Patent US5167551A successfully refreshed from Google Patents.
US5167551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bodysurfing and swimming aid
Assignee: Individual
•
Filing: 1991-09-20
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Granted: 1992-12-01
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Expires: 2011-09-20
Abstract
Abstract In the sport of bodysurfing, hand fins are worn and reliably held on the surfer's hands. Each hand fin has longer outer and shorter inner rails for better stability and guidance, a keel for straight tracking through a wave, and curved channels for creating more lift and increased speed through the wave. A peripheral lip provides lift even during steering maneuvers.
Inventors
- 👤 Robert G. Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:55
CPC Classifications
A; A63; A63B; A63B31/00; A63B31/02; A63B31/04
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
227 words
A hand fin for use in water by bodysurfers, swimmers and users participating in watersports, comprising: a generally rigid, buoyant member extending rearwardly from a prow along a longitudinal direction to a stern, and having wall means bounding an internal compartment in which a hand of a user is closely confined during use, said wall means including molded portions encircling the fingers of the confined hand and a humped support portion on which the confined hand is buoyantly supported during use, and a pair of rail portions spaced apart of each other along a transverse direction generally perpendicular to the longitudinal direction, said rail portions extending along the longitudinal direction past a wrist of the confined hand and bounding a wrist cutout at the stern to permit free wrist flexing of the confined hand relative to the buoyant member between the rail portions during use, said internal compartment having an access opening which constitutes the sole source of access to the internal compartment; and attachable holder means on the buoyant member, for securely holding the buoyant member on the confined hand, and including a tubular holder extending rearwardly from the access opening and, when attached, circumferentially enclosing the wrist of the confined hand and sealing the internal compartment from water ingress during use, said rail portions extending rearwardly past the tubular holder at opposite lateral sides thereof.
Claim 2
Dependent Claim
227 words
A hand fin for use in water by bodysurfers, swimmers and users participating in watersports, comprising: a generally rigid, buoyant member extending rearwardly from a prow along a longitudinal direction to a stern, and having wall means bounding an internal compartment in which a hand of a user is closely confined during use, said wall means including molded portions encircling the fingers of the confined hand and a humped support portion on which the confined hand is buoyantly supported during use, and a pair of rail portions spaced apart of each other along a transverse direction generally perpendicular to the longitudinal direction, said rail portions extending along the longitudinal direction past a wrist of the confined hand and bounding a wrist cutout at the stern to permit free wrist flexing of the confined hand relative to the buoyant member between the rail portions during use, said internal compartment having an access opening which constitutes the sole source of access to the internal compartment; and attachable holder means on the buoyant member, for securely holding the buoyant member on the confined hand, and including a tubular holder extending rearwardly from the access opening and, when attached, circumferentially enclosing the wrist of the confined hand and sealing the internal compartment from water ingress during use, said rail portions extending rearwardly past the tubular holder at opposite lateral sides thereof.
Claim 3
Dependent Claim
27 words
The hand fin according to claim 1; and further comprising another hand fin attachable on the other hand of the user, said hand fins being mirror symmetrical.
Claim 4
Dependent Claim
40 words
The hand fin according to claim 1, wherein the buoyant member has a base wall constituted of a rigid, synthetic plastic material; and wherein the wall means includes a molded mass of synthetic plastic material secured to the base wall.
Claim 5
Dependent Claim
26 words
The hand fin according to claim 1, wherein the buoyant member has a streamlined shape to resist water drag and is constituted of a lightweight material.
Claim 6
Dependent Claim
28 words
The hand fin according to claim 1, wherein one of the rail portions is longer, as considered along the longitudinal direction, than the other of the rail portions.
Claim 7
Dependent Claim
222 words
A bodysurfing arrangement for use in water by bodysurfers, comprising: a pair of hand fins, one worn on each hand of a bodysurfer, each hand fin including a generally rigid, buoyant member extending rearwardly from a prow along a longitudinal direction to a stern, and having wall means bounding an internal compartment in which a respective hand is closely confined during bodysurfing, each wall means including molded portions encircling the fingers of the respective confined hand and a humped support portion on which the respectively confined hand is buoyantly supported to raise at least the head and upper torso of the bodysurfer out of the water during bodysurfing, each wall means having rail portions bounding a wrist cutout at the stern to permit free wrist flexing of the respectively confined hand relative to the buoyant member during bodysurfing, said internal compartment having an access opening which constitutes the sole source of access to the internal compartment; and attachable holder means on the buoyant member, for securely holding the buoyant member on the respectively confined hand, and including a tubular holder extending rearwardly from the access opening and, when attached, circumferentially enclosing the wrist of the respectively confined hand and sealing the internal compartment from water ingress during bodysurfing, said rail portions extending rearwardly past the tubular holder at opposite lateral sides thereof.
Claim 8
Dependent Claim
222 words
A bodysurfing arrangement for use in water by bodysurfers, comprising: a pair of hand fins, one worn on each hand of a bodysurfer, each hand fin including a generally rigid, buoyant member extending rearwardly from a prow along a longitudinal direction to a stern, and having wall means bounding an internal compartment in which a respective hand is closely confined during bodysurfing, each wall means including molded portions encircling the fingers of the respective confined hand and a humped support portion on which the respectively confined hand is buoyantly supported to raise at least the head and upper torso of the bodysurfer out of the water during bodysurfing, each wall means having rail portions bounding a wrist cutout at the stern to permit free wrist flexing of the respectively confined hand relative to the buoyant member during bodysurfing, said internal compartment having an access opening which constitutes the sole source of access to the internal compartment; and attachable holder means on the buoyant member, for securely holding the buoyant member on the respectively confined hand, and including a tubular holder extending rearwardly from the access opening and, when attached, circumferentially enclosing the wrist of the respectively confined hand and sealing the internal compartment from water ingress during bodysurfing, said rail portions extending rearwardly past the tubular holder at opposite lateral sides thereof.
Claim 9
Dependent Claim
196 words
A hand fin for use in water by bodysurfers, swimmers and users participating in watersports, comprising: a generally rigid, buoyant member extending rearwardly from a prow along a longitudinal direction to a stern, and having wall means bounding an internal compartment in which a hand of a user is confined during use, and also bounding a wrist cutout at the stern to permit free wrist flexing of the confined hand relative to the buoyant member during use, said internal compartment having an access opening which constitutes the sole source of access to the internal compartment, said buoyant member having a bottom surface which faces the water during use, and an integral keel extending away from the bottom surface into the water along a depth direction that is generally perpendicular to the longitudinal direction and to a transverse direction that is generally perpendicular to the longitudinal direction; and attachable holder means on the buoyant member, for securely holding the buoyant member on the confined hand, and including a tubular holder extending rearwardly from the access opening and, when attached, circumferentially enclosing the wrist of the confined hand and sealing the internal compartment from water ingress during use.
Claim 10
Dependent Claim
196 words
A hand fin for use in water by bodysurfers, swimmers and users participating in watersports, comprising: a generally rigid, buoyant member extending rearwardly from a prow along a longitudinal direction to a stern, and having wall means bounding an internal compartment in which a hand of a user is confined during use, and also bounding a wrist cutout at the stern to permit free wrist flexing of the confined hand relative to the buoyant member during use, said internal compartment having an access opening which constitutes the sole source of access to the internal compartment, said buoyant member having a bottom surface which faces the water during use, and an integral keel extending away from the bottom surface into the water along a depth direction that is generally perpendicular to the longitudinal direction and to a transverse direction that is generally perpendicular to the longitudinal direction; and attachable holder means on the buoyant member, for securely holding the buoyant member on the confined hand, and including a tubular holder extending rearwardly from the access opening and, when attached, circumferentially enclosing the wrist of the confined hand and sealing the internal compartment from water ingress during use.
Claim 11
Dependent Claim
18 words
The hand fin according to claim 7, wherein the keel progressively increases in depth along the longitudinal direction.
Claim 12
Dependent Claim
60 words
The hand fin according to claim 7, wherein the bottom surface has curved channel portions on opposite sides of the keel, and extending both away from the keel along the transverse direction, and away from the bottom surface along the depth direction, and wherein the keel deflects water along the curved channel portions along both the transverse and depth directions.
Claim 13
Dependent Claim
40 words
The hand fin according to claim 9, wherein the bottom surface has a peripheral lip extending from the prow along the periphery of the buoyant member toward the stern, the lip extending from the periphery to the curved channel portions.
Claim 14
Dependent Claim
15 words
The hand fin according to claim 10, wherein the peripheral lip has a rounded contour.
Claim 15
Dependent Claim
172 words
A hand fin for use in water by bodysurfers, swimmers and users participating in watersports, comprising: a generally rigid, buoyant member extending rearwardly from a prow along a longitudinal direction to a stern, and having wall means bounding an internal compartment in which a hand of a user is confined during use, and also bounding a wrist cutout at the stern to permit free wrist flexing of the confined hand relative to the buoyant member during use, said internal compartment having an access opening which constitutes the sole source of access to the internal compartment, said internal compartment having a plurality of finger chambers, one for each finger of the confined hand, all of the finger chambers extending to the access opening; and attachable holder means on the buoyant member, for securely holding the buoyant member on the confined hand, and including a tubular holder extending rearwardly from the access opening and, when attached, circumferentially enclosing the wrist of the confined hand and sealing the internal compartment from water ingress during use.
Claim 16
Dependent Claim
172 words
A hand fin for use in water by bodysurfers, swimmers and users participating in watersports, comprising: a generally rigid, buoyant member extending rearwardly from a prow along a longitudinal direction to a stern, and having wall means bounding an internal compartment in which a hand of a user is confined during use, and also bounding a wrist cutout at the stern to permit free wrist flexing of the confined hand relative to the buoyant member during use, said internal compartment having an access opening which constitutes the sole source of access to the internal compartment, said internal compartment having a plurality of finger chambers, one for each finger of the confined hand, all of the finger chambers extending to the access opening; and attachable holder means on the buoyant member, for securely holding the buoyant member on the confined hand, and including a tubular holder extending rearwardly from the access opening and, when attached, circumferentially enclosing the wrist of the confined hand and sealing the internal compartment from water ingress during use.
Claim 17
Dependent Claim
57 words
The hand fin according to claim 12, wherein the holder means includes a glove having finger portions respectively secured in the finger chambers, and wherein the tubular holder is a glove extension extending rearwardly of the finger portions past the wrist of the confined hand; and wherein the holder means includes a closure on the glove extension.
Claim 18
Dependent Claim
13 words
The hand fin according to claim 13, wherein the closure is a zipper.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-01 | 1996-06-01 | 1996-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-01 | 2000-06-01 | 2000-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-01 | 2004-06-01 | 2004-12-01 | $7700.00 | Window Closed / Lapsed |