Flipper Patents (Class 441/64)
  • Patent number: 10843043
    Abstract: A method for providing a swim fin includes providing a foot attachment member and a blade member having a predetermined blade length. The blade member has a soft portion made with a relatively soft thermoplastic material. The method includes providing a relatively harder portion and the relatively soft thermoplastic portion that is molded to the relatively harder thermoplastic portion. The method includes providing an orthogonally spaced portion of the relatively harder portion that is arranged a predetermined orthogonal direction while said swim fin is in state of rest. The method includes providing the blade member with a predetermined biasing force portion that is arranged to urge the orthogonally spaced portion while the swim fin is in a state of rest. The method includes arranging a significant portion of the blade length to experience pivotal motion a lengthwise angle of attack during use.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: November 24, 2020
    Assignee: Nature's Wing Fin Design, LLC
    Inventor: Peter T. McCarthy
  • Patent number: 10744374
    Abstract: A swim fin includes a foot pocket with a front and rear sections and an upper portion. The upper portion has a dorsal region, and first and second debossed regions with the dorsal region disposed between the debossed regions. The first and second debossed regions are laterally positionable adjacent the metatarsophalangeal joints of the foot of the user. The debossed region includes grooves formed therein. The foot pocket includes a foot pocket cavity. The swim fin further includes a fin blade extending from the front section of the foot pocket. The fin blade has a distal edge, a blade body disposed between the distal edge and the front section, and first and second triple-bladed rails. The triple-bladed rails are disposed longitudinally along the foot pocket and the blade body with the foot pocket and the blade body disposed between the first and second triple-bladed rails.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: August 18, 2020
    Assignee: TYR SPORT, INC.
    Inventors: Matthew Vito DiLorenzo, Wei-Chieh Tu
  • Patent number: 10688347
    Abstract: A swimming flipper (1) comprising a foot portion (2) and substantially flat blade portion (3) extending there from, said blade portion (3) having provided on each longitudinal side thereof at least two opposed rails (4/5) extending inwardly and at an angle equal to or less than 90 degrees to the plane of said blade portion (3), and said blade portion (3) having provided at least two ridges (7/8) preferably underneath the blade portion (3) extending longitudinally from the foot portion (2), said foot portion (2) having provided a one-piece strap (6), and said foot portion (2) having provided at least two fixed couplings (11/12) to engage and disengage with the corresponding and opposing couplings of another said flipper portion (1) to interlock and hold two flippers attached to each other.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: June 23, 2020
    Assignee: DMC Industries PTY LTD
    Inventor: Donald Bruce McCredie
  • Patent number: 10675508
    Abstract: A method of coupling a boot toe body to a fin apparatus is disclosed. The fin apparatus includes a fin body coupled to a boot coupling body. The method involves connecting a first boot connector on a first end of the boot coupling body to a first complementary boot connector on a top side of the boot toe body, and connecting a second boot connector on a second end of the boot coupling body to a second complementary boot connector on a bottom side of the boot toe body. Boot toe bodies, fin apparatuses, and systems including the boot toe bodies and fin apparatuses are also disclosed.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: June 9, 2020
    Assignee: Cetatek Holdings Inc.
