Patent US3568790A successfully refreshed from Google Patents.
Patent US4825799A successfully refreshed from Google Patents.
US4825799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating duck blind
Assignee: Individual
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Filing: 1987-07-21
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Granted: 1989-05-02
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Expires: 2007-07-21
Abstract
Abstract A foldable sink box consisting of a rigid plasticized hull and a buoyant platform having a large central aperture for engagement by the rigid hull in assembled condition. The hull defines a relatively deep well, for sitting engagement by a hunter. The platform defines two halves, interconnected by an intermediate lengthwisely-extending hinge member. Locking brackets releasably lockingly interconnect the platform to the top edge portion of the rigid hull, concurrently with releasably locking the platform halves in coplanar fashion.
Inventors
- 👤 Robert Bergeron
- 👤 Jean-Pierre Morel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:56
CPC Classifications
B; B63; B63B; B63B7/00; B63B7/02; B63B7/04; B63B34/00; B63B34/05
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
169 words
A foldable sink box consisting of a rigid hull and a buoyant platform having a large central aperture for engagement by said hull in the assembled condition of said platform; said hull defining a relatively deep well, for sitting engagement by a hunter; said platform defining two halves, interconnected by an intermediate lengthwisely-extending hinge member; abutment means to limit the relative displacement of said platform halves between a first folded limit position, and a second extended position defining the assembled condition thereof; and locking means, to releasably lockingly interconnect said platform to the top edge portion of said hull concurrently with releasably locking said platform halves in their assembled condition ; wherein said platform constitutes a hollow casing having main spaced top and bottom walls, a buoyant material located therein but for the front portion thereof which constitutes a ballast-tank which can be adjustably filled with water through a bore made on the top face of said ballast-tank, said bore being inwardly threaded and closed by a screw plug.
Claim 2
Dependent Claim
169 words
A foldable sink box consisting of a rigid hull and a buoyant platform having a large central aperture for engagement by said hull in the assembled condition of said platform; said hull defining a relatively deep well, for sitting engagement by a hunter; said platform defining two halves, interconnected by an intermediate lengthwisely-extending hinge member; abutment means to limit the relative displacement of said platform halves between a first folded limit position, and a second extended position defining the assembled condition thereof; and locking means, to releasably lockingly interconnect said platform to the top edge portion of said hull concurrently with releasably locking said platform halves in their assembled condition ; wherein said platform constitutes a hollow casing having main spaced top and bottom walls, a buoyant material located therein but for the front portion thereof which constitutes a ballast-tank which can be adjustably filled with water through a bore made on the top face of said ballast-tank, said bore being inwardly threaded and closed by a screw plug.
Claim 3
Dependent Claim
155 words
A sink box as defined in claim 1, wherein said hinge member includes: first short cylindrical ears, spacedly mounted to the interior edge of a first one of said platform halves; second short cylindrical ears, spacedly mounted to the interior edge of the second one of said platform halves; said first ears in alternating positions with respect to said second ears so as to be matingly engageable therebetween, each of said ears having a transverse bore whereby an elongated rod is adapted to engage therethrough for pivotally interconnecting said halves; and wherein each of said platform halves interior edges includes a lower section, bearing said ears, and an upper section, which in the case of the first platform half is a lengthwise cavity and in the case of the second platform half is a lengthwise extension, said cavity and extension adapted to flatly abut against each other when said platform halves are in coplanar position.
Claim 4
Dependent Claim
42 words
A sink box as defined in claim 1, wherein a partition wall member separates said ballast-tank from said platform buoyant material and is formed by an upturned involution of said casing bottom wall, said upturned involution merging with said casing top wall.
Claim 5
Dependent Claim
91 words
A sink box as defined in claim 1, wherein said hull defines a front well portion and a rear well portion, the latter deeper than the former, each being substantially V-shaped in lengthwise section to define a pair of flat upwardly-divergent flooring walls; the inner flooring walls of said well portions merging at an intermediate section which is downwardly offset from said hull top edge portion; wherein, when the hunter sits into the hull, the center of gravity of the sink box is proximate the apex of said rear well portion.
Claim 6
Dependent Claim
41 words
A sink box as defined in claim 4, further including a cover plate, mounted to said hull top edge portion in register with said front well portion, and means to fixedly interconnect said cover plate and said hull top edge portion.
Claim 7
Dependent Claim
67 words
A sink box as defined in claim 5, further including an extension for said cover plate, hingedly mounted thereto by a hinge element, the latter transverse to said platform hinge member; said cover plate extension pivotable between a first limit position, extending over the front portion of said rear well portion, and a second limit position, flatly abutting against the top face of said cover plate proper.
Claim 8
Dependent Claim
53 words
A sink box as defined in claim 4, further including two arm-rest boxes, mounted to said hull about said rear well portion, the latter defining opposite side walls and a rear wall, said arm-rest boxes being integral to the latter side walls and to a small corresponding portion of the latter rear wall.
Claim 9
Dependent Claim
97 words
A sink box as defined in claim 1, wherein said hull edge portion includes a peripheral downturned flange and said locking means comprising a pair of transverselyspaced front locking assemblies and at least one rear locking assembly; each one of said front locking assemblies including a fixed hook, said rear locking assembly including a pivotable locking lever, said hooks and lever mounted under said flange, each assembly further including an inversely U-shaped bracket having two threaded legs, screwed to said platform, and a base leg, engaged by said hooks and lever when the sink box is assembled.
Claim 10
Dependent Claim
54 words
A sink box as defined in claim 8, wherein each said bracket threaded leg engages a smooth sleeve, transversely anchored to a reduced-thickness section of said platform, a pair of opposite bolt members locking said bracket threaded legs to said reduced-thickness section; whereby the relative height of the bracket base leg can be adjusted.
Claim 11
Dependent Claim
17 words
A sink box as defined in claim 8, wherein said locking lever is of the self-locking type.
Claim 12
Dependent Claim
19 words
A sink box as defined in claim 10, further including locking means to prevent accidental release of said lever.
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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) | 1992-05-01 | 1992-10-31 | 1993-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-01 | 1996-10-31 | 1997-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-01 | 2000-10-31 | 2001-05-02 | $7700.00 | Window Closed / Lapsed |