Patent ID: 12220026

DETAILED DESCRIPTION OF REPRESENTATIVE EMBODIMENTS

While the present invention is susceptible of embodiment in many different forms, there are shown in the drawings and will be described herein in detail specific exemplary embodiments thereof, with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to the specific embodiments illustrated. In this respect, before explaining at least one embodiment consistent with the present invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of components set forth above and below, illustrated in the drawings, or as described in the examples. Methods and apparatuses consistent with the present invention are capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein, as well as the abstract included below, are for the purposes of description and should not be regarded as limiting.

The first and second zipper pull tabs100,200are especially useful for providing added security for various carrying bags, such as purses, briefcases, backpacks, suitcases, and other luggage. Such carrying bags typically have pockets and compartments with zip fasteners which, unfortunately, may be opened inadvertently or without authorization, with unwanted access to the contents of the pockets or compartments. The representative embodiments of the first and second zipper pull tabs100,200may be utilized in these environments, including substituting for zipper pulls on existing products without any significant retrofitting. In addition, the first zipper pull tab100may be utilized in a wide variety of contexts, such as for locking a single zipper slider to a D-ring, another fastener, or another object, for example and without limitation.

Accordingly, the exemplary or representative zipper pull tab fasteners may be referred to as “interlocking”, such as for the first fastening system embodiment in which the first and second zipper pull tab fasteners100,200are coupled to each other (i.e., are interlocked), and they may be equivalently referred to more generally as “locking”, such as for the second and third fastening system embodiments, in which the exemplary or representative first zipper pull tab fastener100is utilized to lock to another object, such as a coupling ring305,315.

FIG.1is a diagram illustrating an isometric view of an exemplary or representative first zipper pull tab100embodiment in a closed configuration.FIG.2is a diagram illustrating an isometric cut-away view of an exemplary or representative first zipper pull tab100embodiment in a closed configuration.FIG.3is a diagram illustrating an isometric view of an exemplary or representative first zipper pull tab100embodiment in an open configuration.FIG.4is a diagram illustrating a plan view of a first, top side of an exemplary or representative first zipper pull tab100embodiment in a closed configuration.FIG.5is a diagram illustrating a plan view of a second, bottom side of an exemplary or representative first zipper pull tab100embodiment in a closed configuration.FIG.6is a diagram illustrating a plan view of a lateral side of an exemplary or representative first zipper pull tab100embodiment in a closed configuration.FIG.7is a diagram illustrating an enlarged isometric view of a first end135of an exemplary or representative gate120of an exemplary or representative first zipper pull tab100embodiment.FIG.8is a diagram illustrating an enlarged isometric view of an end130of an exemplary or representative hook115of a body110of an exemplary or representative first zipper pull tab100embodiment.FIG.9is a diagram illustrating an isometric view of exemplary or representative body110and gate120components in a disassembled state of an exemplary or representative first zipper pull tab100embodiment. The various Figures also illustrate optional stylized logos and names which should not be confused with structural components, namely, the “T” logo and “Travelon” name and logo, both of which may be applied as an option to the first and/or second zipper pull tabs100,200.

Referring toFIGS.1-9, the exemplary or representative first zipper pull tab100comprises a body (or body portion)110and an elongated, generally cylindrical gate or closure member120, referred to as a gate120. A gate120may also be referred to equivalently as a closure, a rod, etc., and is described in greater detail below. The body110further comprises a hook (or hook portion)115(at a first end of the body110) and a (first) base (or base portion)105, with the base105further having a C-shaped coupling155(at a second end of the body110, and arranged for coupling to a zipper slider250through a zipper slider coupling255(as illustrated inFIGS.16-17)), and the gate120is disposed or arranged and pivotably moveable within a generally rectangular, cuboid cavity or recess195of the base105. The hook115is typically integrally-formed with the base105(at second end147of the hook115), is generally elongated with a C-shaped curvature and extends from the upper part of the base105with a generally straight, elongated rectilinear portion145that is generally parallel to the gate120, and a curved portion140, with the hook115curving a first ninety degrees (curve142) to a generally straight, rectilinear (tip of the curve) portion146and curving a second ninety degrees (curve144) to terminate at a hook terminus or first end130as illustrated.

When the gate120is in a closed position or configuration as illustrated inFIGS.1and2, the hook terminus or first end130generally abuts a first terminus or first end135of the gate120, such that the hook115and the gate120create or define a first interior region150(opening or gap) for fastening to an object such as a second zipper pull tab200(as illustrated and discussed below with reference toFIGS.15-20), or to an attachment ring of a purse, briefcase, suitcase, or other carrying bag (as illustrated and discussed below with reference toFIGS.21and22). The curved portion140of the hook115has a generally constant thickness or slightly tapering thickness, while the elongated rectilinear portion145has a tapering thickness as an option (tapering from the second end147to the first end130and/or rectilinear portion (tip)146of the curve140), also as illustrated and discussed below. Also, while illustrated as having substantially rounded edges, those having skill in the art will recognize that innumerable other designs are available and are substantially equivalent, as illustrated in the various Figures, for example and without limitation.

(To avoid confusion with the base210of the second zipper pull tab200described below, the base105may also be referred to as a first base, while the base210may also be referred to as a second base; the context of the reference to the bases, along with use of the reference numerals for a base105and a base210, however, should be sufficient to differentiate and distinguish which of the first and second bases105,210is being referred to and avoid any potential confusion.)

For ease of reference, directions and orientations utilized herein are with reference to the lengthwise axis of the gate120(which is the same as the lengthwise axis of the body110), as the longitudinal (x-axis) dimension, with the transverse (or lateral) (y-axis) dimension extending orthogonally from the lengthwise axis of the gate120(or body110) across the base115to the generally straight, rectilinear portion145of the hook115as the width of the first zipper pull tab100, and with the height or thickness (z-axis or applicate) dimension extending orthogonally to both the longitudinal dimension and the transverse (lateral) dimension, e.g., across the thickness of the first zipper pull tab100, as will be apparent to those having skill in the art from the following disclosure, for example, the transverse dimension being north or south to an east-west longitudinal dimension. Similar directions and orientations are also applicable to the second zipper pull tab200.

The base105has a generally rectangular, cuboid first cavity or recess195extending longitudinally and transversely within the base105as illustrated in cut-away view inFIG.2, to receive the generally cylindrically-shaped gate120and a bias (or return) spring185(generally a helical coil spring, but may be any type of spring, such as a leaf spring), which provides a bias or return force to maintain the gate120in a generally closed configuration in the first zipper pull tab100as illustrated inFIGS.1,2, and4-6. The bias spring185is mounted or coupled within a second, internal recess or cavity190(located within the first cavity or recess195of the base105), and is further coupled to a comparatively small, elongated or protruding tab180of the gate120. The bias spring185is typically at least slightly compressed when the gate120is in a closed position or configuration, which tends to maintain the gate120in the closed position or configuration unless manipulated and opened by a user. Those having skill in the art will recognize innumerable variations on how the bias spring185may be arranged within the first zipper pull tab100(e.g., the second recess could be within the gate120and the protruding tab could be within the cavity or recess195, for example and without limitation), and all such variations are considered equivalent and within the scope of the disclosure.

The base105and the gate120(at a generally wider second end173) generally have first and second matching holes165,175(shown inFIG.9), respectively, to receive a pin coupling170(or equivalently a rivet, or tubular or grommet coupling), which secures the gate120to the base105, and provides a pivoting axis for the gate120, such that the gate120is pivotable or otherwise moveable transversely (laterally) within the cavity or recess195, for movement between an open configuration (or position) illustrated inFIG.3and a closed configuration (or position) illustrated inFIGS.1,2and4-6, with the direction of movement illustrated by arrow192(inFIGS.1and2). Those having skill in the art will recognize that the gate120may be coupled to the body110and/or base105in many different ways, and with many different kinds of movement, all of which are considered equivalent and within the scope of the disclosure. (It should be noted that in addition to a cylindrical shape having a generally circular cross section, it is possible for the gate120to have any of other myriad different shapes, such as (in cross section) square, rectangular, elliptical, hexagonal, octagonal, etc., provided, however, that the gate120should be pivotably moveable (transversely) through at least a portion of the first interior region (opening)150for this type of gate120, as discussed below, for representative locking configurations or fastening systems. It should also be noted that the cavity or recess195may also have any of myriad shapes and sizes. All such variations are considered equivalent and within the scope of the disclosure.) Many other types of zipper pull tabs100, with many other types of gates120, with different types of couplings to different types of bodies110, and with different types of gate120movements (such as sliding, reciprocating, pinching, rotational, lever, etc.) are illustrated and discussed below with reference toFIGS.24-26.

In a representative embodiment as illustrated, a gate120comprises a generally cylindrical shaft (or rod)122portion and an optional grip125, typically for feeling or grasping by a user's thumb or other finger (while holding the exemplary or representative first zipper pull tab100with other fingers or another hand) to thereby push the gate120, manually depress bias spring185further and pivot (or otherwise manipulate) the gate120into an open configuration or position as illustrated inFIG.3, in which the first terminus or end135of the gate120is positioned within the first interior region (opening)150, such as to insert or remove an object such as a post215of a second zipper pull tab200, or an attachment ring (305,315) of a purse, briefcase, suitcase, or other carrying bag. Stated another way, the optional grip125can be utilized to provide a tactile landmark or feedback for a user to easily or readily position a thumb or finger to move and pivot the gate120to open the first zipper pull tab100, such as for coupling or uncoupling the first zipper pull tab100to or from such an object. In an exemplary or representative embodiment, the optional grip125may have any of a plurality of shapes or sizes, symmetric or asymmetric, such as button-shaped, pear-shaped, triangular, rectangular, spherical, tab-shaped, bulb or bulbous-shaped or, as illustrated, half elliptical or ovoid, i.e., any shape for a user to grasp and/or slide with a user's thumb or fingers, for example and without limitation. In an exemplary or representative embodiment, the optional grip125is located at or about the upper one-third to one-half of the shaft122portion (from the termination or end135), for the user to continue to be able to grasp or maintain pressure on the gate120when fully moved into the first interior region (or opening)150.

The base105of the body110also has a coupling155, illustrated as a C-shaped, integrally formed extension from the base105, which defines or creates an opening160, for coupling to a zipper slider250(through a zipper coupling255). As illustrated inFIG.6, the base105of the body110has a substantially flat form factor, namely, a generally uniform thickness “A”, while the C-shaped coupling155tapers significantly in thickness, such as between 50% to 70%, from the regions157having a thickness “A” (e.g., 4.7 mm) to a smaller or lesser thickness (z-axis) at the first end156of the first zipper pull tab100having a thickness “B” (e.g., 1.6 mm). This structural tapering in thickness is functional, not merely aesthetic, and helps enable the first zipper pull tab100to lie comparatively flat against zipper teeth260when in use. In a representative embodiment, the thickness ratio A:B ranges from (or equal to) 2:1 to 4:1, or more particularly from (or equal to) 2.5:1 to 3.5:1, or more particularly from (or equal to) 2.8:1 to 3.1:1, or more particularly from (or equal to) 2.9:1 to 3.0:1, or more particularly about 3:1. Other methods of attaching the first zipper pull tab100to a zipper slider250, such as a swivel attachment, as known in the mechanical arts, may be utilized equivalently, and those having skill in the art will recognize innumerable fixed, swiveling and/or rotatable structures and methods for securing a body110of first zipper pull tab100to a zipper slider250, with examples illustrated in various Figures, and all such mechanisms and methods are considered equivalent and within the scope of the present disclosure.

Similarly, the hook115of the body110, together with the gate120, as mentioned above, defines or create a first interior region (or opening)150, for coupling or fastening to an object such as a post215of a second zipper pull tab200, or to an attachment ring of a purse, briefcase, suitcase, or other carrying bag. As illustrated, the base105tapers transversely at an angle α (alpha) (or equivalently, 180°−α) between 30 to 45 degrees, or more particularly between 35 to 40 degrees, or more particularly between 38 to 39 degrees, or more particularly about 38.5 degrees, from a full width “D” to a substantially smaller width “E” at the second end147and rectilinear portion145of the hook115(e.g., 11 mm tapering to about 2.3 mm). In a representative embodiment, the width ratio D:E ranges from (or equal to) 4:1 to 6:1, or more particularly from (or equal to) 4.5:1 to 5.5:1, or more particularly from (or equal to) 4.6:1 to 5.0:1, or more particularly from (or equal to) 4.7:1 to 4.9:1, or more particularly about 4.8:1. This structural tapering in width is also functional, not merely aesthetic, providing support for the gate120in the recess195(in the open configuration) while concurrently limiting the amount of the base105near the second end173of the gate120, allowing greater access to the interior region150when the gate is in the recess195(in the open configuration).

Also as illustrated, the generally straight, rectilinear portion145of the hook115also tapers significantly in thickness, such as between 45% to 65% of the thickness “A”, from the second end (or region)147of the hook115(e.g., 4.7 mm) (also having a thickness “A”) (typically integrally formed with the base105) to a smaller or lesser (second or third) thickness “C” (z-axis) at the rectilinear (tip of the curve) portion146(e.g., 2.6 mm). This structural tapering in thickness is also functional, not merely aesthetic, and helps enable the first zipper pull tab100to readily lock to second zipper pull tab200when in use without creating excessive thickness, so both tabs100,200collectively lie comparatively flat against zipper teeth260when interlocked in use. In a representative embodiment, the thickness ratio A:C ranges from (or equal to) 3:1 to 1.5:1, or more particularly from (or equal to) 2.5:1 to 1.5:1, or more particularly from (or equal to) 2.0:1 to 1.7:1, or more particularly from (or equal to) 1.9:1 to 1.7:1, or more particularly about 1.8:1.

Given that the base105of the body110has a substantially flat form factor, and that the hook115and C-shaped coupling155both taper in thickness, the first zipper pull tab100overall maintains a substantially flat form factor. Stated another way, there are no components which protrude further in the z-axis direction away from the top side107or the bottom side103of the base105(or protrude further in the z-axis direction away from the x-y planes formed by the top side107or the bottom side103of the base105), allowing the first zipper pull tab100to be substantially flat and lie flat against and in parallel with a zipper265. This provides additional security, as the first zipper pull tab100does not protrude from a carrying bag310, serving to diminish the probability of an inadvertent catching or snagging of the first zipper pull tab100and any unwanted opening of a zipped pocket or compartment in the carrying bag310.

Referring toFIGS.7and8, additional details of the first end135of the gate120and the end130of the hook115are illustrated. As illustrated, the first end135of the gate120and the end130of the hook115have mating arrangements or configurations to diminish or minimize movement of the gate120relative to the body110when the gate120is in a closed configuration. The end130of the hook115has surfaces or faces132, extending both in the longitudinal and transverse dimensions, and the first end135of the gate120also has mating surfaces or faces137, also extending both in the longitudinal and transverse dimensions. As a result, the gate120may be moved and pivoted transversely only within the first interior region (opening)150, with other transverse movement away from the body110stopped or prevented by the end130of the hook115. Secondly, the end130of the hook115has a (second) tab (or tab structure), protrusion or extension136(with faces129symmetrically on each side), and the first end135of the gate120has a mating recess or cavity139(which extension and cavity also may be reversed with respect to the other), which are engaged with each other when the gate120is in a closed configuration and which generally stop or prevent any significant movement of the gate120in the z-axis. Those having skill in the art will recognize that the arrangements of the mating recess or cavity139at the first end135of the gate120and the tab136at the end130of the hook115may be reversed: equivalently, the tab, protrusion or extension136may be arranged or positioned at the first end135of the gate120and the mating recess or cavity139may be arranged or positioned at the end130of the hook115(not separately illustrated).

In the illustrated representative embodiment of the first zipper pull tab100, when the gate120is in a closed position or configuration, the gate120is substantially parallel to the straight, elongated rectilinear portion145of the hook115(and more generally, the side121of the body110). This creates an overall, aesthetic appearance of the first zipper pull tab100as a generally flat, rectangular cuboid having curvilinear corners.

It should also be noted, however, that the first zipper pull tab100may have any of a plurality of shapes and sizes, all of which are considered equivalent and within the scope of the disclosure, including those illustrated inFIGS.24-26. It should be noted further that in addition to the spring biased gate120opening inwardly into the first interior region (opening)150, the first zipper pull tab100may have any of a plurality of opening (unlocking) and closing (locking) mechanisms, all of which are considered equivalent and within the scope of the disclosure, including those illustrated inFIGS.24-26.

In addition, those having skill in the art will recognize that the size, shape and material selection for first zipper pull tab100(e.g., gate120and body110) should be sufficiently strong for its or their intended use and application, and are typically determined based on their application and anticipated stress or weight load, along with aesthetic considerations, such as for a light purse compared to a heavy suitcase (e.g., comprising a material such as a metal or metal alloy, a polymer, a plastic, carbon fiber, wood, etc., as described below), also for example and without limitation.

In use, the first and second zipper pull tabs100,200are each generally grasped by a user, such as with a thumb on a top side107and a forefinger on a bottom side103of the first zipper pull tab100(or vice-versa), or on a top side211(illustrated as top side211A for the (second) base210and top side211B for the cover205, collectively referred to as top side211for the second zipper pull tab200) and a forefinger on a bottom side212of the second zipper pull tab200(or vice-versa), and used to pull a zipper slider250to open or close a zipper265having zipper teeth260(illustrated inFIGS.16and17). Any type of zipper265and corresponding zipper slider250may be utilized with the first and second zipper pull tabs100,200, including zippers265having single and double rows of zipper teeth260, with a single row of zipper teeth260illustrated inFIGS.16and17. As such, the first zipper pull tab100and second zipper pull tab200typically have comparatively small but readily graspable form factors. For example, an exemplary or representative embodiment of a first zipper pull tab100typically has a length of about 20-50 mm, (e.g., 37-38 mm), and a width of about 5-15 mm, (e.g., 11 mm), while having a thickness (which may be variable, as discussed below) of about 1-10 mm, (e.g., 1.6 to 4.7 mm). Also for example, an exemplary or representative embodiment of a second zipper pull tab200typically has a length of about 20-50 mm, (e.g., 38 mm), and a width of about 5-15 mm, (e.g., 11 mm), while having a thickness (which may be variable, as mentioned above) of about 1-8 mm, (e.g., 1.5 to 6.3 mm).

Those having skill in the art will recognize that there are many available variations of the first zipper pull tab100, varying the gate120closure mechanisms and/or varying the body110and hook115shapes, structures and configurations. Many such variations are illustrated and described below with reference toFIGS.24-26, as additional gate120A-120T closure mechanisms with additional body and hook shapes, structures and configurations for a first zipper pull tab100A-100T, which are all able to function and work with the second zipper pull tab200to have interlocked first and second zipper pull tabs100,200as described below, and all such variations are considered equivalent and within the scope of the claims herein. For example, while there are aesthetic and mechanical variations among them, all of the additional variations of the first zipper pull tab100A-100T have a substantially flat overall form factor to be grasped readily by a user for use as a zipper pull tab and which will lie flat against a zipper265or second zipper pull tab200in use, all have a locking gate120A-120T, all may function and work with the second zipper pull tab200,200A-200D to have interlocked first and second zipper pull tabs100,200as described in greater detail below, and all may be utilized further in the first, second, third and fourth fastening system embodiments, including for locking to another object, such as the various coupling rings305,315. Accordingly, any and all references herein to a first zipper pull tab100will be understood to mean and include any and all of the illustrated first zipper pull tabs100A-100T and any and all other equivalent variations.

FIG.10is a diagram illustrating an isometric view of an exemplary or representative second zipper pull tab200embodiment.FIG.11is a diagram illustrating a plan view of a first side of an exemplary or representative second zipper pull tab200embodiment.FIG.12is a diagram illustrating a plan view of a second side of an exemplary or representative second zipper pull tab200embodiment.FIG.13is a diagram illustrating a top view of a first, top side211A,211B of an exemplary or representative second zipper pull tab200embodiment in a closed configuration.FIG.14is a diagram illustrating a top view of a second, bottom side212of an exemplary or representative second zipper pull tab200embodiment in a closed configuration.

Referring toFIGS.10-14, the exemplary or representative second zipper pull tab200comprises a base210, a cover205, and a post (pillar or rod)215extending between the base210and cover205. The second zipper pull tab200also has a coupling220, illustrated as a C-shaped extension from the respective proximal ends235,207of the base210and the cover205, which defines or creates an opening225, for coupling to a zipper slider250(through a zipper coupling255). The cover205has a proximal end207and a distal end203, and the base210also has a proximal end235and a distal end230. The cover205and the base210are coupled to each other at their respective proximal ends, forming a curved wall or face245, as illustrated. Also as illustrated, the post215extends between the base210and cover205, from (or between) approximately the middle third (or the distal portion of the proximal half) of the base210to at or near the distal end203of the cover205, with the base210, cover205and post215creating or defining a second interior region (or opening)240.

As discussed in greater detail below, gate120is opened, the hook115of the first zipper pull tab100is inserted into the second interior region (or opening)240, the gate120is closed, and the first zipper pull tab100is then locked around the post215, interlocking the first and second zipper pull tabs100,200. The post215is illustrated as generally elliptical (oval) in cross section (x-y axis), and comparatively larger dimensions along the major and minor axes where the post215joins (and is usually integrally formed with) the cover205and base210. It will be appreciated by those having skill in the art that the post215, the cover205, and the base210may have innumerable shapes and sizes, all of which are considered equivalent and within the scope of the disclosure. For example and without limitation, the post215in cross section may be circular, square, rectangular, hexagonal, octagonal, triangular, etc. In addition, the post215is not required to be solid and continuous; however, any gap in the post215should be smaller than the thickness of the hook115of the first zipper pull tab100to avoid the hook115from inadvertently falling or sliding out of the second interior region (or opening)240when the first and second zipper pull tabs100,200are supposed to be interlocked. While illustrated as having one post215, those having skill in the art will recognize that additional posts215may be utilized in a second zipper pull tab200, and may be spaced together or spaced apart, to the extent interlocking configurations can continue to be implemented. In addition, those having skill in the art will recognize that the size, shape and material selection for the post215, cover205, base210, and coupling220should be sufficiently strong for its or their intended use and application, and are typically determined based on their application and anticipated stress or weight load, along with aesthetic considerations, such as for a light purse compared to a heavy suitcase, also for example and without limitation, as mentioned above for the first zipper pull tab100, and also as described in greater detail below.

In a representative embodiment, the size(s) of the diameter (or width and length) of the post215, in the x-y plane of the second zipper pull tab200, and the position of the post215with respect to the wall or face245, are determined comparatively or relatively to the dimension of the first zipper pull tab100. More specifically, the diameter (or width and length) of the post215is comparatively sized to be generally greater than the allowable amount of opening of the gate120, when the gate120is in a closed configuration and the first and second zipper pull tabs100,200are interlocked in the second interlocked state (or configuration) as discussed in greater detail below. Also, the position of the post215, with respect to the wall or face245, is comparatively located or arranged to block or diminish any significant opening of the gate120when the first and second zipper pull tabs100,200are interlocked in the second interlocked state (or configuration), also as discussed in greater detail below.

The second zipper pull tab200also has a coupling220, illustrated as a C-shaped extension integrally from both the cover205and the base210, which defines or creates an opening225, for coupling to a zipper slider250(through a zipper coupling255). As illustrated, the C-shaped coupling220also tapers significantly in thickness, such as between 50% to 70%, from the regions241,243having a thickness “F” (e.g., 4.7 mm) to a smaller or lesser thickness (z-axis) at the end247having a thickness “G” (e.g., 1.6 mm). This structural tapering in thickness is also functional, not merely aesthetic, and also helps enable the second zipper pull tab200to lie comparatively flat against zipper teeth260when in use. In a representative embodiment, the thickness ratio F:G ranges from (or equal to) 2:1 to 4:1, or more particularly from (or equal to) 2.5:1 to 3.5:1, or more particularly from (or equal to) 2.8:1 to 3.1:1, or more particularly from (or equal to) 2.9:1 to 3.0:1, or more particularly about 3:1. It should also be noted that the second zipper pull tab200has an overall thickness “H” (e.g., 6.29 mm), with H>A. The second interior region (or opening)240also has a maximum height of “J”, with the height “J” also tapering toward the wall or face245, and with the height “J” greater than and generally tracking or corresponding to the tapering of the thickness of the hook115discussed above and as illustrated.

Other methods of attaching the second zipper pull tab200to a zipper slider250, such as a swivel attachment, as known in the mechanical arts, may be utilized equivalently, and those having skill in the art will recognize innumerable fixed, swiveling and/or rotatable structures and methods for securing a base210or base210and cover205of a second zipper pull tab200to a zipper slider250, and all such mechanisms and methods are considered equivalent and within the scope of the present disclosure. It should also be noted that the second zipper pull tab200may have any of a plurality of shapes and sizes, all of which are considered equivalent and within the scope of the disclosure

An additional feature of the second zipper pull tab200is that the distal end230of the base210having a first thickness “L” is comparatively thicker than the proximal end235having a second thickness “K”, such as about 30%-80% thicker (e.g., a distal end230thickness “L” of 2.50 mm compared to thickness “K” of about 1.5 mm at the proximal end235). This structural tapering in thickness is also functional, not merely aesthetic, and also enables the second zipper pull tab200to exert pressure against the first zipper pull tab100in the interlocked configurations, serving to prevent inadvertent sliding of the first and second zipper pull tabs100,200apart from each other and stabilizes the interlocked configurations. In a representative embodiment, the thickness ratio L:K ranges from (or equal to) 4:1 to 1.25:1, or more particularly from (or equal to) 2:1 to 1.25:1, or more particularly from (or equal to) 1.75:1 to 1.25:1, or more particularly from (or equal to) 1.75:1 to 1.5:1, or more particularly about 1.67:1.

Those having skill in the art will recognize that there are many available variations of the second zipper pull tab200, varying the post215structure and configuration, and cover205and base210shapes, structures and configurations. Many such variations are illustrated and described below with reference toFIG.27, as additional post215A-215D structures and configurations with additional cover205A-205D205D and base210A-210D shapes, structures and configurations for a second zipper pull tab200A-200D, which are all able to function and work with the first zipper pull tab100to have interlocked first and second zipper pull tabs100,200as described below, and all such variations are considered equivalent and within the scope of the claims herein. For example, while there are aesthetic and structural variations among them, all of the additional variations of the second zipper pull tab200A-200D have a substantially flat overall form factor to be grasped readily by a user for use as a zipper pull tab and which will lie flat against a zipper265or first zipper pull tab100in use, all have a post215A-215D structures which will work with a locking gate120,120A-120T,120T, and all may function and work with the first zipper pull tab100to have interlocked first and second zipper pull tabs100,200as described in greater detail below. Accordingly, any and all references herein to a second zipper pull tab200will be understood to mean and include any and all of the illustrated second zipper pull tabs200A-200D and any and all other equivalent variations.

FIG.15is a diagram illustrating an isometric view of exemplary or representative first and second zipper pull tab100,200embodiments and a first fastening system300embodiment in an interlocked configuration.FIG.16is a diagram illustrating an isometric view of exemplary or representative first and second zipper pull tab100,200embodiments coupled to respective zipper sliders250and illustrating a first fastening system300embodiment in an interlocked configuration.FIG.17is a diagram illustrating a plan, top view of exemplary or representative first and second zipper pull tab100,200embodiments coupled to respective zipper sliders250and illustrating a first fastening system300embodiment in an interlocked configuration.FIG.18is a diagram illustrating a plan, top cut-away view of exemplary or representative first and second zipper pull tab100,200embodiments in a first interlocked state or configuration275, in which the cover205is shown in a cut-away view (dotted lines) to illustrate the second interior region (or opening)240in the first interlocked state or configuration275.FIG.19is a diagram illustrating a plan, top cut-away view of exemplary or representative first and second zipper pull tab100,200embodiments in a second interlocked state or configuration280, in which the cover205is shown in a cut-away view (dotted lines) to illustrate the second interior region (or opening)240in the second interlocked state or configuration280.

Referring to the Figures, the locking (interlocking) and unlocking of the first and second zipper pull tabs100,200requires a series or succession of a plurality of movements of the gate120relative to the post215and respective movements of the first and second zipper pull tabs100,200, typically as coupled to respective zipper sliders250as illustrated inFIGS.16and17. This plurality of different and separate movements is effectively implemented and controlled by the configurations and arrangements of the components of the first and second zipper pull tabs100,200. In the exemplary or representative embodiments, three (or more) different movements of the gate120relative to the post215and respective movements first and second zipper pull tabs100,200are utilized. Those having skill in the mechanical arts will recognize, however, that only a plurality (two) of different movements are necessary to achieve at least some locking and security functionality of the present disclosure.

FIGS.20A,20B,20C and20Dserve to illustrate an exemplary or representative sequence of operations to lock together (interlock), as a first fastening system embodiment300, and unlock and separate, the exemplary or representative first and second zipper pull tabs100,200.

In operation, for a first fastening system embodiment300, the first zipper pull tab100interlocks with the second zipper pull tab200, as illustrated inFIGS.15-20. The first and second zipper pull tabs100,200are illustrated as unlocked and uncoupled inFIG.20A. Typically, the first and second zipper pull tabs100,200are brought closely together, and as a first movement, the gate120of the first zipper pull tab100is depressed (into first interior region (opening)150) to have an open position, creating an opening between the hook end130and first end135of the gate120, referred to as an open position or open configuration (illustrated inFIGS.3and20B). As a second and distinct movement, while the gate120is in an open position, the first zipper pull tab100is rotated with respect to the second zipper pull tab200(or both rotated with respect to each other), and as a third movement, the hook115is then inserted into the second interior region (or opening)240and around the post215of the second zipper pull tab200(illustrated inFIG.20B), and the gate120is released, with the force exerted by bias spring185returning the gate120into a closed position, i.e., closing the opening between the hook end130and first end135of the gate120, referred to as an closed position or closed configuration with the hook end130abutting the first end135of the gate120. As a result, the first and second zipper pull tabs100,200are then in an interlocked configuration, illustrated inFIG.20C(the first interlocked state or configuration275). These steps are generally reversed to uncouple the first zipper pull tab100and second zipper pull tab200, as described in greater detail below.

