The present general inventive concept relates generally to a standoff, and particularly, to an adjustable and configurable standoff.
Shopping malls, office buildings, businesses, hospitals, gymnasiums, universities, schools, and other non-residential, and even residential-type edifices, often include doors that are designed to require door pulls as door-opening mechanisms. A conventional door pull may be installed either on both sides of a door, or on one side of a door with a different alternative door-opening mechanism on the other side of the door, such as a push plate, door handle, or touch bar.
The conventional door pull typically includes one, two, or three permanently fixed standoffs, which allow the door pull to be installed away from the door at a predetermined distance, thereby allowing a user to wrap a hand around the door pull and duly comply with industry standards and/or requirements of various regulations such as the Americans with Disabilities Act (ADA).
Often times, door manufacturers are different from door pull manufacturers, for at least the reason that a consumer, customer, or user may desire to purchase the door from one manufacturer, and the door pull from a different manufacturer. As such, when constructing a building, for example, the consumer typically places an order with a first manufacturer for a certain number of doors, and includes specifications for the doors to include pre-drilled holes to allow door pulls, which are ordered from a second manufacturer, to be installed on the doors.
However, due to specification imperfections, misread specifications, mis-measured drillings, and other types of human-error, the doors are often delivered to the consumer with the pre-drilled holes improperly spaced apart. As a result, the conventional door pulls cannot be installed on the door because center-to-center distances between the permanently fixed standoffs do not properly correspond to the pre-drilled holes of the doors, and therefore, either the doors or the door pulls must be reordered. Consequently, time and money are both wasted during the process of reordering properly predrilled doors or re-configured door pulls. Moreover, even if the doors are delivered with pre-drilled holes, thereby requiring the consumer to drill the holes himself/herself, the consumer must be careful to drill the holes to be spaced-apart perfectly, to allow the door pulls to be installed on the doors.
In addition, if the doors are delivered with a pre-drilled cylinder hole for installation of a door lock, then door pulls with offset standoffs may be required to allow the consumer to access the door lock. As such, if the door pulls are ordered and delivered without standoffs, then the door pulls must be reordered, thereby wasting time and money.
Therefore, there is a need for adjustable standoffs allow a consumer to easily arrange standoffs based on the consumer's preferences and/or requirements.
The present general inventive concept provides an adjustable and configurable standoff.
Additional features and utilities of the present general inventive concept will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the general inventive concept.
The foregoing and/or other features and utilities of the present general inventive concept may be achieved by providing an adjustable standoff, including an attachment portion comprising an aperture into which a grip is inserted, a clamp portion disposed on a first end of the attachment portion to control movement of the grip through the aperture, and a protruding portion disposed on a second end of the attachment portion to connect to a first surface of a door.
The clamp portion may include a clamp surface to connect to the protruding portion, and a first clamp fastener receiving aperture disposed within the clamp surface.
The protruding portion may include a set screw receiving aperture, a clamp fastener head receiving aperture, a set screw to be inserted through a second surface of the door into the set screw receiving aperture to mount the protruding portion to the door, and a clamp fastener to be inserted into the clamp fastener head receiving aperture to move the clamp portion toward the protruding portion in response to tightening the clamp fastener, and to move the clamp portion away from the protruding portion in response to extracting the clamp fastener.
The protruding portion may further include a first auxiliary set screw receiving aperture perpendicularly disposed away from the set screw receiving aperture with respect to a first direction, a second auxiliary set screw receiving aperture perpendicularly disposed away from the set screw receiving aperture with respect to a second direction, a first auxiliary set screw to be inserted into the first auxiliary set screw receiving aperture to contact at least a portion of the set screw, and a second auxiliary set screw to be inserted into the second auxiliary set screw receiving aperture to contact at least another portion of the set screw, such that the first auxiliary set screw and the second auxiliary set screw prevent the set screw from being extracted from the set screw receiving aperture.
The clamp fastener head receiving aperture may include a second clamp fastener receiving aperture to receive at least a portion of the clamp fastener through the first clamp fastener receiving aperture.
The clamp portion may reduce movement of the grip in response to moving toward the protruding portion, such that the aperture may contract in size.