    Inventor: Jan Peter Ortwig
  • Patent number: 10661121
    Abstract: The invention relates to the new structure of the fin or the fin's blade (2). The blade (2) is made of segments (S) and transitions (T), wherein a segment with a positive incline and a segment with a negative incline alternate along the blade (2). For example, two neighbouring segments (S) with a transition (T) can form the shape of a wave, a triangle, a trapezium or a tooth. Individual segments (S) can be flat, mainly flat or curved. The lengths of two neighbouring segments (S) with a transition (T) define total length (L). Heights (H) of segments (S), total length (L) and transition (T) length can be equal, they can increase or decrease linearly, progressively or regressively. Random combinations of changing shapes, heights (H), segments (S), total lengths (L) and transitions (T) along the blade (2) are possible. Segments can follow each other across the entire width of the blade's (2) surface or optionally in one part of the fin.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: May 26, 2020
    Inventor: Maks Robinik
  • Patent number: 10570947
    Abstract: A flipper screw includes a lower cover with a screw and a lower cover with nut, and it is used for fixing the web by replacing the anti-slip screw. The upper cover and the lower cover are provided with plural snap portion, which can be snapped in the rib around the screw hole, so as to avoid the web accidentally being released from the flipper.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: February 25, 2020
    Inventor: Ching-Wen Wang
  • Patent number: 10478672
    Abstract: A water shoe which is comprised of a neoprene, polychloroprene, nylon, polyester or rubber material like upper boot or sock attached to a traction sole and having an elevated swim fin appendage which does not obstruct normal walking motion. The neoprene water shoe with an elevated swim fin appendage allows a user to walk with a normal stride on land and also to enter the water and engage in swimming activities without having to change into separate swim fins.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: November 19, 2019
    Inventor: David Martin Reyes
  • Patent number: 10350457
    Abstract: A flowing fin assembly for swimmers is provided. The flow assembly is adapted to provide excellent comfort, good propulsion properties and also has a gentle flowing appearance that is similar to the flow properties of a Betta fish as swimmer traverses through the water.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: July 16, 2019
    Inventor: Eric Jonathon Ducharme
  • Patent number: 10238919
    Abstract: This invention is chemiluminescent swim fin system which allows one to swim at night or be worn at parties. It can be seen from behind has a large surface area for fin visibility. Its chemical composition allows it to be rapidly be recharged by lights, and exhibit bright visible light from a distance, but also allows for structural integrity of the material when used by swimmers.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: March 26, 2019
    Inventors: Clare Donovan, Flo Donovan
  • Patent number: 10226668
    Abstract: A swim fin and a method proving thrust propulsion during a swimmer's kicking cycle may include a foot pocket and a fin blade extending from the foot pocket. Fin rails may extend along the lateral edges of the fin blade. The fin rails may include an integral fin spine or separately assembled fin spine configured to provide a swim fin with predetermined hydrodynamic characteristics.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: March 12, 2019
    Inventor: Joseph D Maresh
  • Patent number: 10112079
    Abstract: A first flipper has a base, a deformable fin connected to the base, and a first spreader that imposes a first force on the fin that causes the fin to spread in response to relative movement between the first spreader and the fin caused by a first longitudinal deflection of the fin relative to the base. A second flipper has a fin and a foot coupling portion connectable to a foot holding portion of a boot to couple a foot in the foot holding portion to the flipper. A first system includes the flipper and the boot. Methods of using the flippers, the boot, and the system are also disclosed.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: October 30, 2018
    Assignee: Cetatek Holdings Inc.
    Inventor: Jan Peter Ortwig
  • Patent number: 10086235
    Abstract: A swim or scuba diving fin includes an open-back shoe portion having a pocket for receiving the foot of the user and no heel portion, a blade portion forming a forward extension of the shoe portion, and an element holding the foot in the open-back shoe portion, includes an elongate element in the form of a strap, belt or the like and a length sufficient to surround the heel portion, the sidewalls of the pocket of the shoe, and at least part of the tip of the shoe. Such elongate element is at least partially separated from the open-back shoe portion, and is or may be connected to the open-back shoe portion (3) in length-adjustable and/or at least partially removable fashion through first coupling members, which engage corresponding second coupling members located at the front tip of the open-back shoe.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: October 2, 2018
    Inventors: Aristide Barone, Marco Barbagelata
  • Patent number: 10060409
    Abstract: A Pulsed Locomotor (120), for propelling media, fluids and crafts, in fluids and on land, comprising a blade (124) securely connected to a drive shaft (122). Upon reciprocation, the ambient medium is forced towards the trailing edge of the blade (124) thereby causing a reactive locomotion of the apparatus, substantially along the plane of the blade. Apparatus is secured to motor M by fastening through aperture (130). The apparatus can be operated directly by motor M, and indirectly by the reaction momentum imparted to a supporting platform P. Thrust is directed by steering handle (128) about a bearing (126), rotatably coupling to platform P and base C. Lubricant L is supplied to outlets (134) via conduit (136) and inlet (132), to coat the apparatus with a lubricant cavity, for drag reduction. The blade (124) planes along a figure 8 reciprocation path s1e1s2e2s1. Crafts are embodied.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: August 28, 2018
    Inventor: Edouard Kassianoff
  • Patent number: 10029148
    Abstract: A heel protective adjustable shoelace, applied to an adjustable strap-type swimming fin, includes a heel pad, a heel protecting portion and two connecting adjusting straps. The heel protecting portion integrally extends along the longitudinal direction of the heel pad, and together with the heel pad define an accommodating space for accommodating and enveloping a heel and a wearing opening in communication with the accommodating space. The two connecting adjusting straps integrally extend from two opposite sides of the heel protecting portion corresponding to the wearing opening, respectively, to connect to a webbed member. A connection between the heel protective adjustable shoelace and the webbed member may be adjusted through the two connecting adjusting straps to match a foot length of a wearer. Further, a heel of a wearer is prevented from being cut by an external object such as corals and reefs during a scuba diving activity.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: July 24, 2018
    Inventor: Shin-Shi Shieh
  • Patent number: 9870726
    Abstract: A head-mounted display, a smart phone, a tablet terminal, an electronic book, or the like monitors conditions of the side of a power generation apparatus that charges a battery. An image display apparatus includes a power generation information acquisition means for obtaining power generation information on a power storage amount, a power generation amount, and the like of a secondary battery in each power generation apparatus, appropriately processes the obtained information, and displays it to a user via a display unit. The user can check the power generation amount of the power generation apparatus and the power storage amount of the secondary battery without stopping the use of the image display apparatus. When a power storage amount of a battery in use is lowered, the user can properly judge with which of the power generation apparatuses the user should replace the battery.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: January 16, 2018
    Assignee: SONY CORPORATION
    Inventors: Masakazu Yajima, Yoichiro Sako, Takayuki Hirabayashi, Kouichirou Ono, Masashi Takeda, Akira Ono
  • Patent number: 9861858
    Abstract: A monofin, mermaid tail, and method of applying the tail and monofin to increase swimming efficiency and/or aesthetics.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: January 9, 2018
    Assignee: Blue Springs Partners, LLC
    Inventors: Eric Browning, Steven Browning, Brent Houghton, Kyle Kinghorn, Christine Dustin
  • Patent number: 9764192
    Abstract: A swim fin and a method proving thrust propulsion during a swimmer's kicking cycle may include a foot pocket and a fin blade extending from the foot pocket. Fin rails may extend along the lateral edges of the fin blade. The fin rails may include an integral fin spine or separately assembled fin spine configured to provide a swim fin with predetermined hydrodynamic characteristics.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: September 19, 2017
    Inventor: Joseph D Maresh
  • Patent number: 9737762
    Abstract: A first flipper has a base, a deformable fin connected to the base, and a first spreader that imposes a first force on the fin that causes the fin to spread in response to relative movement between the first spreader and the fin caused by a first longitudinal deflection of the fin relative to the base. A second flipper has a fin and a foot coupling portion connectable to a foot holding portion of a boot to couple a foot in the foot holding portion to the flipper. A first system includes the flipper and the boot. Methods of using the flippers, the boot, and the system are also disclosed.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: August 22, 2017
    Assignee: CETATEK HOLDINGS INC.
