Patent US832445A successfully refreshed from Google Patents.
Patent US3789447A successfully refreshed from Google Patents.
US3789447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming accessory
Assignee: Individual
•
Filing: 1972-12-12
•
Granted: 1974-02-05
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Expires: 1992-12-12
Abstract
Abstract A swimming accessory adapted to be secured to one''s limb, such as an arm, and including a pair of fins which are apertured to allow the water to pass therethrough during the negative or back stroke and which are of buoyant construction to supplement the buoyancy of the user thereof. A swimming limb accessory including an elongated board, bands secured to the board to attach the same to a limb, leg or arm, a pair of fins each having an aperture therethrough and integrally constructed and hinged to the board to cause the apertures to close during the positive stroke and to cause the same to open during the back stroke to then reduce the negative water action thereon, and spring blades arranged to resiliently restrain the pivoting of the fins away from the board.
Inventors
- 👤 V Lavallee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:00
CPC Classifications
A; A63; A63B; A63B31/00; A63B31/08; A63B31/14; A63B31/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
149 words
A swimming accessory comprising a rigid elongated member having opening means made therethrough, attaching means fixed to said rigid elongated member and arranged to secure the same lengthwise to a limb with the limb applied to one side of said member, a pair of swimming fins hinged to said rigid elongated member on the other side of the latter about hinge axes extending longitudinally of said member to pivot between a first position in which said fins operatively overlap and abut the opposite lateral edges of said member, and a second limit position pivoted away from said opposite lateral edges, said fins each having apertures therethrough which are offset relative to said opening means when said fins are in said first-named position, so as to be closed by said member, liquid being allowed to flow through said fin apertures when said fins are displaced away from said firSt position.
Claim 2
Dependent Claim
149 words
A swimming accessory comprising a rigid elongated member having opening means made therethrough, attaching means fixed to said rigid elongated member and arranged to secure the same lengthwise to a limb with the limb applied to one side of said member, a pair of swimming fins hinged to said rigid elongated member on the other side of the latter about hinge axes extending longitudinally of said member to pivot between a first position in which said fins operatively overlap and abut the opposite lateral edges of said member, and a second limit position pivoted away from said opposite lateral edges, said fins each having apertures therethrough which are offset relative to said opening means when said fins are in said first-named position, so as to be closed by said member, liquid being allowed to flow through said fin apertures when said fins are displaced away from said firSt position.
Claim 3
Dependent Claim
47 words
A swimming accessory as claimed in claim 1, wherein said opening means consist of a central opening in said elongated member, whereby the latter define solid lateral portions, the apertures of said fins registering with said solid lateral portions when said fins are in said first position.
Claim 4
Dependent Claim
52 words
A swimming accessory as claimed in claim 2, wherein said elongated member has a free end arranged to be grasped by a user''s hand and said attaching means include spaced bands secured transversely to said member and extending on said one side thereof and adapted to surround the user''s arm and hand.
Claim 5
Dependent Claim
39 words
A swimming accessory as claimed in claim 3, wherein said fins further include U-shaped spring blades secured transversely of said elongated member and located intermediate said fins to resiliently restrain pivoting of said fins towards said second limit position.
References Cited (Backward Citations)
US1043776A
Cited
US1192650A
Cited
US1663328A
Cited
GB328519A
Cited
US1821974A
Cited
US3107371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |