
100
can be made of a variety of materials, preferably it is fabricated from either a thermoplastic or a thermosetting plastic. The size of removable flat portion
100
is large enough to allow a variety of paper sizes to be easily accommodated, including metric sized paper (e.g., A
4
). Although portion
100
is designed to be coupled to a base stand portion, it may also be used as a separate clipboard. As a clipboard, portion
100
provides the user with a firm and flat surface
101
to write on. In order to provide the user with a comfortable grip, the perimeter of portion
100
preferably includes a slightly curved edge
103
. Edge
103
preferably includes a pair of inwardly curved portions
105
that provide a convenient and comfortable location for carrying and holding portion
100
when it is in use as a clipboard.
Removable flat portion
100
includes one or more clips
107
that are used to hold papers against flat surface
101
. Clips
107
can be attached to any of the four edges of portion
100
. Each clip
107
is slideably mounted to portion
100
, thus allowing the user to alter the position of the clip along the edge of portion
100
in order to accommodate papers of varying size and/or shape. To operate clip
107
, the user presses along an edge portion
109
of the clip, thereby causing a portion
111
of the clip to be sufficiently elevated from flat surface
101
to permit papers to be slid between end portion
111
and flat surface
101
.
Clip
107
also includes at least one slot
113
, and preferably contains a pair of slots
113
located on either side of the clip. Slots
113
can be used to hold one or more pages of a document away from surface
101
, thus allowing the user to see the underlying pages. For example, a user may wish to flip back and forth between two pages clipped to surface
101
. To view the second page the user need only fold back the first page, slipping a portion of the first page into slot
113
. The wedge shape of slot
113
keeps the page portion in place. To further enhance the holding ability of slot
113
, an upper clip wing
115
can be formed at a slight angle with respect to a lower clip wing
117
. In other words, clip wings
115
and
117
are preferably not formed in a single plane.
Flat portion
100
preferably also includes at least one ruler clip
119
. As with clip
107
, clip
119
can be slideably mounted to any of the four edges of portion
100
. Furthermore, clip
119
can also be used to hold one or more document pages against surface
101
. Unlike clip
107
, however, clip
119
includes a ruler portion
121
that rests across at least a major portion of surface
101
. Ruler portion
121
is preferably clear with graduated markings. If clip
119
is located such that ruler portion
121
extends along the long axis of surface
101
(e.g., clip
119
placed in the location of clip
107
in FIG.
1
), ruler
121
can be replaced with a similar but longer ruler, thus extending the fall width of surface
101
.
As shown in
FIG. 1
, surface
101
includes a groove
123
. Groove
123
can be used in conjunction with either clips
107
or
119
to provide a better clip tracking system.
FIGS. 2 and 3
are cross-sectional views of clips
107
and
119
, respectively. As shown, flat surface
101
includes three segments
201
-
203
that extend from the back surface. Segments
201
and
202
create a channel into which a portion
205
of either clip
107
or clip
119
extends. Additionally, segments
201
and
202
add rigidity to flat surface
101
without adding substantial weight. Either clip also includes a portion
207
that extends over the front surface of
101
and, in conjunction with back clip portions
205
and
209
, provides a means of holding the clip in place. As shown in
FIG. 2
, portion
207
may only extend a small distance along surface
101
. Alternately, as shown in
FIG. 3
, portion
207
may have sufficient length to include a portion
301
that operates cooperatively with groove
123
to provide an improved clip tracking system. Segment
203
of surface
101
extends substantially between portions
207
and
209
of the clip, thereby providing additional clip stability.
Both clips
107
and
119
include a spring
213
which provides sufficient tension on the clip to hold papers between clip portion
111
and flat surface
101
. Preferably spring
213
is formed simultaneously with the clip and using the same material, thus minimizing cost and labor. Other forms of spring tensioners such as those of common use in the industry can also be used.
FIG. 2
illustrates one configuration of a clip in which back portion
209
extends upward, creating a surface
215
that is complimentary to clip portion
109
. Thus a user can easily compress spring
213
in order to lift clip end portion
111
away from surface
101
, thereby allowing one or more pages to be captured by the clip. As shown, clip end portion
111
also includes a small extension
217
. Extension
217
increases the force on a very limited area of the captured document, creating an improved holding clip.
