Surfboard fin for generating surfboard lift and method of use
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B63B-001/00
B63B-035/79
B63B-001/24
출원번호
US-0025993
(2013-09-13)
등록번호
US-8944872
(2015-02-03)
발명자
/ 주소
Hill, Mark Aaron
Hill, Andrew Steven
출원인 / 주소
Hill, Mark Aaron
대리인 / 주소
Cranfill Summer & Hartzog
인용정보
피인용 횟수 :
2인용 특허 :
1
초록▼
The present invention relates to a lifted fin apparatus comprising one or more lifted fin elements with foiled tin components for a reduction of pressure and drag and an increase in surfboard lift as well as a method of achieving surfboard lift through, the use of said apparatus. Generally, the lift
The present invention relates to a lifted fin apparatus comprising one or more lifted fin elements with foiled tin components for a reduction of pressure and drag and an increase in surfboard lift as well as a method of achieving surfboard lift through, the use of said apparatus. Generally, the lifted fin apparatus comprises two or more lifted fin elements exhibiting a foil design on one or more of the fin surfaces. The individual fin elements may comprise a substantially vertical fin attached to a first edge of a base member and oriented at a substantially 90° angle in relation to the bottom surface of the surfboard or to the first edge of the base member. The fin elements may further comprise an angular fin mounted to a second edge of the base member at one end and the lower portion of the first, fin at the other end. In said embodiment, a bend or elbow is formed between a first fin component of angular fin and base member proximate the point of attachment at second edge of base member. Alternatively, the base member may not have a defined second edge representing the intersection between base member and a first fin component of angular fin, but rather the base member and the angular fin may be manufactured as a unitary structure with a bend or elbow between base member and a first fin component as described below.
대표청구항▼
1. A lifted fin apparatus for attachment to the underside of a surfboard, the lifted fin apparatus comprising at least one lifted fin element wherein said lifted fin element comprises a base member having at least a first edge, a first fin mounted to the first edge of the base member, and a second f
1. A lifted fin apparatus for attachment to the underside of a surfboard, the lifted fin apparatus comprising at least one lifted fin element wherein said lifted fin element comprises a base member having at least a first edge, a first fin mounted to the first edge of the base member, and a second fin comprising a first fin component and a second fin component, and a first elbow between base member and first fin component and a second elbow between first fin component and second fin component, wherein said second fin component is affixed to said first fin. 2. The lifted fin apparatus according to claim 1 wherein said apparatus comprises two lifted fin elements. 3. The lifted fin apparatus according to claim 1 wherein said first fin is substantially perpendicular to the first edge of the base member. 4. The lifted fin apparatus according to claim 1 wherein the angle between said first fin component and said first fin is about 17.99°. 5. The lifted fin apparatus according to claim 1 wherein the angle between said second fin component and said first fin is about 72.10°. 6. The lifted fin apparatus according to claim 1 wherein said second fin and. first fin are attached such that said second fin component is at a 5° descending plane in relation to the horizontal. 7. The lifted fin apparatus of claim 1 wherein said first fin, second fin, and base member form a box frame further comprising a front and rear opening wherein said front opening has a cross sectional area that is greater than said rear opening. 8. The lifted fin apparatus according to claim 1 wherein said first fin, base member, and second fin each comprise a lead edge and a rear edge and wherein the slope from the lead edge to the point of maximum thickness on the fin is substantially uniform and the slope from the rear edge to the point of maximum thickness on the fin is substantially uniform. 9. The lifted fin apparatus according to claim 1 wherein said first, fin, base member, and second fin each comprise a lead edge wherein the length, between, the lead edge of the first fin and second fin and the nearest point of maximum thickness on the fin is about 0.25 inches. 10. A lifted fin apparatus for attachment to the underside of a surfboard, the lifted fin apparatus comprising two lifted fin elements wherein said lifted, fin elements each further comprise a base member having a first edge and a second edge, a substantially vertical first fin affixed to the first edge of the base member with a convex face facing the outer edge of said surfboard, and a substantially angular second fin having a first edge, second edge, a first fin component and a second fin component, wherein first fin component extends from said second edge of base member at a predetermined angle to said first fin and said second fin component extends from said first fin component at predetermined angle to said first fin and wherein said first edge of the second fin is affixed to the second edge of the base member and the second edge of the second fin is affixed to the first fin below the base member. 11. The lifted fin apparatus according to claim 10 said first fin comprising a convex first face and a second face wherein said first face is oriented toward the exterior edge of the surfboard. 12. The lifted fin apparatus according to claim 10 said second fin component of said second fin comprising a convex first face and a second face wherein said first face is oriented toward the base member. 13. The lifted fin apparatus according to claim 10 wherein the predetermined angle between said first fin component and said first fin is about 17.99°. 14. The lifted fin apparatus according to claim 10 wherein the predetermined angle between said second fin component and said first fin is about 72.10°. 15. The lilted fin apparatus according to claim 10 wherein said second fin and first fin are attached such that said second fin component is at a 5° descending plane in relation to the surface of the water. 16. The lifted fin apparatus according to claim 10 wherein said first fin, base member, and second fm each comprise a lead edge and a rear edge and wherein the slope from the lead edge to the point of maximum thickness on the fin is substantially uniform and the slope from the rear edge to the point of maximum thickness on the fin is substantially uniform. 17. The lifted fin apparatus according to claim 10 wherein said first fin, base member, and second fin each comprise a lead edge wherein, the length between the lead edge of the first, fm and second fin and the nearest point of maximum thickness on the fin is about 0.25 inches. 18. The lifted fin apparatus of claim 10 wherein said first fin, second fin, and base member form a box frame further comprising a front and rear opening wherein said first opening has a cross sectional area that is greater than said second opening. 19. A method of achieving surfboard lift comprising the steps of attaching at least one lifted fin element to the underside of a surfboard said lifted fin element comprising a base member having at least a first edge, mounting a first fin to the first edge of the base member, and mounting a second fin comprising a first fin component and a second fin component, and a first elbow between base member and first fin component and a second elbow between first fin component and second fin component, and adjusting a plug system of the lifted fin element to the desired performance of the user.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (1)
Burns, Steve Daniel; Salisbury, James Edward, Hydrodynamic device.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.