The clamp portion may increase movement of the grip in response to moving away from the protruding portion, such that the aperture may expand in size.
The foregoing and/or other features and utilities of the present general inventive concept may also be achieved by providing an adjustable standoff, including an attachment portion comprising an aperture into which a grip is inserted, a clamp portion disposed on a first end of the attachment portion to control movement of the grip through the aperture, an offset portion disposed on a second end of the attachment portion to extend away from the attachment portion in a first direction, and a protruding portion to extend away from the offset portion in a second direction different from the first direction to connect to a first surface of a door.
The clamp portion may include a clamp surface to connect to the offset portion, a clamp fastener head receiving aperture disposed within the clamp surface, and a clamp fastener to be inserted into the clamp fastener head receiving aperture to move the clamp portion toward the protruding portion in response to tightening the clamp fastener, and to move the clamp portion away from the protruding portion in response to extracting the clamp fastener.
The clamp fastener head receiving aperture may include a first clamp fastener receiving aperture disposed within the clamp surface.
The offset portion may include a second clamp fastener receiving aperture to receive at least a portion of the clamp fastener through the first clamp fastener receiving aperture.
The protruding portion may include a set screw receiving aperture, and a set screw to be inserted through a second surface of the door into the set screw receiving aperture to mount the protruding portion to the door.
The clamp portion may reduce movement of the grip in response to moving toward the protruding portion, such that the aperture may contract in size.
The clamp portion may increase movement of the grip in response to moving away from the protruding portion, such that the aperture may expand in size.
These and/or other features and utilities of the present generally inventive concept will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
Various example embodiments (a.k.a., exemplary embodiments) will now be described more fully with reference to the accompanying drawings in which some example embodiments are illustrated. In the figures, the thicknesses of lines, layers and/or regions may be exaggerated for clarity.
Accordingly, while example embodiments are capable of various modifications and alternative forms, embodiments thereof are shown by way of example in the figures and will herein be described in detail. It should be understood, however, that there is no intent to limit example embodiments to the particular forms disclosed, but on the contrary, example embodiments are to cover all modifications, equivalents, and alternatives falling within the scope of the disclosure. Like numbers refer to like/similar elements throughout the detailed description.
It is understood that when an element is referred to as being “connected” or “coupled” to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being “directly connected” or “directly coupled” to another element, there are no intervening elements present. Other words used to describe the relationship between elements should be interpreted in a like fashion (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.).
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a,” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises,” “comprising,” “includes” and/or “including,” when used herein, specify the presence of stated features, integers, steps, operations, elements and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which example embodiments belong. It will be further understood that terms, e.g., those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art. However, should the present disclosure give a specific meaning to a term deviating from a meaning commonly understood by one of ordinary skill, this meaning is to be taken into account in the specific context this definition is given herein.
The adjustable standoff 1000 may be constructed from at least one of metal, plastic, wood, and rubber, etc., but is not limited thereto.
Referring to
Referring to
The clamp portion 1200 may include a clamp surface 1210 and a first clamp fastener receiving aperture 1220, but is not limited thereto.
The clamp portion 1200 may be disposed on a first end of the attachment portion 1100. The leg 1300 may be disposed on a second end of the attachment portion 1100.
The leg 1300 (a.k.a., a protruding portion 1300) may include a set screw receiving aperture 1310, an attachment surface 1320, a first auxiliary set screw receiving aperture 1330, a first auxiliary set screw 1340, a second auxiliary set screw receiving aperture 1350, a second auxiliary set screw 1360, a clamp fastener head receiving aperture 1370, a set screw 1380, and a clamp fastener 1390, but is not limited thereto.
The first auxiliary set screw 1340 may include a twine, a string, a rope, a magnet, a clasp, a hook, a screw, a nail, a bolt, a nut, a washer, and/or any combination thereof, but is not limited thereto.
The second auxiliary set screw 1360 may include a twine, a string, a rope, a magnet, a clasp, a hook, a screw, a nail, a bolt, a nut, a washer, and/or any combination thereof, but is not limited thereto.
The set screw 1380 may include a twine, a string, a rope, a magnet, a clasp, a hook, a screw, a nail, a bolt, a nut, a washer, and/or any combination thereof, but is not limited thereto.
The clamp fastener 1390 may include a twine, a string, a rope, a magnet, a clasp, a hook, a screw, a nail, a bolt, a nut, a washer, and/or any combination thereof, but is not limited thereto.
The set screw receiving aperture 1310 may be disposed on at least a portion of the attachment surface 1320. The attachment surface 1320 may be disposed on a first surface of a door 10. Additionally, the set screw 1380 may be inserted into the set screw receiving aperture 1310 through a second surface of the door 10, opposite with respect to the first surface, such that the adjustable standoff 1000 may be mounted on the first surface of the door 10. Also, the set screw 1380 may be rotated to be tightened within the set screw receiving aperture 1310 in a first direction and extracted from the set screw receiving aperture 1310 in a second direction, using a tool 1, such as a screwdriver or a wrench. Also, an adhesive 2 may be applied to the set screw 1380 prior to insertion within the set screw receiving aperture 1310 to prevent the set screw 1380 from being extracted from the set screw receiving aperture 1310.
The first auxiliary set screw receiving aperture 1330 may be perpendicularly disposed away from the set screw receiving aperture 1310 with respect to a first direction on at least a portion of a first side of the leg 1300. The second auxiliary set screw receiving aperture 1350 may be perpendicularly disposed away from the set screw receiving aperture 1310 with respect to a second direction on at least a portion of a second side of the leg 1300, opposite with respect to the first side of the leg 1300. The first auxiliary set screw receiving aperture 1330 may receive the first auxiliary set screw 1340, and the second auxiliary set screw receiving aperture 1350 may receive the second auxiliary set screw 1360. The first auxiliary set screw 1340 and/or the second auxiliary set screw 1360 may contact at least a portion of the set screw 1380. As such, the first auxiliary set screw 1340 and/or the second auxiliary set screw 1360 may prevent the set screw 1380 from being extracted from the set screw receiving aperture 1310.
The clamp surface 1210 may be moved away from the leg 1300, such that the aperture 1110 may be expanded to facilitate insertion of the grip 100 therein. In other words, the attachment portion 1110 may deform in response to movement of the clamp surface 1210 away from the leg 1300, such that the aperture 1110 may increase in size.
As such, the clamp portion 1200 may control movement of the grip 100 therethrough. The clamp portion 1200 reduces movement of the grip 100 in response to moving toward the leg 1300, and increases movement of the grip 100 in response to moving away from the leg 1300.
The clamp fastener head receiving aperture 1370 may include a second clamp fastener receiving aperture 1371, but is not limited thereto.
The clamp fastener 1390 may include a fastener head 1391 and a fastener body 1392, but is not limited thereto.
Furthermore, the clamp surface 1210 may contact at least a portion of the leg 1300. The clamp fastener head receiving aperture 1370 may be disposed on at least a portion of the first side of the leg 1300. Moreover, the clamp fastener 1390 may be inserted into the clamp fastener head receiving aperture 1370. More specifically, at least a portion of the fastener body 1392 may be inserted into the first clamp fastener receiving aperture 1220 and at least a portion of the second clamp fastener receiving aperture 1371. Also, the clamp fastener head receiving aperture 1370 may receive the fastener head 1391 therein.
As such, the clamp fastener 1390 may be rotated to be tightened within the first clamp fastener receiving aperture 1220 and the second clamp fastener receiving aperture 1371 in a first direction, and extracted from the first clamp fastener receiving aperture 1220 and the second clamp fastener receiving aperture 1371 in a second direction, using the tool 1. As such, the clamp portion 1200 may move toward the leg 1300 in response to tightening the clamp fastener 1390, and move away from the leg 1300 in response to extracting the clamp fastener 1390.
Therefore, the adjustable standoff 1000 may provide flexibility to connect the grip 100 to the door 10. Furthermore, the adjustable standoff 1000 may accommodate various shapes and/or sizes of the grip 100 due to variability in the size of the aperture 1110.
The adjustable standoff 2000 may be constructed from at least one of metal, plastic, wood, and rubber, etc., but is not limited thereto.
Referring to
The attachment portion 2100 may include an aperture 2110, which may be designed to correspond to a shape of the grip 100, such that the grip 100 may slide into and be disposed within at least one aperture 2110.
The clamp portion 2200 may include a clamp surface 2210, a clamp fastener head receiving aperture 2220, and a clamp fastener 2230, but is not limited thereto.
The clamp portion 2200 may be disposed on a first end of the attachment portion 2100. The offset portion 2300 may be disposed on a second end of the attachment portion 2100. In other words, the attachment portion 2100 may be disposed on a first end of the offset portion 2300.
The clamp fastener head receiving aperture 2220 may include a first clamp fastener receiving aperture 2221, but is not limited thereto.
The clamp fastener 2230 may include a twine, a string, a rope, a magnet, a clasp, a hook, a screw, a nail, a bolt, a nut, a washer, and/or any combination thereof, but is not limited thereto.
The offset portion 2300 may include a second clamp fastener receiving aperture 2310, but is not limited thereto.
The clamp surface 2210 may be moved away from the offset portion 2300, such that the aperture 2110 may be expanded to facilitate insertion of the grip 100 therein. In other words, the attachment portion 2110 may deform in response to movement of the clamp surface 2210 away from the offset portion 2300, such that the aperture 2110 may increase in size.
As such, the clamp portion 2200 may control movement of the grip 100 therethrough. The clamp portion 2200 reduces movement of the grip 100 in response to moving toward the offset portion 2300, and increases movement of the grip 100 in response to moving away from the offset portion 2300.
Referring to
Furthermore, the clamp surface 2210 may contact at least a portion of the offset portion 2300. The second clamp fastener head receiving aperture 2310 may be disposed on at least a portion of the offset portion 2300. Moreover, the clamp fastener 2230 may be inserted into the clamp fastener head receiving aperture 2220. More specifically, at least a portion of the fastener body 2232 may be inserted into the first clamp fastener receiving aperture 2221 and at least a portion of the second clamp fastener receiving aperture 2310. Also, the clamp fastener head receiving aperture 2310 may receive the fastener head 2231 therein.
As such, the clamp fastener 2230 may be rotated to be tightened within the first clamp fastener receiving aperture 2221 and the second clamp fastener receiving aperture 2310 in a first direction, and extracted from the first clamp fastener receiving aperture 2221 and the second clamp fastener receiving aperture 2310 in a second direction, using the tool 1. As such, the clamp portion 2200 may move toward the offset portion 2300 in response to tightening the clamp fastener 2230, and move away from the offset portion 2300 in response to extracting the clamp fastener 2230.
As illustrated in
The leg 2400 may include a set screw receiving aperture 2410, an attachment surface 2420, and a set screw 2430, but is not limited thereto.
The leg 2400 may be disposed on a second end of the offset portion 2300. The leg 2400 may extend away from the offset portion 2300 in a second direction different from the first direction.
The set screw 2430 may include a twine, a string, a rope, a magnet, a clasp, a hook, a screw, a nail, a bolt, a nut, a washer, and/or any combination thereof, but is not limited thereto.
The set screw receiving aperture 2410 may be disposed on at least a portion of the attachment surface 2420. The attachment surface 2420 may be disposed on the first surface of the door 10. Additionally, the set screw 2430 may be inserted into the set screw receiving aperture 2410 through the second surface of the door 10, such that the adjustable standoff 2000 may be mounted on the first surface of the door 10. Also, the set screw 2430 may be rotated to be tightened within the set screw receiving aperture 2410 in a first direction and extracted from the set screw receiving aperture 2410 in a second direction, using the tool 1. Also, the adhesive 2 may be applied to the set screw 2430 prior to insertion within the set screw receiving aperture 2410 to prevent the set screw 2430 from being extracted from the set screw receiving aperture 2410.
Therefore, the adjustable standoff 2000 may provide flexibility to connect the grip 100 to the door 10. Furthermore, the adjustable standoff 2000 may accommodate various shapes and/or sizes of the grip 100 due to variability in the size of the aperture 2110.
The present general inventive concept may include an adjustable standoff 1000, including an attachment portion 1100 comprising an aperture 1110 into which a grip 100 is inserted, a clamp portion 1200 disposed on a first end of the attachment portion 1100 to control movement of the grip 100 through the aperture 1110, and a protruding portion 1300 disposed on a second end of the attachment portion 1100 to connect to a first surface of a door 10.
The clamp portion 1200 may include a clamp surface 1210 to connect to the protruding portion 1300, and a first clamp fastener receiving aperture 1220 disposed within the clamp surface 1210.
The protruding portion 1300 may include a set screw receiving aperture 1310, a clamp fastener head receiving aperture 1370, a set screw 1380 to be inserted through a second surface of the door 10 into the set screw receiving aperture 1310 to mount the protruding portion 1300 to the door 10, and a clamp fastener 1390 to be inserted into the clamp fastener head receiving aperture 1370 to move the clamp portion 1200 toward the protruding portion 1300 in response to tightening the clamp fastener 1390, and to move the clamp portion 1200 away from the protruding portion 1300 in response to extracting the clamp fastener 1390.
The protruding portion 1300 may further include a first auxiliary set screw receiving aperture 1330 perpendicularly disposed away from the set screw receiving aperture 1310 with respect to a first direction, a second auxiliary set screw receiving aperture 1350 perpendicularly disposed away from the set screw receiving aperture 1310 with respect to a second direction, a first auxiliary set screw 1340 to be inserted into the first auxiliary set screw receiving aperture 1330 to contact at least a portion of the set screw 1380, and a second auxiliary set screw 1360 to be inserted into the second auxiliary set screw receiving aperture 1350 to contact at least another portion of the set screw 1380, such that the first auxiliary set screw 1340 and the second auxiliary set screw 1360 prevent the set screw 1380 from being extracted from the set screw receiving aperture 1310.
The clamp fastener head receiving aperture 1370 may include a second clamp fastener receiving aperture 1371 to receive at least a portion of the clamp fastener 1390 through the first clamp fastener receiving aperture 1220.
The clamp portion 1200 may reduce movement of the grip 100 in response to moving toward the protruding portion 1300, such that the aperture 1110 may contract in size.
The clamp portion 1200 may increase movement of the grip 100 in response to moving away from the protruding portion 1300, such that the aperture 1110 may expand in size.
The present general inventive concept may also include an adjustable standoff 2000, including an attachment portion 2100 comprising an aperture 2110 into which a grip 100 is inserted, a clamp portion 2200 disposed on a first end of the attachment portion 2100 to control movement of the grip 100 through the aperture 2110, an offset portion 2300 disposed on a second end of the attachment portion 2100 to extend away from the attachment portion 2100 in a first direction, and a protruding portion 2400 to extend away from the offset portion 2300 in a second direction different from the first direction to connect to a first surface of a door 10.
The clamp portion 2200 may include a clamp surface 2210 to connect to the offset portion 2300, a clamp fastener head receiving aperture 2220 disposed within the clamp surface 2210, and a clamp fastener 2230 to be inserted into the clamp fastener head receiving aperture 2220 to move the clamp portion 2200 toward the protruding portion 2400 in response to tightening the clamp fastener 2230, and to move the clamp portion 2200 away from the protruding portion 2400 in response to extracting the clamp fastener 2230.
The clamp fastener head receiving aperture 2220 may include a first clamp fastener receiving aperture 2221 disposed within the clamp surface 2210.
The offset portion 2300 may include a second clamp fastener receiving aperture 2310 to receive at least a portion of the clamp fastener 2230 through the first clamp fastener receiving aperture 2221.
The protruding portion 2400 may include a set screw receiving aperture 2410, and a set screw 2430 to be inserted through a second surface of the door 10 into the set screw receiving aperture 2410 to mount the protruding portion 2400 to the door 10.
The clamp portion 2200 may reduce movement of the grip 100 in response to moving toward the protruding portion 2400, such that the aperture 2110 may contract in size.
The clamp portion 2200 may increase movement of the grip 100 in response to moving away from the protruding portion 2400, such that the aperture 2110 may expand in size.
Although a few embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the appended claims and their equivalents.
