US4406628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Training device for swimmers
Assignee: RICHEY INDUSTRIES Inc
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Filing: 1981-06-03
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Granted: 1983-09-27
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Expires: 2001-06-03
Abstract
Abstract A kickboard for supplementing the buoyancy of a swimmer when grasped by a swimmer's hands including a generally elongate rectangular member (11) of relatively lesser thickness, one side (20) of said member being a generally planar surface, the other side (30) of said member having a plurality of spaced depressions (35) having wall sections (36, 37) thereof extending a substantial portion of the thickness of said member for providing substantial structural rigidity, some of said depressions having a portion (38) thereof attached to said one side (20) of said member for enhancing the strength and rigidity of said member and some of said depressions being positioned proximate the periphery of said member to facilitate gripping by a swimmer's hands.
Inventors
- 👤 Thomas P. Rademacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:43
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/12; A63B69/14; B; B63; B63B; B63B32/00; B63B32/20; B63B32/50; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24661
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
139 words
A device for supplementing the buoyancy of a swimmer when grasped by a swimmer's hands comprising, a generally elongate rectangular member of relatively lesser thickness, one side of said member being generally planar, the other side of said member having a plurality of spaced depressions having a portion of the walls thereof extending a substantial portion of the thickness of said member for providing substantial structural rigidity, some of said depressions having a portion thereof attached to said one side of said member for enhancing the strength and rigidity of said member and some of said depressions being positioned proximate the periphery of said member, said one side of said member having a slot positioned in reverse proximity to and attached to said depressions being positioned proximate the periphery of said member, thereby facilitating gripping by a swimmer's hands.
Claim 2
Independent Claim
139 words
A device for supplementing the buoyancy of a swimmer when grasped by a swimmer's hands comprising, a generally elongate rectangular member of relatively lesser thickness, one side of said member being generally planar, the other side of said member having a plurality of spaced depressions having a portion of the walls thereof extending a substantial portion of the thickness of said member for providing substantial structural rigidity, some of said depressions having a portion thereof attached to said one side of said member for enhancing the strength and rigidity of said member and some of said depressions being positioned proximate the periphery of said member, said one side of said member having a slot positioned in reverse proximity to and attached to said depressions being positioned proximate the periphery of said member, thereby facilitating gripping by a swimmer's hands.
Claim 3
Dependent Claim
30 words
A device according to claim 1 wherein said depressions are disposed substantially uniformly throughout said other side of said member, whereby air may be selectively entrapped to provide supplemental buoyancy.
Claim 4
Dependent Claim
19 words
A device according to claim 2 wherein said depressions are separated by ribs forming interstices positioned between said depressions.
Claim 5
Dependent Claim
25 words
A device according to claim 1 wherein the longitudinal dimension of said depressions positioned proximate the periphery of said member parallels the peripheral boundary thereof.
Claim 6
Dependent Claim
22 words
A device according to claim 4 wherein additional depressions are positioned inwardly of said depressions positioned proximate the periphery of said member.
Claim 7
Dependent Claim
35 words
A device according to claim 5 wherein the longitudinal dimension of said depressions positioned internally of said depressions positioned proximate the periphery of said member have the longitudinal dimension thereof extending transversely of said member.
Claim 8
Dependent Claim
21 words
A device according to claim 1 wherein said slot is proximate to and extends continuously about the periphery of said member.
Claim 9
Dependent Claim
24 words
A device according to claim 1 having a longitudinal extremity of generally curved configuration including a plurality of linear elements interconnected by curved elements.
Claim 10
Dependent Claim
16 words
A device according to claim 1 wherein the entire surface of said member is randomly embossed.
References Cited (Backward Citations)
US2931648A
Cited
US3011602A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-26 | 1987-03-28 | 1987-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-26 | 1991-03-28 | 1991-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-26 | 1995-03-28 | 1995-09-27 | $7700.00 | Window Closed / Lapsed |