US3685477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat hull protecting apparatus
Assignee: Individual
•
Filing: 1970-09-11
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Granted: 1972-08-22
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Expires: 1990-09-11
Abstract
Abstract Apparatus for protecting a boat hull from marine growth while the boat is moored in seawater. The apparatus includes a rigid framework having a rear gate. The framework is covered with a bag formed of a flexible sheet of waterproof material that defines a space which encompasses the boat. An anti-fouling chemical is placed in this space to prevent marine growth on the boat hull. The gate and its attached portion of the bag is lowered to provide ingress and egress for the boat to be protected. The flexible bag is attached to the frame by unique means permitting ready replacement of the sheet without the use of special tools, adhesives or mechanical fasteners.
Inventors
- 👤 James J Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:02
CPC Classifications
B; B63; B63B; B63B59/00; B63B59/04; B63B59/045
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
192 words
Apparatus to protect a boat hull against marine growth, said apparatus, comprising: rigid, generally hull-shaped framework means defining a space having greater dimensions thaN the hull of a boat to be protected, said framework means including upper and lower side elements interconnected at their front ends by bow piece elements and a stem piece element connecting said bow piece elements, and with side spacer pieces connecting the intermediate portions of said upper and lower side elements; a weighted gate pivotally connected to the rear of said framework means and movable between a raised, closed position wherein it defines the aft portion of said framework and a lowered, opened position; and a bag fabricated from a flexible sheet of waterproof material, said bag being secured to said framework means and the gate thereof, with the construction and arrangement of the parts being such that when said gate is moved to its lowered opened position, a boat to be protected is provided ingress and egress from the confines of said bag, and with the recited elements of said framework means and said gate at all times positively maintaining said bag spaced from said hull.
Claim 2
Dependent Claim
192 words
Apparatus to protect a boat hull against marine growth, said apparatus, comprising: rigid, generally hull-shaped framework means defining a space having greater dimensions thaN the hull of a boat to be protected, said framework means including upper and lower side elements interconnected at their front ends by bow piece elements and a stem piece element connecting said bow piece elements, and with side spacer pieces connecting the intermediate portions of said upper and lower side elements; a weighted gate pivotally connected to the rear of said framework means and movable between a raised, closed position wherein it defines the aft portion of said framework and a lowered, opened position; and a bag fabricated from a flexible sheet of waterproof material, said bag being secured to said framework means and the gate thereof, with the construction and arrangement of the parts being such that when said gate is moved to its lowered opened position, a boat to be protected is provided ingress and egress from the confines of said bag, and with the recited elements of said framework means and said gate at all times positively maintaining said bag spaced from said hull.
Claim 3
Dependent Claim
17 words
Apparatus as set forth in claim 1 wherein said bag is removably secured to said framework means.
Claim 4
Dependent Claim
44 words
Apparatus as set forth in claim 2 wherein said framework means includes tubing pieces and split tubing elements are removably snapped about said tubing pieces, with the upper peripheral portion of said bag being secured between said tubing pieces and said split tubing elements.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |