Patent US4858913A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4858913A Expired / Lapsed US ⏱️ 0.0 years remaining

Aquatic exercising aid

Assignee: Individual
•
Filing: 1988-04-29
•
Granted: 1989-08-22
•
Expires: 2008-04-29
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A buoyant device for attachment to the lower leg and ankle with strap components holding the device in place. Buoyant main body members are confined within an enclosure having a zipper closure. Buoyant inserts may be selectively removed from or added to the main body members to vary the buoyancy of the aid. Large, upright surface areas of the aid resist passage through the water and hence require muscular effort on the user's part.

Inventors

  • 👤 Craig J. Stuart

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 23:30
CPC Classifications
A; A63; A63B; A63B21/00; A63B21/008; A63B21/0084; A63B2225/00; A63B2225/60; A63B2225/605

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 155 words
An aquatic exercise aid for attachment to the human body, said aid comprising, a main body of a buoyant nature including rigid multiple buoyant block members of foamed material, at least some of said block members defining receptacles, buoyant inserts for selective installation into said receptacles to vary the buoyancy of the main body, an enclosure of a permeable nature for placement about the ankle and including compartments offset from one another, each compartment receiving one of said buoyant block members, said enclosure having a flat surface, a closure in place on said flat surface and permitting access to said compartments, retention means carried by said enclosure for holding same in substantially closed configuration to define a central open area within which a portion of the human body is received, and adjustable restraint means on said enclosure also for engagement with the human body to restrain the aid against buoyant displacement relative the human body.
Claim 2
Dependent Claim 155 words
An aquatic exercise aid for attachment to the human body, said aid comprising, a main body of a buoyant nature including rigid multiple buoyant block members of foamed material, at least some of said block members defining receptacles, buoyant inserts for selective installation into said receptacles to vary the buoyancy of the main body, an enclosure of a permeable nature for placement about the ankle and including compartments offset from one another, each compartment receiving one of said buoyant block members, said enclosure having a flat surface, a closure in place on said flat surface and permitting access to said compartments, retention means carried by said enclosure for holding same in substantially closed configuration to define a central open area within which a portion of the human body is received, and adjustable restraint means on said enclosure also for engagement with the human body to restrain the aid against buoyant displacement relative the human body.
Claim 3
Dependent Claim 43 words
The aid claimed in claim 1 wherein said buoyant block members each have a substantially upright planar surface which is outwardly disposed relative the body to impede aid passage through water, said planar surface not altered by presence or absence of said inserts.
Claim 4
Dependent Claim 216 words
An aquatic exercise aid for attachment to the ankle and lower leg of an upright user, said aid comprising, a main body including rigid multiple buoyant members of foamed construction defining multiple bores and each of said members having a planar upright outer surface acted on by the water to impede aid passage through the water and hence leg movement through the water, inserts in at least some of said bores of said buoyant members, an enclosure of a permeable nature and including compartments for said body members, a flat surface on said enclosure including a closure substantially coextensive with said surface permitting access to said compartments and said members for insert removal or installation, retention means carried by said enclosure for holding same in substantially closed configuration to define a central open area within which the lower leg is received, restraint means on said enclosure for engagement with the underside of the wearer's foot to restrain the aid against buoyant displacement, water acting on said enclosure and said upright surface of each of said buoyant members requiring muscular effort for passage through water, and varying of the buoyancy of the aid by the removal or addition of said inserts additionally contributing to the muscular effort required to keep the aid submerged and the user upright.
Claim 5
Dependent Claim 216 words
An aquatic exercise aid for attachment to the ankle and lower leg of an upright user, said aid comprising, a main body including rigid multiple buoyant members of foamed construction defining multiple bores and each of said members having a planar upright outer surface acted on by the water to impede aid passage through the water and hence leg movement through the water, inserts in at least some of said bores of said buoyant members, an enclosure of a permeable nature and including compartments for said body members, a flat surface on said enclosure including a closure substantially coextensive with said surface permitting access to said compartments and said members for insert removal or installation, retention means carried by said enclosure for holding same in substantially closed configuration to define a central open area within which the lower leg is received, restraint means on said enclosure for engagement with the underside of the wearer's foot to restrain the aid against buoyant displacement, water acting on said enclosure and said upright surface of each of said buoyant members requiring muscular effort for passage through water, and varying of the buoyancy of the aid by the removal or addition of said inserts additionally contributing to the muscular effort required to keep the aid submerged and the user upright.
Claim 6
Dependent Claim 22 words
The aid claimed in claim 3 wherein said restraint means includes a strap and a buckle in adjustable engagement with one another.

References Cited (Backward Citations)

US1622914A Cited
US3306610A Cited
US3114982A Cited
US3170175A Cited
US3334898A Cited
US4239211A Cited
US4258914A Cited
US4300759A Cited
US4384714A Cited
US4671507A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-08-21 1993-02-20 1993-08-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-08-21 1997-02-20 1997-08-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-08-21 2001-02-20 2001-08-22 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag