A scupper plug is a water flow control accessory typically used for rigid personal watercraft, such as sit-on-top kayaks, that selectively controls the flow of water through scupper holes. Scupper holes can be formed in the hull of the watercraft and act as drainage points to allow water to drain out of the upper surfaces of the watercraft, such as the seating area, preventing the water from pooling in the seating area and/or making the watercraft unstable. A scupper plug can block or selectively permit the flow of water through the scupper holes.
During use, scupper plugs can be placed in a closed position to block water ingress through the scupper hole, such as while paddling in rough waters or on cold days to minimize water splashing up through the scupper holes and onto the user. In calmer waters, in the rain, and/or after taking water over the top of the watercraft (e.g., after paddling through a wave, wake, or rough water), the scupper plug can be opened to permit water drainage from the upper surfaces of the watercraft and into the water below. Additionally, scupper plugs can provide increased stability and buoyancy, as they prevent water from accumulating in the seating area.
Scupper plugs can be formed to fit snugly into the scupper hole and can have a feature for insertion and removal. These scupper plugs often are formed in different sizes to fit various scupper hole diameters. Scupper plugs are often either installed in the closed position or completely removed to allow drainage through the scupper hole. During drainage, the scupper plug must be set aside where it can be misplaced, requiring frequent replacement with new scupper plugs. Additionally, the set aside scupper plug must then be realigned with the scupper hole to prevent the flow of water, which can be difficult during use of the watercraft (e.g., in rough water conditions). Therefore, it is desirable to retain the scupper plug in the scupper hole during drainage in the open position, as well as maintain alignment with the scupper hole when transitioning between the open and closed positions. Embodiments of a scupper plug in accordance with aspects of the present disclosure provide improved control and performance as compared to known scupper plugs.
The foregoing aspects and many of the attendant advantages of the claimed subject matter will become more readily appreciated as the same become better understood by reference to the following detailed description, when taken in conjunction with the accompanying drawings, wherein:
The detailed description set forth above in connection with the appended drawings, where like numerals reference like elements, are intended as a description of various embodiments of the present disclosure and are not intended to represent the only embodiments. Each embodiment described in this disclosure is provided merely as an example or illustration and should not be construed as preferred or advantageous over other embodiments. The illustrative examples provided herein are not intended to be exhaustive or to limit the disclosure to the precise forms disclosed.
As will be described in more detail below, the present disclosure provides examples of a scupper plug having one or more retention features to releasably capture the scupper plug within the scupper hole in the open position-permitting the flow of water through the scupper hole. The retention features are configured to retain the scupper plug in the open position aligned with and above the scupper hole without needing to remove the scupper plug from the hole, move the scupper plug aside, or hold the scupper plug during draining. In this regard, the motion from the closed position to the open position is substantially axial along a central axis of the scupper hole. Some known scupper plugs have lanyards, chains, or leashes to keep the scupper plug near the scupper hole when draining the personal watercraft; however, such retention features can break, are not capable of maintaining alignment of the scupper plug with the scupper hole in the open position, and can allow the scupper plug to inadvertently fall into and close the scupper hole when draining is still desired. Further, these known scupper plugs must be completely removed from the scupper hole to drain, which leaves the scupper hole open for fountains of water splashing above the watercraft, especially when rougher waters where pressure differentials between the upper and lower surface of the watercraft are greatest. The scupper plugs of the present disclosure are expected to address these and other issues.
In embodiments described herein, the scupper plug has a primary taper configured to contact a tapered surface of the scupper surround, e.g., in the hull of a personal watercraft, and seal the scupper hole within the scupper surround. The scupper plug further includes a secondary taper at a distal end that interfaces with the tapered surface of the scupper surround, but includes one or more cutouts to permit the flow of water through the scupper hole while retaining the scupper plug at least partially within the scupper hole and maintaining axial alignment of the scupper plug and the scupper hole. In these embodiments, the scupper plug includes one or more legs that are capable of bending radially inward during movement of the scupper plug between the closed and open positions, and then elastically extending radially outward at the open position such that the secondary taper interfaces with the taper of the scupper plug to retain the scupper plug in the open position aligned with the scupper hole. The one or more legs can include a distal shoulder configured to interface with the scupper surround to stop axial movement of the scupper plug at the open position. In some embodiments, the distal shoulder can include a fillet to facilitate full removal of the scupper plug with additional pulling force past the open position, e.g., when replacing the scupper plug, if the scupper hole needs to be cleaned, etc. Although the illustrated embodiments show a scupper plug having two bendable legs, any number of legs are within the scope of the present disclosure, such as one leg, three legs, more than three legs, etc.
The scupper plugs of the present disclosure can include a proximal loop that can be manipulated, e.g., grasped by a finger of the user, to transition the scupper plug from the closed position to the open position and/or to remove the scupper plug from the scupper hole. The proximal loop may further include an upper surface that can receive a force, e.g., by a user pressing on the upper surface, to transition the scupper plug from the open position to the closed position and/or to install the scupper plug in the scupper hole. Although the illustrated embodiments show a proximal loop manipulable by a user, the scupper plugs of the present disclosure can include any suitable translation feature that can be manipulated by a user, such as a handle, a knob, a T-shape, a web, a ball, or the like, or can include a separate component for this purpose, such as an over-molded rigid handle (e.g., plastic, metallic, etc.), an embedded feature, or the like.
Although embodiments of the present disclosure may be described with reference to scupper plugs for rigid kayaks, one skilled in the relevant art will appreciate that the disclosed embodiments are illustrative in nature and therefore should not be construed as limited to such an application. It should therefore be apparent that the disclosed technologies and methodologies have wide application, and therefore may be suitable for use with many types of hole plugging architectures, including any personal watercraft, floating platforms, engine-propelled watercraft, and the like. Accordingly, the following descriptions and illustrations herein should not limit the scope of the claimed subject matter.
Although the shape of the scupper surround 102 is shown with only an upper portion for simplicity in the FIGURES, the scupper surround 102 (and scupper hole) can have any depth with respect to the scupper plug. In these embodiments, the scupper hole can be molded into the kayak with the scupper plug only occupying a portion of the scupper hole when assembled. Further, the upper scupper hole taper 104, the scupper hole shoulder 106, and the shape transitioning into the primary scupper hole taper 108 are shown as one example of a scupper surround suitable for use with the embodiments of the scupper plug 110. For example, the upper scupper hole taper 104 and scupper hold shoulder 106 (e.g., a “scupper well”) can be configured to allow user hand clearance to manipulate the scupper plug, retain smaller amounts of water, and/or prevent sharp features on the upper surface of the kayak. In other embodiments, the upper scupper hole taper 104 area can include one or more grooves intended to direct water from various upper surface of the kayak into the scupper well for drainage. In other embodiments, any scupper surround and hole shape can be suitable for use with the scupper plug 110.
As shown in
The scupper plug 110 includes a primary tapered sealing surface 120 positioned below the proximal portion of the scupper plug 110 (e.g., below the clearance shoulder 116). The primary tapered sealing surface 120 can be circumferentially continuous with respect to the central axis A and be configured to interface with the primary scupper hole taper 108 of the scupper surround 102 such that engagement between the primary tapered sealing surface 120 of the scupper plug 110 and the primary scupper hole taper 108 in the closed position is substantially 360° around the primary scupper hole taper 108 such that water cannot bypass the scupper plug 110. Although the primary scupper hole taper 108 is shown as a complementary tapered surface with respect to the primary tapered sealing surface 120, it will be apparent to one skilled in the art that the primary tapered sealing surface is capable of sealing against a variety of surface shapes in the scupper hole, including a rounded surface, a cylindrical surface, and the like.
The scupper plug 110 can further include an intermediate reverse tapered surface 122 to facilitate transition from the closed position to the open position of the scupper plug 110. The reverse tapered surface 122 can be an opposite taper from the primary tapered sealing surface 120 and can function as a ramp during transition from the closed to open positions as will be described below. The scupper plug further includes a secondary tapered surface 126 at a distal end portion that is configured to interface with the primary scupper hole taper 108 when the scupper plug 110 is in the open position (see, e.g.,
The scupper plug 110 can include cutouts through the reverse tapered surface 122, transition peak 124, secondary tapered surface 126, and stopping shoulder 128 to form a first bendable leg 130 and a second bendable leg 140. Although two bendable legs 130 and 140 are shown as created generally by a cutout 150 having a rounded upper area 152 and separated by a central cavity 151, any number of cutouts, any cutout shape, and any form of bendable leg can be used with embodiments of the scupper plug 110. For example, one cutout can form a single bendable leg, while more than two cutouts can form three, four, etc. bendable legs.
The first and second bendable legs 130 and 140 can be configured to translate radially inward toward the central axis A by interaction between the reverse tapered surface 122 and the primary scupper hole taper 108. In this regard, as the scupper plug 110 is transitioned from the closed position (
Returning to the open position of the scupper plug 110 shown in
In some embodiments, the first and second bendable legs 130 and 140 can include inner stiffening ribs 132 and 142, respectively. The stiffening ribs 132 and 142 can be separated by an opening 160 having a rounded transition 162 (see
The scupper plugs described herein can be formed from any suitable material permitting the deformation of the bendable legs as described above. In some embodiments, the scupper plug 110 can be formed from Thermoplastic Vulcanizates (TPV), Thermoplastic Urethanes (TPU), Thermoplastic Olefins (TPO), Styrenic Block Copolymers (SBC), Copolyester Elastomer (COPE), Polyether Block Amide (PEBA), or similar materials. In other embodiments, multiple materials are used to form the scupper plug 110, e.g., one material at the proximal portion and a different material at the distal portion. Other material configurations are also within the scope of the present disclosure.
In the foregoing description, specific details are set forth to provide a thorough understanding of exemplary embodiments of the present disclosure. It will be apparent to one skilled in the art, however, that the embodiments disclosed herein may be practiced without embodying all of the specific details. In some instances, well-known process steps have not been described in detail in order not to unnecessarily obscure various aspects of the present disclosure. Further, it will be appreciated that embodiments of the present disclosure may employ any combination of features described herein.
The present application may reference quantities and numbers. Unless specifically stated, such quantities and numbers are not to be considered restrictive, but exemplary of the possible quantities or numbers associated with the present application. Also in this regard, the present application may use the term “plurality” to reference a quantity or number. In this regard, the term “plurality” is meant to be any number that is more than one, for example, two, three, four, five, etc. The terms “about,” “approximately,” “near,” etc., mean plus or minus 10% of the stated value. For the purposes of the present disclosure, the phrase “at least one of A and B” is equivalent to “A and/or B” or vice versa, namely “A” alone, “B” alone or “A and B.”. Similarly, the phrase “at least one of A, B, and C,” for example, means (A), (B), (C), (A and B), (A and C), (B and C), or (A, B, and C), including all further possible permutations when greater than three elements are listed.
It should be noted that for purposes of this disclosure, terminology such as “upper,” “lower,” “vertical,” “horizontal,” “fore,” “aft,” “inner,” “outer,” “front,” “rear,” etc., should be construed as descriptive and not limiting the scope of the claimed subject matter. Further, the use of “including,” “comprising,” or “having” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. Unless limited otherwise, the terms “connected,” “coupled,” and “mounted” and variations thereof herein are used broadly and encompass direct and indirect connections, couplings, and mountings.
Throughout this specification, terms of art may be used. These terms are to take on their ordinary meaning in the art from which they come, unless specifically defined herein or the context of their use would clearly suggest otherwise.
The principles, representative embodiments, and modes of operation of the present disclosure have been described in the foregoing description. However, aspects of the present disclosure, which are intended to be protected, are not to be construed as limited to the particular embodiments disclosed. Further, the embodiments described herein are to be regarded as illustrative rather than restrictive. It will be appreciated that variations and changes may be made by others, and equivalents employed, without departing from the spirit of the present disclosure. Accordingly, it is expressly intended that all such variations, changes, and equivalents fall within the spirit and scope of the present disclosure as claimed.