Referring toFIGS.18,19,20C and20D, there are at least two states or positions of the interlocked configuration of the first and second zipper pull tabs100,200, formed by the relative positions or arrangements of the first zipper pull tab100and the second zipper pull tab200. The first interlocked state or configuration275is illustrated inFIGS.18and20C, and is typically created and in place when the first and second zipper pull tabs100,200are initially interlocked or about to be unlocked, as the gate120is fully pivotable across the first interior region (opening)150, and the second end141of the first zipper pull tab100(at the hook115) is spaced apart from the wall or face245of the second zipper pull tab200(at the proximal ends of the base210and cover205). The first and second zipper pull tabs100,200may be uncoupled from this first interlocked state275, by depressing the gate120into the first interior region (opening)150, rotating and removing the hook115from the second interior region (or opening)240and the post215.

The second interlocked state or configuration280is illustrated inFIGS.19and20D, and is typically created as a next step after the first and second zipper pull tabs100,200are initially interlocked, as a fourth separate and distinct movement, by the user pushing or pressing the first and second zipper pull tabs100,200closer together, such that the second end141of the first zipper pull tab100(at the hook115) is closer to or abutting the wall or face245of the second zipper pull tab200(at the proximal ends of the base210and cover205). This operation also moves or cinches the two zipper sliders250closer together, which further helps to maintain the gate120and post215positioned relative to one another in the second interlocked state or configuration280. For this second interlocked state or configuration280, the post215has been positioned, relative to the gate120, to effectively or significantly block the pivoting of the gate120into the first interior region (opening)150, as illustrated using a dashed line inFIG.19.

This blocking is optional and certainly not required to be 100% or otherwise complete. In a first representative embodiment, the gate125may be blocked just to the extent of requiring some (at least minimal) amount of movement of the first and second zipper pull tabs100,200apart from each other, as a separate action or movement performed by a user. In another representative embodiment, the pivoting of the gate120is blocked to the extent which would otherwise be needed to remove the post215from the first interior region (opening)150, i.e., any allowable or remaining gap between the end130of the hook115and the first end135of the gate120should merely be smaller than the diameter (or smallest lateral dimension) of the post215.

For this latter embodiment, the smallest transverse diameter (or width and length) “N” of the post215is comparatively sized to be generally greater than the allowable amount of opening of the gate120“M”, when the gate120is in a closed configuration and the first and second zipper pull tabs100,200are interlocked in the second interlocked state (or configuration)280. For both of these embodiments for the second interlocked state280, the position of the post215, with respect to the wall or face245(distance “P”), is comparatively located or arranged to significantly block opening of the gate120when the first and second zipper pull tabs100,200are interlocked in the second interlocked state (or configuration)280, i.e., P>Q, as illustrated inFIGS.19and20D. Stated another way, in the second interlocked state or configuration280, movement of the gate120into the first interior region150is at least partially blocked by the post215. In a representative embodiment, in the second interlocked state or configuration280, movement of the gate120into the first interior region150is sufficiently blocked by the post215that the first and second zipper pull tabs100,200cannot be completely unlocked from each other (without breaking them) until moved further apart from each other, with corresponding unzipping, to return to the first interlocked state or configuration275.

To return the first and second zipper pull tabs100,200to the first interlocked state275from the second interlocked state280, and further to unlock and separate the first and second zipper pull tabs100,200from each other, several separate and distinct movements by the user are also required, creating significant security from inadvertent or unauthorized opening of a zipper265. From the second interlocked state280, it is insufficient to merely depress the gate120and try to manipulate the first zipper pull tab100away from the second zipper pull tab200, as the gate120is blocked by the post215. Rather, as a first separate and distinct movement, each of the first and second zipper pull tabs100must first be pulled or slid away from each other longitudinally. To perform this additional operation, a user would typically be required to use two hands or several fingers of the same hand, grasping the first zipper pull tab100in a first hand and grasping the second zipper pull tab200in the other hand, for example, and sliding them away from each other. At that point, however, the first and second zipper pull tabs100,200remain locked together, in the first interlocked state or configuration275.

Additional separate and distinct movements are then required to unlock and separate the first and second zipper pull tabs100,200from each other. From the first interlocked state or configuration275, the gate120must be depressed (a second movement) and while depressed, the hook115of the first zipper pull tab100is removed from around the post215and rotated out of the second interior region (or opening)240(third and fourth movements). The first and second zipper pull tabs100,200are only then unlocked and uncoupled, with the respective zipper sliders250moveable by the user.

For this first fastening system embodiment300, it should be noted that in the interlocked configurations of the first and second zipper pull tabs100,200(both first and second states278,280), the base210of the second zipper pull tab200is positioned or arranged directly above (and on the exterior of) the zipper265and, more particularly, directly above and virtually completely covering any opening in the zipper265where the opposing zipper teeth260may not be engaged to each other.

Second, both the first and second zipper pull tabs100,200lie generally flat against each other and the zipper265, as illustrated, providing several advantages. For example, the first and second zipper pull tabs100,200are less likely to be caught or snagged on something else and inadvertently unlocked. Also for example, the aesthetics and design of a purse or bag (having the zipper265) are maintained, as the interlocked first and second zipper pull tabs100,200are comparatively unobtrusive.

Third, the additional thickness of the base210of the second zipper pull tab200as described above creates additional pressure against the bottom side103of the first zipper pull tab100. This also helps maintain the interlocked configuration of the first and second zipper pull tabs100,200from being disturbed and inadvertently opened.

Fourth, the interlocked configuration of the first and second zipper pull tabs100,200are comparatively tamper-resistant and child-resistant.