    Inventor: Jan Peter Ortwig
  • Patent number: 9724567
    Abstract: Swim footwear having integral flippers and sound generators includes a first shoe comprising a sole that is pliable. A compartment is positioned in an interior space defined by the sole. An orifice, positioned in the sole, is fluidically connected to the compartment. A noisemaker is coupled to the sole within the orifice, such that air passing from the compartment through the noisemaker generates a sound. A shell that is coupled to the sole has an entry proximate to a back end of the sole. The shell and the sole define a cavity that is complimentary to the foot of the user. The entry is configured for insertion of the user's foot. A flipper extends from a front end of the sole. The flipper is in substantial parallelism with the sole. The footwear comprises a second shoe that mirrors the first shoe.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: August 8, 2017
    Inventor: Ronald Wymer
  • Patent number: 9661895
    Abstract: A shoe includes one or more nozzles mounted to the shoe, each of the one or more nozzles including one or more inlets to take in fluid traveling in an intake direction during a kicking motion of a wearer, a bend to change a flow direction of the fluid from the intake direction to an output direction, and one or more outlets to expel fluid in the output direction.
    Type: Grant
    Filed: October 31, 2015
    Date of Patent: May 30, 2017
    Inventor: Paul E. Hohmann
  • Patent number: 9643055
    Abstract: A swim fin includes a foot pocket with a front and rear sections, an upper portion formed of an elastomeric material, a sole, and a foot pocket cavity. The rear section has a rear edge defining the foot pocket cavity. The foot pocket further has an array of through holes disposed through the upper portion adjacent the rear section. The array of through holes is sized and configured to generally increase a surface area of the rear section from the rear edge towards the front section. The swim fin includes a fin blade extending from the front section of the foot pocket. The swim flu may further include an adjustable heel strap. The fin blade may further include side rails attached to the foot pocket with hinges. The fin blade may further include a flex member disposed between first and second body members.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: May 9, 2017
    Assignee: TYR Sport, Inc.
    Inventors: Eric Carlin Peloquin, Philip Moses Bayer, Philip S. Kovanis
  • Patent number: 9604103
    Abstract: A monofin, mermaid tail, and method of applying the tail and monofin. The fin utilizes a core made of flexible yet resilient material such as plastic and a cover that is elastic, such as neoprene. The user's feet are connected to the fin by releasable connections including a securing cord and cord lock. The mermaid tail and monofin connects both of a user's feet and legs in order to facilitate swimming in a mermaid-like motion while giving the user the appearance of a mermaid.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: March 28, 2017
    Assignee: Blue Spring Partners, LLC
    Inventors: Eric Browning, Steven Browning, Brent Houghton, Kyle Kinghorn, Christine Dustin
  • Patent number: 9572378
    Abstract: A wetsuit (101) is provided which comprises (a) a first central region (125, 127) comprising a first material and having a first thickness; and (b) a second lateral region comprising a second material and having a second thickness. The buoyancy per unit area of the first region is greater than the buoyancy per unit area of the second region.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: February 21, 2017
    Assignee: ROKA SPORTS, INC.
    Inventors: Robert Allen Canales, Kurt Robert Spenser
  • Patent number: 9375610
    Abstract: A swim fin includes a blade, a retaining arrangement on the blade for removably securing a person's foot to the blade, and at least one propulsion increasing shell mounted on an upper surface of the blade, each shell having a hollowed out portion to increase a surface area of propulsion of the swim fin.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: June 28, 2016
    Inventor: Henry H. Bilge
  • Patent number: 9364717
    Abstract: The present invention relates to swimming fins used for strength training in fitness swimming and performance swimming. A swimming fin comprises a fin body having top and bottom surfaces, and proximal and distal ends, the fin body defining an opening at the proximal side and configured to receive a foot. A portion of the distal edge is scalloped.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: June 14, 2016
    Inventors: Kathleen Davis, Don Reardon, Damon Clegg
  • Patent number: 9211441
    Abstract: An inflatable swim fin apparatus includes a foot portion having a lower wall with a peripheral edge and having an upper wall extending upwardly from the peripheral edge of the lower wall, the lower wall and the upper wall defining a foot pocket and a rear opening allowing a user's foot to be received into the foot pocket. The swim fin apparatus includes a fin blade portion coupled to the upper wall of the foot portion, the fin blade portion including a bladder defining an interior space configured to hold a volume of air.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: December 15, 2015
    Inventor: Charles H. Lawrence
  • Patent number: 9204684
    Abstract: A nozzle shoe includes water nozzles attached to the shoe. As water enters an inlet of each nozzle, it is directed through the use of turning vanes to an outlet of the nozzle. The internal turning vanes will aid in keeping the water in a substantially laminar condition for a more efficient performance while within the nozzle. The area of the outlet of the nozzle is smaller than the area of the inlet of the nozzle. This will provide a proportionally higher force out the outlet which will assist in propelling the wearer through the water at a higher velocity.
    Type: Grant
    Filed: December 15, 2013
    Date of Patent: December 8, 2015
    Inventor: Paul E. Hohmann
  • Patent number: 9186554
    Abstract: A modified swim fin comprising a swim fin component and a leg amputation coupling. The swim fin component and the amputation coupling may be two separate structures joined together such as by welding, glue, mechanical attachment or integral fabrication. The coupling may be formed of two elements, a prosthetic soft, shell and an encasing non-metallic material such as a plastic or rubber. The prosthetic soft shell forms the interior of the coupling for direct contact with the amputated leg. The fin component and the coupling are fixedly joined together so that they do not pivot at their interface. Their centerlines are substantially aligned to minimize pain and/or injury for the wearer and to maximize performance.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: November 17, 2015
    Inventors: Randall Wade Lord, Lori Elizabeth Lord
  • Patent number: 9144712
    Abstract: A composite dive fin assembly for a user swimming in a body of water having primary, secondary, and lateral portions which each define corresponding oppositely disposed propulsion surfaces. The primary, secondary, and lateral portions also each having a corresponding propulsion edge. The primary, secondary, and lateral propulsion surfaces cooperatively oriented to displace an amount of water over a corresponding one of the primary, secondary, and lateral propulsion edges when the composite dive fin assembly is moved in the body of water in which the user is swimming. The primary, secondary, and lateral propulsion surfaces are cooperatively configured to displace a greater amount of water over corresponding propulsion edges relative to previously known dive fins while reducing the resistive forces while displacing water, allowing a user to swim further and/or faster with the less effort.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: September 29, 2015
    Assignee: Finquest, Inc.
    Inventor: Richard D. Gage
  • Patent number: 9039470
    Abstract: A shoe with integrated fin apparatus including a pair of fin members disposed on either side of a shoe proximal the outsole of said shoe, each of said fin members including a maximum width disposed proximal the toe box of the shoe and a minimum width disposed proximal the heel of said shoe, wherein each of said pair of fin members is moveable between a furled position, securable to a shoe fastener medially disposed atop the toe box, and an unfurled position, disposed splayed laterally along each side of the shoe, whereby said shoe with integrated fin apparatus is wearable for unimpeded locomotion upon dry land and is also usable to effect increased water displacement when swimming.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: May 26, 2015
    Inventor: David Berge
  • Patent number: 9004966
    Abstract: The present invention is generally directed to a swim fin generally including a fin blade and a bootie, the bootie including a foot pocket configured to receive a user's foot and ankle, the foot pocket attached to the top surface of the fin blade; and a strap system including one or more straps pulling the user's foot and ankle into the foot pocket toward the distal edge of the fin blade and down against a top surface of the fin blade. Some aspects of the present invention may also include a foot pocket formed from a first portion having a first elastic characteristic connected to the top surface of the fin blade; and a second portion having a second elastic characteristic portion disposed at least on a portion of the top surface of the foot pocket, the second elastic characteristic being greater than the first elastic characteristic.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: April 14, 2015
    Inventor: Brian Mayer
  • Patent number: 8986061
    Abstract: An aquatic accessory adapted for frictional attachment with a shoe being worn by a user comprises a receptacle portion and a fin portion extending outwardly from the receptacle portion. The receptacle portion is adapted to receive at least a portion of an inserted shoe, and frictionally attach with the shoe. Gripping members can be configured and angled in a manner for providing increased frictional attachment between the aquatic accessory and inserted shoe. The accessory can be fabricated from a stretchable material to provide a radial attachment force for enhancing frictional attachment between the aquatic accessory and an inserted shoe.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: March 24, 2015
    Assignee: Finnys LLC
    Inventor: Michael Fraser
  • Publication number: 20150044920
    Abstract: The shark wear of the present invention provides protection against aquatic predators comprising a lanyard, gloves and flippers equipped with a defensive device comprising an arrowhead having four sides, and wherein each side has a flange, and the four flanges terminate in a single point.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 12, 2015
    Inventor: Deano Miano
  • Patent number: 8936499
    Abstract: A flipper including a bootee extended to the front by a flexible wing section, at least one flexible element placed in the direction of the length under the flexible wing section and a securing portion arranged between the proximal part of the flexible element and the proximal part of the flexible wing section.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: January 20, 2015
    Assignee: Decathlon
    Inventor: Guillaume Gouvernet
  • Patent number: 8926385
    Abstract: Apparatus, devices and methods of multiple high aspect ratio hydrodynamic horizontal ladder oriented vanes with pliable hinges and rotation limiting flexible webs attached between semi-flexible support beams on swim fins. Pivotal rotation of the hydrofoil vanes can be restricted by flexible membranes, between the hydrofoil vanes and the support beams, to provide an optimum angle of attack for the hydrofoil vanes during a swimming stroke. The fins can have at least one pivoting vane region connected to the support beams with a flexible hinge member. The support beams can be fixedly or rotationally attached at one end to a foot pocket. Methods are provided for limiting the rotation of at least one of the pivoting vanes using flexible web members between vanes and the support beams. Methods for increasing lift and decreasing turbulence and drag on hydrofoils or vanes of the swim fins are also included.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: January 6, 2015
    Inventors: David Woods, Ron Evan Smith
  • Patent number: 8858284
    Abstract: An aquatic exercise device comprising a base arranged to be held in particular with a foot or with a hand, and webbing, in particular corolla-shaped webbing, that is secured to the base and that is suitable for deforming under pressure from the water that is exerted while the device is moving.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: October 14, 2014
    Assignee: Decathlon
    Inventors: Stephan Sahun, Patrick Doby, Damien Saumureau, Francois Barbier, Benoit Lefrancois
  • Publication number: 20140256198
    Abstract: A composite dive fin assembly for a user swimming in a body of water having primary, secondary, and lateral portions which each define corresponding oppositely disposed propulsion surfaces. The primary, secondary, and lateral portions also each having a corresponding propulsion edge. The primary, secondary, and lateral propulsion surfaces cooperatively oriented to displace an amount of water over a corresponding one of the primary, secondary, and lateral propulsion edges when the composite dive fin assembly is moved in the body of water in which the user is swimming. The primary, secondary, and lateral propulsion surfaces are cooperatively configured to displace a greater amount of water over corresponding propulsion edges relative to previously known dive fins while reducing the resistive forces while displacing water, allowing a user to swim further and/or faster with the less effort.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 11, 2014
    Inventor: Richard D. Gage
  • Publication number: 20140206247
    Abstract: A first flipper has a base, a deformable fin connected to the base, and a first spreader that imposes a first force on the fin that causes the fin to spread in response to relative movement between the first spreader and the fin caused by a first longitudinal deflection of the fin relative to the base. A second flipper has a fin and a foot coupling portion connectable to a foot holding portion of a boot to couple a foot in the foot holding portion to the flipper. A first system includes the flipper and the boot. Methods of using the flippers, the boot, and the system are also disclosed.
    Type: Application
    Filed: February 3, 2014
    Publication date: July 24, 2014
    Applicant: CETATEK HOLDINGS INC.
    Inventor: Jan Peter Ortwig
  • Publication number: 20140199902
    Abstract: A swim device comprising elongated foot pockets which surround each of the feet of the swimmer, continued distally with tapers ending in neckings connected in a functional manner to blades for each foot. The neckings of the tapers of both feet may be connected to one blade (monofin). A swim device comprising a cowling of generally elongated shape which surrounds both feet of the swimmer, continued distally with a taper, ending in a necking to which one blade (monofin) is connected in a functional manner. The tapers and the hydrodynamic cross-sections of the foot pockets and of the cowling, result in stronger thrust and lower drag than in the designs of prior art.
    Type: Application
    Filed: January 14, 2013
    Publication date: July 17, 2014
    Inventor: George Dan Suciu
  • Patent number: 8667651
    Abstract: A combined diving utensil has a buckling assembly, a seesaw and a fastening element. The buckling assembly includes a male buckle and a female buckle. Of which, one end of the female buckle is provided with an opening, and the other end provided with a mating joint. One end of the male buckle is provided with a threading portion, and the other end provided with an extension coupled with the mating joint. A plurality of ribs are set on one surface of the fastening element, which is set on the threading portion of the male buckle. A stopper is set close to the end of the fastening element. The seesaw is provided with a thrust rib plate, which is mated with a plurality of ribs on the fastening element and pivoted on the female buckle via the fulcrum.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: March 11, 2014
    Inventor: Ching-Wen Wang
  • Patent number: 8652013
    Abstract: An aquatic exercise device (100) includes a cuff strap (102) for fastening a plurality of fins (106) to a user's leg. The cuff strap (102) is configured to position the plurality of fins (102) to extend outwardly form an interior of the cuff strap (102) when the cuff strap (102) is fastened to an ankle area of the user's leg. The plurality of fins (106) provide resistance in a direction opposite to the direction of motion of the user's foot when the aquatic exercise device (100) is moved through water.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: February 18, 2014
    Assignee: Aqualogix, Inc.
    Inventors: Tadlington A. Stout, James P. Cleary
  • Patent number: 8641464
    Abstract: A first flipper has a base, a deformable fin connected to the base, and a first spreader that imposes a first force on the fin that causes the fin to spread in response to relative movement between the first spreader and the fin caused by a first longitudinal deflection of the fin relative to the base. A second flipper has a fin and a foot coupling portion connectable to a foot holding portion of a boot to couple a foot in the foot holding portion to the flipper. A first system includes the flipper and the boot. Methods of using the flippers, the boot, and the system are also disclosed.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: February 4, 2014
    Assignee: Cetatek Holdings Inc.
    Inventor: Jan Peter Ortwig
  • Patent number: 8632372
    Abstract: A swimming device for a swimmer or diver is described, which has a monofin, a power transfer element for moving the monofin using muscle power, and a fastening device for fastening the power transfer element to the lower legs of the swimmer. The power transfer element has a lower leg section, a foot section, and a fin section. In order to achieve the highest possible propulsion in the water with the lowest possible use of force, the power transfer element flows dynamically, in cross section in the X-Z level with a longer Z axis and short X-axis.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: January 21, 2014
    Inventor: Norbert Fleck
  • Patent number: 8628365
    Abstract: A swim fin having, in combination, a blade including an inner thin board, and upper and lower Neoprene sheet or sheets covering upper and lower sides of the board, the upper Neoprene sheet defining a foot entrance, a forward foot retention strap or straps carried by the blade to extend proximate said entrance and over the foot, a rearward ankle/heel retainer carried by the blade to extend above the rearwardmost portion of the blade, the forward retention strap and said rearward retainer both being flexible, and primary seam binding extending at the periphery of said board, connecting the Neoprene sheet or sheets to the board and also anchoring the forward strap and the rearward retainer to the board.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: January 14, 2014
    Inventors: Marlene Burdick, Vesta Mashburn
  • Publication number: 20130316604
    Abstract: A swim fin having, in combination, a blade including an inner thin board, and upper and lower Neoprene sheet or sheets covering upper and lower sides of the board, the upper Neoprene sheet defining a foot entrance, a forward foot retention strap or straps carried by the blade to extend proximate said entrance and over the foot, a rearward ankle/heel retainer carried by the blade to extend above the rearwardmost portion of the blade, the forward retention strap and said rearward retainer both being flexible, and primary seam binding extending at the periphery of said board, connecting the Neoprene sheet or sheets to the board and also anchoring the forward strap and the rearward retainer to the board.
    Type: Application
    Filed: May 24, 2012
    Publication date: November 28, 2013
    Inventors: Marlene Burdick, Vesta Mashburn
  • Publication number: 20130183877
    Abstract: An aquatic accessory adapted for frictional attachment with a shoe being worn by a user comprises a receptacle portion and a fin portion extending outwardly from the receptacle portion. The receptacle portion is adapted to receive at least a portion of an inserted shoe, and frictionally attach with the shoe. Gripping members can be configured and angled in a manner for providing increased frictional attachment between the aquatic accessory and inserted shoe. The accessory can be fabricated from a stretchable material to provide a radial attachment force for enhancing frictional attachment between the aquatic accessory and an inserted shoe.
    Type: Application
    Filed: January 18, 2013
    Publication date: July 18, 2013
    Inventor: Michael FRASER
  • Patent number: 8485556
    Abstract: A snowboard or other glide board has a receptacle and plug accessory system for quickly incorporating additional and interchangeable functionality to the board. A user can readily switch functionality in and out of the board by way of the plug and receptacle system. Various plugs contain different features. The receptacle can be incorporated during manufacturing, such as in a manner compatible with existing manufacturing practices, as a retrofit to existing boards. The receptacle is a plate embedded into the board, in line with the core and sandwiched between the strength layers that are typically comprised of fiberglass. The receptacle sidewall has a one side of a latch mechanism in its interior walls. In one implementation, the plug accessory can latch fit into the receptacle. The plug can be disengaged with one hand without tools. The plug accessory can incorporate a camera, a light, a flag, and a rooster tail duct.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: July 16, 2013
    Inventor: Paul Shaheen
  • Patent number: 8480446
    Abstract: Apparatus, devices and methods of operating multiple high aspect ratio hydrodynamic horizontal ladder oriented vanes with pliable hinges and rotation limiting flexible webs attached between flexible support beams on swim fins. The fins can have a foot pocket. A pair of parallel support beams can be secured to the foot pocket and support a plurality of hydrofoil vanes in a resisted pivotal arrangement. Pivotal rotation of the vanes can be restricted by flexible membranes, between vanes and beams, to provide an optimum angle of attack for the during swimming. The fins can have at least one pivoting vane region connected to the fin with a flexible hinge member.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: July 9, 2013
    Inventor: David W Woods
  • Publication number: 20130090028
    Abstract: The present invention is generally directed to a swim fin generally including a fin blade and a bootie, the bootie including a foot pocket configured to receive a user's foot and ankle, the foot pocket attached to the top surface of the fin blade; and a strap system including one or more straps pulling the user's foot and ankle into the foot pocket toward the distal edge of the fin blade and down against a top surface of the fin blade. Some aspects of the present invention may also include a foot pocket formed from a first portion having a first elastic characteristic connected to the top surface of the fin blade; and a second portion having a second elastic characteristic portion disposed at least on a portion of the top surface of the foot pocket, the second elastic characteristic being greater than the first elastic characteristic.
    Type: Application
    Filed: October 1, 2012
    Publication date: April 11, 2013
    Inventor: BRIAN MAYER
  • Publication number: 20130059492
    Abstract: A first flipper has a base, a deformable fin connected to the base, and a first spreader that imposes a first force on the fin that causes the fin to spread in response to relative movement between the first spreader and the fin caused by a first longitudinal deflection of the fin relative to the base. A second flipper has a fin and a foot coupling portion connectable to a foot holding portion of a boot to couple a foot in the foot holding portion to the flipper. A first system includes the flipper and the boot. Methods of using the flippers, the boot, and the system are also disclosed.
    Type: Application
    Filed: April 7, 2011
    Publication date: March 7, 2013
    Applicant: CETATEK HOLDINGS INC.
    Inventor: Jan Peter Ortwig