FIG. 3
illustrates an alternate clip configuration in which clip back portion
209
does not extend substantially beyond spring
213
. Although this configuration makes it more difficult to apply a lot of force to spring
213
, it is adequate for some applications. For example, this configuration is preferred for use with ruler mounting clip
119
since the intent of this clip spring is to simply keep ruler
121
in place, not to exert a lot of pressure on the document being held onto surface
101
.
FIGS. 4 and 5
are perspective views of the copy stand portion
400
according to the invention. Preferably stand
400
is comprised of two members, a base member
401
and a stand support member
403
, both preferably fabricated from either a thermoplastic or a thermosetting plastic. Stand support member
403
is rotatably attached to base
401
, thereby allowing stand member
403
to be placed in a range of positions. Stand support member
403
is shown in two different positions in
FIGS. 4 and 5
. In
FIG. 4
member
403
is fully rotated backwards while in
FIG. 5
member
403
is shown fully rotated forwards.
Base
401
is comprised of two portions, a front portion
405
and a rear portion
407
. A central region
409
is preferably left open, thus providing a storage space for another element of the present invention described fully below. Support member
403
is attached to rear portion
407
. Removable flat portion
100
, i.e., the copy stand, is hingeably attached to front base portion
405
through the use of at least one hinge means
409
and preferably through the use of three hinge means
409
as illustrated. When flat portion
100
is attached to base portion
400
via hinge means
409
, support stand tips
411
contact a ledge on the backside of flat portion
100
, thereby providing stand support. The angle of stand portion
100
relative to base portion
400
is determined by rotating support member
403
, causing stand tips
411
to contact a different ledge on the backside of portion
100
. Preferably a pair of side extensions
413
on support member
403
provide an easy gripping surface when the user adjusts the position of member
403
.
As noted above, portion
100
preferably includes at least one clip
107
that is used to hold papers against surface
101
. Alternately, when portion
100
is attached to base
400
, the user can choose not to use clip
107
, simply allowing the papers to rest on a ledge created by base portion
405
and an upwardly turned base lip
415
.
FIG. 6
is an illustration of a back surface
601
of flat portion
100
. This figure shows segments or ribs
201
and
202
extending from back surface
601
as well as surface edge
203
, the combination of all three providing guides for clips
107
and
119
as described above. Preferably segment
201
is a continuous segment that includes four corner segments
603
. In this embodiment of the invention, the distance that corner segments
603
extend away from back surface
601
is greater than the distance that the remaining portions of segment
201
extend from surface
601
. Due to the height of corner segments
603
, flat portion
100
lies flat on a surface such as a desk. Furthermore, the contour of segment
201
allows portion
100
to fit comfortably on the user's lap when portion
100
is used as a stand-alone clipboard.
Portion
100
includes hinge members
605
on at least two sides, preferably along a long side and a short side of portion
100
as shown. Hinge members
605
are removably coupleable with base portion hinge members
409
. Extending out from back surface
601
are two sets of ledge segments
607
and
609
. Although as shown each set (i.e.,
607
and
609
) includes six pairs of segments, different segment spacing as well as either more or less segments can also be used. In use, when a set of hinge members
605
is coupled to base portion hinge members
409
, support tips
411
intersect and provide support to a pair of ledge segments (i.e., from either set). Thus if the copy stand is used in a portrait mode a pair of segments
609
are used while if the copy stand is used in a landscape mode a pair of segments
607
are used. It should be understood that the design of the copy stand of the present invention allows it to be generally positioned between the user's monitor and the user's keyboard when it is used in the landscape mode and preferably when it is used in either the landscape mode or the portrait mode. By positioning the copy stand in this manner, the user is not required to look to either side of the monitor in order to see the document held on the stand.
FIGS.
7
-
9
and
10
-
12
are detailed illustrations of hinge members
605
and
409
, respectively.
FIG. 7
is a top view illustration of hinge member
605
.
FIG. 8
is a cross-section of hinge member
605
along a plane A—A.
FIG. 9
is a cross-section of hinge member
605
along a plane B—B. Both
FIGS. 8 and 9
illustrate in phantom a rod-like portion
1001
of hinge member
409
. As shown, rod-like portion
1001
is moving in a direction
801
, thus indicating that hinge members
409
and
605
are in the process of being coupled.
FIG. 10
is a top view illustration of hinge member
409
.
FIG. 11
is a cross-section of hinge member
409
along a plane C—C.
