Patent US4940437A successfully refreshed from Google Patents.
US4940437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swim fin with harness
Assignee: Individual
•
Filing: 1989-01-25
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Granted: 1990-07-10
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Expires: 2009-01-25
Abstract
Abstract A swim fin includes harness for attachment to a wearer's foot, the harness including an adjustable strap secured to the fin on opposite sides of a forward portion of the wearer's foot, the adjustable strap forming an X configuration passing over the wearer's instep and around the wearer's heel. Liner straps are arranged between forward portions of the adjustable strap and the wearer's foot while lateral straps are anchored to rearward portions of the fine and secured to opposite side portions of the adjustable strap. The fin has a generally flat configuration with one or more flanges extended beneath the wearer's foot and along forward portions of the fin for controlling the amount of bending or flexing experienced by the fin.
Inventors
- 👤 John A. Piatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:09
CPC Classifications
A; A63; A63B; A63B31/00; A63B31/08; A63B31/10; A63B31/11
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
111 words
A swim fin including a harness for securing the fin beneath a wearer's foot, the harness comprising a strap passing behind the wearer's heel, along both sides of the foot and over an instep portion of the wearer's foot in an X configuration, to respective anchor points arranged on the swim fin on opposite sides of a forward portion of the wearer's foot, means for adjusting the length of the strap to conform to the wearer's foot and to secure the swim fin in place, the adjustable strap being formed by a single strap passing through slots at the forward anchor points and under the fin between the forward anchor points.
Claim 2
Dependent Claim
111 words
A swim fin including a harness for securing the fin beneath a wearer's foot, the harness comprising a strap passing behind the wearer's heel, along both sides of the foot and over an instep portion of the wearer's foot in an X configuration, to respective anchor points arranged on the swim fin on opposite sides of a forward portion of the wearer's foot, means for adjusting the length of the strap to conform to the wearer's foot and to secure the swim fin in place, the adjustable strap being formed by a single strap passing through slots at the forward anchor points and under the fin between the forward anchor points.
Claim 3
Dependent Claim
39 words
The swim fin of claim 1 further comprising lateral strap portion anchored at points on opposite sides of a rearward portion of the wearer's foot and secured to opposite side portions of the adjustable strap by respective slide means.
Claim 4
Dependent Claim
61 words
The swim fin of claim 2 wherein the swim fin is formed with a generally flat configuration beneath the wearer's foot and an outwardly tapered portion extending forwardly of the wearer's foot whereby the fin is capable of bending or flexing beneath the wearer's foot rather than only forward of the wearer's foot to further facilitate effectiveness of the swim fin.
Claim 5
Dependent Claim
44 words
The swim fin of claim 3 further comprising flange means formed longitudinally upon the swim fin beneath and along the length of the wearer's foot and extending forwardly of the wearer's foot for controlling the amount of bending or flexing experienced in the fin.
Claim 6
Dependent Claim
51 words
The swim fin of claim 2 further comprising liner straps arranged in slideable relation on respective portions of the strap passing over the instep portion of the wearer's foot to facilitate adjustment of the length of the adjustable strap and to protect the wearer's foot from irritation by the adjustable strap.
Claim 7
Dependent Claim
27 words
The swim fin of claim 5 wherein the liner straps are formed with slots adjacent the slide means for receiving opposite side portions of the adjustable strap.
Claim 8
Dependent Claim
58 words
The swim fin of claim 6 wherein the adjustable strap is formed by a single strap passing through slots at the forward anchor points and under the fin between the forward anchor points, the liner straps also being formed by a single strap similarly passing through the forward slots and under the fin between the forward anchor points.
Claim 9
Dependent Claim
28 words
The swim fin of claim 6 wherein the liner straps are formed with multiple slots adjacent the respective slide means to further enhance adjustability of the adjustable strap.
Claim 10
Dependent Claim
33 words
The swim fin of claim 2 wherein the adjustable strap is formed by a single strap passing through slots at the forward anchor points and under the fin between the forward anchor points.
Claim 11
Dependent Claim
155 words
A swim fin assembly, comprising a swim fin formed with a generally flat configuration beneath the wearer's foot and an outwardly tapered portion extending forwardly of the wearer's foot whereby the fin is capable of bending or flexing beneath the wearer's foot rather than only forward of the wearer's foot to further facilitate effectiveness of the swim fin, strap means secured to forward and rearward anchor points for passing over and around the wearer's foot to secure the swim fin thereto without impeding movement of the wearer's toes, and means for adjusting length of the strap means to conform to the size of the wearer's foot and to secure the swim fin in place, and liner straps arranged in slideable relation on respective portions of the strap passing over the instep portion of the wearer's foot to facilitate adjustment of the strap length and to protect the wearer's foot from irritation by the adjustable strap.
Claim 12
Dependent Claim
155 words
A swim fin assembly, comprising a swim fin formed with a generally flat configuration beneath the wearer's foot and an outwardly tapered portion extending forwardly of the wearer's foot whereby the fin is capable of bending or flexing beneath the wearer's foot rather than only forward of the wearer's foot to further facilitate effectiveness of the swim fin, strap means secured to forward and rearward anchor points for passing over and around the wearer's foot to secure the swim fin thereto without impeding movement of the wearer's toes, and means for adjusting length of the strap means to conform to the size of the wearer's foot and to secure the swim fin in place, and liner straps arranged in slideable relation on respective portions of the strap passing over the instep portion of the wearer's foot to facilitate adjustment of the strap length and to protect the wearer's foot from irritation by the adjustable strap.
Claim 13
Dependent Claim
44 words
The swim fin of claim 10 further comprising flange means formed longitudinally upon the swim fin beneath and along the length of the wearer's foot and extending forwardly of the wearer's foot for controlling the amount of bending or flexing experienced in the fin.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-07-09 | 1994-01-08 | 1994-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-09 | 1998-01-08 | 1998-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-09 | 2002-01-08 | 2002-07-10 | $7700.00 | Window Closed / Lapsed |