Fifth, particularly from the second interlocked state or configuration280, it requires several separate and distinct movements by the user, often requiring two hands, to uncouple and unlock the first and second zipper pull tabs100,200. These two different first and second interlocked states or configurations275,280, thereby create significant security and make it difficult for the zipper265to be inadvertently opened, or to be otherwise opened without the user being aware of the activity, such as by a thief or pickpocket, for example.

It should be noted that each of the first and second zipper pull tabs100,200(and components, such as a gate120) may be fabricated, such as machined, molded, printed, stamped, etc., from a wide variety of materials as known or becomes known in the mechanical arts, including coated or uncoated metals or metallic alloys such as aluminum, steel, titanium, carbon steel, nickel, copper, gold, silver, tin, and so on, or any of a variety of compounds such as plastics, polymers or polymeric precursors such as nylon, resins, with or without other embedded components such as carbon fibers, graphene, etc., for example and without limitation. In addition, as mentioned above, the overall size and material selection of the exemplary or representative first and second zipper pull tabs100,200, or any of their components, is typically determined based on their application and anticipated stress or weight load, along with aesthetic considerations, such as for a light purse compared to a heavy suitcase, also for example and without limitation.

FIG.21is a diagram illustrating an isometric view of exemplary or representative first zipper pull tab100embodiments and a second fastening system325embodiment in a locked configuration.FIG.22is a diagram illustrating an isometric view of an exemplary or representative first zipper pull tab embodiment100and a third fastening system350embodiment in a locked configuration.FIG.23is a diagram illustrating an isometric view of exemplary or representative first zipper pull tab embodiments and a fourth fastening system375embodiment in a locked configuration.

In addition to interlocking with the second zipper pull tab200, the first zipper pull tab100may have additional fastening and locking options to create additional fastening system embodiments within the scope of the disclosure. Referring toFIG.21, two first zipper pull tabs100are illustrated, each coupled to a respective zipper slider250with a zipper265of a carrying bag310(only partially shown). As shown, the two first zipper pull tabs100have been locked to a C-shaped coupling305secured or otherwise attached to the carrying bag310. This provides significantly added security to the carrying bag310, as the zippers265may not be unzipped (and corresponding compartments or pockets opened) unless and until one or both of the first zipper pull tabs100have been unlocked (as described above) from the C-shaped coupling305. Not separately illustrated the two first zipper pull tabs100could also be locked to each other, such as through the respective openings160discussed above.

Referring toFIG.22, a single first zipper pull tab100is illustrated, also coupled to a zipper slider250with a zipper265of a carrying bag310(also only partially shown). As shown, the first zipper pull tab100has been locked to a D-shaped ring (or coupling)315secured or otherwise attached to the carrying bag310via loop320. This also provides significantly added security to the carrying bag310, as the zipper265may not be unzipped (and corresponding compartments or pockets opened) unless and until the first zipper pull tab100has been unlocked (as described above) from the D-shaped ring315.

Referring toFIG.23, two first zipper pull tabs100are also illustrated, each coupled to a respective zipper slider250with a zipper265of a carrying bag310(also only partially shown). Rather than being locked to a C-shaped coupling305or a D-shaped ring315, as shown, the two first zipper pull tabs100have been locked to each other, through their respective openings160, via a lock (or shackle)330, which may be a combination lock as illustrated or a keyed lock, or both, such as a TSA-compatible lock. For this embodiment, the openings160have been sized to allow the insertion of the lock330. This also provides significantly added security to the carrying bag310, as the zippers265may not be unzipped (and corresponding compartments or pockets opened) unless and until one or both of the first zipper pull tabs100have been unlocked (as described above) from the lock330. Not separately illustrated the two first zipper pull tabs100could also be locked to the D-shaped ring315and further locked using lock330through the respective openings160as discussed above.

As discussed above, in addition to the design and configuration of the first zipper pull tab100, many more designs and configurations are available and within the scope of the present disclosure.FIGS.24-26are diagrams illustrating many, but far from all, equivalent gate120closure mechanisms and body and hook shapes and configurations for a first zipper pull tab100. For example and without limitation, first zipper pull tab100A has another body and hook configuration with a pull tab configuration for a gate120A; first zipper pull tab100B has another body and hook configuration with a push configuration for a gate120B, similar to gate120; first zipper pull tab100C has another body and hook configuration with a side sliding configuration for a gate120C; first zipper pull tab100D has another body and hook configuration with a face sliding configuration for a gate120D; first zipper pull tab100E has another body and hook configuration with a inset face sliding configuration for a gate120E; first zipper pull tab100F has another body and hook configuration with a face slide configuration forming a gate120F; first zipper pull tab100G has another body and hook configuration with a body and hook slide configuration on a gate120G; first zipper pull tab100H has another body and hook configuration with a side lever configuration for a gate120H; first zipper pull tab100I has another body and hook configuration with a sliding configuration for a gate120I; first zipper pull tab100J has another body and hook configuration with a side pinching or squeezing configuration for a clip-style gate120J; first zipper pull tab100D has another body and hook configuration with a push configuration for a carabiner-style gate120K; first zipper pull tab100L has another body and hook configuration with a push configuration for a gate120L; first zipper pull tab100M has another body and hook configuration with a pull cap configuration for a gate120M; first zipper pull tab100N has another body and hook configuration with a push configuration for a gate120N; first zipper pull tab100P has another body and hook configuration with a slide configuration for a gate120P; first zipper pull tab100Q has another body and hook configuration with a pull tab configuration for a gate120Q; first zipper pull tab100R has another body and hook configuration with a pull tab configuration for a gate120R; first zipper pull tab100S has another body and hook configuration with a pull tab configuration for a gate120S; and first zipper pull tab100T has another body and hook configuration with a pull tab configuration for a gate120T. Those having skill in the art will recognize that all such configurations may be utilized equivalently to the gate120and body and hook configurations for a first zipper pull tab100.

It should be noted that these additional gate120A-120T closure mechanisms and body and hook shapes and configurations for a first zipper pull tab100A-100T are all able to function and work with the second zipper pull tab200to have interlocked first and second zipper pull tabs100,200as described above. In addition, these additional gate120A-120T closure mechanisms and body and hook shapes and configurations for a first zipper pull tab100A-100T are all able to function and work with any and all of the equivalent variations of the second zipper pull tab200described herein to have interlocked first and second zipper pull tabs100,200.

