Patent Application
20080250997
This invention relates to a three-sided wind scoop for aerating and cooling the interior of a sailboat. The term wind scoop is a commonly used name in the art for a ventilation device designed to direct the flow of fresh air into the interior of a sailboat through an opening such as a hatch on the sailboat.
A major problem often encountered by sail boaters is excessive warmth and humidity that may build up in the interior of the forward cabin of the sailboat when it is at anchor, due to insufficient ventilation throughout the cabin. Preventing this problem and maintaining a comfortable temperature and humidity is particularly personally desirable, since the cabin generally comprises the living and galley space of the sailboat.
Numerous types of wind scoops or ventilators have heretofore been proposed for use in aerating said cabin of a sailboat. However, the present invention comprising a simple three-sided wind scoop possesses numerous advantages not disclosed nor rendered obvious by such prior art.
For example, U.S. Pat. No. 3,757,664 to Jalbert and U.S. Pat. No. 5,327,846 to Androus, both describe a complex constructed 2 part ventilator, requiring (1) a top-half comprising an X-shaped cross-sectional wind scoop for catching or capturing the wind and (2) a bottom-half comprising a hollow column, (in the shape of a diffuser in Jalbert and in the shape of a squared column in Androus) to receive the air from the top-half of the ventilator and direct it into the interior of the boat. Aside from additional advantages and differences, the three-sided wind scoop of the present invention does not require nor employ a two-part wind scoop system such as described and required by either Jalbert or Androus.
An on-line boating wind scoop advertisement by Best Marine Import, Inc. (i.e. http://www.bestmarineimporta.com/Scoops.html) and U.S. Pat. No. 4,706,593 to Vail are both directed to wind scoop constructed-type sails concerned with capturing the wind and directing the air down into the cabin of a sailboat independent with respect to the direction of the wind. The scoop of Best Marine accomplishes its purpose by employing a narrow four chambered spear-like scoop coming to a central point at its top so that it can be held and secured upright, while Vail discloses a more conventional type sail attached to a mast and having wind a mechanism responsive to the direction of the wind for changing the orientation of the sail via a swivel mechanism for rotating the sail on the mast. The present invention does not comprise of a narrow four chambered spear-like scoop as disclosed by Best Marine, but rather a three-sided wind scoop having a far superior surface area for capturing the wind to provide more air for ventilation of the cabin, nor does the present invention involve a conventional sail attached to a mast as described in Vail. Further, an on-line wind scoop advertisement by Torresen Marine, Inc. (i.e., http://torresen.com/shops.store) discloses a one-sided wind scoop ventilator which unlike the present invention must be manually repositioned to capture the wind when either the boat or wind changes direction.
The subject invention relates to a unique three-sided wind scoop for capturing the wind and directing a flow of the fresh air down into the interior of a sailboat, e.g. its enclosed cabin, through an open hatch to improve the ventilation and atmospheric conditions, e.g. temperature, humidity, etc. therein. In addition to its basic purpose the wind scoop of the present invention provides numerous other advantages. For instance, it is very simple to manufacture, requiring essentially only sewing and/or heat sealing of the fabric materials involved; it is easily installable and readily maintainable in a stationary working position, as well as, being easily collapsible and storable in a small bag or pouch within the confines of the said sailboat. Indeed the pouch could be as small as about 1 foot by 2 feet. The wind scoop of this invention may also be employed without having to detach the hatch cover, as well as without having to drill, screw or nail any holes in the sailboat, since the open hatch cover does not interfere with the use of the three-sided wind scoop. Thus the hatch cover needs only to be opened in its conventional manner and remain so during the use of the three-sided wind scoop. Further the unique three-sided wind scoop of this invention provides more surface area for capturing the wind and thus provides more air for better ventilation of the cabin and this advantage is coupled with the fact that the wind scoop of this invention is capable of capturing the wind for said ventilation regardless of the direction of an anchored sailboat with respect to the wind. Thus regardless of whether the wind changes direction when the sailboat is anchored or the anchored boat itself changes direction with regard to the wind, the three-sided wind scoop of this invention will self-automatically continue to capture the wind and direct its airflow down into the cabin of the anchored sailboat.
Accordingly the three-sided wind scoop of this invention comprises three flexible rectangular-shaped fabric panels, one side of each panel being joined together to form a center seam; the top each said three panels being attached in an equal (about 120 degree) angle Y-shaped configuration to an essentially circular flexible fabric which forms a cap or top cover (hereinafter referred to as “cap”) for said three-sided wind scoop. While the Y-shaped configured panels of the wind scoop are designed to capture the wind and direct the flow of air down into the boat regardless of the direction of the wind in relation to the boat, the cap of the wind scoop is designed to capture the wind flowing upward from said Y-shaped configured panels and redirect it back downward, thereby adding to and facilitating the downward flow of the air.
The cap of the present wind scoop of this invention comprises an essentially circular flexible fabric having three flexible battens permanently encased in the cap by sewing or heat sealing them into the top or bottom surface of the cap, each flexible batten running from the outer edge of the cap to about the center of the cap, and three sleeves or pockets, (hereinafter referred to as “sleeves”) each being provided to hold a rigid batten. In addition the outer edge of the cap may be supported in any conventional manner to help maintain the shape of the cap. There is also an equal (about 120 degree) angle Y-tube connector at about the center of the cap for insertion of one end of each of the rigid battens so as to help hold them in place. The sleeves for these three rigid battens each run from about the outer edge of the cap to said equal angel Y-tube connector and along about the same lines as that of the above mentioned three rectangular shaped panels attached to said cap, while each flexible batten runs along a line that is about half-way between two adjacent rigid batten lines. The cap also has a means, e.g. a strap, hook or loop (hereinafter referred as a “strap”) at the general center of the cap for fixing the wind scoop to a support line so that the wind scoop can be adjusted and maintained in an upright position over the open hatch of the sailboat. While said strap may be made from any suitable material, preferably it is made from the same fabric as that of the cap and it is positioned around about the center of said Y-tube connector by sewing the ends of the strap to the cap.
Finally, a sleeve or pocket (hereinafter referred to as a “sleeve”) is provided along the bottom of each of said Y-shaped configured rectangular panels, each sleeve being designed to hold a rigid batten for insertion at one end into a second equal (about 120 degree) angle Y-tube connector at the general central meeting point at the bottom of said Y-shaped configured rectangular panels. Moreover, this second set of rigid battens at the bottom of said Y-shaped configured rectangular panels is such that an exposed portion of the other end of each batten can abut up against the deck of the boat adjacent to the bottom opening of the hatch and thereby secure the bottom of the wind scoop upright and inside the hatch opening when in use.
Both sets of rigid battens, i.e. those in the cap and those at the bottom of the panels, may be made of any suitable material, e.g., essentially non-flexible plastic or wood, and are preferably oval and ⅜th of an inch in diameter. Most preferably all such rigid battens are wooden dowels. The battens in the cap need only run from insertion in its Y-tube connector to about the outer edge of the cap, while the battens at the bottom of the panels need run only from insertion in its Y-tube connector to about a few inches under the deck of the boat adjacent to the hatch.
Said sleeves for the rigid battens of the cap may be positioned on the top or underside surface of the cap by sewing or heat sealing a part of the panels to themselves or by using a strip of additional fabric in any conventional manner. More preferably the sleeves for the rigid battens are on the underside of the cap and not only run along the lines of the top edge of the rectangular panels attached to the cap, they are a part of said panel attachment itself. Likewise the sleeves for the rigid battens along the bottom edge of the three panels of the three sided wind scoop may be made by heat sealing or sewing a part of the panels to themselves or by sewing an additional strip of fabric to the panels. It is preferred to merely fold a strip of fabric around the bottom edge of each panel and sew each side of the fabric to the panel to form such bottom sleeves. Such sleeves for all the rigid battens employed in the wind scoop are preferably only large enough to snugly fit and maintain the battens therein and long enough to fit over the ends of the equal angle Y-tube connectors employed. It is preferred that any additional fabric employed to prepare the wind scoop used to form the sleeves of the rigid battens be the same as the fabric used for the cap and panels of the wind scoop. The flexible and rigid battens provide strength and stability to the cap during use of the three-sided wind scoop.
The accompanying drawings serve to help visualize the subject invention and are more fully discussed in the following detailed description of the preferred embodiment of the invention.
a is a schematic view of the equal angle Y-tube connectors employed to hold the rigid battens of the three-sided wind scoop.
b is a schematic view of the cap and its equal angle Y-tube connector along with the positioning of the rigid and flexible battens of the cap and the flexible plastic tube surrounding the outer edge of the cap.
Referring to
The cap and three rectangular-shaped panels of the three-sided wind scoop of this invention can be constructed of any suitable flexible fabric or material, such as nylon, sailcloth, and the like. Preferably the flexible fabric is also waterproof and strong enough to be resistant to tearing. It is preferred to employ lightweight nylon, e.g., having about 2 to 8 ounces per square yard and commonly referred to pack cloth, since such is very resistant to tearing even after having been punctured. Further referring to
Being flexible and preferably about 3/16th of an inch in diameter, it has been found that there is no need to remove the flexible battens from the cap when the wind scoop is not being used, since they do not hinder the collapsing, folding and storage of the wind scoop. Thus the flexible battens may be permanently encased in the cap, e.g., by sewing or heat-sealing them therein in any conventional manner so that they fit snugly and are held in position. The need not to insert and remove the flexible battens from the cap every time the wind scoop is put up and taken down is clearly of benefit to the user of the wind scoop. Further the flexible battens need only be sufficiently flexible enough to allow some minor billowing of the cap due to captured wind that rises from the panels during use of the three-sided wind scoop, while at the same time being stiff enough to stiffen the cap so as to help push the wind back downward and to keep the outer part of the cap from folding back on itself and losing the captured wind rising from the panels. The flexible battens which are preferably oval may be hollow or solid and made of any suitable material such as conventional reinforced plastic tubing and the like. More preferably they are reinforced plastic tubes of about 3/16th of an inch in diameter.
As previously noted, the sleeves for the rigid battens of the cap are preferably attached to the underside of the cap. More preferably said sleeves for the rigid battens of the cap are formed by folding a part of the top of each panel into a sleeve and sewing it to itself, which sleeve in turn may be sewn to the underside of the cap so that the sleeve itself is part of the attachment of the panels to the cap. Moreover, sleeves for all the rigid battens of the wind scoop require openings at or about both ends of the sleeves. One opening of a sleeve is provided so that the battens can be inserted therein any time desired prior to the active use of the wind scoop (e.g., before or after the sail of the wind scoop to the user of same) and then removed when it is desired to take the wind scoop down after its use in order to facilitate packing and storing of the wind scoop. The other opening of the sleeve is provided so that the battens can be inserted into their respective equal angle Y-tube connectors. It is also preferred that the sleeves for the rigid battens encase a part of the equal angle Y-tube connector in which the rigid battens are inserted. While the sleeve openings may be held closed by any suitable means when the wind scoop is in use, such is not necessary with regard to the sleeves of the rigid battens at the bottom of the panels. Generally it's preferred to tie all the sleeves to their respective equal angle Y-tube connectors via a Velcro fabric strap and such is also the preferred method for closing the opening at the other end of the sleeves for the rigid battens of the cap.
The circumference of cap 2 need only be sufficiently large enough to overlap the outer edges of the rectangular panels attached to the cap (as shown in
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It will be apparent to those skilled in the art that various modifications could be made to the subject three-sided wind scoop without departing from the scope or spirit of the invention and any such modifications are to be construed as falling with the scope and spirit of this invention.