FIG. 12
is a cross-section of hinge member
409
along a plane D—D. During hinge member coupling, the members must be brought together in a direction
801
. Once the hinge members are coupled, a pair of shoulders
1003
of member
409
coincide with a pair of shoulders
701
of member
609
. As the two hinge members are rotated with respect to one another, for example during copy stand angle adjustment, shoulder members
701
and
1003
prevent flat portion
100
from accidentally separating from base portion
400
.
FIGS. 13 and 14
provide a perspective view and a top view, respectively, of a paper organizer
1300
according to the invention. Preferably paper organizer
1300
is fabricated from a single piece of either a thermoplastic or a thermosetting plastic. Alternately, organizer
1300
can be fabricated from other materials and/or utilize a multi-component design. For example, organizer
1300
can include a base structure
1301
, such as a non-slip rubber base, thereby preventing organizer
1300
from slipping around the user's desk.
Organizer
1300
is comprised of a base
1303
and a plurality of curved support members
1305
. The footprint of base
1303
preferably matches central region
410
in copy stand base
400
, thereby allowing organizer
1300
to fit within copy stand base
400
. Due to the complementary size of these two components, during storage or non-use organizer
1300
can be placed within base
400
, thus minimizing the amount of lost desk space. Additionally, organizer
1300
can be used while it is in this location, provided that flat portion
100
is not coupled to base
400
and that support structure
403
is rotated backwards into a position such as that shown in FIG.
4
.
As shown, organizer
1300
includes six document support members
1305
. It is to be understood that organizer
1300
can include either fewer or greater numbers of support members. Documents, either single page documents or multiple page documents, fit within spacing
1401
between support members
1305
. Due to the relatively narrow spacing between members
1305
as well as the slight curvature of the members, documents placed between the members remain in an upright position. Additionally, since the top surface of organizer base
1303
is sloped, the top edges of the documents held within successive pairs of members
1305
are at varying heights (i.e., staggered) with documents of the lowest height being closest to the front edge of organizer
1300
. Thus a user is able to not only identify which member pairs hold a document, but also easily withdraw a document from the organizer.
FIGS. 15 through 17
illustrate a copy stand
1500
according to another aspect of the invention. Copy stand
1500
is preferably comprised of four components; a mounting bracket
1501
, a support member
1503
, a copy holder
1505
, and a copy clip
1507
. Although each component of copy stand
1500
can be made from a variety of materials, preferably each component is fabricated from either a thermoplastic or a thermosetting plastic. Mounting bracket
1501
is used to attach copy stand
1500
to a location raised off of the desk surface. Preferably mounting bracket
1501
is attached to either the upper right (as shown) or upper left corner of a computer monitor
1509
, shown in phantom in FIG.
15
. Bracket
1501
can be mounted via hook and loop material, adhesives, or other means to monitor
1509
.
FIG. 16
is an exploded reverse view of copy stand
1500
. As shown, support member
1503
is rotatably attached to both bracket
1501
and copy holder
1505
, thus allowing the position of the copy holder to be varied. Variable position allows the user to place the copy holder in an optimum viewing position during use and swing the copy holder away during non-use. In order to achieve rotatability, support member
1503
fits over a mounting bracket spindle
1601
. Similarly, a spindle
1603
on the back surface of copy holder
1505
fits within a hole
1605
in support member
1503
.
Clip
1507
is similar to clip
107
illustrated in
FIGS. 1 and 6
and is used to hold papers to copy holder
1505
. Preferably clips
1507
and
107
are identical and interchangeable. As with clip
107
, a pair of ledges
1607
extending from the back surface of copy holder
1505
provide a guide to clip
1507
and prevent clip
1507
from unintentionally dropping off.
Included within copy holder
1505
is a cavity
1511
. The size of cavity
1511
is selected to accommodate a specific size personal notepad (e.g., Post-it™ notes). Preferably the size of cavity
1511
is selected to accommodate 3 inch by 3 inch notepads. A pair of extensions
1513
extending from either side of cavity
1511
insures that a notepad
1701
, shown in phantom in
FIG. 17
, is held in place within the cavity. A pair of depressions
1515
at the top and the bottom of cavity
1511
is designed to accommodate a user's fingers, providing easy access to notepad
1701
.
As will be understood by those familiar with the art, the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the disclosures and descriptions herein are intended to be illustrative, but not limiting, of the scope of the invention which is set forth in the following claims.
Claims
- 1. A paper management system, comprising:a base stand, wherein said base stand includes a first hinge portion; a support bracket rotatably attached to said base stand, wherein said support bracket includes a bracket tip; a copy stand, wherein said copy stand includes a second hinge portion along a first edge and a third hinge portion along a second edge, wherein said first hinge portion and said second hinge portion are removably coupleable and wherein said first hinge portion and said third hinge portion are removably coupleable, wherein a back surface of said copy stand includes a plurality of planar surface protrusions extending from said back surface, wherein at least one of said plurality of planar surface protrusions is aligned with said bracket tip when said first hinge portion and said second hinge portion are coupled, and wherein at least one of said plurality of planar surface protrusions is aligned with said bracket tip when said first hinge portion and said third hinge portion are coupled; and a first clip removably coupleable to said copy stand.
- 2. The paper management system of claim 1, wherein said base stand includes three first hinge portions, and wherein said copy stand includes three second hinge portions along said first edge and three third hinge portions along said second edge.
- 3. The paper management system of claim 1, wherein said support bracket includes two bracket tips.
- 4. The paper management system of claim 1, wherein said first hinge portion and said second hinge portion are only coupleable when said first hinge portion and said second hinge portion are aligned substantially along a first plane, and wherein said first hinge portion and said third hinge portion are only coupleable when said first hinge portion and said third hinge portion are aligned substantially along said first plane.
- 5. The paper management system of claim 1, wherein an edge of said back of said copy stand includes a channel defined between a set of guide rails and wherein a back portion of said first clip is interposed between said set of guide rails.
- 6. The paper management system of claim 1, said first clip further comprising a front clip portion coupled to a back clip portion, wherein said front clip portion includes at least one slot, said slot capable of holding a document page folded away from a front surface of said copy stand.
- 7. The paper management system of claim 1, further comprising a second clip removably coupleable to said copy stand, wherein said second clip includes an elongated portion extending substantially across said copy stand.
- 8. The paper management system of claim 7, wherein said elongated portion includes graduated markings.
- 9. The paper management system of claim 1, wherein said back surface of said copy stand includes a plurality of elevated portions, said elevated portions extending away from said back surface further than any other back surface feature providing a level plane on which said copy stand can rest.
- 10. The paper management system of claim 1, said back surface of said copy stand further comprising a continuous planar member extending away from said back surface around a periphery of said back surface, said continuous planar member adding rigidity to said copy stand.
- 11. The paper management system of claim 10, wherein said continuous planar member is contoured to extend variable distances from said back surface at various points around said periphery.
- 12. The paper management system of claim 11, wherein said planar member includes a corner corresponding to each corner of said copy stand and wherein each corner of said contoured continuous planar member extends outwardly from said back surface sufficiently to provide a level resting plane when said back surface of said copy stand is disposed on a leveled surface.
- 13. The paper management system of claim 1, further comprising a paper holder, wherein said paper holder includes a housing having a base portion and said housing having a top surface defining a plurality of document separators, wherein said base portion fits within an opening in said base stand, and wherein adjacent surfaces of said plurality of document separators are cooperatively curved.
- 14. The paper management system of claim 13, wherein a document interposed between a pair of said adjacent surfaces is held upright due to a spacing between said pair of adjacent surfaces and said curvature of said adjacent surfaces.
- 15. The paper management system of claim 13, wherein said base portion of said paper holder is inclined.
- 16. The paper management system of claim 13, wherein said plurality of document separators includes at least six document separators.
- 17. A paper management system, comprising:an attachment bracket; a support bracket rotatably attached to said attachment bracket; a copy stand rotatably attached to said support bracket, wherein a front surface of said copy stand includes a cavity of suitable size to fit a notepad; and a clip removably coupleable to said copy stand, said clip further comprising a front clip portion coupled to a back clip portion, wherein said front clip portion includes at least one slot, said slot capable of holding a document page folded away from the front surface of said copy stand.
- 18. A paper management system, comprising:an attachment bracket; a support bracket rotatably attached to said attachment bracket; a copy stand rotatably attached to said support bracket, wherein a front surface of said copy stand includes a cavity of suitable size to fit a notepad; and a clip removably coupleable to said copy stand, wherein said front surface of said copy stand further comprises a pair of depressions extending into said cavity from opposing cavity sides.
US Referenced Citations (21)
Foreign Referenced Citations (1)
Number |
Date |
Country |
WO 9740483 |
Oct 1997 |
WO |