As discussed above, in addition to the design and configuration of the second zipper pull tab200, many more designs and configurations are available and within the scope of the present disclosure.FIG.27are diagrams illustrating isometric views of many, but far from all, equivalent cover and post mechanisms and base configurations for a second zipper pull tab200. For example and without limitation, second zipper pull tab200A has another configuration which effectively combines the functionality of a cover205and post215to have a continuous cover205A and post215A which together have the appearance of a single C-shaped coupling for locking with a first zipper pull tab100; second zipper pull tab200B has another configuration which effectively combines the functionality of a cover205and post215to have a continuous cover205B and post215B which together have the appearance of a rectangular-shaped coupling for locking with a first zipper pull tab100; second zipper pull tab200C has another configuration which effectively rearranges and relocates a cover205and post215to the distal end of the base210to have a distally-located post215C for locking with a first zipper pull tab100; and second zipper pull tab200D has another configuration which effectively combines the functionality of a cover205and post215to have a continuous cover205D and post215D at the distal end of the base210D which together have the appearance of a single, distally-located C-shaped coupling for locking with a first zipper pull tab100.

It should be noted that these additional post215A-215D mechanisms and cover and base shapes and configurations for a second zipper pull tab200A-200D are all able to function and work with the first zipper pull tab100to have interlocked first and second zipper pull tabs100,200as described above. In addition, these additional post215A-215D mechanisms and cover and base shapes and configurations for a second zipper pull tab200A-200D are all able to function and work with any and all of the equivalent variations of the first zipper pull tab100described above to have interlocked first and second zipper pull tabs100,200.

Several unique features and advantages of the various embodiments of the present disclosure are readily apparent. The exemplary embodiments provide for increased security of a fastener, requiring several different and distinct movements to open and unlock the exemplary or representative first and second zipper pull tabs100,200from each other. This also serves to decrease the concerns of a traveler or commuter, for example, knowing that a would-be pickpocket or other thief cannot quickly and surreptitiously undo and open the fasteners, such as to quickly steal contents from a zippered pocket or compartment of a purse, briefcase, shoulder bag or other carrying bag. The exemplary or representative first and second zipper pull tabs100,200may also be implemented aesthetically, with designs which do not look or feel utilitarian but which nonetheless have superior attachment and security functionality.

The present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to the specific embodiments illustrated. In this respect, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of components set forth above and below, illustrated in the drawings, or as described in the examples. Systems, methods and apparatuses consistent with the present invention are capable of other embodiments and of being practiced and carried out in various ways.

Although the invention has been described with respect to specific embodiments thereof, these embodiments are merely illustrative and not restrictive of the invention. In the description herein, numerous specific details are provided, such as examples of structural connections, materials, and structural variations, to provide a thorough understanding of embodiments of the present invention. One skilled in the relevant art will recognize, however, that an embodiment of the invention can be practiced without one or more of the specific details, or with other apparatus, systems, assemblies, components, materials, parts, etc. In other instances, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention. In addition, the various Figures are not drawn to scale and should not be regarded as limiting.

Reference throughout this specification to “one embodiment”, “an embodiment”, or a specific “embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention and not necessarily in all embodiments, and further, are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics of any specific embodiment of the present invention may be combined in any suitable manner and in any suitable combination with one or more other embodiments, including the use of selected features without corresponding use of other features. In addition, many modifications may be made to adapt a particular application, situation or material to the essential scope and spirit of the present invention. It is to be understood that other variations and modifications of the embodiments of the present invention described and illustrated herein are possible in light of the teachings herein and are to be considered part of the spirit and scope of the present invention.

It will also be appreciated that one or more of the elements depicted in the Figures can also be implemented in a more separate or integrated manner, or even removed or rendered inoperable in certain cases, as may be useful in accordance with a particular application. Integrally formed combinations of components are also within the scope of the invention, particularly for embodiments in which a separation or combination of discrete components is unclear or indiscernible. In addition, use of the term “coupled” herein, including in its various forms such as “coupling” or “couplable”, means and includes any direct or indirect electrical, structural or magnetic coupling, connection or attachment, or adaptation or capability for such a direct or indirect electrical, structural or magnetic coupling, connection or attachment, including integrally formed components and components which are coupled via or through another component.

Furthermore, any signal arrows in the drawings/Figures should be considered only exemplary, and not limiting, unless otherwise specifically noted. Combinations of components of steps will also be considered within the scope of the present invention, particularly where the ability to separate or combine is unclear or foreseeable. The disjunctive term “or”, as used herein and throughout the claims that follow, is generally intended to mean “and/or”, having both conjunctive and disjunctive meanings (and is not confined to an “exclusive or” meaning), unless otherwise indicated. As used in the description herein and throughout the claims that follow, “a”, “an”, and “the” include plural references unless the context clearly dictates otherwise. Also as used in the description herein and throughout the claims that follow, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.

For the recitation of numeric ranges herein, each intervening number there between with the same degree of precision is explicitly contemplated. For example, for the range of 6-9, the numbers 7 and 8 are contemplated in addition to 6 and 9, and for the range 6.0-7.0, the number 6.0, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, and 7.0 are explicitly contemplated, for example and without limitation. In addition, every intervening sub-range within range is contemplated, in any combination, and is within the scope of the disclosure. For example, for the range of 5-10, the sub-ranges 5-6, 5-7, 5-8, 5-9, 6-7, 6-8, 6-9, 6-10, 7-8, 7-9, 7-10, 8-9, 8-10, and 9-10 are contemplated and within the scope of the disclosed range, also for example and without limitation.

The foregoing description of illustrated embodiments of the present invention, including what is described in the summary or in the abstract, is not intended to be exhaustive or to limit the invention to the precise forms disclosed herein. From the foregoing, it will be observed that numerous variations, modifications and substitutions are intended and may be effected without departing from the spirit and scope of the novel concept of the invention. It is to be understood that no limitation with respect to the specific methods and apparatus illustrated herein is intended or should be inferred. It is, of course, intended to cover by the appended claims all such modifications as fall within the scope of the claims.