Number | Name | Date | Kind |
---|---|---|---|
1597856 | Atkinson | Aug 1926 | A |
1652052 | Rukenbrod | Dec 1927 | A |
2107407 | Burton | Feb 1938 | A |
2344376 | Stone | Mar 1944 | A |
2756088 | Sutter | Jul 1956 | A |
3018081 | Waldbauer | Jan 1962 | A |
3155353 | Small | Nov 1964 | A |
3825358 | Eisenhardt | Jul 1974 | A |
3827739 | Overholser | Aug 1974 | A |
3848838 | Thomas | Nov 1974 | A |
4018465 | Ramler | Apr 1977 | A |
4148113 | Dvorachek | Apr 1979 | A |
D268984 | Bergen | May 1983 | S |
4397489 | Lind | Aug 1983 | A |
4437654 | Chiappetti | Mar 1984 | A |
4437791 | Reynolds | Mar 1984 | A |
4442994 | Logsdon | Apr 1984 | A |
4444370 | Krueger | Apr 1984 | A |
4852291 | Mengo | Aug 1989 | A |
4913479 | Allison | Apr 1990 | A |
4967878 | Adams | Nov 1990 | A |
4971375 | Grecco | Nov 1990 | A |
5231731 | Jones, Jr. | Aug 1993 | A |
5288116 | Donofrio | Feb 1994 | A |
5375295 | Woodward | Dec 1994 | A |
D361033 | Van Beveren | Aug 1995 | S |
5542776 | Reynolds | Aug 1996 | A |
5725264 | Villarreal | Mar 1998 | A |
5836327 | Davis | Nov 1998 | A |
6073920 | Colley | Jun 2000 | A |
6131859 | Giuliano | Oct 2000 | A |
6244557 | Maze | Jun 2001 | B1 |
6254077 | Riley, Jr. | Jul 2001 | B1 |
6257537 | Williams | Jul 2001 | B1 |
6447031 | O'Hanlon | Sep 2002 | B1 |
6708369 | Liao | Mar 2004 | B1 |
6751827 | Fok | Jun 2004 | B1 |
6823562 | Smith | Nov 2004 | B1 |
7284331 | Paddock | Oct 2007 | B2 |
7861982 | McClure | Jan 2011 | B1 |
8215731 | Drach | Jul 2012 | B2 |
9777757 | Murata | Oct 2017 | B2 |
9927052 | Robillard | Mar 2018 | B1 |
9995074 | Hoffman | Jun 2018 | B2 |
10765185 | Wengerd | Sep 2020 | B1 |
10767676 | Cattaneo | Sep 2020 | B2 |
20020109355 | Elliott | Aug 2002 | A1 |
20050095062 | Iverson | May 2005 | A1 |
20070040075 | Moretto | Feb 2007 | A1 |
20080034553 | Wing | Feb 2008 | A1 |
20100322740 | Vestergaard-Jensen | Dec 2010 | A1 |
20110131761 | Campbell | Jun 2011 | A1 |
20130104340 | Hasler | May 2013 | A1 |
20130219678 | Brewster | Aug 2013 | A1 |
20140007381 | Huang | Jan 2014 | A1 |
20140008508 | Weber | Jan 2014 | A1 |
20140082898 | Maunder | Mar 2014 | A1 |
20140197628 | Giraldi | Jul 2014 | A1 |
20140255086 | Wallther | Sep 2014 | A1 |
20160145923 | Hoffman | May 2016 | A1 |
20160265565 | Murata | Sep 2016 | A1 |
20170284870 | Golden | Oct 2017 | A1 |
20180073258 | Mikic | Mar 2018 | A1 |
20190277055 | Rogel | Sep 2019 | A1 |
20190360234 | Alkoby | Nov 2019 | A1 |
20200158281 | Carnevali | May 2020 | A1 |
20200190847 | Roberts | Jun 2020 | A1 |
20210363779 | Bennett | Nov 2021 | A1 |
20220170292 | Dulmes | Jun 2022 | A1 |
Number | Date | Country |
---|---|---|
2657632 | Oct 2013 | EP |
Number | Date | Country | |
---|---|---|---|
20210214966 A1 | Jul 2021 | US |